JPS621614A - Air-conditioner control device for vehicle - Google Patents

Abstract

PURPOSE:To appropriately indicate the data of temperatures and the data of distribution, by providing an indicating means for indicating the temperature data and the distribution date so that the presence of indication of the distribution data is changed over in accordance with the change-over between supply passes. CONSTITUTION:There are provided a center indicating area 10 for a desired control temperature, and upper and lower indicating areas 10B, 10C for the temperatures of upper and lower spaces in the passenger's compartment on the display surface of an indicator 10 in a controller. Further, in the controller there are provided switches 11A, 11B for elevating the desired control temperature, switches 12A, 12B for elevating the difference between the temperatures which are indicated on the upper and lower indicating areas 10B, 10C, and so forth. Further, with a reference value as a border line at which the upper and lower blow-out air volumes VFACE, VFOOT are equal together, during, for example, setting of upper and lower blow-out modes, if VFACE> VFOOT, the desired control temperature is indicated on the center indicating area 10A, and is made to correspond to the upper blow-out control, and a desired temperature difference showing what temperature degrees of the lower desired temperature is raised from the upper desired temperature, is indicated on the lower indicating area.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention supplies temperature-controlled air into a vehicle interior to change the air temperature within the vehicle interior, and also changes the supply route of the conditioned air into the vehicle interior. The present invention relates to a car air conditioner control device that can be changed in at least two stages.

(Prior Art) Vehicles, especially automobiles, are equipped with a thermometer that displays the air temperature inside the vehicle, as disclosed in, for example, Japanese Patent Laid-Open No. 57-15013.
It is known from the publication no. Furthermore, displaying the temperature distribution inside the vehicle is known from Nippondenso Publication Technical Bulletin No. 27-017.

(Problems to be Solved by the Invention) In the car air conditioner control device mentioned at the beginning, by changing the supply route of the conditioned air, for example, air with different temperatures is supplied to the upper and lower parts of the vehicle interior space. Therefore, the temperature distribution inside the vehicle is actively created. When a temperature distribution difference is formed in this way,
It is desirable to display this situation to the occupants, but if different air supply paths form different temperature distributions or no temperature distribution differences are formed, the above-mentioned display of temperature distribution differences is meaningless.

Therefore, an object of the present invention is to provide a car air conditioner control device that can appropriately display temperature information and distribution information regarding the air temperature in a vehicle interior depending on the air conditioning state.

(Means for Solving the Problems) The present invention provides a display capable of displaying temperature information and distribution information in a car air conditioner control device having an automatic temperature control function and an air supply path changing function as described at the beginning. The present invention is characterized by comprising means for switching whether or not to display distribution information in accordance with changes in the supply route.

(Operation and Effect) According to the present invention, the display means displays temperature information related to the air temperature in the vehicle interior, and also displays temperature information related to the temperature distribution according to the change of the air supply route in cooperation with the switching means. In order to display the information, distribution information corresponding to the selected supply route is appropriately displayed.

Furthermore, the occupant can also recognize the state of the air supply route from the existence of the distribution information.

(Embodiment) Figures 1 to 6 show an embodiment of the present invention, in which Figure 1 is a layout diagram of the operating surface of the operating device including the display, and Figures 2 and 3 are displays of the display. As an example, FIG. 4 shows a layout of air conditioning functional elements, FIG. 5 shows an electric control system, and FIG. 6 shows a control program.

In FIG. 1, the display surface of the display device 10 includes a central display area 10A that shows the representative temperature of the air inside the vehicle as the target control temperature, an upper display area 10B for the representative temperature of the upper layer temperature in the vehicle interior, and an upper display area 10B for the representative temperature of the lower layer inside the vehicle interior. A lower display area 10C is provided, and the required display area is selected depending on the blowout mode. Switches 11A and IIB are used to raise and lower the target control temperature displayed in the central display area/IOA, and switches 12A and 1.
28 is for raising and lowering the temperature difference displayed in the upper or lower display area.

The defroster switch 13 is used to defog the window glass, the maximum mode switch 14 is used to rapidly raise and lower the car temperature, such as maximum cooling or maximum heating, and the economy switch 1
Reference numeral 5 is used to forcibly stop the cooling compressor, and stop switch 16 is used to stop the function of the air conditioner.

The air conditioner shown in FIG. 4 is operated in conjunction with the operating device shown in FIG. 1 and the electric control system shown in FIG. 5. In FIG. 4, an evaporator 18 and a heater 19 are arranged in the ventilation duct 17 as a heat exchanger. In order to change the ventilation route, inside and outside air door 20, air volume distribution door 21, MAX
A door 22 and a mode door 23 are provided. The air introduced into the duct 17 from the inside air intake 25 and/or the outside air intake 26 by the action of the blower morph 24 is cooled by the evaporator lake 18 if necessary, and the air is 2 aisle aisle 2
9 and is supplied to the vehicle interior from the defroster outlet 30, the upper discharge outlet 31, and the lower discharge outlet 32.

The inside/outside air door 20 is operated under the command of the electric control circuit 33 by an actuator shown at 20A in FIG. select.

The air volume distribution door 21 selects the first passage blocking point A, the second passage blocking point BB, the exact middle C1, and any other intermediate points B and D by the actuator 21A in FIG.

The MAX door 22 and mode door 23 also select the FJ point by actuators 22A and 23A, respectively.

The heater 1
9 can be heated in common, but the heating effect can be adjusted by each air mix (A/M) door 34.35, and the A/M door 34.35 is
4A and 35A wholesale Igoichi ■.

In FIG. 5, 24A is a blower motor drive circuit;
19A is a heating medium opening/closing valve for the heater, and 18A is a refrigerating cycle operating clutch for the evaporator, which are controlled by an electric control circuit 33.

The circuit 33 controls the operating state of the air conditioner via each actuator according to a control program outlined in FIG. As control inputs of the circuit 33, an air temperature sensor 36 for the upper part of the vehicle interior, an air temperature sensor 37 for the lower part of the passenger compartment, an outside air temperature sensor 40, a cooling capacity measurement sensor 41 for the evaporator, a position feedback sensor 42 for the A/M door. 4
3. A signal from a position feedback sensor 44 for the air volume distribution door is provided.

In the above configuration, the mode of blowing air is determined by the position of the air volume distribution door 2. At point A, the blowing mode is lower blowing, and at point E, the blowing mode is upper blowing.

On the other hand, between point A and point E, there is both upper and lower blowout mode.
At this time, the display 10 of the operating device 14 is effectively utilized.

For example, the upper air volume (FAc) and the lower air volume (V
V F
ACl > V When FOOTO (D), the display is in the center display area as shown in Figure 2! The control target temperature is displayed on the OA and made to correspond to the upper blow control, and the lower display area 10C displays a target temperature difference indicating how many times the lower target temperature is desired to be raised relative to the upper temperature.

Conversely, when V WOOT > V FACE (B),
As shown in FIG. 3, the control target temperature corresponding to the lower temperature is displayed in the central display area 10A, and the target temperature difference indicating how many times the upper temperature should be lowered relative to the lower temperature in the upper display area 12B is displayed. Further, in the upper single blow mode (E) and the lower single blow mode (A), both the upper and lower display areas are turned off, and each target temperature is displayed only in the central display area 10A.

Each air distributed by the air volume distribution door 21 is
The temperature is controlled separately by two A/M doors 34, 35, and each exits to the air outlet. At this time, during normal temperature adjustment, the MAX door 22 is in the G position, and the mode door 23 is in the G position.
should be set to I, but if the defrost motor switch 16 is selected by the operation device, the MAX door 23 is set to H.
The mode door 23 is driven to three points to defog the car window. On the other hand, when the MAX switch 14 is selected, the air volume distribution door 21 becomes 0 point, and at maximum cooling, the MAX door 2
2 is the H point and the mode door 23 is the 1 point, and at maximum heating, the MAX door 22 is the F point and the mode door 23 is the 1 point, ensuring the maximum air volume. In addition, at this time, A/M door 34.3
5 are in the same position (vertically symmetrical across the diaphragm plate 27), and wind of the same temperature can be obtained above and below the diaphragm plate.

Regarding each of the above doors, excluding A/M door 34.35,
Some or all of them can also be activated manually.

In carrying out the present invention, the display format of temperature information and distribution information can be modified and changed in various ways.
46 and switches 47A, 47B.
, 48A, and 48B. In relation to FIG. 4, when the air volume distribution door 21 is in positions other than A and E, both the upper and lower indicators 45 and 46 are lit;
Each can be set. On the other hand, when the air volume distribution door 21 is at point A (or E), or when the air volume distribution is at point 0 due to MAX switch selection and the MAX door 22 is at point H (or F), only the upper display 45 (or FooT only)
will be displayed to notify you that you are in single callout mode.

FIG. 8 shows a type in which the average room temperature inside the vehicle and the upper-lower temperature difference are set.

[Brief explanation of drawings]

1 to 6 show one embodiment of the present invention, FIG. 1 is a layout diagram of the operation surface of the operating device including the display, and FIGS. 2 and 3 are explanations showing the display mode of the display. 4 is a schematic cross-sectional view showing the arrangement of functional elements of the air conditioner, FIG. 5 is a block diagram of electrical control, and FIG. 6 is a flowchart showing a control program. FIGS. 7 and 8 are explanatory diagrams showing modified examples of the display device. 10...Display device, IOA~IOC...Display area, 21
...Air volume distribution door, 22...MAX door, 23...
・Modo Door, 34.35...Airmi Tsukstore. Representative Patent Attorney Takashi Okabe Figure 1 Figure 2 Figure 3 Figure 4 Figure 7 Figure 8 Procedural amendment (written January 1, 1985 2 Name of the invention Car air conditioner control device 3 Amended) Relationship with Hanyu Patent applicant 1-1 Showa-cho, Aichi Ume 1-Yu-shi (426) Nippon Denso Co., Ltd. Representative Kengo Toda 4th Director 1-1 Showa-cho, Ai SO! 1% I-Yu City House number 6
, drawings subject to correction. 7. Details of the amendment Regarding the two drawings labeled as Figure 5, one of them will be corrected to be ``Figure 6'' as shown in the attached drawing.

Claims (1)

[Claims] In a car air conditioner control device that supplies temperature-controlled air to the vehicle interior to change the air temperature in the vehicle interior, and is capable of changing the supply route of the conditioned air to the vehicle interior in at least two stages, A car air conditioner control comprising display means for displaying temperature information related to air temperature and distribution information related to the distribution of air temperature in a vehicle interior, and switching whether or not to display the distribution information according to a change in the supply route. Device.