JP3399300B2 - Vehicle parameter setting device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular parameter setting device, and more particularly to a vehicular parameter setting device for setting parameters using pulse signals.

[0002]

2. Description of the Related Art In recent years, a plurality of in-vehicle devices are mounted on a vehicle, and each of these in-vehicle devices may be capable of setting and changing a characteristic value that determines a characteristic. For example, when an air conditioner that controls the temperature inside the vehicle is taken as an example of the device inside the vehicle, the temperature is preset in order to obtain a comfortable temperature environment. The temperature inside the vehicle is kept constant according to this temperature setting. However, the set temperature value may be different depending on the sense of the occupant and the area. Therefore, the predetermined temperature value may be changed.

In the above-mentioned air conditioner, an occupant performs a setting change operation, but in order to facilitate the operation, there are some which change the set temperature, for example, by rotating a rotary dial. In this case, when the rotary dial is rotated, a pulse is output according to the rotation angle, and the pulse is used to give an instruction to change the set temperature.

As a device for changing a parameter corresponding to such a set temperature, a rotation amount of a rotary dial is detected from positions before and after a rotation operation, and a predetermined control device is instructed to change a parameter according to the rotation amount. There has been proposed a parameter setting device (see Japanese Patent Laid-Open No. 6-259072).

[0005]

However, the conventional parameter setting device outputs a predetermined pulse according to the rotation of the dial and changes the parameter according to the detection of the pulse. However, the rotation amount of the dial is rotated. Since the position is detected from the front and rear positions, it is necessary to provide a rotation position detecting means for detecting the rotation amount of the dial from the position as a device configuration.

In view of the above facts, an object of the present invention is to obtain a vehicle parameter setting device having a simple device configuration and capable of easily setting parameters using pulse signals.

[0007]

Parameter setting device of the present invention in order to achieve the above object In order to achieve the above, Misao operator for instructing the setting of the values of parameters representing the characteristics of the electronic device
An instruction means for outputting a pulse for each predetermined movement amount of the movement element that corresponds to one unit of a predetermined change amount of the set value, and within a predetermined unit time. said counting means for transmitting the number of counts the number of the pulses and the counted pulses as data output from the instruction unit, a sending unit, configured from the transmitting Yu in
Knit and connected by local area network for vehicles
Receiving data transmitted from the transmitting unit,
Based on the number of received pulse output from the counting means by the data, and calculating means for calculating a change amount from the current setting, using said change amount calculated by said calculation means parameters of said parameter And a receiving unit composed of the setting means for setting the value of.

[0008] In the above parameter setting apparatus, further connected a display means for displaying the values of the parameters set by the setting means to a local area network for the vehicle
Characterized in that it was.

[0009] In the parameter setting device, said counting means, a change and a predetermined amount of change in the characteristic is an attribute of the parameter corresponding to the moving direction of said moving element for one pulse of the movement start time of the moving element It is characterized in that the event information represented is output first, and the calculating means calculates a predetermined amount of change from the current set value of the parameter based on the event information.

[0010] The parameter setting apparatus constitutes said indication means and said counting means as a transmitting unit, constitute the computing means and said setting means as a receiving unit, the transmitting unit and the receiving unit,
Ru Tei connected by a local area network for vehicles.

In the present invention, the instruction means outputs a pulse for each predetermined movement amount of the moving element. The mover can be moved to indicate a set value of a parameter indicating the characteristic of the electronic device. For example, in the case of an air conditioner, the set temperature, which is a set value, is instructed using the temperature as a parameter. The predetermined movement amount of the moving element to which the instruction means outputs a pulse corresponds to one unit of a predetermined change amount of the set value. That is, one unit of the change amount of the set value corresponds to one pulse. In the case of the above air conditioner, it corresponds to the minimum resolution of temperature, for example, 0.5 degree or 0.1 degree. The instructing means is provided with a rotatable dial and rotating means such as a rotary switch for outputting a pulse at a predetermined rotation angle of the dial, and a moving element capable of moving linearly or curvedly is provided with a predetermined moving element. There is a slide means such as a slide switch that outputs a pulse for each movement amount.

The counting means counts the number of pulses output from the instructing means, and outputs the counted number of pulses. The counting by the counting means may be continuously performed every unit time.

It is preferable that the unit time is determined according to the amount of information and the speed of information transfer when the information is exchanged between the counting means and the arithmetic means, that is, when the information is transferred. As is well known, the time required for information transfer is determined by the amount of information at the time of transfer and the transfer speed (the amount of information that can be transferred per reference time, for example, 1 bit / second). Therefore, as the amount of information to be exchanged increases, the time for exchanging information once becomes longer. Therefore, the line for exchanging information may be a dedicated line,
When the line for exchanging information is configured so that it can be used by another electronic device, the line is monopolized for a long time by exchanging information between the counting means and the computing means. It may interfere with electronic devices. As a result, when it is expected that the amount of information will increase and the time will increase, the information transmission / reception will not be lengthened by making the information transmission / reception small. Therefore, by setting the unit time to a short time so that the information transfer time does not become long due to the information transfer mode depending on the information amount and speed when the information is exchanged between the counting means and the calculating means, Even if another electronic device is configured to be usable, the transmission / reception line does not interfere with the other electronic device.

The calculating means calculates the amount of change from the current set value of the parameter based on the number of pulses output from the counting means. The parameter represents a characteristic of the electronic device, and has a current set value such as an initial value and a value after the electronic device is operated. The number of pulses output from the counting means is a change instruction from this current set value, and one pulse corresponds to one unit of the change amount of the set value, so the change amount can be calculated from the number of pulses. The setting means sets the value of the parameter using the change amount calculated by the calculating means.

As described above, the instruction means outputs a pulse for each predetermined movement amount of the moving element, the number of output pulses is counted by the counting means in a unit time, and the counted number of pulses is output,
Based on the number of the pulses, the calculation unit calculates the amount of change from the current set value of the parameter, and the setting unit sets the value of the parameter using the calculated change amount. Therefore,
It is not necessary to detect the moving position of the mover, and the parameter can be easily set only by counting the number of pulses.

The values of the parameters set by the setting means can be displayed in the table shown means. Therefore, the value of the parameter can be easily confirmed from the outside.

[0017] The counting means outputs the event information indicating the attributes of the parameters for one pulse corresponding to the moving direction of the mover of the movement start point before Symbol moving element in the first, the computing means, said event A predetermined amount of change from the current set value of the parameter can be calculated based on the information.

The movement of the mover is accompanied by an instruction from the operator. That is, the operator expects that the value of the parameter will be changed by the operation of moving the moving element. For example,
When the value of the parameter is displayed on the display means as in claim 2, it is expected that the display will be changed immediately after the movement of the moving element is started. However, in the above-mentioned parameter setting device, since the parameter value is set after the unit time has elapsed, the parameter value is not reflected immediately after the movement of the moving element is started, and the operator may feel a sense of discomfort. Therefore, the event information indicating the attribute of the parameter corresponding to the moving direction of the moving element for one pulse at the time when the moving element starts moving, for example, the information indicating that the temperature of the air conditioner is increased by 0.1 degree is first output. The calculation means calculates a predetermined amount of change from the current set value of the parameter based on the event information. For example, since information indicating that the temperature of the air conditioner is increased by 0.1 degrees is input from the event information, a predetermined change amount, that is, the temperature to be increased (0. 1 degree) is calculated. By doing so, the value of the parameter is changed at the time when the movement of the mover is started, for example, changed and displayed on the display means, and the instruction of the operator is immediately reflected, so that the operator feels uncomfortable. Never.

By the way, in recent years, a plurality of electronic control units (hereinafter referred to as ECUs) are mounted on a vehicle, and the plurality of ECUs are connected by a bus to form a local area network for the vehicle (hereinafter referred to as an in-vehicle LAN). It has become possible to build and communicate data between these ECUs.

Further, the electronic equipment in the vehicle such as the air conditioner is
Since the occupant performs the setting change operation, the switch operation part for only operating (instruction of temperature setting) is mainly located at the position where the operation of the instrument panel etc. is easy, and the operation amount operated by the switch operation part In many cases, the switch control unit that determines the set value of the in-vehicle device is separately located. That is, the switch operation unit and the switch control unit are separated,
Communication processing is performed between the switch operation unit and the switch control unit.

Therefore, in the parameter setting device of the present invention, the instructing means and the counting means are configured as a transmitting unit, and the computing means and the setting means are configured as a receiving unit. These transmitting unit and receiving unit are connected by a vehicle local area network. In this way, by separately configuring the transmitting unit and the receiving unit and connecting with the vehicle local area network, it is not necessary to detect the moving position of the mover and the parameter can be easily set by counting only the number of pulses. It can be set, and the part to be operated and the part to be set can be separated for remote operation and multiple ECs can be set.
Can be mixed with U.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings. The present embodiment is an application of the present invention to an automatic air conditioner.

As shown in FIG. 1, the automatic air conditioner 10 of the first embodiment comprises an operation panel ECU 18, a display ECU 12, a control ECU 30, and an air conditioner 32. The operation panel ECU 18 is an operation instruction unit of an automatic air conditioner that also serves as an operation instruction unit of an audio device, and includes a panel ECU body 20 including an operation panel unit 22 including a push switch 26 and a dial 24. The push switch 26 is a switch group for instructing the selection of audio and the turning on / off of the automatic air conditioner. The dial 24 constitutes a rotary switch 31 for instructing the set temperature of the automatic air conditioner.
The detailed configuration of the rotary switch 31 will be described later (see FIG. 2).

The panel ECU body 20 includes a CPU 20A,
The microcomputer is composed of a RAM 20B, a ROM 20C, and an input / output device (I / O device) 20D, which are connected by a bus 20E so that commands and data can be exchanged. In addition, ROM20C
A processing routine, which will be described later, for converting a signal subjected to panel operation into data and outputting the data is stored in advance in the.
The I / O device 20D includes a control ECU 30 and a display ECU.
12 and the operation panel unit 22 are connected.

The display ECU 12 is composed of an ECU body 14 and a display section 16. The ECU body 14 is
The microcomputer is composed of a CPU 14A, a RAM 14B, a ROM 14C, and an input / output device (I / O device) 14D, and these are connected by a bus 14E so that commands and data can be exchanged. In addition,
The display unit 16 is stored in the ROM 14C according to the input data.
A processing routine, which will be described later, for displaying the temperature is stored in advance. The display unit 16 and the panel ECU main body 20 are connected to the I / O device 14D.

The control ECU 30 includes CPUs 30A and RA.
M30B, ROM30C, input / output device (I / O device) 3
It consists of a microcomputer equipped with 0D,
These are connected by a bus 30E so that commands and data can be transmitted and received. In addition, in the ROM 30C,
A processing routine, which will be described later, for changing the set temperature of the automatic air conditioner in accordance with the input signal is stored in advance. The panel ECU body 20 is connected to the I / O device 30D. Further, the I / O device 34D is connected to an air conditioner 32 which supplies cold air, hot air, or other wind for adjusting the temperature into the vehicle (not shown). This air conditioner 3
2 is provided with an actuator (not shown) for supplying air for adjusting the temperature such as cold air or warm air.

As shown in FIG. 2, the dial 24 (FIG. 1) constituting the rotary switch 31 is fixed to the rotary shaft 52. The rotating shaft 52 is attached to the central portion of the rotating body 50. As a result, the rotary body 50 can be rotated clockwise (rotation in the direction of arrow A in FIG. 2) or counterclockwise (rotation in the direction opposite to arrow A in FIG. 2). Is rotated in the direction. This rotating body 50
Has a thickness in a predetermined direction (a direction perpendicular to the paper surface of FIG. 2) and has a plurality of protrusions on its circumference to form a groove portion 50A and a land portion 50B.
Composed of and.

The rotary switch 31 also includes a switch 55 having a contact 54. The contactor 54 has conductivity and has one end fixed and the other end having the groove portion 50 of the rotating body 50.
It is located at A and is configured as a movable contact. A fixed point 60 on the fixed side of the contactor 54 is connected to the panel ECU body 20. This fixed point is grounded via a resistor 70. The switch 55 has contacts 56 and 58 corresponding to the fixed point 60. The contact 56 is connected to the terminal 62 via the resistor 64. The terminal 62 is connected to the port 21A of the input / output device 20D of the panel ECU body 20. Further, the contact 58 is connected to the terminal 66 via the resistor 68. The terminal 66 is connected to the port 21B of the input / output device 20D of the panel ECU body 20. It should be noted that the fixed point is supplied with electric power of a predetermined arbitrary voltage Vr from the panel ECU main body 20. Also, port 21
A and 21B are at the ground level (G
ND).

As shown in FIG. 4, by rotating the dial 24 of the rotary switch 31 to the right (rotation in the direction of arrow A in FIG. 2), the electric potential at the fixed point 60 is set between an arbitrary electric potential Vr and ground (GND). It fluctuates in a rectangular shape between. That is, when the dial 24 is rotated to the right, the contact 54 is tilted so that the contact 56 and the fixed point 60 are electrically connected to each other, and electric power of an arbitrary potential Vr supplied to the fixed point 60 is supplied to the port 21A. The contactor 54 reaches the groove portion 50A, one side (movable side) of the contactor 54 is opened, the fixed point 60 is grounded (GND), and power is switched to either of the cases where the power of the arbitrary potential Vr is not supplied to the port 21A. In this way, the pulse can be output by operating the switch.

Also, when the dial 24 of the rotary switch 31 is rotated counterclockwise (rotation in the opposite direction of arrow A in FIG. 2), the potential of the fixed point 60 is a quadrature between an arbitrary potential Vr and the ground (GND). The shape varies. That is, when the dial 24 is rotated counterclockwise, the contactor 54 tilts to contact the contact point 58 and the fixed point 6.
Arbitrary potential Vr supplied to fixed point 60 when 0 becomes conductive
Is supplied to the port 21A, the contact 54 reaches the groove 50A, one side (movable side) of the contact 54 is opened, and the fixed point 60 is grounded (GND) to an arbitrary potential V.
It switches to either the case where the power of r is not supplied to the port 21A. In this way, the pulse can be output by operating the switch.

The rotating direction of the dial corresponds to the rise and fall of the temperature setting. In the present embodiment, clockwise rotation of the dial, that is, right rotation of the rotating body 50 (rotation in the direction of arrow A in FIG. 2) corresponds to an instruction to increase the temperature setting, and left rotation of the dial, that is, left rotation of the rotating body 50 (see FIG. 2). The rotation in the opposite direction of arrow A) corresponds to the temperature setting down instruction. Therefore, it is possible to discriminate an instruction to raise or lower the temperature setting depending on whether or not there is an input to any of the ports 21A and 21B.

In the present embodiment, an example of the rotary switch for rotating the dial will be described below, but the present invention can also be applied to a slide switch. That is, as shown in FIG. 3, instead of the rotary switch 31, a slide switch 31A can be adopted. Slide switch 3
1A is provided with a moving body 72, which has a thickness in a predetermined direction (a direction perpendicular to the paper surface of FIG. 3) and has a plurality of protrusions on a straight line, and has a groove portion 72A and a land portion 72B. Composed of and. The dial 30 is attached to the moving body 72, and is linearly movable in the right direction (the direction of arrow B in FIG. 3) or the left direction (the direction opposite to the arrow B in FIG. 3). Be moved to. Note that the configuration of the switch 55 and subsequent components including the contactor 54 is the same as that described above, and thus the description thereof is omitted.

As a result, the dial 24 of the slide switch 31A is moved to the right (direction of arrow B in FIG. 3) or left (FIG. 3).
By moving in the opposite direction of arrow B), the potential of the fixed point 60 fluctuates in a rectangular shape between the arbitrary potential Vr and the ground (GND) (see FIG. 4). Therefore, similarly to the rotary dial, it is possible to discriminate the instruction to increase or decrease the temperature setting depending on whether or not the power is input to any of the ports 21A and 21B.

Next, the operation of this embodiment will be described. First, by turning on an accessory switch or the like by rotating an ignition key (not shown), power is supplied to each ECU from a battery (not shown).

The operation panel ECU 18 executes the processing routine shown in FIG. In step 130, port 21
By determining whether or not an input (arbitrary potential Vr) is made to either A or 21B, it is determined whether or not the occupant rotates the dial 24 of the operation panel unit 22 to operate the rotary switch 31. . When the occupant rotates the dial 24 of the operation panel unit 22, an input is made to one of the ports 21A and 21B, an affirmative decision is made in step 130, and the operation proceeds to step 132. On the other hand, the ports 21A, 21
If there is no input to either B, step 130
The negative decision is made at step 130, and the decision at step 130 is repeated.

In step 132, the pulse number "0" of the rotary switch 31 is transmitted as data. In the next step 134, counting of the pulse number C of pulses from the rotary switch is started. In this step 134, the pulse number C is reset, and in the next step 135, the port 21
Read the inputs of A and 21B. In step 134, the timer 20G is reset in order to measure the unit time t. In the next step 136, the input is port 21
If it is A, it is affirmed in step 136, and in step 138 the pulse number C is incremented (C = C + 1) and the routine proceeds to step 144. On the other hand, if the input is not to the port 21A, the determination at step 136 is negative, and the next step 14
At 0, it is determined whether the input is to the port 21B. If the input is to the port 21B, the affirmative determination is made in step 140, the pulse number C is decremented in step 142 (C = C-1), and the flow proceeds to step 144. If both steps 136 and 140 are denied, no pulse is output from the rotary switch, that is, the dial is not rotated, so the flow proceeds to step 144 without changing the pulse number C.

In step 144, the timer 20G is read, and it is determined whether the read time exceeds a predetermined unit time t, thereby determining whether the unit time t has elapsed. When the unit time t has not elapsed, the determination at step 144 is negative, the process returns to step 135 to continue counting the number of pulses. On the other hand, when the unit time t has elapsed, the affirmative determination is made in step 144, and the flow proceeds to step 146.

In step 146, the pulse number C is zero (C
= 0) is determined. Step 14 when C = 0
Affirmed by 6. That is, when the pulse is not transmitted within the unit time t, it is considered that the switch operation has been completed, and the process returns to step 130. On the other hand, if C ≠ 0, the determination is negative in step 146, and the number of pulses transmitted within the unit time t is transmitted as data in the next step 148. In the next step, it is judged whether or not the transmission is completed, and step 148 is repeatedly executed until the transmission is completed. On the other hand, when the transmission is completed, the process returns to step 134 to continue counting the number of pulses within the unit time.

As described above, the operation panel ECU 18
Then, the pulse number C within the unit time t is transmitted. When transmitting the number of pulses C, an identifier indicating that the pulse has been transmitted from the operation panel ECU 18 is added and transmitted. This makes it possible to determine from which ECU the transmitted data is transmitted.

FIG. 5 shows the ports 21A, 21 when the switch is operated by rotating the rotary switch.
Any potential fluctuation of B (arbitrary potential Vr or GND)
Is an image of. When the occupant rotates the dial to the right or left to perform the switch operation, electric power is supplied to either of the ports 21A and 21B with the rotation. That is, a rectangular wave (pulse) that changes between the potential Vr and GND is output from the rotary switch. In FIG. 5, the time when the potential Vr is supplied is shown as ON, which indicates that the rotary switch is on, and the time when the potential Vr is not supplied is shown as OFF, which is off. Also, the unit time t
Is the unit time t1, t in time series from the start of the switch operation.
2, t3 and t4.

Therefore, when the switch operation is started, the data "0" is transmitted first, and the data "2" which is the number of pulses counted for the first unit time t1 is transmitted.
Then, the data “1”, which is the number of pulses within the second unit time t2, is sequentially transmitted, the data “2” that is the number of pulses within the third unit time t3, and the fourth unit time t are sequentially transmitted.
Data "1", which is the number of pulses within 4, is transmitted. In this way, the pulse number is transmitted at the timing of the constant time t which is the unit time.

In the above, the number of pulses C when the switch is operated.

Although the data of [0] is transmitted, the pulse number C may be transmitted every unit time t without detecting the switch operation. That is, only the counted pulse number may be transmitted. In this case, the process is started from step 134 when the power is turned on. If the affirmative decision is made in step 146, the process returns to step 134. By doing so, the number of pulses is counted in a unit time t from the start of power-on, and the pulse number C is output, so that the processing can be simplified.

Next, the processing of the control ECU 30 will be described. When the power is turned on, the control ECU 30 executes the processing routine of FIG. First, step 100 is executed until the data is received, and when the data is received, the received data is discriminated in the next step 102.
In step 102, the type and source of data such as which ECU the received data is from and what the data represents is determined. In the present embodiment, the operation panel EC
Since the pulse number C to which the identifier indicating that the data has been transmitted from U18 is added is transmitted from the operation panel ECU 18, this identifier is determined.

From the determination result of this step 102, in the next step 104, the received data is the control ECU.
It is determined whether the data is for 30. That is, in the present embodiment, the determination condition that the data from the operation panel ECU 18 is the data for the control ECU 30 is preset. If the received data is not the data for the control ECU 30, the determination at step 104 is negative, and this routine ends. On the other hand, when the received data is the data for the control ECU 30, the affirmative determination is made in step 104, and step 1
Proceed to 06.

The operation panel ECU 18 and the control EC
If the U30 and the U30 are connected on a one-to-one basis, step 1
The processing of 02 and 104 is not necessary, but the operation panel ECU
When another ECU is connected in addition to 18 and the control ECU 30, the processes of steps 102 and 104 are necessary to identify the ECU.

At step 106, control processing is performed on the received data. As described above, the operation panel E
The data from the CU 18 is an instruction to change the set temperature. Therefore, in step 106, the change of the set temperature of the air conditioner 32 is controlled. That is, since the instruction to change the temperature from the current set temperature is given by the number of pulses C, the number of pulses, which is the received data, can be obtained by multiplying the number of pulses C by a predetermined value (the amount of temperature change corresponding to one pulse). C
Is calculated, and the drive amount of an actuator (not shown) for driving the air conditioner 32 to achieve the temperature change amount is calculated.

At the next step 108, the temperature change amount corresponding to the pulse number C is added to the current set temperature to obtain the temperature instructed to set and set as the data for display. In the next step 110, the air conditioner 32 is driven by outputting the drive amount of the actuator (not shown) obtained in step 106 to the air conditioner 32. As a result, the air conditioner 32 supplies cold air, warm air, or other wind for adjusting the temperature into the vehicle.

In the next step 112, the above step 1
The display data, which is the temperature set in 08, is transmitted, and this routine is ended. When transmitting the display data, an identifier indicating that the data has been transmitted from the control ECU 30 is added and transmitted. This makes it possible to determine from which ECU the transmitted data is transmitted.

As described above, the control ECU 30 controls the air conditioner 32, and creates and outputs the display data which is the temperature set and instructed by the panel.

Next, the processing of the display ECU 12 will be described. When the power is turned on, the display ECU 12 executes the processing routine of FIG. First, step 120 is executed until the data is received, and when the data is received, the received data is discriminated in the next step 122.

Although the data received by the display ECU 12 comes from the operation panel ECU 18 in the structure of the present embodiment, it is assumed here that the operation panel ECU 18 can bypass the data.

At step 122, the type and source of the data such as which ECU the received data is from and what the data represents is determined. In this embodiment, the identifier added to the data is determined. This identifier includes
As described above, there is an identifier added to the pulse number C indicating that the operation panel ECU 18 has transmitted, and an identifier added to the display data that indicates that the control ECU 30 has transmitted.

From the determination result of this step 122, in the next step 124, the received data is the display ECU.
It is determined whether or not the data is for 12. That is, in the present embodiment, the determination condition that the data from the control ECU 30 is the data to the display ECU 12 is preset. If the received data is not the data for the display ECU 12, the result in step 124 is NO, and this routine is ended.

On the other hand, the received data is the display ECU 12
If it is the data for, the affirmative determination is made in step 124, and the display control is performed in step 126 to end the present routine. The display control process of step 126 is a process of displaying the received data on the display unit 16 of the display ECU 12 as a numerical display or a graphic display.

The display ECU 12 and the control ECU 3
If 0 and one-to-one connection, step 122
And 124 are not necessary, but if another ECU is connected in addition to the display ECU 12 and the control ECU 30, steps 122 and 124 are used for ECU identification.
Processing is required.

As described above, in this embodiment, when the rotary switch operation is started, the data of the number of pulses within the unit time t is exchanged. Since this unit time can be set in advance, it is possible to send and receive data at the timing of the unit time, and it is possible to suppress the occupancy rate of the line (communication) necessary for sending and receiving data. As a result, even if another ECU uses a line (communication), it is possible to prevent the line from being occupied for a long time by exchanging information, so that there is no hindrance to the other ECU. Further, since the switch operation can be detected and the control corresponding to the switch operation can be performed by a simple exchange of information such as data exchange of the number of pulses within the unit time t, the load on the ECU can be minimized.

Also, since the switch operation can be detected and the control corresponding to the switch operation can be performed by a simple exchange of information such as data transmission / reception of the number of pulses within the unit time t, the operation panel ECU 18, the display ECU 12, and It is not necessary to increase the speed of information exchange (communication speed) between each of the control ECUs 30. Therefore, the device cost can be kept low.

In the above-mentioned embodiment, the case where the number of pulses is transmitted at a timing of a fixed time (unit time t) to change the parameter has been described. However, at the first time when the occupant operates the rotary switch, after a fixed time. Otherwise parameter,
That is, since the temperature display and the air conditioning control are not changed and the operation of the air conditioner corresponding to the instruction of the passenger is not reflected, the passenger may feel uncomfortable.

Therefore, in the second embodiment, the operation of the air conditioner is reflected in response to the passenger's instruction. Since the present embodiment has substantially the same configuration as that of the above-described embodiment, the same parts are designated by the same reference numerals, detailed description thereof will be omitted, and parts having different operations will be described below.

In the operation panel ECU 18, when the processing routine of FIG. 10 is executed and the rotary switch 31 is operated (Yes at step 130), the routine proceeds to step 160, where the inputs of the ports 21A and 21B are read and the port 2
The event corresponding to the input of 1A and 21B is set. That is, when the occupant rotates the dial 24 of the operation panel unit 22 to the right, it is a temperature rise instruction. Therefore, when an input is made to the port 21A, since the instruction is to raise the temperature, an event indicating raising the temperature is set, and the event is transmitted in the next step 162. On the other hand, when the occupant rotates the dial 24 of the operation panel unit 22 counterclockwise, a temperature lowering instruction is given. Therefore, when the port 21B is input, the instruction is to lower the temperature. Therefore, an event indicating that the temperature is to be lowered is set, and the event is transmitted in the next step 162. Then, step 13 in FIG.
The transmission of the number of pulses within the unit time t is repeated in the same manner as 4 onward.

In the present embodiment, the event can be associated with the minimum number of pulses to which a code is added. In other words, as an event indicating that the temperature is raised, "+
1 ”, as an event indicating that the temperature is lowered,
Set to "-1". As a result, the event represents the minimum change amount together with the temperature change instruction.

As described above, the operation panel ECU 18
Then, when the operation is started, an event representing the operation is transmitted, and then the pulse number C within the unit time t is transmitted.

FIG. 6 shows an image of the potential fluctuation (arbitrary potential Vr or GND) of either of the ports 21A and 21B when the switch is operated by rotating the rotary switch in the present embodiment. It is a thing.
When the occupant rotates the dial to the right or left to perform a switch operation, a rectangular wave that changes between the potential Vr and the GND is output from the rotary switch as the switch rotates. In FIG. 6, when the potential is Vr, it is shown as ON, which indicates that the rotary switch is on, and when it is not supplied, it is shown as OFF, which is off. The unit time t is the unit time t5, t6, t7,
It is shown as t8.

When the switch operation is started, an event is set at the first pulse and the event is transmitted,
The unit time t is measured from the end of the first pulse, and the data “2”, which is the number of pulses counted for the first unit time t5, is transmitted. Then, sequentially, the second unit time t
Data "1" which is the number of pulses within 6 is transmitted, data "1" which is the number of pulses within the third unit time t7 is transmitted, and data "1" which is the number of pulses within the fourth unit time t8. Is sent. As described above, the event is first transmitted at the first pulse, and the pulse number is sequentially transmitted at the timing of the constant time t which is the unit time.

The control ECU 30 first receives an event according to the processing routine of FIG. 8 (step 1
00 to 104), in step 106, the minimum change amount (temperature change amount) corresponding to the temperature change instruction is obtained in order to control the received data, that is, to change the set temperature of the air conditioner 32. The drive amount of an actuator (not shown) that should drive the air conditioner 32 to achieve the change amount is obtained. Then, the air conditioner 32 is driven (step 110) to supply cold air, warm air, or other wind for adjusting the temperature into the vehicle, and the display data of step 108 is transmitted (step 11).
2).

When the number of pulses is transmitted after receiving the event, the air conditioner 32 is driven by the number of pulses C and the display data is output at the timing of the unit time t in the same manner as the processing of FIG. .

Further, when the display ECU 12 first receives data that is an event (steps 120 to 124) in accordance with the processing routine of FIG. 9, it performs display control to display the minimum change amount, and the display unit 16 displays a numerical value. It is displayed or displayed graphically (step 126). Then, when the number of pulses is transmitted after receiving the event, the amount of change by the number of pulses C is displayed at the timing of the unit time t in the same manner as the processing of FIG. 9 described above.

As described above, the control ECU 30 controls the air conditioner 32 immediately after receiving the event, and also creates and outputs the display data which is the temperature set and instructed by the panel. Control is started without waiting. Accordingly, the air conditioning and the display are changed from the time when the occupant operates the rotary switch, and the operation and the display of the air conditioner are reflected so as to correspond to the instruction of the occupant, so that the occupant does not feel uncomfortable.

In the present embodiment, the case where the event is associated with the minimum pulse number assigned with the code has been described, but it is converted into data and output (transmitted) as event information indicating that the temperature is raised or lowered. You may

In the above embodiment, the input / output device of the ECU detects the rotational direction or the linear (curved) moving direction. However, a sensor for detecting the rotational direction or the linear (curved) moving direction is newly provided. Alternatively, the rotation direction or the linear (curved) movement direction may be detected by the signal from the sensor. Also, the case where two ports are provided according to the rotation direction or the linear (curved) moving direction has been described, but different potentials are input depending on the rotation direction or the linear (curved) moving direction. You may do it.

In the above embodiment, the switch which outputs the pulse of two potentials corresponding to the rotating direction or the linear (curved) moving direction has been described, but the pulse for three or more potentials is used. May be.

In the above embodiment, the operation panel E is used.
The case where the CU 18, the display ECU 12, and the control ECU 30 are applied to the auto air conditioner device 10 has been described, but a system for connecting a plurality of ECUs by a bus to construct an in-vehicle LAN and performing data communication between these ECUs. Of course, it is applicable to.

[0073]

As described above, according to the present invention, the instruction means outputs a pulse for each predetermined movement amount of the moving element, the number of pulses is counted by the counting means in a unit time, and based on the number of pulses. Since the calculation means calculates the amount of change from the current setting value of the parameter and the setting means sets the parameter value, it is not necessary to detect the moving position of the mover, and it is easy to count only the number of pulses. The parameters can be set, and a predetermined parameter change can be quickly obtained.

[0074] Further, in the this to be displayed on the display means the value of a parameter, Ru can be easily confirmed the value of the parameter from outside.

[0075] Further, it outputs the event information for one pulse of the movement start time of the moving element, by calculating the predetermined change amount from the current setting of the parameter based on the event information, an event communication it allows before reaching the unit time, it is possible to obtain a parameter change instruction of the operator is reflected immediately, it is not name that operator feel uncomfortable.

According to the present invention, by separately configuring the transmitting unit and the receiving unit and connecting with the vehicle local area network, it is not necessary to detect the moving position of the mover, and only the number of pulses is counted. The parameters can be easily set, and the operation part and the setting part can be separated to allow remote operation and can be mixed with a plurality of ECUs.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of an automatic air conditioner according to the present embodiment.

FIG. 2 is a block diagram showing a configuration of a rotary switch.

FIG. 3 is a block diagram showing another application example of the configuration of the rotary switch.

FIG. 4 is a diagram showing a relationship between a potential at a fixed point of a rotary switch and time.

FIG. 5 is an image diagram for explaining information related to a pulse when the rotary switch is operated according to the first embodiment.

FIG. 6 is an image diagram for explaining information related to a pulse when the rotary switch is operated according to the second embodiment.

FIG. 7 is a flowchart showing a processing flow of an operation panel ECU according to the first embodiment.

FIG. 8 is a flowchart showing a processing flow of a control ECU according to the first embodiment.

FIG. 9 is a flowchart showing a processing flow of the display ECU according to the first embodiment.

FIG. 10 is an operation panel ECU according to the second embodiment.
3 is a flowchart showing the flow of the processing of FIG.

[Explanation of symbols]

10 Auto air conditioner 12 Display ECU 14 ECU body 16 Display 20 Operation panel ECU 22 Operation panel 30 Control ECU 32 air conditioner

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B60H 1/00 103

Claims (3)

(57) [Claims] 1. A mover movable by an operation of an operator for designating a set value of a value of a parameter representing a characteristic of an electronic device, and corresponding to one unit of a predetermined change amount of the set value. Indicating means for outputting a pulse for each predetermined movement amount of the moving element, and counting the number of the pulses output from the indicating means within a predetermined unit time, and data of the counted number of pulses.
Counting means for transmitting and a transmitting as unit
And the transmission unit and local area network for vehicles
Connected with, receive the data transmitted from the transmission unit, and receive
It was based on the number of output pulses from said counting means by the data, and calculating means for calculating a change amount from the current value of the parameter, using said change amount calculated by said calculating means parameters < Setting unit for setting the value of the reception unit,
And a parameter setting device for a vehicle . 2. A display means for displaying the value of the parameter set by the setting means is provided in the vehicle local area network.
The vehicle parameter setting device according to claim 1 , further comprising a network . 3. The counting means changes and sets the characteristic, which is an attribute of the parameter corresponding to the moving direction of the mover for one pulse at the time of starting the move of the mover.
The event information representing the amount of change of the parameter is first output, and the calculating means calculates a predetermined amount of change from the current set value of the parameter based on the event information. The parameter setting device for vehicle according to item 1.