JPS6220710A - Automotive air conditioner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications The present invention relates to an air conditioner for an automobile.

Conventional technology In recent years, when the temperature setting device is set to MAX-COOL (maximum cooling), the air mix damper is set to FULL-COOL, the maximum cooling state, and the fan motor is controlled to rotate at high speed. It has become.

Conventional air conditioners for automobiles of this type are, for example,
There is one as shown in Japanese Patent No.-135305.

FIG. 3 is a block diagram of a conventional automobile air conditioner. M
The AX/COOL determination unit 1 determines whether one temperature setting device 2 is at MAX.
- Outputs the WAX/C00L signal when set to COOL. The air mix damper control section 3 is a MAX-CO
Based on the OL signal and information from the temperature setting device 1 and air mix damper position detection device 4, a control signal for the air mix damper is output. For example, when set to WAX-C00L, control is performed such as setting the air mix damper to FULL-COOL. The drive section 6 outputs a drive signal to the actuator 6 based on the control signal.

The fan motor control i11 section 7 includes the fan switch 8 and M
Based on information such as the AX-COOL signal, the fan motor voltage is calculated and the voltage is supplied to the fan motor 9. For example, when set to MAX-COOL, control such as rotating the fan motor 9 at high speed is performed.

Problems to be Solved by the Invention However, in the above configuration, MAX・C00L
For example, when the air mix damper is set to
Controls such as setting the air conditioner to ULL-COOL and rotating the fan motor at high speed are performed not only during cooling but also during heating.

Conventionally, these controls have been performed in consideration of cooling, but are not necessary during heating, and if performed during heating, the feeling will be poor. Furthermore, if the setting is fixed at MAX/COOL due to a malfunction of the temperature setting device, etc., a situation may occur in which sufficient heating is not performed in the harsh winter.

Therefore, the present invention provides an air conditioner for an automobile that provides comfortable air conditioning throughout the year by not performing MAX/COOL control during heating.

Means for Solving the Problems In order to solve the above-mentioned problems, an air conditioner for an automobile according to the present invention includes an air mix damper that adjusts the blowout temperature in the vehicle interior, an actuator that drives the air mix damper, and an air conditioner that controls the air. an air mix damper position detection device that detects the position of the mix damper; a temperature setting device; an air conditioner switch that operates the air conditioner system; a 77 motor that blows air into the vehicle interior; a fan switch that controls the 77 motor; Setting device setting is MAX-CO
If it is OL, MAX- outputs the MAX/Coon signal.
a COOL determination section, an air mix damper control section that outputs a control signal for the air mix damper based on the MAX/COOL signal, information from the air mix damper position detection device, and the temperature setting device; a driving section that outputs a driving signal, and the M
The control device includes a fan motor control unit that outputs a control signal for the fan motor based on the AX-COOL signal and the information from the fan switch, and the control device is configured to operate the air conditioner system based on the information from the air conditioner switch. When there is no MAX-COOL signal, the MAX-C stops outputting the MAX-COOL signal to both or either of the air mix damper control section and the fan motor control section.
A 00L control section is provided.

Effects The present invention uses the above-described configuration to determine whether it is cooling or heating using the air conditioner switch, and to set the temperature to MAX during heating.
By not controlling COOL, a comfortable feeling can be obtained throughout the year.

Example Hereinafter, an automotive air conditioner according to an example of the present invention will be described.
This will be explained with reference to the drawings.

FIG. 1 is a configuration diagram showing one embodiment of the present invention, and FIG.
The same parts as in the figures are given the same symbols, and the explanation thereof will be omitted.

The difference in Fig. 1 from Fig. 3 is that MAX/C00L
The MAX/CooL signal output from the determination unit 1 is MAX
- It is being input to the COOL control unit 10.

FIG. 2 is a flowchart of the control of the MAX-COOL control unit 10. From MAX/COOL judgment unit 1 to MAX-
The COOL signal is output, and then the air fan switch 1
1 is ON, that is, the MAX-COOL signal is output to the air mix damper control section 3 and the air mix damper control section 71 only during cooling.

Effects of the Invention As described above, the present invention allows the control device to control the air conditioner by controlling the information of the air conditioner switch when the air conditioner system is not operating.
By providing a WAX/C00L control unit that stops outputting the MAX-COOL signal to the air mix damper control unit and/or the fan motor control unit, cooling is not possible even when heating is requested. - You can get a comfortable feeling throughout the year.

[Brief explanation of the drawing]

Fig. 1 is a control circuit diagram of an automotive air conditioner showing one embodiment of the present invention, and Fig. 2 is a MAX-COO diagram in the same control circuit.
The flowchart shown in FIG. 3 showing the control contents of the L control section corresponds to the conventional example shown in FIG. 1...MAX-COOL judgment section, 2...
・Temperature setting device, a... Air mix damper control unit, 4... Air mix damper position detection device, 5... Drive unit, 6... Actuator , 7...7 Ammonitor control section, a...
・Fan switch, 9...Fan motor, 10
...MAX-C00L control section, 11...
・Air conditioner switch. Name of agent: Patent attorney Toshio Nakao and 1 other person7-
MAxCOOL 4+1 Constant part 2- Humidity setting charge 3- Air/socket damper IlI control part 6-7 Kunayuator 7-'F7 motor III part 3---17 switch If-11 Air conditioner/socket damper IlI control part 2

Claims (1)

[Claims] An air mix damper that adjusts the blowout temperature in the vehicle interior, an actuator that drives the air mix damper, an air mix damper position detection device that detects the position of the air mix damper, a temperature setting device, and an air conditioner system that operates. The settings of the air conditioner switch, the fan motor that blows air into the vehicle interior, the fan switch that controls the fan motor, and the temperature setting device are MAX/COOL.
If so, MAX/C outputs the MAX/COOL signal.
an OOL determination section; an air mix damper control section that outputs a control signal for the air mix damper based on the MAX/COOL signal, information from the air mix damper position detection device and the concentration setting device; a drive unit that outputs a drive signal; and the MA
The control device includes a fan motor control unit that outputs a control signal for the fan motor based on the X-COOL signal and information from the fan switch, and the control device includes a control device that outputs a control signal for the fan motor based on the information from the air conditioner switch, and the air conditioner system is not operating according to the information from the air conditioner switch. Sometimes, the MAX/COOL signal stops outputting the MAX/COOL signal to the air mix damper control section and/or the fan motor control section.
Automotive air conditioner equipped with an OL control section.