JPH08188030A - Vehicular air conditioner - Google Patents

Abstract

PURPOSE: To realize the comfortable air conditioning reflecting a liking of each occupant by detecting the quantities of solar radiation to reach the occupant, storing the set changing amount of the car inside temperature and the air blowing amount in correspondence with the quantities of solar radiation to reach to the occupant, and calculating the correcting amount of the control amount on the basis of the correlation between the set changing amount and the quantities of solar radiation. CONSTITUTION: Output signals of a room temperature sensor 34, an outside air temperature sensor 35, a solar radiation quantity sensor 36, a room temperature setting unit 37, an air blowing amount setting unit 38, an inside and outside air introducing selector switch 39 and a blowing-out mode switch 40 are input into a controller 30. Air conditioning is performed by controlling respective actuators 8, 14, 22 to 24, a blower fan motor 10, etc., on the basis of the detected thermal environmental information and the set information. In this case, the quantities of solar radiation to reach the occupant is calculated from the data by calculating the azimuth and the elevation. The set changing amount of the room temperature and the air blowing amount is stored in correspondence with the quantities of solar radiation to reach the occupant, and the correcting amount of the control amount is calculated on the basis of the correlation between the stored set changing mount and the quantities of solar radiation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air conditioner,
In particular, the air-conditioning control characteristics for changes in the amount of solar radiation are adapted to the feeling of each occupant.

[0002]

2. Description of the Related Art An optimum air-conditioning air outlet temperature is calculated based on the thermal environment detected by a room temperature sensor, an outside air temperature sensor, etc. BACKGROUND ART A vehicle air conditioner is known in which conditioned air is blown into a room.

By the way, since the amount of solar radiation in the thermal environment penetrates through the window as radiant heat and reaches the skin surface directly, it feels hot in the presence of solar radiation even if the temperature inside the vehicle is moderate. Therefore, in the above-described conventional vehicle air conditioner, the blowing air temperature and the blowing air amount are corrected according to the amount of solar radiation.

Here, the air conditioning control of the conventional vehicle air conditioner will be described with reference to the flowchart of FIG. Step 2
At 401, initial settings such as control constants are made, and at step 2402, the thermal environment information of each sensor and the setting information of each switch are read. In step 2403, the target blowout temperature Tof, which is a basic parameter for determining the output of each actuator, is calculated by the following equation.

[Equation 1] Here, A to E are constants, Tic is a vehicle interior temperature (hereinafter, referred to as an inside temperature), Tamb is an outside temperature of the vehicle (hereinafter referred to as an outside temperature), Qsun is a solar radiation amount, and Tptc is a set value of the inside temperature of the vehicle. (Hereinafter, referred to as a set room temperature). Step 240
In 3 to 2407, the air mix door opening, the air outlet mode, the suction door opening, and the air flow rate of the fan fan for obtaining the calculated target outlet temperature Tof are calculated, and step 2
At 408, a control signal is output to each actuator.

Here, in the formula 1, in addition to the inside temperature Tic, the outside temperature Tamb, the set room temperature Tptc, the amount of solar radiation Qsun
The term includes a term for correcting the target outlet temperature Tof according to the above. However, there are individual differences in the sense of solar radiation,
Occupants who are sensitive to changes in the amount of insolation and operate the set room temperature Tptc and the air flow rate and those who do not do so may feel unsatisfactory or excessively feeling if the correction amount is uniquely determined. In addition, since the direction of solar radiation changes as the traveling direction of the vehicle changes, the sensation of heating and cooling is greatly different depending on whether or not the occupant is exposed to solar radiation. That is, in order to perform the air conditioning control that satisfies the thermal sensation of each occupant, it is necessary to consider not only the correction based on the general solar radiation amount but also the solar radiation direction.

Therefore, there has been proposed a vehicle air conditioner which performs air conditioning control corresponding to individual differences in sense of the amount of solar radiation (see, for example, Japanese Unexamined Patent Publication No. 5-147421). In this vehicle air conditioner, the difference ΔTptc between the reference temperature Tptc (S) and the set temperature Tptc is obtained when the set room temperature Trtc is set, and the difference ΔTptc and the amount of solar radiation Qsun are calculated.
The average temperature difference ΔTptc (AVE) due to the amount of solar radiation calculated from this regression equation
Is added to Equation 1, the air-conditioning control is sequentially changed to reflect the occupant's sense of the amount of solar radiation, and the number of times of changing operation of the set room temperature Tptc accompanying the increase or decrease of the amount of solar radiation is reduced. However, even this air conditioner does not consider the individual difference in the sensation of the occupants with respect to the change in the solar radiation direction, and therefore some occupants may feel unsatisfactory or excessive.

On the other hand, there is also proposed a vehicle air-conditioning system which performs air-conditioning control in response to changes in the direction of solar radiation (see, for example, Japanese Patent Laid-Open No. 2-283522). In this vehicle air conditioner, two solar radiation sensors are installed on the left and right sides in the passenger compartment to detect the direction and intensity of solar radiation, and the air volume distribution to the front seat occupant (driver's seat and passenger seat) according to the solar radiation direction. It is controlled automatically. Further, even if the air volume distribution is fixed by manual setting, the blowout temperature is corrected according to the direction of solar radiation. However, in this vehicle air conditioner, the control correction amount for the difference between the left and right insolation amounts is fixed to an average value, and the control does not take into account individual differences in sense of insolation, Depending on the occupant, the discomfort may increase due to the change in the air flow distribution.

It is an object of the present invention to adapt the air conditioning control characteristics with respect to changes in solar radiation to the feeling of each occupant.

[0009]

In order to achieve the above object, the invention of claim 1 provides thermal environment information necessary for vehicle interior air conditioning control and a set value of vehicle interior temperature set by a room temperature setting means. The present invention is applied to a vehicle air conditioner provided with a control amount calculation unit that calculates the control amounts of the temperature control unit and the air flow control unit in the air conditioning unit. And, the air flow rate setting means for setting the air flow rate of the conditioned air into the passenger compartment, the occupant solar radiation amount detection means for detecting the amount of solar radiation reaching the occupant, the setting change amount of the room temperature setting means and the air flow rate setting means. The setting change storage means for storing the solar radiation amount detected by the passenger solar radiation amount detection means in association with each other, based on the correlation between the setting change amount and the solar radiation amount stored in the setting change storage means. And a correction amount calculation means for calculating the correction amount of the control amount. The occupant solar radiation amount detecting means of the vehicle air conditioner according to claim 2 has vehicle cabin solar radiation amount detecting means for detecting the solar radiation amount entering the vehicle interior from the left-right direction and the vertical direction of the vehicle. The azimuth angle and elevation angle of solar radiation are calculated based on the solar radiation amount detected by the detection means, and the solar radiation amount reaching the occupant is calculated based on the azimuth angle and elevation angle. The vehicle air conditioner according to claim 3, wherein the setting change storage means causes the room temperature setting means and the air flow rate setting means when the temporal change rate of the solar radiation amount detected by the occupant solar radiation amount detecting means is equal to or less than a predetermined value. The setting change amount of is stored in association with the amount of solar radiation. The vehicle air conditioner according to claim 4, wherein the correction amount calculation means uses the setting change information of a predetermined environmental condition range stored in the setting change storage means to set change information of all environmental condition ranges. When calculating by interpolation, by fuzzy inference using at least the outside air temperature detected by the thermal environment information detecting means and the solar radiation amount detected by the passenger solar radiation amount detecting means as input conditions to the antecedent part of the fuzzy rule. It is calculated. According to a fifth aspect of the present invention, there is provided control amount calculation means for calculating the control amounts of the temperature control means and the air flow rate control means in the air conditioning unit based on the thermal environment information necessary for the vehicle interior air conditioning control and the set value of the vehicle interior temperature. The present invention is applied to an air conditioner for a vehicle, which is provided with and independently air-conditions a plurality of spaces in a vehicle compartment. Then, a plurality of setting means for setting the temperature and the air flow rate of the conditioned air for each space in the vehicle compartment, and occupant insolation amount detection for detecting the insolation amount reaching each occupant seated in the plurality of spaces Means, setting change storage means for storing the setting change amount by the setting means in association with the insolation amount detected by the occupant insolation amount detection means for each space in the vehicle interior, and the setting change storage means. Correction amount calculation means for calculating a correction amount of the control amount for each space in the vehicle interior based on the stored correlation between the setting change amount for each space in the vehicle interior and the amount of solar radiation. The occupant solar radiation amount detecting means of the vehicle air conditioner according to claim 6 has a vehicle interior solar radiation amount detecting means for detecting an amount of solar radiation entering the vehicle interior from a left-right direction and a vertical direction of the vehicle. The azimuth angle and elevation angle of solar radiation are calculated based on the solar radiation amount detected by the detection means, and the solar radiation amount reaching the occupant seated in each space in the vehicle compartment is calculated from the azimuth angle and the elevation angle. Claim 7
The vehicle air conditioner of, by the setting change storage means,
When the temporal change rate of the solar radiation amount detected by the passenger solar radiation amount detection means is equal to or less than a predetermined value, the setting change amount of the setting means is stored in association with the solar radiation amount.

[0010]

In the vehicle air conditioner of the first aspect, the control amounts of the temperature adjusting means and the air volume adjusting means are calculated based on the set value of the vehicle interior temperature and the thermal environment information, and the amount of solar radiation reaching the occupant is detected. Then, the setting change amount of the vehicle interior temperature and the blown air amount are stored in association with the amount of solar radiation reaching the occupant. Then, the correction amount of the control amount is calculated based on the stored correlation between the setting change amount and the solar radiation amount. The vehicle air conditioner according to claim 2 detects the amount of solar radiation entering the vehicle from the left-right direction and the vertical direction of the vehicle, calculates the azimuth angle and the elevation angle of the solar radiation based on these solar radiation amounts, and calculates the azimuth angles. And the elevation angle are used to calculate the amount of solar radiation reaching the occupant. In the vehicle air conditioner according to the third aspect, when the temporal change rate of the amount of solar radiation reaching the occupant is less than or equal to a predetermined value, the setting change amount of the vehicle interior temperature and the blown air amount are stored in association with the amount of solar radiation. In the vehicle air conditioner according to claim 4, when the setting change information of all the environmental condition ranges is calculated by interpolation using the setting change information of the predetermined environmental condition range stored in the setting change storage means, at least outside the vehicle compartment. The temperature and the amount of solar radiation are calculated by fuzzy reasoning which is the input condition to the antecedent part of the fuzzy rule. In the vehicle air conditioner of the fifth aspect, the control amounts of the temperature adjusting means and the air volume adjusting means in the air conditioning unit are calculated based on the thermal environment information necessary for the vehicle interior air conditioning control and the set value of the vehicle interior temperature. Then, for each space in the passenger compartment, the setting change amount of the temperature of the conditioned air and the blown air amount are recorded in association with the amount of solar radiation reaching the occupant, and the stored setting change amount for each space in the passenger compartment is stored. A correction amount of the control amount for each space in the vehicle compartment is calculated based on the correlation between the amount of solar radiation and the amount of solar radiation. The vehicle air conditioner according to claim 6 detects the amount of solar radiation that enters the vehicle from the left-right direction and the vertical direction of the vehicle, calculates the azimuth angle and elevation angle of the solar radiation based on the detected solar radiation amount, and determines the azimuth angle. The amount of solar radiation reaching an occupant seated in each space inside the vehicle is calculated from the angle and elevation. In the vehicle air conditioner according to claim 7, the setting change amount of the temperature of the conditioned air and the blown air amount is set to the insolation amount when the temporal change rate of the insolation amount to the seated occupant is below a predetermined value for each space in the vehicle interior. Correlate and memorize.

[0011]

【Example】

-First Embodiment- Fig. 1 shows the configuration of a first embodiment of a vehicle air conditioner according to the present invention. This vehicle air conditioner includes an air conditioner body, a control device, a thermal environment information detector, and an operating device. The air conditioner body 1 is configured by sequentially connecting a blower unit 2, a cooling unit 3, and a heater unit 4. The blower unit 2 has an outside air introduction port 5 and an inside air introduction port 6
And an intake door 7 that opens and closes the two inlets 5 and 6.
And an actuator 8 for driving the intake door 7
A blower fan 9 for generating conditioned air and a motor 10 for driving the blower fan are installed. An evaporator 11 is installed in the cooling unit 3. The evaporator 11 is connected to a refrigeration cycle (not shown) via a pipe 12, and a low-temperature refrigerant is supplied to the evaporator 11 from an expansion valve (not shown) of the refrigeration cycle to cool the conditioned air and then to a compressor (not shown) of the refrigeration cycle. Return. Further, the heater unit 4 is provided with an air mix door 13, an actuator 14 that drives the air mix door 13, and a heater core 15. Cooling water for an engine (not shown) is supplied to the heater core 15 through a pipe 27 to heat the conditioned air passing through the heater core 15.

A defroster duct 16, a vent duct 17 and a foot duct 18 are connected downstream of the heater core 15, and opening / closing doors 19, 20 and 21 are installed at branch portions to the ducts 16, 17 and 18, respectively. To be done. These opening / closing doors 19, 20, 21 are driven by actuators 22, 23, 24, respectively. A vent grill 25 is provided at the end of the vent duct 17, and by adjusting the angle of the louver fins 26, the blowing direction into the passenger compartment can be adjusted.

The controller 30 is composed of a microcomputer and its peripheral parts, and performs intake mode control, air volume control, outlet control, outlet temperature control and the like. The controller 30 includes an automatic air conditioner switch 31 that automatically controls the air flow rate setting, a learning mode switch 32 that learns a setting operation by an occupant and corrects control characteristics to perform automatic control, and a compressor ON / compressor.
The OFF switch 33, the room temperature sensor 34 for measuring the thermal environment of the vehicle, the outside air temperature sensor 35, the solar radiation sensor 36, the room temperature setting device 37, the air flow setting device 38, and the inside / outside air for switching the inlet of the conditioned air. An introduction changeover switch 39,
Air outlet mode switch 40 for switching air outlets
, The front defroster switch 41 and the rear defroster switch 42 are connected.

The room temperature sensor 34 is an inside temperature (vehicle interior temperature).
Tic is detected, and the outside air temperature sensor 35 detects outside air temperature (outside temperature of the vehicle) Tamb. The solar radiation sensor 36 detects the solar radiation amount Qsun. 11A and 11B show the solar radiation sensor 36. FIG. 11A is a front view of the front window shield portion of the vehicle, and FIG. 11B is a cross-sectional view of the front window shield portion of the vehicle. The solar radiation sensor 36 is installed on the instrument panel inside the front windshield of the vehicle and is provided with three light receiving parts 44a, 44.
b and 44c. The light receiving section 44a is provided above the solar radiation sensor 36 and receives the solar radiation from directly above the vehicle. The light receiving portions 44b and 44c are oriented in the directions of ± θo with respect to the traveling direction of the vehicle, and are provided so as to be inclined by an angle φo. These light receiving portions 44a and 44b have output characteristics as shown in FIG. 12, and show maximum sensitivity when ± θo with respect to the traveling direction of the vehicle. The controller 30 includes three light receiving parts 44 of the solar radiation sensor 36.
Based on the amount of solar radiation detected by a, 44b, and 44c, the azimuth angle θ and the elevation angle φ of the solar radiation with respect to the traveling direction of the vehicle are calculated.

The controller 30 also includes an intake door actuator 8, a blower fan motor 10,
The air mix door actuator 14, the defroster door actuator 22, the vent door actuator 23, and the foot door actuator 24 are connected. Based on the thermal environment information detected by various sensors and the setting information set by various switches, the controller 30 drives the various actuators 8, 14, 22-.
24, the blower fan motor 10, a compressor (not shown), etc. are drive-controlled to air-condition the vehicle interior. In addition,
The operating condition of the air conditioner such as the target room temperature, the air outlet, and the air volume is displayed on the display 43.

Next, the operation of the first embodiment will be described with reference to FIGS. FIG. 2 is a flowchart showing a main program for air conditioning control. When the automatic air conditioner switch, which is the start switch of the air conditioner, is turned on, the controller 30 starts executing this main program. In step 201, the subroutine shown in FIG. 3 is executed to read the values of predetermined constants A to U used for various calculations and the occupant setting change information from the memory built in the control device body. In step 202, the subroutine shown in FIG. 4 is executed to read various thermal environment information from various sensors and various setting information including the set room temperature from various setting devices. In step 203, the subroutine shown in FIG. 5 is executed to determine the opening X of the air mix door that controls the amount of cool air passing through the heater core after passing through the evaporator. Here, the target blowout temperature Tof required to reach the set room temperature under the current heat load condition is obtained, and the air mix door opening X for achieving this blowout temperature Tof is set.
To calculate. Steps 204 and 205 are shown in FIG.
And the target air outlet temperature Tof
Optimal outlet mode processing and suction inlet processing are performed for. In the subsequent step 206, the subroutine shown in FIG. 8 is executed, and the blower fan voltage Vfan is determined based on the blower fan applied voltage characteristic that is predetermined so as to blow out the air volume according to the target blowout temperature Tof. Further, in step 207, the subroutine shown in FIG. 9 is executed, and the control signal is output to each actuator so as to obtain the various control amounts calculated in steps 204 to 206. Then, the process returns to step 202, and the above-described processing is repeated until the automatic air conditioner switch is turned off.

FIG. 3 is a flowchart showing the initial setting process, and step 201 of the main program shown in FIG.
Run on. In step 301, the target outlet temperature T of the air mix door opening processing in step 203 of FIG.
constants A to E used in the calculation of of, constants F, G, and H used in the calculation of the air mix door opening X, constants I to L used in the outlet mode processing of step 204 of FIG. Constants M to Q used in the suction port processing in step 205
And the constant R used in the air volume processing in step 206 of FIG.
Set U and. Next, at step 302, the average set temperature solar radiation correlation function α (Tamb) and the instantaneous set temperature solar radiation correlation function β used in the air mix door opening process shown in FIG.
(Tamb, Qm), the average Juan solar radiation correlation function γ (Tamb) and the instantaneous Juan solar radiation correlation function δ (Tamb, Qm) used in the air volume processing shown in FIG. 8 are read from the setting information storage memory. These are correlation functions calculated from the setting history in the setting information storage memory, and
amb) is a function that represents the characteristics of the set temperature and the air volume that the occupant can easily set according to the weather conditions (solar radiation amount Qm). The calculation results of these functions correspond to the correction amounts in each process described later, and are updated by the learning process of step 415 in the data input process shown in FIG. 4 every time the air conditioner is used. When the above initialization process is completed, the process returns to the main program of FIG.

FIG. 4 is a flow chart showing the data input process, and step 20 of the main program shown in FIG.
It is executed in 2. In this process, thermal environment information is input from each sensor, setting information is input from each setting switch, set to the corresponding variables, and stored in the setting information storage memory used for sensor value processing and learning processing. And learning processing. In step 401, the internal temperature detected by the room temperature sensor 34 is set to Tic.
Then, the outside air temperature detected by the outside air temperature sensor 35 is set in Tamb. Further, the amount of solar radiation detected by the light receiving unit 44a of the solar radiation sensor 36 is set to Qsun1, the amount of solar radiation detected by the light receiving unit 44b on the driver side is set to Qsun2, and is detected by the light receiving unit 44c on the passenger side. Set the amount of solar radiation to Qsun3. Furthermore, the set room temperature set by the room temperature setting device 37 is set to Tpt.
C, and the manually set blower fan voltage set value set by the air volume setting device 38 is set to Vfan.
Furthermore, an outlet mode switch 40 for selecting an outlet mode, an inside / outside air introduction changeover switch 39 for changing over an inlet for conditioned air, an automatic air conditioner switch 31 which is a main switch of an air conditioner, and a storage of a setting information storage memory. The setting information of the learning mode switch 32 for selecting the learning mode automatically controlled by the information is input.

At step 402, it is determined whether the automatic air conditioner switch 31 or the learning mode switch 32 is turned off, or the ignition key switch (not shown) is turned off to finish the use of the air conditioner. When the use of the air conditioner is completed, the process proceeds to step 415, the learning process routine shown in FIGS. 14 and 15 is executed, and then the process is completed. This learning process will be described later. On the other hand, if the use of the air conditioner is not completed, the routine proceeds to step 403, where the solar radiation amount and solar radiation angle calculation processing routine shown in FIG. 10 is executed, and the solar radiation amounts Qsun1, Qsun2,
Calculate the azimuth angle θ and elevation angle φ of solar radiation based on Qsun3,
Calculate the amount of solar radiation used in post-processing.

In step 1001 of FIG. 10, the azimuth angle θ is obtained based on the characteristics shown in FIG. That is, the larger one of the solar radiation amount Qsun2 of the light receiving portion 44b on the driver's seat side and the solar radiation amount QSun3 of the light receiving portion 44c on the passenger side is set to Qsu.
Let n, 1 and the smaller one be Qsun, s,

[Equation 2] Becomes In Expression 2, f (X) is a function as shown in FIG. 13 created from the relationship between the relative sensitivity ratio of the solar radiation amount and the azimuth angle θ shown in FIG. After calculating the azimuth angle θ, the process proceeds to step 1002, where the characteristics of FIG.
The solar radiation amount Qsun23 at the azimuth angle of 0 ° (the traveling direction of the vehicle) obtained from n2 and Qsun3 is calculated. The amount of solar radiation Qsun23 is such that the light receiving surface is perpendicular to the traveling direction and the elevation angle φ =
It is the solar radiation amount recognition value when mounted at 0 °. Next, the elevation angle φ is obtained from the following equation based on the insolation amounts Qsun1 and Qsun23.

(Equation 3)

In step 1004, the amount of solar radiation Qsun
1, Qsun2, Qsun3 are corrected by the azimuth angle θ and the elevation angle φ, and the central solar radiation amount Qsun, m and the driver seat solar radiation amount Qs are corrected.
Un, d and passenger seat solar radiation amount Qsun, a are calculated by the following equations.

[Equation 4]

(Equation 5)

(Equation 6) Becomes Here, the driver's seat insolation Qsun, d and the passenger's seat insolation Qsun, a are directions perpendicular to the traveling direction of the vehicle on the horizontal plane in order to determine the insolation directly inserted into the driver's seat and the passenger's seat, respectively. The solar radiation amount component of is extracted. Therefore, the lower the altitude of the sun is, and the more the solar radiation is from the right side (the more diagonal the solar radiation is), the greater the ratio to the total solar radiation. Finally, in step 1005, the amount of solar radiation Qs
A value obtained by averaging un and m over a relatively long time of about 10 minutes is calculated as the average solar radiation amount Qm in the current thermal environment, the solar radiation amount and solar radiation angle calculation processing is terminated, and the process returns to step 404 in FIG.

In step 404, it is determined whether or not the learning mode is set. If the learning mode is set, the process proceeds to step 405.
Otherwise, the process is terminated and returns to step 203 in FIG. In the learning mode, at step 405, the inside temperature Ti
It is determined whether or not the difference between c and the set room temperature Tptc is stable at a predetermined temperature or lower. If the room temperature is stable, the process is terminated and the process returns to step 203 in FIG. 2, and if the room temperature is not stable. Go to step 406. In step 406, it is determined whether or not the absolute value of the difference between the driver's seat solar radiation amount Qsun, d and the average solar radiation amount Qm is larger than a predetermined value ΔQ0. If it is larger, the process proceeds to step 407, and if not, step 40.
Skip 7 In step 407, the instantaneous solar radiation flag is turned ON (1). This instantaneous solar radiation flag is a flag for determining whether or not there is a large difference in the amount of solar radiation on the driver's seat side with respect to the amount of solar radiation that has hit the entire vehicle on average, and the initial value at the start of use is OFF (0). Is.

In step 408, the driver's seat solar radiation amount Qsu
The absolute value of the difference between n and d and the average insolation Qm is a predetermined value ΔQ1.
It is determined whether it is smaller, and if it is smaller, step 40
9. If not, skip step 409. In step 409, the above-mentioned instantaneous solar radiation flag is set to OF.
F In step 410, it is determined whether or not the set room temperature Tptc or the set fan air flow rate (Vfan) is changed. If there is a change, the process proceeds to step 411, and if not, the process proceeds to step 413. When the set room temperature Tptc or the set air volume (Vfan) is changed, it is determined whether or not a sufficient time has passed since the change in step 411 and the setting has converged to a constant value. Otherwise go to step 413. After the change of the set room temperature Tptc or the set air volume (Vfan), if the setting has converged to a constant value after a sufficient time has passed, in step 412, the setting change is used as the setting change information used in the learning process of step 415. The current time (elapsed time after using the air conditioner), the changed set room temperature Tptc or the set air volume, the driver's seat solar radiation amount Qsun, d, and the average solar radiation amount Qm are instantaneously set to the outside of the change information storage buffer. The temperature and the average amount of solar radiation are stored in the memory class to which the temperature belongs and the process proceeds to step 413. In step 413, it is determined whether or not the time elapsed since the room temperature is stable is a multiple of the predetermined time t0. If it is a multiple, the process proceeds to step 414. If not, the process returns to step 203 of FIG. As the value of t0, a relatively long time of about 10 minutes, which is the same as the time for calculating the average amount of solar radiation, is used. In step 414, the average set room temperature and the average air volume for t0 are obtained, the average set temperature, the average air volume, and the average solar radiation amount are stored as the setting information used in the learning process of step 415, and the process returns to step 203 in FIG.

FIG. 5 is a flow chart showing the air mix door opening process, which is executed in step 203 of the main program shown in FIG. In step 501,
The learning mode switch 32 determines whether the learning mode is set. If the learning mode is set, the process proceeds to step 502, and if not, the process proceeds to step 507. If the learning mode is set, step 50
At 2, it is determined whether the instantaneous solar radiation flag is ON (1).
If it is ON, the process proceeds to step 504, and if it is OFF, the process proceeds to step 503. When the instantaneous solar radiation flag is OFF,
In step 503, the normal set temperature when there is no significant change in solar radiation is determined by the following equation.

(Equation 7) Where Tptc is the currently set room temperature, α
(Tamb) is an average correlation function read in the initialization process of FIG. 4 and is an increment of the set temperature with respect to the average insolation Qm for each outside air temperature. Since α (Tamb) is set from the operating characteristics of each occupant, it is a parameter including the sensitivity of the occupant to the average insolation Qm. Therefore, Tptc, n
ew is the occupant's favorite set temperature for the average amount of solar radiation.

In step 504, the set temperature when there is a large change in solar radiation is determined by the following equation.

(Equation 8) Where β (Tamb, Qm) is the above α (Tamb)
Similarly to the above, the instantaneous correlation function read in the initialization process of FIG. 3 is the increment of the set temperature change amount with respect to the difference between the insolation amount and the average insolation amount that is momentarily hitting the driver. It is determined from the operating characteristics of the occupant. Therefore, it reflects the occupant's preference for locally hit solar radiation. That is, in the processing of steps 502 to 504, the environmental condition is distinguished between the case where the entire vehicle is insolated on average, and the case where the insolation is concentrated on the driver's seat. The correction amount obtained by learning the occupant setting for the average insolation amount is used, and in the latter environment, the occupant setting increment corresponding to the insolation amount directly hitting the occupant is added to the correction amount. As a result, the occupant's direction of solar radiation can be taken into consideration and the preference according to the amount of solar radiation directly hitting the occupant can be reliably reflected in the air conditioning control.

In step 505, the above step 5
First-order lag processing of the preset temperatures Tptc, new obtained in 03 and 504 is performed. The first-order delay processing is set temperature Tptc, new depending on ON / OFF of the instantaneous solar radiation flag.
This is a process for preventing a sudden change in control when the value of changes stepwise. Set temperature Tpt one cycle before
Using c, old and Tptc, new calculated this time, the set temperature Tptc, is determined by the following equation.

[Equation 9] Here, w is a predetermined value that satisfies 0 <W <1.

In step 506, the Tpt obtained this time is calculated.
In order to use c and new in the next cycle, Tptc,
Set as old. On the other hand, in step 507,
Since learning mode is not set, correction is not performed and Tp
The value of tc is set as it is as Tptc. In step 508, the target outlet temperature Tof is calculated by the following equation using the target room temperature Tptc ′ determined in step 505 or 507 and each sensor value.

[Equation 10] Here, since Tptc 'is a value that takes into consideration the preference of the set temperature with respect to the amount of solar radiation of each occupant, the target outlet temperature Tof
Will be corrected to reflect the passenger's preference for solar radiation. In step 509, the air mix door opening X required to blow out the target blown temperature Tof is calculated by the following equation.

[Equation 11] Here, the constants F, G, and H are set in the initialization process of FIG.

FIG. 6 is a flow chart showing the outlet mode processing, and step 2 of the main program shown in FIG.
It is executed at 04. In step 601, the target outlet temperature To is determined based on a predetermined outlet mode map.
The outlet is selected according to f. Here, the blowout state of each outlet mode will be described. (1) Vent mode The conditioned air is blown out only from the ventilator grill located on the instrument panel. (2) Bi-level mode Air is blown from both the ventilator grille and the foot outlet. (3) Foot mode Air conditioning air is blown out from the foot outlet and the defroster outlet on the upper surface of the instrument. In step 602, it is determined whether or not the air outlet mode is fixed by the manual switch 40, and when the air outlet is fixed by the occupant's manual operation, the air outlet mode corresponding to each is selected in steps 603 to 606. However, if it is not fixed by the manual switch 40, the air outlet selected in step 601 is left as it is.

FIG. 7 is a flow chart showing the suction port process, which is executed in step 205 of the main program shown in FIG. In step 701, a suction port corresponding to the target outlet temperature Tof is selected based on a predetermined suction port map. Here, the suction state of each suction port mode will be described. (1) REC mode: 100% by internal air circulation. (2) 20% FRE mode; 20% outside air introduction, 8
0% due to internal air circulation. (3) FRE mode: 100% by introduction of outside air. In step 702, it is determined whether or not the suction port mode is fixed by the manual switch 39, and if it is fixed, the suction port corresponding to the manual switch 39 operated in step 703 or 704 is selected, and the occupant is selected. If the suction port is not fixed by the manual operation of, the suction port selected in step 701 remains as it is.

FIG. 8 is a flow chart showing the air volume processing, which is executed in step 206 of the main program shown in FIG. In step 801, the blower fan applied voltage Vfan corresponding to the target blowout temperature Tof is selected based on a predetermined blower fan cage pressure map. Next, at step 802, the blower fan voltage is changed to the air flow rate setter 38.
If it is fixed by the occupant's manual operation, the output voltage Vfan 'to the blower fan motor 10 is set to the selected voltage Vfan, m in step 803. On the other hand, if the blower fan voltage is not fixed by the air volume setting device 38, the process proceeds to step 804. In step 804, it is determined whether or not the learning mode is set. If the learning mode is set, the process proceeds to step 805, and if not, the process proceeds to step 810. When the learning mode is set, in step 805, it is determined whether or not the amount of solar radiation to the driver's seat occupant changes greatly and the instantaneous solar radiation correction flag is ON (1). If it is ON, the process proceeds to step 807. OFF (0)
If so, the process proceeds to step 806.

When the instantaneous solar radiation correction flag is OFF, there is no great difference between the amount of solar radiation to the occupant and the amount of solar radiation to the entire vehicle in step 806, so that the amount of solar radiation to the entire vehicle γ (Ta
The airflow correction amount Vfan, n is calculated by the following equation using only mb).
Calculate ew.

(Equation 12) On the other hand, if the instantaneous solar radiation correction flag is ON, step 80
In step 7, Vfan, new is calculated by the following equation that takes into account the local increase in the amount of solar radiation for the occupant.

(Equation 13) In step 808, the calculated correction amount Vfan, new
Vfa that has been subjected to the first-order delay processing is added to Vfan.
Calculate n '. That is,

[Equation 14] In step 809, Vfa is used for the next process.
n and old are updated with Vfan and new, and the process returns to step 207 in FIG. Further, in step 810, since the learning mode is not set, the fan voltage obtained in step 801 is directly set to Vfan ′ and the process returns to step 207 of FIG.

FIG. 9 is a flowchart showing the output processing, which is executed in step 207 of the main program shown in FIG. In step 901, the air mix door opening X set in step 203 and step 20
The air mix door actuator 14 and the air outlet door actuator 2 so that the air outlet mode set in step 4 and the suction port mode set in step 205 are set.
2, 23, 24 and a drive signal are output to the intake door actuator 8. In the following step 902, a drive signal is output to the blower fan motor 10 so that the blower fan voltage Vfan 'set in step 206 is reached.

Next, the learning process executed in step 415 of FIG. 4 will be described with reference to FIGS. 14 and 15. In step 1401, the stored data of the average setting information storage memory is used to calculate the average set room temperature Tptc from the average insolation Qm.
The following regression equation for obtaining m is calculated by the least squares method. However, the data used is limited to those stored in the same outside temperature zone.

(Equation 15) In step 1402, it is determined whether or not the value of α calculated in the above step is negative. If negative, the process proceeds to step 1404, and if not, the process proceeds to step 1403. If α is not negative, 0 is set in α in step 1403. That is, here, it is determined whether or not the stored setting characteristics of the occupant are consistent with the increasing / decreasing direction of solar radiation,
If the characteristic that raises the set temperature is stored even though the solar radiation is increasing, this is canceled.

In step 1404, the calculated α is stored in the corresponding outside temperature class of the manual setting storage memory. In the following step 1405, it is determined whether or not there is unprocessed outside temperature class data in the data newly stored in this use, and if there is unprocessed data, step 14
Returning to 01, the above process is repeated. Step 1406
Then, the updated α data in the manual setting information storage memory is interpolated to calculate and store the function α (Tamb) based on the outside air temperature Tamb. As the interpolation method, linear interpolation may be used, or a non-linear interpolation method such as a spline curve may be used. In steps 1407 to 1412, β (Tam
b, Qm) is performed in the same manner as that for α (Tamb), but β (Tamb, Qm) is not only the outside air temperature Tamb but also the level of the average solar radiation Qm. The reason is that the data in the same class is processed. The storage classes of the ambient temperature and the average solar radiation amount in the manually set information storage memory are shown in FIGS. 16 (a) and 16 (b).

First, in step 1407, the following regression equation for calculating the set room temperature change amount ΔTptc from the instantaneous insolation change amount (Qsun, d-Qm) using the stored data in the instantaneous setting information storage memory is set to the least squares method. Determined by.

[Equation 16] Similar to the case of α, when β has an inconsistent characteristic, the process of canceling the value of β is performed. That is, in step 1408, it is determined whether or not the calculated β value is negative. If negative, the process proceeds to step 1410, and if not, the process proceeds to step 1409. When the value of β is not negative, β is set to 0 in step 1409. In step 1410, the value of β is stored in the corresponding outside temperature and average insolation class of the manually set information storage memory. In the following step 1411, it is determined whether or not the unprocessed outside temperature and the data of the average insolation class exist in the data newly stored in this use, and if there is the unprocessed data, step 140
Return to 7 and repeat the above process for unprocessed data,
If there is no unprocessed data, the process proceeds to step 1412. In step 1412, the updated β data in the manual setting information storage memory is interpolated, and the function β (Tamb, Qm) based on the outside air temperature Tamb and the solar radiation amount Qm is calculated and stored. This interpolation method may be linear interpolation or a non-linear interpolation method such as a spline curve.

In steps 1413 to 1418, γ (T
The same processing as that performed on α (Tamb) is performed on amb). First, in step 1413, for the same outside temperature class of the average setting information storage memory, the following regression equation for calculating the correction amount of the fan air flow rate Vfan from the average insolation amount Qm is determined by the least squares method.

[Equation 17] Similar to the case of α, when γ has an inconsistent characteristic, the process of canceling the value of γ is performed. That is, in step 1414, it is determined whether or not the calculated value of γ is positive. If positive, the process proceeds to step 1416, and if not, the process proceeds to step 1415. If the value of γ is not positive, γ is set to 0 in step 1415. In step 1416, the value of γ is stored in the corresponding outside temperature class of the average solar radiation correlation value storage memory. Following Step 1417
Then, it is determined whether or not the above processing has been performed for all the updated outside air temperature classes, and if there is unprocessed data, the process returns to step 1413 and the above processing is repeated for the unprocessed data. If there is no unprocessed data, the process proceeds to step 1418 to update the average solar radiation correlation function γ (Tamb).

In steps 1419 to 1424, δ (T
Amb, Qm) is subjected to the same process as that performed for α (Tamb). First, at step 1419, the local insolation Qsun, d on the driver side and the average insolation Qm are used by using the data in the instantaneous setting information storage memory.
The following regression equation for calculating the correction amount of the fan air flow rate Vfan from the difference between and is determined by the least square method.

(Equation 18) Similar to the case of α, when δ has an inconsistent characteristic, the process of canceling the value of δ is performed. That is, in step 1420, it is determined whether or not the calculated value of δ is positive. If positive, the process proceeds to step 1422, and if not, the process proceeds to step 1421. When the value of δ is not positive, δ is set to 0 in step 1421. At step 1422, the value of δ is stored in the corresponding outside air temperature and average insolation class of the instantaneous insolation correlation value storage memory. In the following step 1423, it is determined whether or not the above processing has been performed for all the updated outside temperatures and average insolation classes. If there is unprocessed data, the process returns to step 1419 and the above processing is repeated for the unprocessed data. If there is no unprocessed data, the process proceeds to step 1424 and the instantaneous solar radiation correlation function δ (Ta
mb, Qm) are updated.

According to the above processing, when the learning mode is selected, the incident angle of solar radiation is first calculated, and then the amount of solar radiation directly received by the occupant is calculated. Then, the blowing air temperature and the blowing air amount are corrected based on the amount of solar radiation directly received by the occupant. Since the degree of this correction is adjusted based on the operation performed by the occupant in the past, as the number of times of use increases, comfortable air conditioning that matches the air conditioning feeling of the occupant is realized.

-Second Embodiment- A second embodiment in which a part of the data input process of the first embodiment described above is modified will be described. The configuration and operation of the second embodiment other than the configuration and the data input process are the same as the configuration and operation of the first embodiment described above, and differences from the first embodiment will be mainly described. 17 and 18 are flowcharts showing the data input processing of the second embodiment, which is executed in step 202 of the main program shown in FIG.
The difference between the data input processing of the second embodiment and the data input processing of the first embodiment shown in FIG. 4 is that the data input processing of the second embodiment is different from the data input processing of the first embodiment in the steps. The point is that step 1611 is inserted between 410 and 411. When it is determined in step 1610 (step 410) that the set room temperature Tptc or the set fan air volume (Vfan) is changed, the process proceeds to step 1611.
It is determined whether or not the temporal change rate of the solar azimuth angle θ is larger than a predetermined value. When the time variation rate of the solar radiation azimuth angle θ is larger than the predetermined value, the process does not proceed to steps 1612 and 1613 (steps 411 and 412), and the room temperature Tp set in the memory is set.
The change information of tc or the set fan air volume (Vfan) is not stored. For example, when traveling between buildings in a city area or traveling on a winding road, the direction of solar radiation may change frequently and cannot be determined. In such a case, if the operation of changing the room temperature or the air volume of the occupant is used for learning the correction amount, it is difficult to associate the changing operation with the angle of insolation, so that the learning result becomes unreliable. Therefore,
In an environment where the direction of insolation changes frequently, the change operation is not used for learning the correction amount, and only the change operation when the insolation direction is below a predetermined value and there is insolation from a substantially constant direction is used. Used for learning. Thereby, the occupant's preference for solar radiation can be accurately learned. Although the time variation rate of the solar azimuth is used as the condition for storing in the storage memory here, all operation information is temporarily stored together with the solar azimuth temporal change rate at the time of operation, as in the first embodiment. The same effect can be obtained by ignoring data having a large time change rate in the processing.

-Third Embodiment- In the above-mentioned first embodiment, the average set temperature solar radiation correlation function α
(Tamb), instantaneous set temperature solar radiation correlation function β (Tamb,
Qm), the average fan solar radiation correlation function γ (Tamb) and the instantaneous fan solar radiation correlation function δ (Tamb, Qm) were used to calculate the correction amounts of the set room temperature Tptc and the set fan air volume (Vfan). Tpt
A third embodiment will be described in which the correction amounts of c and the set fan air flow rate (Vfan) are calculated. The configuration of the third embodiment and the operations other than the air mix door opening process and the air volume process are the same as the configuration and the operation of the first embodiment described above, and the differences will be mainly described.

FIG. 19 is a flow chart showing the air mix door opening processing of the third embodiment, which is executed in step 203 of the main program shown in FIG. The air mix door opening processing of the third embodiment is a modification of the air mix door opening processing of the first embodiment shown in FIG. In step 1701, it is determined whether or not the learning mode is set by the learning mode switch 32. If the learning mode is set, the process proceeds to step 1702, and if not, the process proceeds to step 1711. Step 17 if the learning mode is set
In step 02, the fitness Wi of the outside temperature class to which the current outside temperature Tamb belongs is calculated by the membership function shown in FIG. In the following step 1703, the weighted arithmetic mean is calculated by the following equation using the correlation function αi of each outside air temperature category i stored in the manually set information storage memory, and the average solar radiation coefficient α0 used in the current environment is calculated.

[Formula 19]

At step 1704, the instantaneous solar radiation flag is set to O.
It is determined whether it is N (1). Step 1 if ON
If it is OFF, the process proceeds to step 1705. When the instantaneous solar radiation flag is OFF, step 1705
Then, using the average insolation coefficient α0, the set temperature Tptc when there is no significant change in insolation is obtained by the following equation.

(Equation 20) On the other hand, when the instantaneous solar radiation flag is ON, step 1706
Then, each storage section i, j (i = 1, 2, ...) Of the manual setting information storage memory of the current outside air temperature Tamb and the average insolation Qm
, Namb, j = 1, 2, ..., Nqsun) is calculated from the membership functions of FIGS. 21 and 22. In step 1707, the goodness of fit Wij and the instantaneous correlation value β stored in the manual setting information storage memory
The instantaneous insolation coefficient β0 is calculated by the following equation using the value of ij.

[Equation 21] In step 1708, the set temperature Tptc, new in the case where there is a large change in solar radiation is obtained by the following equation using the average solar radiation coefficient α0 and the instantaneous solar radiation coefficient β0.

[Equation 22]

In step 1709, the set temperature Tpt
First-order delay processing for c and new is performed. Set temperature Tptc, old one cycle before and Tptc, ne calculated this time
Using w, the set temperature Tptc ′ is determined according to Equation 9. In step 1710, Tptc, ne obtained this time is calculated.
Set w as Tptc, old for use in the next cycle. On the other hand, in step 1711, since the learning mode is not set, no correction is performed and the value of Tptc is set as Tptc ′ as it is. Step 1
In step 712, the target room temperature Tptc ′ determined in step 1709 or 1711 and each sensor value are used to calculate Equation 1
The target outlet temperature Tof is calculated from 0. Where Tpt
Since c'is a value that takes into consideration the preference of the set temperature for the amount of insolation of each occupant, the target outlet temperature Tof is also corrected to reflect the occupant's preference for insolation. In step 1713, the air mix door opening degree X required to blow out the target blown air temperature Tof is calculated by the mathematical expression 11.

20 and 21 are flowcharts showing the air volume processing of the third embodiment, which is executed in step 206 of the main program shown in FIG. The air volume processing of the third embodiment is a modification of the air volume processing of the first embodiment shown in FIG. In step 1801,
Based on a predetermined blower fan voltage map, the blower fan applied voltage Vfan corresponding to the target outlet temperature Tof
Select Next, in step 1802, it is determined whether or not the blower fan voltage is fixed by the air volume setting device 38, and if it is fixed, the voltage selected as the output value Vfan ′ to the blower fan motor 10 in step 1803. Set Vfan, m. On the other hand, if the blower fan voltage is not fixed by the air volume setting unit 38, the process proceeds to step 1804.

In step 1804, it is determined whether or not the learning mode is set. If the learning mode is set, the process proceeds to step 1805, and if not, the process proceeds to step 1814. When the learning mode is set, in step 1805, the fitness Wi of the outside temperature class to which the current outside temperature Tamb belongs is calculated by the membership function shown in FIG. In the following step 1806, the weighted arithmetic mean is calculated by the following equation using the correlation function αi of each outside air temperature category i stored in the manually set information storage memory, and the average solar radiation coefficient γ0 used in the current environment is calculated.

(Equation 23) In step 1807, it is determined whether or not the amount of solar radiation to the driver's seat occupant changes significantly and the instantaneous solar radiation correction flag is ON (1). If ON, the process proceeds to step 1809, and if OFF (0). Go to step 1808.

When the instantaneous solar radiation correction flag is OFF, there is no great difference between the amount of solar radiation to the occupant and the amount of solar radiation to the entire vehicle in step 1808. The correction amount Vfan, new is calculated.

[Equation 24] On the other hand, when the instantaneous solar radiation correction flag is ON, step 18
At 09, each storage section i, j (i = 1, 2,
.., Namb, j = 1, 2, ..., Nqsun) is calculated from the membership functions of FIGS. 21 and 22. In step 1810, the goodness of fit Wij
And the instantaneous correlation value βij stored in the manually set information storage memory, the instantaneous insolation coefficient β0 is calculated by the following equation.

(Equation 25) In step 1811, Vfan, new is calculated by the following equation that takes into account the local increase in the amount of solar radiation for the occupant.

(Equation 26)

In step 1812, the calculated correction amounts Vfan, new are subjected to first-order delay processing and added to Vfan to calculate Vfan '.
In step 1813, Vf is used for the next process.
An and old are updated with Vfan and new, and the process returns to step 207 in FIG. Further, since the learning mode is not set in step 1814, the above-mentioned step 1801 is executed.
The fan voltage obtained in step S3 is set as it is in Vfan 'and the process returns to step 207 in FIG.

In the third embodiment, the set room temperature Tptc is set.
Since the membership function of fuzzy theory was introduced to calculate the correction amount of the set fan air flow rate (Vfan), as shown in FIG.
As shown in FIG. 22, each storage section of the outside air temperature and the amount of solar radiation is biased so that natural interpolation can be performed even when the division is close to a human sense.

-Fourth Embodiment- A fourth embodiment will be described in which the air conditioning control is separately performed for the driver's seat and the passenger seat. FIG. 23 shows the configuration of the fourth embodiment. It should be noted that the same components as those in the first embodiment shown in FIG. 1 are designated by the same reference numerals, and different points will be mainly described. The downstream side of the evaporator 11 of the air conditioner body 1 of the fourth embodiment is divided into a driver seat side and a passenger seat side. An air mix door 13a and a heater core 15a are installed on the driver's side, and conditioned air is supplied to the driver's seat through a vent duct 17-a and a foot duct 18-a dedicated to the driver's seat. The air mix door 13a is opened and closed by the actuator 14-a. Vent duct 17
A door is provided at each of the branch portions to the -a and the foot duct 18-a, and the doors are opened and closed by the actuators 23-a and 24-a. Further, a vent grill 25a dedicated to the driver's seat is provided at the end of the vent duct 17-a, and by adjusting the angle of the louver fins 26, the blowing direction into the passenger compartment can be adjusted. On the other hand, an air mix door 13b and a heater core 15b are installed on the passenger seat side, and conditioned air is supplied to the passenger seat via a vent duct 17-b and a foot duct 18-b dedicated to the passenger seat. The air mix door 13b is opened and closed by the actuator 14-b. Vent duct 17-b and foot duct 18-
Doors are provided at the respective branches to b, and the doors are opened and closed by actuators 23-b and 24-b. In addition, a vent grill 25b dedicated to the passenger seat is provided at the end of the vent duct 17-b, and by adjusting the angle of the louver fins 26, the blowing direction into the passenger compartment can be adjusted. The blower unit 2 and the cooling unit 3 are common to the driver's seat side and the passenger's seat side, and the range in which the air conditioning control can be independently performed on the driver's seat side and the passenger's seat side is determined by the state of devices downstream from the heater unit 4. It Further, the defroster duct 16 is connected to the downstream side of the heater core 15a on the driver's side and has the same configuration as that of the first embodiment. Further, the heater cores 15a and 15b are integrated, and are separated into a returning seat side and a passenger seat side by a partition wall of the air conditioning duct.

Next, the controller 30 of the fourth embodiment
The air conditioning control will be described. Note that the first shown in FIGS.
The difference from the air conditioning control of the embodiment will be mainly described. The difference from the first embodiment is that each setting in the input processing is read separately for the driver's seat and passenger's seat, and the air mix door, vent door and foot door provided separately for the driver's seat and passenger's seat. That is, each actuator is separately driven and controlled. Regarding the processing of the air outlet mode, the air outlet mode manually set independently on the driver's seat side and the passenger's seat side, or the driver's seat and the assistant passenger based on a predetermined air outlet mode map as shown in FIG. Select according to the target blowout temperature of the seat.

The air mix door opening processing of the fourth embodiment is performed in the procedure shown in FIG. In step 2201, it is determined whether or not the learning mode is set by the learning mode switch 32. If the learning mode is set, the process proceeds to step 2202, and if not, the process proceeds to step 2207. When the learning mode is set,
In step 2202, it is determined whether the instantaneous solar radiation flag is ON (1). If it is ON, proceed to step 2204,
If it is OFF, the process proceeds to step 2203. When the instantaneous solar radiation flag is OFF, the normal set temperature when there is no large change in solar radiation is calculated by the formula 6 in step 2203.
On the other hand, in step 2204, the set temperature when there is a large change in solar radiation is calculated by the mathematical expression 7. Next, in step 2205, the above steps 2203 and 2204 are performed.
First-order delay processing of the set temperatures Tptc, new obtained in step 1 is performed. Using the set temperatures Tptc, old one cycle before and the Tptc, new calculated this time, Tptc, dr 'in which the set temperatures Tptc, dr on the driver side are corrected is determined by the following equation.

[Equation 27] Here, w is a predetermined value that satisfies 0 <W <1.

In step 2206, the Tpt obtained this time is calculated.
In order to use c and new in the next cycle, Tptc,
Set as old. On the other hand, in step 2207, since the learning mode is not set, the correction is not performed and the values of Tptc and dr are set as Tptc and dr ′ as they are. In step 2208, the target room temperature Tptc, dr ′ determined in step 2205 or 2207 and the respective sensor values are used to calculate the target outlet temperature Tof, dr on the driver side and the target outlet temperature Tof, as on the passenger side by the following equations. To calculate.

[Equation 28]

[Equation 29] In step 2209, the driver side target outlet temperature Tof, d
r and the driver's seat side air mix door opening X, dr and the passenger's seat side air mix door opening X, as required to blow out the passenger seat side target outlet temperature Tof, as are calculated by the following equations.

[Equation 30]

[Equation 31] Here, the constants F, G, and H are set in the initialization process of FIG.

Further, the air volume processing of the fourth embodiment is shown in FIG.
The procedure is shown in FIG. In step 2301, based on a predetermined blower fan voltage map, the driver side blower fan applied voltage Vfan, dr corresponding to the driver side target blowout temperature Tof, dr and the passenger side target blowout temperature Tof, dr and the assistant Seat side blower fan applied voltage Vf
Select an and as. Next, in step 2302, it is determined whether or not the blower fan voltage is fixed by the air volume setting device 38, and if it is fixed, step 2
The driver side voltage Vfa selected as the driver side output values Vfan, dr ′ to the blower fan motor 10 at 303
Set n, dr, and m. On the other hand, if the blower fan voltage is not fixed by the air volume setting device 38, the process proceeds to step 2304. In step 2304, it is determined whether or not the learning mode is set. If the learning mode is set, the process proceeds to step 2305, and if not, the process proceeds to step 2310. When the learning mode is set, in step 2305, it is determined whether or not the amount of solar radiation for the driver's seat occupant has changed significantly and the instantaneous solar radiation correction flag is ON (1).
If it is OFF (0), the process proceeds to step 2306.

When the instantaneous solar radiation correction flag is OFF, there is no great difference between the amount of solar radiation to the driver's seat occupant and the amount of solar radiation to the entire vehicle in step 2306. Therefore, only the desired amount of solar radiation to the entire vehicle γ (Tamb) is used. The air volume correction amount Vfan, new is calculated by the above equation 12. On the other hand, when the instantaneous solar radiation correction flag is ON, in step 2307, Vfan, new is calculated by the equation 13 in consideration of the local increase in the solar radiation amount for the driver's seat occupant. In step 2308, the calculated correction amounts Vfan, new are subjected to first-order delay processing, added to Vfan, dr, and added to Vfan, dr '.
To calculate. That is,

[Equation 32] In step 2309, Vf is used for the next process.
Step 2 after updating an and old with Vfan and new
Proceed to 310A. In step 2310, since the learning mode is not set, the fan voltage obtained in step 2301 is directly set to Vfan, dr ′ and the process proceeds to step 2310A.

In step 2310A, it is determined whether or not the blower fan voltage is fixed by the passenger side air volume setting device. If it is fixed, the process proceeds to step 2311, and if not, the process proceeds to step 2312. When the blower fan voltage is fixed by the passenger side air volume setting device, in step 2311 the set fan voltage Vfa is set.
n, as, m are set to the passenger side fan voltage Vfan, as'. On the other hand, when the blower fan voltage is not fixed by the passenger side air flow rate setting device, step 2312
Then, the passenger side blower fan voltage Vfan, as selected in step 2301 is set to Vfan, as'. In step 2313, the driver side blower fan voltage Vfan, dr 'and the passenger side blower fan voltage Vf.
Blower fan 1 according to the following equation based on an, as'
The output amount Vfan 'to 0 is obtained.

[Expression 33] Here, Kd and Ka are weights determined by the ratio of the ventilation resistances of the ducts of the driver's seat and the passenger's seat, and Kd + Ka = 1. For example, if the ventilation resistances of the driver side duct and the passenger side duct are completely equal, Kd = Ka: 0.5. In step 2314, the vent door and foot door opening on the driver's side and the passenger's side are corrected from the difference between the required fan voltage Vfan 'and the actual fan voltage of each seat to obtain the desired air volume from the air outlet of each seat. Adjust to blow out.

According to the fourth embodiment, the air conditioning can be controlled separately for the driver's seat and the passenger's seat, and in the learning mode, only the driver's seat is controlled with the control characteristic corrected by the correction amount learned. The air conditioning control on the passenger side is not affected even if the control is adapted to the feeling of the driver's seat occupant when the solar radiation is biased to the driver's side. Therefore, it is possible to realize the optimum air-conditioning state without impairing the air-conditioning comfort of the passengers in each seat.

By the way, in the fourth embodiment, an example in which only the operating characteristics of the occupant on the driver's seat side are learned and the learning result is applied to the air conditioning control on the driver's seat side has been explained. It is possible to learn the operation characteristics of the passenger on the side and apply the learning result to the air conditioning control on the passenger side. In this case, it is possible to control the passenger's side passenger's preference for the partial solar radiation. However, an unspecified number of passengers may get on the passenger seat, so it is necessary to add occupant recognition means to the configuration. The occupant recognizing means may be a switch for air conditioning control, an external medium such as a memory card, image recognition, voice recognition, or the like. These recognition means may be used to recognize the driver's seat occupant. Further, in the fourth embodiment, an example in which the driver's seat and the passenger's seat are separately air-conditioned is described. However, in the case where the front seats and the rear seats are separately air-conditioned, or all the seats are individually air-conditioned. Also, the method described above can be applied, and it is possible to learn the preference of each seat occupant for partial solar radiation and apply it to air conditioning control.

In the configuration of the above embodiment, the room temperature setting device 37 is the room temperature setting means, the room temperature sensor 34, the outside air temperature sensor 35, the solar radiation sensor 36 are the thermal environment information detecting means, and the cooling unit 3 and the heater unit 4 are. The blower unit 2 is an air volume adjusting means.
The controller 30 is a control amount calculation means, a correction amount calculation means, and a setting change storage means, the air volume setting device 38 is an air volume setting means, the solar radiation sensor 36 and the controller 30.
Is an occupant insolation amount detection means, an insolation amount sensor 36 is a passenger compartment insolation amount detection means, a room temperature setting device 37 and an air flow setting device 38.
Respectively configure the setting means.

[0059]

As described above, according to the first aspect of the present invention, the control amounts of the temperature adjusting means and the air volume adjusting means are calculated based on the set value of the vehicle interior temperature and the thermal environment information, and the occupant is informed. Detects the amount of solar radiation that reaches, and stores the amount of setting change of the cabin temperature and air flow in association with the amount of solar radiation that reaches the occupant, and based on the correlation between the stored amount of setting change and the amount of solar radiation Since the correction amount of the control amount is calculated, it is possible to accurately grasp the preference of each occupant for the air-conditioning control characteristics with respect to changes in the amount of solar radiation and adapt it to the feeling for each occupant, and set the amount of solar radiation for each occupant. You can achieve comfortable air conditioning that reflects your preferences. According to the second aspect of the present invention, the amount of solar radiation that enters the vehicle from the left and right directions and the vertical direction of the vehicle is detected, and the azimuth angle and elevation angle of the solar radiation are calculated based on these solar radiation amounts, and the azimuth angles are calculated. Since the amount of solar radiation reaching the occupant is calculated based on the elevation angle,
The amount of solar radiation reaching the occupant can be accurately detected. According to the invention of claim 3, when the time variation rate of the amount of solar radiation reaching the occupant is equal to or less than a predetermined value, the setting change amount of the vehicle interior temperature and the blown air amount is stored in association with the amount of solar radiation. , For example, even in an environment where the direction of solar radiation changes frequently and is uncertain when driving between buildings or on a winding road, such as in urban areas, it is difficult to associate the amount of change in passenger settings with the amount of solar radiation. The data can be deleted, the accurate correlation between the setting change amount and the solar radiation amount can be grasped, and the occupant's preference for the solar radiation can be accurately learned. According to the invention of claim 4, when the setting change information of all the environmental condition ranges is calculated by interpolation using the setting change information of the predetermined environmental condition range stored in the setting change storage means, at least the outside temperature of the vehicle interior And the amount of solar radiation are calculated by fuzzy inference using the input conditions to the antecedent part of the fuzzy rule, so when storing the setting change characteristics for changes in the amount of solar radiation for each occupant, the setting change characteristics are set as the same environmental conditions. Even if the memorized environment range is biased and the division is close to the human sense, it is possible to perform smooth interpolation without discomfort. According to the invention of claim 5, the control amounts of the temperature adjusting means and the air volume adjusting means in the air conditioning unit are calculated based on the thermal environment information necessary for the vehicle interior air conditioning control and the set value of the vehicle interior temperature. Then, for each space in the vehicle compartment, the setting change amount of the temperature of the conditioned air and the air flow rate are stored in association with the amount of solar radiation reaching the occupant, and the stored setting change amount for each space in the vehicle interior is stored. Since the correction amount of the control amount for each space in the vehicle compartment is calculated based on the correlation with the amount of solar radiation, the air conditioning control characteristics with respect to changes in the amount of solar radiation can be adapted to the feeling for each occupant. Even if occupant-specific air conditioning control is performed, other occupants are not affected, and comfortable air conditioning can be realized for all occupants. According to the invention of claim 6, the amount of solar radiation entering the vehicle from the left and right direction and the vertical direction of the vehicle is detected, the azimuth angle and the elevation angle of the solar radiation are calculated based on the detected solar radiation amount, and those azimuth angles are calculated. Since the amount of solar radiation reaching the occupant sitting in each space inside the vehicle compartment is calculated from the elevation angle, the amount of solar radiation reaching the occupant sitting in each space inside the vehicle compartment can be accurately detected. According to the invention of claim 7, for each space in the vehicle compartment, when the time change rate of the amount of solar radiation to the seated occupant is less than or equal to a predetermined value, the setting change amount of the temperature of the conditioned air and the amount of air blow correspond to the amount of solar radiation Since it is remembered additionally, even in an environment where the direction of solar radiation changes frequently when driving between buildings and winding roads in urban areas, etc. Data that is difficult to correlate with the amount of solar radiation can be deleted, and the exact correlation between the amount of setting changes of the occupants seated in each space inside the vehicle and the amount of solar radiation can be grasped, and each occupant's preference for solar radiation can be learned accurately. can do.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a first embodiment.

FIG. 2 is a flowchart showing a main program for air conditioning control according to the first embodiment.

FIG. 3 is a flowchart showing an initialization processing routine of the first embodiment.

FIG. 4 is a flowchart showing a data input processing routine of the first embodiment.

FIG. 5 is a flowchart showing an air mix door opening processing routine of the first embodiment.

FIG. 6 is a flowchart showing a blowout port processing routine of the first embodiment.

FIG. 7 is a flowchart showing a suction port processing routine of the first embodiment.

FIG. 8 is a flowchart showing an air volume processing routine of the first embodiment.

FIG. 9 is a flowchart showing an output processing routine of the first embodiment.

FIG. 10 is a flowchart showing a routine for calculating a solar radiation amount and a solar radiation angle according to the first embodiment.

FIG. 11 is a diagram showing a solar radiation amount sensor.

FIG. 12 is a diagram showing sensitivity characteristics of a solar radiation amount sensor.

FIG. 13 is a diagram showing a relationship between a relative sensitivity ratio of a solar radiation amount sensor and an azimuth angle.

FIG. 14 is a flowchart showing a learning processing routine of the first embodiment.

FIG. 15 is a flowchart showing the learning processing routine of the first embodiment following FIG. 14;

FIG. 16 is a diagram showing storage class divisions of the outside air temperature of the manual setting information storage memory and storage class divisions of the average insolation amount of the manual setting information storage memory.

FIG. 17 is a flowchart showing a data input processing routine of the second embodiment.

FIG. 18 is a flowchart showing the data input processing routine of the second embodiment, following FIG. 17;

FIG. 19 is a flowchart showing an air mix door opening processing routine of the third embodiment.

FIG. 20 is a flowchart showing an air volume processing routine of a third embodiment.

FIG. 21 is a diagram showing a membership function of outside temperature used in the third embodiment.

FIG. 22 is a diagram showing the membership function of the amount of solar radiation used in the third embodiment.

FIG. 23 is a diagram showing a configuration of a fourth exemplary embodiment.

FIG. 24 is a flow chart showing an air mix door opening processing routine of the fourth embodiment.

FIG. 25 is a flowchart showing an air volume processing routine of a fourth embodiment.

FIG. 26 is a flowchart showing the air volume processing routine of the fourth embodiment, following FIG. 25.

FIG. 27 is a flowchart showing conventional air conditioning control.

[Explanation of symbols]

1 Air Conditioner Main Body 2 Blower Unit 3 Cooling Unit 4 Heater Unit 5 Outside Air Inlet 6 Inside Air Inlet 7 Intake Door 8 Actuator 9 Blower Fan 10 Motor 11 Evaporator 12 Piping 13 Air Mix Door 13a Driver Side Air Mix Door 13b Passenger Side Air mix door 14, 14-a, 14-b Actuator 15 Heater core 15a Driver side heater core 15b Passenger side heater core 16 Defroster duct 17 Vent duct 17-a Driver side vent duct 17-b Passenger side vent duct 18 foot duct 18-a driver's seat foot duct 18-b passenger's seat foot duct 19, 20, 21 opening / closing door 22, 23, 24, 23-a, 23-b, 24-a, 2
4-b Actuator 25 Vent grill 25a Driver side vent grill 25b Passenger side vent grill 26 Louver fin 30 Controller 31 Auto air conditioner switch 32 Learning mode switch 33 Compressor ON / OFF switch 34 Room temperature sensor 35 Outside temperature sensor 36 Solar radiation sensor 37 Room temperature setting device 38 Air volume setting device 39 Inside / outside air introduction switching switch 40 Outlet mode switch 41 Front defroster switch 42 Rear defroster switch 43 Display 44a, 44b, 44c Light receiving part

Claims (7)

[Claims] 1. A control amount of a temperature adjusting unit and an air volume adjusting unit in an air conditioning unit is calculated based on thermal environment information necessary for vehicle interior air conditioning control and a set value of a vehicle interior temperature set by a room temperature setting unit. In a vehicle air conditioner equipped with a control amount calculation means, an air flow rate setting means for setting the air flow rate of the conditioned air into the vehicle compartment, an occupant solar radiation amount detection means for detecting the amount of solar radiation reaching an occupant, and the room temperature setting. Means and setting change amount of the air flow rate setting means, the setting change storage means for storing the setting change amount stored in the setting change storage means in association with the amount of solar radiation detected by the occupant solar radiation amount detection means. And a correction amount calculation means for calculating the correction amount of the control amount based on the correlation between the amount of solar radiation and the amount of solar radiation. 2. The vehicle air conditioner according to claim 1, wherein the occupant solar radiation amount detecting means is a vehicle interior solar radiation amount detecting means for detecting an amount of solar radiation incident on the vehicle from the left-right direction and the vertical direction of the vehicle. The present invention is characterized in that the azimuth and elevation of solar radiation are calculated based on the amount of solar radiation detected by the vehicle interior solar radiation detection means, and the amount of solar radiation reaching the occupant is calculated based on those azimuth and elevation. Air conditioning system for vehicles. 3. The vehicle air conditioner according to claim 1 or 2, wherein the setting change storage means, when the temporal change rate of the solar radiation amount detected by the passenger solar radiation amount detection means is equal to or less than a predetermined value,
An air conditioner for a vehicle, characterized in that setting change amounts of the room temperature setting unit and the blown air amount setting unit are stored in association with an amount of solar radiation. 4. The vehicle air conditioner according to any one of claims 1 to 3, wherein the correction amount calculation means is setting change information of a predetermined environmental condition range stored in the setting change storage means. When calculating the setting change information of all the environmental condition range by using, the fuzzy rule at least the vehicle outside temperature detected by the thermal environment information detection means and the solar radiation amount detected by the passenger solar radiation amount detection means A vehicle air-conditioning system characterized by being operated by fuzzy inference as an input condition to the antecedent part. 5. A control amount calculation means for calculating the control amounts of the temperature control means and the air flow rate control means in the air conditioning unit based on the thermal environment information necessary for the vehicle interior air conditioning control and the set value of the vehicle interior temperature, In a vehicle air conditioner that independently air-conditions a plurality of spaces in a vehicle compartment, a plurality of setting means for setting a temperature and a blowing amount of conditioned air for each space in the vehicle compartment, and sitting in the plurality of spaces The occupant solar irradiator detecting means for detecting the amount of solar irradiance reaching each occupant, and for each space in the vehicle interior, the setting change amount by the setting means is associated with the insolation amount detected by the occupant solar radiation amount detecting means. And a setting change storage unit that stores the setting change storage unit, and the control for each space in the vehicle interior based on the correlation between the setting change amount for each space in the vehicle interior and the amount of solar radiation stored in the setting change storage unit. The amount of correction Air conditioning system characterized by comprising a correction amount calculation means for calculation for. 6. The vehicle air conditioner according to claim 5, wherein the occupant solar radiation amount detecting means is a vehicle interior solar radiation amount detecting means for detecting an amount of solar radiation incident on the vehicle interior from the left-right direction and the vertical direction of the vehicle. The azimuth and elevation of the solar radiation are calculated based on the amount of solar radiation detected by the vehicle interior solar radiation detection means, and the solar radiation reaching the occupant seated in each space in the vehicle interior is calculated by the azimuth and elevation. A vehicle air conditioner characterized by calculating an amount. 7. The vehicle air conditioner according to claim 5 or 6, wherein the setting change storage means, when the time change rate of the solar radiation amount detected by the passenger solar radiation amount detection means is equal to or less than a predetermined value,
An air conditioner for a vehicle, wherein the setting change amount of the setting means is stored in association with the amount of solar radiation.