JP2549014Y2 - Automotive air conditioners - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application] The present invention relates to manual air blowing.
The present invention relates to an air conditioner for a vehicle in which a set temperature is automatically changed in conjunction with a change in a position (hereinafter, also referred to as an air outlet) .

[0002]

2. Description of the Related Art Conventionally, an air conditioner for a vehicle generally used includes detection signals from various sensors provided inside and outside a vehicle cabin and a temperature control switch provided inside the vehicle cabin. There is a so-called auto air conditioner that automatically sets the air-conditioning state in a vehicle compartment to a comfortable state based on a temperature setting signal. This automatic air conditioner is usually designed to automatically control the air conditioning state based on the above-described signal, but it is also possible to perform manual control in consideration of the possibility that the occupant may desire a different air conditioning state. Has become. The switching from the automatic control of the air-conditioning state to the manual control is generally performed automatically by operating either an outlet switch or a fan switch. For example, if the occupant operates the air outlet switch without being satisfied with the air conditioning state currently set by the automatic control, the air outlet is set to the air outlet corresponding to the operation, and then the air outlet is set to the air outlet.
Condition (hereinafter also referred to as air conditioning mode in this specification)
You. ) , The temperature control based on the temperature setting signal from the temperature control switch is performed.

[0003]

However, in such a conventional air conditioner for a vehicle, only manual control is switched uniformly based on the operation of an occupant's air outlet switch and the like. In some cases, it is difficult to achieve the desired air conditioning condition. For example, when the control of the air-conditioning state is performed automatically, and when the air-conditioning mode is the bi-level mode and the setting is changed to the foot mode by the outlet switch, the occupant cannot feel the heating feeling. Although it seems that the user wants to increase the air-conditioning mode, the conventional air-conditioning system for a vehicle does not consider this at all and simply changes the air conditioning mode to the foot mode. Therefore, although the blowing position of the temperature-controlled wind is changed, the temperature is not changed at all, so that the air blown from below the feet may feel cold. The above is also true when the air conditioning mode is changed from the bi-level mode to the vent mode. In this case, the air is blown out toward the face despite the desire to increase the cooling feeling. The air may feel warm. In either case, the air conditioner is temporarily, but temporarily, contrary to the intention of the occupant.

The present invention has been made in view of such a problem of the prior art. When the air conditioning mode is manually changed, the set temperature is automatically changed according to the change of the mode. It is another object of the present invention to provide an air conditioner for a vehicle in which an air condition required by an occupant is realized.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a detection signal from various sensors provided inside and outside a vehicle compartment and a temperature setting signal from temperature setting means for setting the temperature inside the vehicle compartment. based on, in an automobile air conditioning system for automatically controlling the blowoff position of the temperature and the air of the air blown into the passenger compartment, an air blowing position changing means for changing the balloon position manually, the blowing position changing hands
A temperature setting signal changing means for forcibly changing a temperature setting signal from the temperature setting means in response to the change when the blowing position is changed by a step .

[0006]

According to the present invention constructed as described above, the air blowing
When the outlet position of the air is changed using the outlet position changing unit, the temperature setting signal changing unit changes the temperature setting signal currently output from the temperature setting unit.
Therefore, the temperature of the blown air changes in conjunction with the change of the blow position. If the change width of the set temperature signal is set appropriately, a desired air-conditioning state can be realized even when the blowing position is changed. Among these switches, the temperature control switch functions as temperature setting means, and outputs a set temperature signal corresponding to the set temperature. The outlet switch is used to change the air outlet position.
It functions as a stage , from which a mode signal is output. When the air outlet switch or the fan switch is operated while the air conditioning state is automatically controlled, the air conditioning state shifts to manual control from the time of the operation.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a control block diagram of the air conditioner for a vehicle according to the present invention, and FIG. 2 is an operation flowchart of the device shown in FIG.

[0008] The inside air sensor 10 is a sensor for detecting the temperature of the air in the vehicle compartment, and the outside air sensor 11 is a sensor for detecting the temperature of the air outside the vehicle compartment. The correction sensor 12 is a sensor provided to indirectly correct the detection signals from the inside air sensor 10 and the outside air sensor 11 according to the conditions where the vehicle is placed. A solar radiation sensor that detects the amount of solar radiation to the air, a suction temperature sensor that detects the temperature of the air immediately after passing through the evaporator, and a water temperature sensor that detects the temperature of the engine cooling water.

The control panel 13 is provided in the vehicle compartment, and is provided with various switches for the occupant to set the vehicle compartment to a desired air-conditioning state. Specifically, an air-conditioning switch for automatically controlling the air-conditioning state, a temperature control switch for setting the air-conditioning temperature in the passenger compartment, an air outlet switch for setting an air-conditioning air outlet and achieving a desired air-conditioning mode, Switches such as a REC switch for selecting an air intake position and a fan switch for adjusting the amount of air blown by a fan are provided. Among these switches, the temperature control switch functions as temperature setting means, and outputs a set temperature signal corresponding to the set temperature. Also, the outlet switch is empty
It corresponds to the air outlet position changing means, and from here, the air conditioning mode
The mode signal to be set is output. When the air outlet switch or the fan switch is operated while the air conditioning state is automatically controlled, the air conditioning state shifts to manual control from the time of the operation.

The control device 20 normally controls the passenger compartment of the occupant based on the signals output from the various sensors 10 to 12 described above and the various switches provided on the control panel 13. An operation for automatically controlling the air conditioning state as required is performed. If the operation of the outlet switch or the fan switch is confirmed in the state where the automatic control is being performed, the air conditioning state is manually controlled from that time. When the control device 20 shifts to manual control,
The passenger can freely set the air-conditioning state by using various switches provided on the control panel 13. That is, when the automatic control is performed, the control device 20 controls the fan motor 31 that blows the temperature-controlled air into the vehicle compartment according to the calculation result based on the signals from the various sensors 10 to 12 and the control panel 13. , The rotation position of the mix door actuator 32 for adjusting the opening of a mix door (not shown) to adjust the temperature of the temperature control wind, and the rotation position of the mode door actuator 33 for setting the blowing position of the temperature control wind. Automatically adjust each. On the other hand, when manual control is being performed, the control device 20 controls the rotation speed of the fan motor 31, that is, the amount of temperature-controlled air, the mix door actuator 32, according to the operation of various switches on the control panel 13 by the occupant. , Ie, the temperature of the regulated air, and the rotational position of the mode door actuator 33, ie, the air conditioning mode, are arbitrarily set without depending on the detection signals of the various sensors 10 to 12, respectively. When this manual control is to be performed by operating the air outlet switch, the control device 20 determines the pseudo set temperature from the set temperature signal output from the temperature control switch according to the type of the air conditioning mode that has been manually changed. The signal is calculated, and manual control based on the pseudo set temperature signal is performed. In this case, the control device 20 functions as a temperature setting signal changing unit.

The vehicle air conditioner of the present invention having the above configuration operates as follows. First, when the device starts operating, the control device 20 inputs the detection signals from the inside air sensor 10, the outside air sensor 11, and the correction sensor 12, respectively, and at the same time, controls the air conditioning state set by various switches of the control panel 13. Enter the setting conditions. The set conditions are, specifically, the set temperature in the vehicle interior by the temperature control switch, the set position of the inside air circulation or the outside air introduction by the REC switch, etc. (S1, S
2). Based on the detection signal and the setting conditions input in the above steps, the control device 20 controls the optimum rotation speed of the fan motor 31, the optimum rotation of the mix door actuator 32, and the optimum The rotational positions are calculated respectively, and these are driven based on the calculated values. As a result, a desired amount of temperature-controlled air at a desired temperature is blown out from a desired outlet, and an air-conditioning state as required by the occupant is realized (S3). The above automatic control is performed until a manual control command is output from the control panel 13 based on the detection signals from the various sensors 10 to 12 which are input one by one, that is, the air outlet switch or the fan switch is operated by the occupant. (S4).

When the control device 20 inputs a manual control command while the automatic control is being performed, it is determined whether the manual control command is caused by operating the outlet switch or by operating another switch. It is determined (S5). In this determination, when the manual control command is issued by the operation of the outlet switch, that is, when the air conditioning mode is changed, when the newly set air conditioning mode is the change to the vent mode, the occupant Desires to increase the cool feeling, the set temperature signal output from the temperature adjustment switch is forcibly set in a pseudo manner by lowering it twice. This setting is performed by calculation in the control device 20. That is, the control device 20 calculates a pseudo temperature setting signal that is two times lower than the temperature setting signal output from the temperature control switch, and the subsequent temperature adjustment of the temperature control air in the manual control is performed based on the pseudo temperature setting signal. Done. On the other hand, when the newly set air-conditioning mode is the heat mode, the occupant wants to increase the feeling of heating, so that the set temperature signal is set to be twice higher in a simulated manner. In the case of changing to the bi-level mode, such a pseudo setting is not performed, and the temperature setting signal output from the temperature control switch is set as it is (S6 to S8). The control device 20 controls the mixed door actuator 3 based on the pseudo temperature setting signal calculated as necessary in this way.
2 is set to a predetermined rotation position, and a temperature-controlled wind at a predetermined temperature is blown out from the selected outlet (S9).
The above manual control is continued until an automatic control command switch for returning to the automatic control, such as an air conditioner switch, is operated. By operating this switch, the detection signals of the various sensors and the control panel 13 are returned again. The automatic control is performed based on the set conditions from (S10).

The vehicle air conditioner according to the present invention is controlled as described above. For example, if the vent mode is selected by the air outlet switch when the air conditioning mode in automatic control is in the bi-level state, The air conditioning mode is set to the vent mode, and air at a temperature controlled by the pseudo set temperature signal two times lower than the set temperature signal from the temperature control switch instead of the set temperature signal from the vent outlet is set by the temperature control switch. It will be automatically emitted regardless of the change. Further, for example, if the setting to the heat mode is performed in a state where the manual control is performed, the air conditioning mode is changed to the heat mode, and from the foot outlet, instead of the set temperature signal by the temperature control switch, In this case, the air having the temperature controlled by the pseudo set temperature signal which is twice higher is automatically blown out regardless of the setting change of the temperature control switch. Therefore, control according to the occupant's intention is performed.

[0014]

As described above, according to the present invention, the set temperature is automatically changed in conjunction with the manual change of the air blowing position, so that the occupant requests the change in accordance with the change. An air-conditioning state will be realized.

[Brief description of the drawings]

FIG. 1 is a control block diagram of a vehicle air conditioner according to the present invention.

FIG. 2 is an operation flowchart of the apparatus shown in FIG. 1;

[Explanation of symbols]

10 Inside air sensor 11 Outside air sensor 12 Correction sensor 13 Control panel (temperature setting means, air blowing position)
Location changing means) 20 ... control unit (temperature setting signal changing means)

Claims (1)

(57) [Scope of request for utility model registration] The temperature of air blown into a vehicle interior and the temperature of the air based on detection signals from various sensors provided inside and outside the vehicle interior and a temperature setting signal from a temperature setting means for setting a temperature inside the vehicle interior. In an automotive air conditioner that automatically controls the position of the air outlet, the position of the air outlet where the position of the air outlet is manually changed
Changing means, and a temperature setting signal changing means for forcibly changing the temperature setting signal from the temperature setting means when the air blowing position is changed by the air blowing position changing means in conjunction with the change. An air conditioner for a vehicle, comprising: