JPS5897516A - Car air conditinoner control unit - Google Patents

Abstract

PURPOSE:To improve the operational efficiency of an air flow and temperature automtic control car air conditioner by forming a control section so that the main switch of the car can be turned on except in air flow control mode off and its memory can be set in automatic control mode. CONSTITUTION:The status signals of a control member 26, such as in suction and blowoff modes, etc. and the signals of the air flow mode select switches 14a- 14m of a control panel 12 are input to a digital computer 20. When a power supply switch 18 is set to ON and the air flow control modes 14a-14d are selected except in off mode, the control circuit 20 automatically set memory 24 in automatic control mode according to a preset program. Any control mode is not required to be specified individually by constructing the program of the control circuit 20. As a result, operational efficency can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention includes a car air conditioner control device 41 including a control device E1m that can automatically adjust the air volume, temperature, etc. of the car air conditioner.

A car air conditioner control device is provided with multiple control modes to control air volume, temperature, etc., and the control mode, for example, the air volume mode, is generally switched between 3 and 3 arbitrarily set by the operator.
4 manual adjustment modes (e.g. Lo-M--Hl);
The manual adjustment mode is divided into the automatic adjustment mode, which is automatically selected by an electric control device, etc. Once a certain mode is designated, that mode is normally continued unless another manual adjustment mode or automatic adjustment mode is designated. For example, in a conventional car air conditioner control system that uses a mechanical adjustment link to specify the control mode, V! The control mode once determined is maintained by a lever with a mechanical moderation mechanism.

However, when trying to start the car air conditioner after not riding the car for a long time or after stopping the car air conditioner, the control mode specified and maintained in # is not the best. No. For this reason,
In conventional car air conditioner control devices, a new control mode must be designated each time, which is cumbersome to operate. In addition, in the conventional device, the air volume adjustment lever itself serves as the operator of the start switch for the car air system, and the air volume is adjusted after turning on the main switch of the vehicle. However, the present invention has been made in view of the above-mentioned conventional problems.
The purpose is to provide car air with excellent operability...19
゛It is K to provide a jμ device.

In order to achieve the objectives of the present invention, the present invention includes a plurality of wind selection switches, a mode switch for selecting and specifying a mode of the car air conditioner, and a mode switch for selecting and specifying a mode of the car air conditioner. A storage memory that stores the specified mode of the switch, and a function according to the storage mode of this storage memory:
a control circuit for controlling the fan adjustment member, and the queen control circuit automatically stores the information in the storage memory when the main switch of the vehicle is turned on (when the air volume adjustment mode is selected other than the off mode). It is characterized by setting the mode.

Preferred embodiments of the present invention will be fully explained below based on the drawings.

FIG. 1 shows the overall configuration of a car air conditioner control device according to the present invention. In the figure, a KFi control panel 12 is provided in a vehicle interior 10 to select and specify the air volume control mode of the car air conditioner. , control panel 1
2 has a group of switches 14 for selection. In this embodiment, the mode selection switch group 14 includes an air volume mode selection switch group and other switch groups.

The air volume mode selection switch 141L selects suction, blowout, and automatic control of each control, and stops the operation of the air conditioner. The yy switch 14b operates with the air flow rate fixed at LO (low).

Switch 14C and H1 switch 1 to fix Hl (high)
4 (consisting of L. The other switch groups are PRf3 switches that fix the suction mode to outside air) 4e,
RXC switch 14f that fixes the inside air.

Direct/C switch 14g to select dehumidifying room temperature control / jlicONOVY switch 14 to select power-saving room temperature control
h, 711 switch 1 that fixes the blowout mode to TINT
41. B/L switch 14j fixed at pie level
, HEA that fixes the foot blowout? A room temperature setting device consisting of the switch 14, a DIF switch lag fixed to the defroster outlet, an UP switch that raises or lowers the set room temperature in 0.5°C increments, a main switch (DOW), and a display that digitally displays the set room temperature. 1411 is also configured.

9. In the control panel 12, each of the above switches F14
A group of switch lamps (not shown) is provided corresponding to the 14 sets.
The ON operating state of &~1411m can be known.

The air volume mode selection switch group 14 & ~ Only one switch lamp lights up. Similarly KIFR8 switch 14 and RIC switch 14 f t /C 4yf14g and lcO]
OMYS4? 14h-'sol, -(Vl)i'r,
B/L, BRAT, DICF switches 141 to 14
7 are in groups, and when a mode other than oyy mode is selected, only one switch rung in each group lights up. Furthermore, when the OFF mode is selected, all lamps and set room temperature display do not light up.

Next, a control circuit 20 is connected to the terminal of the battery 16 via a power switch 18 that operates in conjunction with an ignition switch (not shown), and at this time, power is supplied to the control circuit 20 via a constant voltage circuit 22. will be carried out. This control circuit 20 includes a storage memory 24 that stores the specified mode of each mode switch 14&~14m described above.
The adjustment member 26 of the car air conditioner is controlled according to the storage mode No. 4. That is, the control circuit 20 inputs signals from the various sensor groups 28 and the control panel 12 according to a preset control program, not from a digital computer, and controls the blower motor and the suction port switching damper through the actuator group SO.

The outlet switching damper and the adjusting members 26 of the refrigeration compressor are operated. In addition, the control circuit 20 has an adjustment member z6 on the control panel that controls the suction mode, blowout mode, etc. at that time.
The control panel IZ sends a signal to notify the status of the control panel IZ.
Activate the lamp details provided with f/C.

FIG. 2 and FIG. 1/Ii3 show the arithmetic processing process of the control circuit 2o. When the power supply is connected, the control circuit 2o sequentially starts the arithmetic processing from the start step 100 of the control program. The program then proceeds to step 102 in which the signal from the power switch 18 is read, and in the next step 104 it is determined whether the ignition switch is turned on.

A feature of the present invention is that when the main switch (ignition switch) of the vehicle is turned on and the air volume adjustment mode is selected other than off mode, the automatic adjustment mode of the air volume adjustment mode is automatically set in the storage memory. It is to be. That is, when the ignition switch is off in step 104, the process returns to step lO2, and when the ignition switch is on, the process proceeds to step 106 where the next off mode signal is read, and then to the next step 10.
B determines whether the mode is off. Then, when off mode is selected, go to step 110 and actuator 1llp3.
Step 112
The room temperature setting signal, each switch signal, and the sensor group 28 signal are read from the control panel 12. On the other hand, when a mode other than the off mode is selected, the process advances to step 114 and the controller 1) Q -k * k 8 / W signal memory (temporary memory 24 built into the digital computer)
) is used as this memory, and after setting the MU'J"O switch memory to 111, the same process as above is performed in step 112. This process Fi1 control 0-A
/ Regardless of the operation of the handle 12, this is automatically performed if the air volume adjustment mode is selected to a mode other than off mode when the ignition switch is turned on.

Therefore, with the cover of the present invention, there is no need to re-designate a new control mode each time when a control mode different from the fixed mode is desired, even if the control mode is designated and held before the car air conditioner is activated, as in conventional devices. The intransitive mode can be automatically set in the storage memory 24 by an extremely simple operation of turning on a switch.

In addition, the four switch switches are set to 7f'f-11j.

When the air volume joint mode is selected as the off mode, the automatic adjustment mode is not set, so compared to the calculation process that immediately sets the automatic adjustment mode when the ignition switch is turned on. Operation can be simplified.

In other words, if the car air conditioner is not used seasonally, the off mode will be selected before the ignition switch is turned on, but the automatic adjustment mode is set immediately when the ignition switch is turned on. In this case, the automatic adjustment mode is set immediately even if the ignition switch 11 is turned on. Therefore, whenever the ignition switch is turned on, the KO switch 14b is activated.
, and the driver is forced to perform a cumbersome operation when starting driving. In contrast, according to the present invention, when the air volume adjustment mode is selected other than the off mode when the ignition switch is turned on, the memory memo 9
Since the air volume control mode is configured to automatically set the automatic setting mode of the air volume adjustment mode in the air volume control mode 24, the above-mentioned problem 9 can be avoided and the operation can be simplified.

Next, each signal applied to the control circuit 20 is stored at a predetermined address in a temporary storage memory (RAM) 24. Among them, step 116 is a step for determining whether the ignition switch has been turned from on to off. If no, go to step 11g; if yes, go to step 12G. Switch 14 beLO switch 14c, Hi switch 14 (L
When one switch in the set is turned on, only the switch memory corresponding to that switch is set to "1"K, and the remaining switch memories are reset to 101.

Further, in a set of the R8 switch 14 and the RIC switch 14f, when one of them is turned on, the corresponding switch memory is set to @11, and the others are reset to @oIK. Mae, Mu/C switch 14g and IcOI
OM! Pair with switch 14h, TIN 4 tsufla
i, B/'Lx yf14j, 11m Switch 14
In, DI! The same applies to the set of F switches 14/.

Then, in step 1118, it is determined whether or not the ignition switch is in the closed state, and when the ignition switch is opened, in step 118,
In addition to fixing the target value of the room temperature that was previously set, the display on the actuator group 3G and the control panel 12 (
All setting displays and switch lamps are stopped, and the process advances to rounding step 102, in which the control state is waited.

In step 120, it is determined whether the tbOFF switch memory is in the off mode or not, and whether the tbOFF switch memory is 11@ or I □ I. When in the off mode, the process goes to step 11G to stop the display of the actuator group 30 and control panel 12, and input from the sensor group 28. A process is performed to clear the values and memories other than the 0FIF switch 141), and the process returns to step 112.

Therefore, as described above, if the air volume adjustment mode is set to off mode when the ignition switch is turned on, the steps 112 → step 115 → step 120
It is understood that since the arithmetic processing is performed in the order of -> step 110 -> step 112, no setting of the automatic adjustment mode is performed. If the mode is other than the off mode in step 120, the process proceeds to the second step 122, where it is determined whether the blower is in the LO fixed mode. If it is the Lo fixed mode, the process goes to step 124; otherwise, the processor H1
The process advances to step 126 in which it is determined whether or not the fixed mode is set.

In step 124, the air volume instruction given to the actuator group 3o is fixed to Lo, and the LO in the control panel 12 is
Turn on the switch lamp and turn on the other Oνl, MU'rO,H
Step 1
The process moves on to step 28.

In step 12@, it is determined whether the blower is in the H1 fixed mode or not. Then, in step 132, the air volume is automatically controlled, and the process proceeds to step 121. In addition, step 1
At 32.

Based on the input signal from the sensor group 21, the air volume is automatically determined by a known method and an instruction thereof is given to the actuator group 30. On the other hand, if the camera is in the H1 fixed mode, step 1
At step 84, an air volume instruction to be given to the actuator group 30 is given to Hl.
(L large), turn on the Bi switch lamp on the control panel 12, and turn it off, Mu UTO, Lo
turn off the switch panel.

Generally understood from the above explanation, if the air volume adjustment mode is selected other than off mode when the ignition switch is turned on, the Uτ0 switch/ν memory is set in advance (step l14), and then the LO fixed switch 14c is set. , H1 fixed switch 14 (i is not turned on @夛 (step 122゜126)) The air volume is automatically adjusted (1
32). Thus, when getting into the vehicle, it is not necessary to operate the Lo mode switch 14a or the H1 mode switch 14 (L) in addition to the operation of turning on the ignition switch.Furthermore, when the ignition switch is turned on, the air volume adjustment mode is set to the off mode. When selected, the air volume is not automatically adjusted as described above, so it is not necessary to turn on the OFν switch 14b after turning on the ignition switch.

Next, 1 step 1211.136,138,140°1
42 performs the process of switching the intake port, but first, step 128
Then, it is determined whether the PR8 mode is selected and whether outside air introduction is selected. If yes, the process goes to step 136. If no, the next step is to determine whether the next R/C mode and outside air introduction is selected. Proceed to 138. If it is the 1MC mode, the process proceeds to step 140, and if not, the process proceeds to step 142, assuming that the suction port is in automatic control mode. In steps 136, 140*142, predetermined suction port fixing processing, automatic processing, and turning on/off processing of the RMC switch lamp and FRB switch lamp are performed. The automatic control mode in step 142 is performed using a known automatic control program.

In the next steps 144 to 152, a known method U' is used to automatically select whether automatic room temperature control is performed in dehumidification mode, the compressor is stopped and power saving mode is performed, or both are automatically selected.
The M/C switch memory, Ic0, determines whether TO mode is to be used.
NOV! A decision is made according to the value in the switch memory, and an instruction is given to the actuator group 30 according to the decision. At the same time, switch lamp 7c of control panel 12 and IC
Instructs the ONOMY switch rung to turn on and off.

Next, in steps 154 to 170, 4611 of the air outlet switching is performed.
, but here step IS4゜15g1 1
629]@4i[j>1. nte, V]1lF4%-
It is determined by the switch memory whether mode, B/L mode, Hl whip mode, or DMv mode is specified, and if any mode is specified and "rh", step 1g 6-110s 164° At 168, the actuator details are adjusted to obtain the specified nine blowout modes.
K gives instructions. This and ゛ and 4, 711th block, B
/ Instructs the control panel 12 to turn on and off the L, Hl whip, and Dll whip lamps.

If none of the nine blowout modes mentioned above is specified, then
It is assumed that the current mode is 0, and in step 17G, the optimum blowing mode is determined according to the input signals from the sensor group 28 using a known control method.

According to the results, instructions are given to actuator group 30 and control panel 12.

Finally, in step 172, other known controls related to the car air conditioner are executed, and then the control circuit 20 repeats the program processing from step 112 described above.

As a result of completely repeating the above program processing, if the ignition switch is turned on and the dying air volume adjustment mode is selected other than off mode, the control panel 12
The car air conditioner control device can operate without any operation.
When set to 0 mode, suction, blowout, air volume, and room temperature control are automatically controlled.
/W lamp display indicates the operating state at that time to the occupants. Then, in this state, operate the control panel 12 to select the new 9 mode, and if 9 is specified, the 9 mode is fixed and the %M U〒0 switch lamp is turned off.

One embodiment of the present invention has been described above, and the present invention can also be implemented with the following modifications.

(1) Muu? The O switch 141 is used for each adjustment mode, for example, a prowam σte0 switch, rIk included lo switching mode UTO switch, air blowing mode switching mode UTO switch, room temperature control mode UTO switch, and room temperature control mode UTO switch. It is also possible to provide a separate dedicated switch like the O switch.

(The memory that stores the state of the dynamic mode switch and L?
Temporary memory (RAM) in the microcomputer 24
Additional external storage memory may also be used.

(3) In addition to the microcomputer, a general electronic circuit may be used in combination to perform similar control.

As explained above, according to the present invention, when the air volume adjustment mode is selected other than the off mode when the main switch of the vehicle is turned on, the automatic adjustment mode of the air volume adjustment mode is automatically set in the storage memory. Therefore, it is possible to provide a nine-car air conditioner control device with excellent operability.

[Brief explanation of drawings]

FIG. 1 shows a preferred embodiment of the car air conditioner control device according to the present invention.
I! FIG. 2 is a diagram showing the overall configuration of the embodiment; FIG. 14.-Mode selection switch group, 14 &---m U〒Ox switch, 14 b, -o y y switch. 20...Control circuit, 24...Storage memory, Fig. 2, Fig. 3

Claims (1)

[Claims] (1) A mode switch that includes a plurality of air volume mode selection switches and selects and specifies the air volume adjustment mode of the car air conditioner, a memory memory that stores the designated mode of this mode switch, and a member that adjusts the car air conditioner according to the storage mode of the storage memory. and a control circuit for controlling the memory memo 9 in the pigeon coop whose air volume adjustment mode is selected to be other than the off mode when the main switch of the vehicle is turned on.
A car air conditioner control device characterized by automatically setting an automatic adjustment mode.