JPH0728967Y2 - Automotive air conditioner - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial field of application) The present invention provides a priority order set when a plurality of switches that output command signals related to air conditioning are operated at the same time. The present invention relates to an air conditioner for a vehicle having a function of determining which switch should be activated based on the above.

(Problems to be Solved by Conventional Techniques and Inventions) Generally, air conditioners for automobiles are provided with, for example, an actual Kaihei 1-11
As disclosed in Japanese Patent No. 4415, there is provided a control panel for arbitrarily setting the air conditioning state in the vehicle compartment. This control panel is equipped with an AUTO switch for fully automatic air conditioning control, a temperature control switch for setting the desired temperature in the passenger compartment, and a mode switch for setting the air conditioning mode in the passenger compartment. There is.

In order to set the air-conditioned state of the vehicle interior to a desired state, an occupant must operate these switches. In this switch operation, in the unlikely event that two switches are operated at the same time, the switch that is normally operated earlier to prevent loss of control (microscopically, the exact same operation timing It is impossible for the switch to be operated with.) Is enabled.

However, conventionally, when a plurality of switches are simultaneously operated as described above, the switch operated first is made effective to control the air conditioning state.
The following problems may occur.

That is, for example, when a mischief such as a child presses the mode switch DEE and the REC switch that controls the intake of the inside and outside air at the same time, and when the pressing order is REC-DEF, REC has priority, Such control may not be preferable depending on the air conditioning situation.

The present invention has been made in order to eliminate the above-mentioned conventional problems, and when a plurality of switches that output command signals related to air conditioning are operated at the same time, the set priority order is set. An object of the present invention is to provide a vehicle air conditioner having a function of determining which switch should be activated based on the above.

[Structure of the Invention] (Means for Solving the Problems) The present invention for achieving the above-mentioned object includes a plurality of switches that output a command signal related to vehicle interior air conditioning and contact information of the plurality of switches. Selection means for selecting contact information of a switch to be taken in based on a predetermined priority when two or more switches simultaneously output the same or different contact information of the same mode, and the plurality of switches. And the control means for controlling the air-conditioning state in the vehicle interior based on the contact information of the above or the contact information selected by the selecting means.

(Operation) The automotive air conditioner of the present invention configured as described above operates as follows.

When a plurality of switches are simultaneously operated, the selecting means selects a switch to be incorporated based on a predetermined priority order. This priority is determined in consideration of the safety of air conditioning control associated with simultaneous operation. Therefore, when multiple switches are operated at the same time, it does not matter which switch is operated first, but it is adopted based on the priority of which switch is currently operated at the same time. The selection of the switch to be performed is performed.

The contact information from the switch selected in this way is input to the control means, and the control means air-conditions the vehicle interior based on the contact information from this switch or the contact information of a plurality of switches when simultaneous operation is not performed. Control the state.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a schematic configuration diagram of a control system of an automobile air conditioner according to the present invention, and FIG. 2 is a flow chart of contact information input processing in the control device shown in FIG.

Control panel 10 that constitutes an air conditioner for automobiles
Is provided in the vehicle compartment. This control panel 10 is operated when air conditioning control is to be performed fully automatically.
As an AUTO switch 12, as a mode switch, a vent switch 13 that fixes the air conditioning mode to vent, a bi-level switch 14 that fixes the air conditioning mode to bilevel, a foot switch 15 that fixes the air conditioning mode to foot, and an air conditioning mode. A differential switch 16 fixed to the differential is provided. Further, a REC switch 17 for controlling the position of the intake door to set the inside air circulation or the outside air introduction is also provided. The operating state of these switches can be confirmed by lighting an indicator provided at the bottom of each switch. In addition, the A / C switch that operates the compressor on condition that the fan motor is operating 1
An 8 is provided below these switches. The operating state of this switch can be confirmed by an indicator built into the switch. Furthermore, a balance control lever 19 for setting the temperature inside the vehicle compartment is also provided below these switches. On the right side of the control panel 10, a fan switch 20 that sets the rotation speed of the fan motor is provided. Among the above switches, the AUTO switch 12, the air conditioning mode switches 13 to 16 for setting the air conditioning mode, the REC switch 17 and the A / C switch 18
Is a so-called tact switch, which is turned on or off only when it is pressed.

All contact information from these switches described above is input to the control device 25. The controller 25 is a fan switch 20.
When it is controlled at the set position or in full auto, the applied voltage of the fan motor 30 is controlled based on the calculated air volume to control the rotation speed of the fan 31. Further, the intake door actuator 33 is driven by turning the REC switch 17 on and off, and the intake door 34 is rotated to set inside air circulation or outside air introduction. Specifically, when the REC switch 17 is turned on, the indicator is turned on to set the inside air circulation, and when turned off, the indicator is turned off to set the outside air introduction. Further, the control device 25 operates the mix door actuator 36 to set the mix door 37 to the optimum position based on the calculation result based on the temperature set by the balance control lever 19. Then, the mode door actuator 39 is operated based on the setting position of the mix door 37 or the setting signal of the air conditioning mode switches 13 to 16 to set the predetermined mode door 40 to the air conditioning mode.

The control device 25 has a look-up table in which the priorities of all the switches and levers provided in the control panel 10 are stored. This priority is set so that the safety of the air conditioning can be ensured even when a plurality of switches and the like described above are simultaneously operated. For example, to give an example of priority order, diff switch
16> Fan switch 20> AUTO switch 12> Air conditioning mode switches 13 to 15> Temp control lever 19> If there is an OFF switch that performs air conditioning by only part of the control of the automobile air conditioner, OFF switch> REC switch 1
In order of 7. When set to such a priority, the child mischiefs the fan switch 20 and REC switch 1
When 7 and the diff switch 16 are operated almost simultaneously,
The control device 25 determines that the operation of only the differential switch 16 is valid based on the set priority regardless of the operation start timing of those switches.
Is operated to set the air conditioning mode to the differential mode. The order of priority is not limited to the above, and for example,
Differential switch 16> Fan switch 20 = AUTO switch 12 =
Air conditioning mode switch 13 to 15> Off switch = temp control lever 19> REC switch 17 or diff switch 1
6> Fan switch 20 = AUTO switch 12 = Air conditioning mode switch 13-15 = Off switch = Temp control lever 19> REC switch 17 and other modes are also conceivable. It should be noted that, in the above-mentioned priorities set in the same order, the switch operated first is prioritized as usual.

The flowchart of the contact information input process in the control device 25 is as shown in FIG.

The control device 25 inputs contact information of the switches and the like of the control panel 10 and judges whether or not there are simultaneously pressed switches and the like (steps 1 and 2). Although the above processing is not shown in the flowchart, the processing is performed at a high speed, for example, once every 1 ms. If no switch is pressed at the same time, air conditioning control is performed based on the contact information of only the pressed switch (step 3). On the other hand, if there is a switch or the like that is pressed simultaneously, the look-up table in which the above-mentioned priority order is stored is looked up and contact information considering the priority order is output. For example, when the priorities are set as described above, when the DEF switch 16 and the REC switch 17 are simultaneously pressed, the air conditioning mode is preferentially set to the differential mode. Therefore, the safety of the air conditioning mode due to an erroneous operation is ensured (steps 4 and 5).

[Effects of the Invention] As is clear from the above description, according to the present invention, the priority order of the switches to be adopted is set when a plurality of switches or the like are simultaneously operated, so that the air conditioning control due to an erroneous operation or the like is performed. The safety of can be maintained.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a control system of an automobile air conditioner according to the present invention, and FIG. 2 is a flow chart of contact information input processing in the control device shown in FIG. 10 …… Control panel, 12 …… AUTO switch (switch), 13 to 15 …… Air conditioning mode switch (switch),
16 ... Differential switch (switch), 17 ... REC switch (switch), 18 ... A / C switch (switch), 19 ...
… Temp control lever (switch) 20 …… Fan switch (switch), 25 …… Control device (selection means, control means).

Claims (1)

[Scope of utility model registration request] 1. A plurality of switches (12 to 20) that output a command signal related to vehicle interior air conditioning, and two or more switches of contact information of the plurality of switches (12 to 20) that are turned on or off at the same time. Selection means (25) for selecting contact information of a switch to be incorporated based on a predetermined priority when contact information of the same mode is output, and contacts of the plurality of switches (12 to 20) An air conditioner for a vehicle, comprising: a control unit (25 to 40) for controlling an air-conditioning state in a vehicle compartment based on information or contact information selected by the selection unit (25).