JP2554090Y2 - Automotive air conditioners - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention detects a change in vehicle interior temperature with various sensors, and keeps the vehicle interior temperature at a set temperature so as to maintain the temperature of the blown air, the amount of blown air, an air inlet, and an outlet. In particular, the present invention relates to an air conditioner for a vehicle that automatically switches between air conditioners, particularly, by setting an intake mode to an outside air introduction mode during a cool down and setting an air conditioning mode to a differential mode, thereby promoting ventilation during the cool down. The room can be cooled rapidly. Further, the vehicle air conditioner is operated in conjunction with the remote start of the vehicle engine by radio, so that the pre-cooling of the vehicle interior can be sufficiently performed.

[0002]

2. Description of the Related Art In recent years, some air conditioners for automobiles are referred to as auto air conditioners that improve the comfort of occupants by maintaining the interior temperature of a vehicle at a set temperature. This auto air conditioner
A variety of sensors detect changes in the amount of solar radiation or changes in the cabin temperature due to fluctuations in the occupants, etc., and maintain the cabin temperature at the set temperature. Switching is automatically performed by an auto amplifier (control means).

A vehicle air conditioner is disclosed in Japanese Unexamined Patent Publication No.
As disclosed in Japanese Patent No. 4916, an intake unit for selectively taking in air or outside air in a vehicle, a cooler unit for cooling the air taken in, and a heater unit for heating air and blowing the air to a predetermined position in the vehicle interior are provided. And
These are connected to each other. The cooler unit is provided with an evaporator through which the refrigerant circulates, and the evaporator exchanges heat between the refrigerant and air blown into the vehicle interior to cool the air. The intake unit has an inside air inlet for taking in air in the vehicle compartment, an outside air inlet for taking in outside air, and an openable and closable intake door for selectively opening and closing these inlets. When this intake door is rotated to the position where the inside air introduction port is closed and the outside air introduction port is opened, the intake mode becomes the outside air introduction mode that takes in only outside air, and conversely, when the outside air introduction port is closed and the inside air introduction port is opened, the intake mode is rotated. The intake mode is an inside air circulation mode that takes in only vehicle interior air. Further, the heater unit includes a defrost port, a vent port, a foot port, and a defrost door, a vent door, and a foot door for opening and closing each of the ports to collect air from the unit. Door). There are various air conditioning modes of an air conditioner for a vehicle, such as a differential mode in which air is blown out toward the inner surface of the window to remove fogging of the window and a vent mode in which air is blown out toward the upper body of the occupant. These air conditioning modes are realized by switching the rotation position of the mode door.

[0004] There is a remote starting device for an automobile engine in which the engine of the automobile is remotely started by radio to sufficiently warm up the engine before the occupant gets on the automobile (Japanese Utility Model Laid-Open No. 61-174250). reference). As shown in the schematic block diagram of FIG. 7, the remote starter for an automobile engine includes a transmitter 10 operated by a caller, a radio 11 for receiving an engine start command transmitted from the transmitter 10, and an automobile. A controller 14 for operating an engine starter 13 for starting the engine 12 based on the engine start command. The transmitter 1
0 is provided with a remote engine start switch 15, and the radio 11 is provided with an antenna 16 and a receiver 17. The wireless device 11, the engine 12, the engine starter 13 and the controller 14 are mounted on a vehicle.

A switch group 18 such as a parking brake switch for detecting that a parking brake is set and a door switch for detecting that all doors are closed are connected to the controller 14. .

FIG. 8 shows a main flow of the operation of the remote starter 20. When the caller turns on the remote engine start switch 15 of the transmitter 10, the radio 11
Receives the engine start command, the controller 14 performs a safety check when starting the automobile engine 12 (step S10), and if the starting conditions are satisfied, activates the engine starter 13 to start the engine 12 ( In step S20, the engine 12 is stopped after a lapse of a predetermined time after the warm-up ends (step S20).
30).

Further, the above publication (Japanese Utility Model Application Laid-Open No. 61-17425)
No. 0) discloses a technique in which an automobile air conditioner is operated in conjunction with a remote start of an automobile engine 12 by radio to heat or cool a vehicle interior in advance. Proposed.

[0008]

[Problems to be Solved by the Invention] If a car is left in the scorching sun in the summer, it will be affected by solar radiation and the like, so that the temperature in the cabin is extremely higher than the outside air temperature. In such a case, when the occupant operates the automatic air conditioner, the auto amplifier performs various calculations such as comparing the target set temperature set by the occupant with the vehicle interior temperature, and performs the blow-out air temperature, the blow-out air amount, and the air intake port. , And the air outlet is automatically switched to start the cooling air conditioning operation.

In the air conditioner for a vehicle disclosed in the above-mentioned publication (Japanese Patent Application Laid-Open No. 59-34916), when performing the cooling air conditioning operation in such a rapid cooling mode, the air conditioning mode is set to the vent mode. The cold air cooled by the evaporator is directly blown out toward the occupant, and the maximum air-conditioning operation is performed by setting the intake mode to the external air introduction mode because the temperature in the vehicle interior is higher than the temperature outside the vehicle interior (Japanese Patent Laid-Open No. 4 (1994)). (See flowchart in figure).

When the cool air (vented air) is directly blown toward the occupant, it is possible to give the occupant a sense of cold temperature (warmth). However, when the vent wind is blown out in this manner, the hot air in the passenger compartment remains in the upper region of the passenger compartment from the front window to the rear window through the ceiling portion. There is a problem that the head cannot be quickly cooled down.

Further, even when the vehicle interior is cooled in advance by operating the auto air conditioner in conjunction with the remote start of the vehicle engine 12 by radio, the hot air stays in the upper region of the vehicle interior and the outside of the vehicle interior. Therefore, there is a problem that the vehicle interior cannot be sufficiently cooled to the target temperature within a limited time from when the engine 12 is remotely started and stopped after warming up.

The present inventors have conducted intensive studies to cool the vehicle interior quickly and reliably even when the vehicle interior is extremely hot under the hot summer weather, and as a result, the differential blown out from the defrost opening. The point where wind flows along the front window, ceiling, and the inner surface of the rear window, and the air that is taken in the outside air introduction mode and blows out into the cabin passes through the vicinity of the rear window and is exhausted outside the vehicle through the drafter By focusing on the points and blowing out the air taken in the outside air introduction mode during the cool down in the differential mode, it can be seen that the hot air in the upper part of the cabin is quickly expelled out of the cabin and the cabin can be cooled quickly and reliably. We started and completed the present invention.

Accordingly, a first object of the present invention is to provide an air conditioner for a vehicle which can rapidly cool the vehicle interior during cool down. Further, a second object of the present invention is to provide an air conditioner for a vehicle which operates in conjunction with a remote start of a vehicle engine by radio and can sufficiently perform pre-cooling within a limited time. It is in.

[0014]

SUMMARY OF THE INVENTION In order to achieve the first object, the present invention provides an outlet air temperature, an outlet air volume, an air inlet, and an outlet so as to maintain a vehicle interior temperature at a set temperature. An air conditioner for vehicles that automatically switches between air intake modes, such as an outside air introduction mode that takes in only outside air and an intake mode such as an inside air circulation mode that takes in only vehicle interior air. A mode door that switches between an air conditioning mode such as a differential mode that blows out air and a vent mode that blows air toward the occupant's upper body, a vehicle interior temperature detector that detects the temperature inside the vehicle, and a vehicle that detects the temperature outside the vehicle interior Outdoor temperature detecting means,
When the cooling air conditioning operation is started, when the vehicle interior temperature detected by the vehicle interior temperature detecting means is higher than a predetermined temperature based on the vehicle outside temperature detected by the vehicle outside temperature detecting means, the intake door is driven. Control means for setting the intake mode to the outside air introduction mode and driving the mode door to set the air conditioning mode to the differential mode.

In order to achieve the second object, the present invention provides a vehicle air conditioner, comprising: a transmitter operated by a caller; and a radio for receiving an engine start command transmitted from the transmitter. A controller for operating an engine starter for starting the vehicle engine based on the engine start command, the controller being connected to the controller, and the engine being remotely started by radio. It is designed to work in conjunction with

[0016]

In the air conditioner for an automobile configured as described above, when the cooling air conditioning operation is started, the vehicle interior temperature detected by the vehicle interior temperature detector is detected by the vehicle exterior temperature detected by the vehicle exterior temperature detector. When the temperature is higher than the predetermined temperature, the intake door and the mode door are driven by the control means, the intake mode is set to the outside air introduction mode, and the air conditioning mode is set to the differential mode. After being blown toward the inner surface of the window, the differential wind in the differential mode flows along the inner surface of the window and ceiling to the rear of the vehicle interior and is exhausted to the outside of the vehicle interior. Because of the flow of cold air, the hot air in the upper area of the vehicle interior is forced out of the vehicle interior during cool down, so the vehicle interior is rapidly cooled even when the vehicle interior is extremely hot. become.

Further, by incorporating the vehicle air conditioner into the vehicle engine remote start means, the vehicle air conditioner operates in conjunction with the remote start of the vehicle engine by radio, and performs a cooling air conditioning operation. If the vehicle interior temperature is higher than a predetermined temperature based on the vehicle exterior temperature when starting, the intake door and the mode door are driven by the control means, the intake mode is set to the outside air introduction mode, and the air conditioning mode is set. Set to differential mode. Since the hot air in the vehicle interior is expelled from the vehicle interior during the cool down due to the flow of the differential wind in the differential mode, the vehicle interior temperature can be cooled to a target temperature within a limited time. Therefore, even when the temperature in the vehicle compartment is extremely high, the pre-cooling in the vehicle compartment is sufficiently performed in accordance with the warm-up of the engine.

[0018]

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 schematic configuration diagram showing a remote starter of an automobile engine incorporating an air conditioner for an automobile according to an embodiment of the present invention, FIG. 2 is a main flow showing the operation of the remote starter, and FIG. FIG. 4 is a subroutine of the engine on control shown in FIG. 2, FIG. 5 is a subroutine of the auto air conditioner on / off control shown in FIG. 2, and FIG. 2 is a subroutine of the engine-off control shown in FIG. 2, in which members common to those shown in FIG. 7 are denoted by the same reference numerals, and the description thereof is partially omitted.

First, the remote starting device 30 for an automobile engine shown in FIG. 1 will be described. Remote starter 30
Is, as shown, a transmitter 10 operated by the caller;
The wireless device 11 receives the engine start command transmitted from the transmitter 10 and the controller 34 operates the engine starter 13 for starting the automobile engine 12 based on the engine start command. The transmitter 10 includes a remote engine start switch 15 and an engine 1
An engine start confirmation switch 35 is provided to request that the horn 39 sound when the engine 2 starts.

The controller 34 includes a parking brake switch for detecting that the parking brake is set, a door switch for detecting that all doors are closed, and a hood for detecting that the hood is closed. A switch and a switch group 18 such as a parking position switch for detecting that the select lever of the automatic car is in the parking position are connected. Each of these switches
It is constituted by a micro switch or the like, and outputs a turn-on signal when a predetermined matter is detected. A horn 39 is connected to the controller 34.

Next, the vehicle air conditioner 40 will be described. The illustrated vehicle air conditioner 40 is a so-called auto air conditioner 40 and has an auto amplifier (corresponding to control means) 65 for controlling the driving of various doors 46, 54, 59 to 61 attached thereto. And
The auto amplifier 65 is connected to the controller 34 of the remote starter 30. The illustrated auto air conditioner 40 operates in conjunction with the remote start of the vehicle engine 12 by radio, and performs preliminary air conditioning of the vehicle interior.

As is well known, the air conditioner 40 for an automobile includes an intake unit 41 for selectively taking in the air in the vehicle interior or the outside air, a cooler unit 42 for cooling the air taken in, and an air conditioner for heating the air in the vehicle interior. And a heater unit 43 that blows out to a predetermined position.

The intake unit 41 is formed with an inside air inlet 44 for taking in the air inside the vehicle and an outside air inlet 45 for taking in the outside air. An intake door 46 for selectively opening and closing these inlets 44, 45 is opened and closed. It is provided freely. The intake door 46 is connected to the inside air inlet 44.
When closing and turning to the position where the outside air introduction port 45 is opened, the suction mode becomes the outside air introduction mode that takes in only outside air, and conversely,
When the outside air introduction port 45 is closed and the inside air introduction port 44 is rotated to a position where the inside air introduction port 44 is opened, the intake mode becomes the inside air circulation mode for taking in only the air in the vehicle compartment. Further, a fan 47 driven by a fan motor M is provided to send the taken air to the cooler unit 42. By adjusting the voltage applied to the fan motor M, the fan 47 can be operated at Lo (low speed), Hi (high speed), or can be automatically operated between Lo and Hi in a stepless manner.

The cooler unit 42 incorporates an evaporator 48 for circulating a refrigerant, and performs heat exchange between the refrigerant and air to cool the air. This evaporator includes a compressor, condenser,
A cooling cycle is constituted with an expansion valve and the like.

The heater unit 43 is provided with a heater core 49 for heating air so as to have a bypass passage 50. The engine coolant is circulated through the heater core 49, and the heater core 49 exchanges heat between the engine coolant and air to heat the air. The temperature of the air blown into the vehicle interior is changed by changing the ratio of the amount of air passing through the heater core 49 and the amount of air passing through the bypass passage 50. Therefore, the mix door 54 is provided on the front surface of the heater core 49. It is provided to open and close freely. This mixed door 54 is shown in FIG.
When turning to the full hot position shown by the arrow, the air passes through the full heater core 49 to perform the maximum heating operation, and when turning to the full cool position shown by C in the figure, the air flows into the full bypass passage 5.
Through 0, the maximum cooling operation is performed. Also, mixed door 5
4 is rotated to the intermediate position M excluding the full hot position H and the full cool position C, the air from the cooler unit 42 passes through the heater core 49 and the bypass passage 50 at a ratio according to the rotational position, It is adjusted to a predetermined temperature.

Downstream of the heater core 49, the heater core 4
A mixing chamber 55 is formed for mixing the hot air that has passed through the heater 9 and the hot air that has passed through the bypass passage 50. A heater unit 43 is provided with a defrost port 56, a vent port 57, and a foot port 58 for taking out the air from the mixing chamber 55. Defrost mouth 5
6 is blown out toward the inner surface of the window through a differential duct (not shown), and air from vent port 57 is blown out toward the upper body of the occupant through a vent duct (not shown). The air from the foot opening 58 is blown out toward the foot of the occupant via a foot duct (not shown). The ports 56, 57 and 58 have a defrost door 59 and a vent door 6 for opening and closing them.
0, foot door 61 (collectively called "mode door")
) Is provided so as to be freely opened and closed.

The air conditioning mode of the vehicle air conditioner 40 includes a differential mode in which air is blown toward the inner surface of the window to remove fogging of the window, a vent mode in which air is blown toward the upper body of the occupant, and an air mode in which the air is directed toward the feet. There are various modes such as a foot mode for blowing air, and a bi-level mode for performing head and foot thermal air conditioning. These air conditioning modes are realized by switching the rotation positions of the mode doors 59 to 61. For example, in the case of the differential mode, the vent door 60 and the foot door 61 are respectively connected to the vent 5
7 and the foot port 58 are closed, and the defrost door 59 opens the defrost port 56 to the maximum. In the vent mode, the defrost door 59 and the foot door 61 close the defrost port 56 and the foot port 58, respectively, and the vent door 60 opens the vent port 57 to the maximum. In the foot mode, the defrost door 59 and the vent door 60 close the defrost port 56 and the vent port 57, respectively, and the foot door 61 opens the foot port 58 to the maximum.

The auto air conditioner 40 detects a change in the vehicle interior temperature due to a change in the outside air temperature, the amount of solar radiation, or a change in the occupant by various sensors, and adjusts the temperature of the blown air to maintain the vehicle interior temperature at the set temperature. , The air volume, the air inlet, and the outlet are automatically switched. The auto amplifier 65 includes an intake door actuator 66 for driving the intake door 46, a fan control circuit 67 for adjusting the voltage applied to the fan motor M, and a mix door actuator 6 for driving the mix door 54.
8. A mode door actuator 69 for driving the mode doors 59 to 61 is connected. Also, the auto amplifier 6
5 includes an inside air sensor (corresponding to a vehicle interior temperature detecting means) 70 for converting the vehicle interior temperature to a resistance value and detecting the same, and an external air sensor (corresponding to a vehicle interior temperature detecting means for converting the outside air temperature to a resistance value and detecting the same. A group of sensors such as 72) and switches such as an A / C switch 71 for operating the compressor when the automatic air conditioner 40 operates are connected. And
The auto-amplifier 65 performs an arithmetic process on input signals from switches and a group of sensors by a built-in microcomputer, and comprehensively controls the actuators 66, 68, 69 and the fan control circuit 67.

Particularly, the air conditioner 4 for a vehicle according to the present embodiment.
0, the auto amplifier 65 is connected to the A / C switch 7
When the air conditioner 1 is turned on and the cooling air conditioning operation is started, the vehicle interior temperature Ti (° C.) detected by the inside air sensor 70 is a predetermined temperature (Ta + k, where Ta + k, based on the vehicle outside temperature Ta (° C.) detected by the outside air sensor 72. When k is higher than a constant, the control signal for setting the intake mode to the outside air introduction mode is output to the intake door actuator 66, and the control signal for setting the air conditioning mode to the differential mode is output to the mode door actuator 69. Have been. Further, in this case, the auto amplifier 65 sets the fan 47 to Hi.
The control signal for (high-speed) operation is transmitted to the fan control circuit 6
7 and a control signal for rotating the mix door 54 to the full cool position C is output to the mix door actuator 68.

The constant k for determining the predetermined temperature (Ta + k) can be set by selecting a desired value as appropriate. For example, if it is set to + 5 ° C., the vehicle interior temperature Ti (° C.)
Is 5 ° C. higher than the outside temperature Ta (° C.)
When the cooling air conditioning operation by the auto air conditioner 40 is started,
The intake mode becomes the outside air introduction mode, and the air conditioning mode becomes the differential mode. On the other hand, when the vehicle interior temperature Ti (° C.) is not higher than the vehicle exterior temperature Ta (° C.) by 5 ° C., the normal automatic air conditioner control is performed when the cooling air conditioning operation is started. When the constant k is set to 0 (zero) or a negative value (for example, −2 ° C.), and the vehicle interior temperature Ti is higher than the vehicle exterior temperature Ta or higher than a temperature slightly lower than the vehicle exterior temperature Ta. Alternatively, the intake mode may be set to the outside air introduction mode and the air conditioning mode may be set to the differential mode.

Next, the operation of the vehicle air conditioner 40 of this embodiment will be described based on the main flow shown in FIG. 2 and each subroutine shown in FIGS.

As shown in FIG. 2, when the sender turns on the remote engine start switch 15 of the transmitter 10, the radio 1
1 receives the engine start command, and the controller 34
A safety check when starting the engine 12 is started (step S10).

When the subroutine of the engine start safety check (step S10) starts, as shown in FIG. 3, the controller 34 determines whether or not each switch of the switch group 18 is on (steps S11 to S11).
S14) If all starting conditions are satisfied, that is, the parking brake is set (S11), all the doors are closed (S12), the hood is closed (S13), and the selection is made. Only when the lever is in the parking position (S14), an engine start signal is output (step S15), and the process returns to the main flowchart. On the other hand, steps S11 to S1
If at least one of the starting conditions in 4 is not satisfied, the routine proceeds to step S16, where a predetermined engine stop processing operation is performed.

If all of the starting conditions are satisfied, the controller 34 starts the engine-on control (step S20).

This engine-on control (step S2)
When the subroutine (0) starts, as shown in FIG. 4, the controller 34 operates the engine starter 13 to start the automobile engine 12 (step S2).
1). If it is determined in step 22 that the engine 12 has been started from the power generation state of the alternator, a timer built in the controller 34 is started (step S23). If the caller turns on the engine start confirmation switch 35 of the transmitter 10 before t2 seconds elapse from the start of the engine, the radio 11 receives the
4 sounds the horn 39 for one second and returns to the main flowchart (steps S24 to S26). The caller recognizes that the engine 12 has started normally by the sound of the horn. If the engine start confirmation switch 35 is not turned on until t2 seconds have elapsed since the start of the engine, the flow returns to the main flowchart without sounding the horn 39 (step S24). On the other hand, if it is determined that the engine start has failed in step 22, the engine start from the engine start safety check (step S10)
(Steps S27 and S28), and if it fails three or more times, the process proceeds to step S29, where a predetermined engine stop processing operation is performed.

When the engine 12 is started, the controller 34 starts the automatic air conditioner on / off control (step S30).

When the subroutine of the automatic air conditioner on / off control (step S30) starts, FIG.
As shown in FIG.
After resetting the auto-amplifier 65 to 0 and setting the target set temperature to, for example, 25 ° C. (step S31),
The A / C switch 71 is turned on to operate the automatic air conditioner 40 (step S32). In step S33, the vehicle interior temperature Ti detected by the inside air sensor 70 is compared with a summer determination set temperature (for example, 30 ° C.) Ts preset in an auto amplifier to determine summer, and the vehicle interior temperature Ti is determined. If the temperature is equal to or higher than the summer determination set temperature Ts, that is, if the cooling air conditioning operation is required, the process proceeds to step 34. In step 34, the vehicle interior temperature Ti and the outside air sensor 7
2, a predetermined temperature (Ta) based on the vehicle outside temperature Ta detected in
When the vehicle interior temperature Ti is higher than the vehicle exterior temperature Ta by + k ° C. (for example, 5 ° C.) due to the influence of solar radiation or the like, the process proceeds to step 35.

In this step 35, the auto amplifier 65
Outputs a control signal for setting the intake mode to the outside air introduction mode to the intake door actuator 66 and a control signal for setting the air conditioning mode to the differential mode to the mode door actuator 69. By the output of these control signals, the intake door 46 is driven by the intake door actuator 66 to close the inside air inlet 44 and open only the outside air inlet 45, and the mode doors 59 to 61 are driven by the mode door actuator 69. The vent door 60 and the foot door 61 are respectively
And the foot opening 58 are closed, and the defrost door 59 opens the defrost opening 56 to the maximum. Further, in this step 35,
The auto amplifier 65 outputs a control signal for operating the fan 47 to Hi (high speed) to the fan control circuit 67, and outputs a control signal for rotating the mix door 54 to the full cool position C to the mix door actuator 68. As a result, only the air outside the cabin, which is cooler than the cabin, is taken into the auto air conditioner 40 by the fan 47 rotating at a high speed, and this air is cooled by the refrigerant when passing through the evaporator 48 to become cool air. This cold air flows into the defrost port 56
After being blown out through the differential duct (not shown) toward the inner surface of the front window, the air flows along the inner surfaces of the front window, the ceiling, and the rear window.
Further, since the dynamic pressure in the vehicle interior is high because air is taken in the outside air introduction mode, the cold air blown out as a differential wind flows to the vicinity of the rear window and passes through a drafter (not shown). It will be exhausted outside. By such a flow of the cold air, the hot air in the upper region in the vehicle compartment is quickly expelled out of the vehicle compartment, and the space in the vehicle compartment can be cooled quickly and reliably.

As described above, when the outside air introduction mode and the differential mode are set and the pre-cooling operation is continued while expelling the hot air in the vehicle compartment (steps S33 to S36), the auto amplifier 6
In step S37, when the timer counts t3 seconds from the start of the automatic air conditioner 40 (step S36), the process proceeds to step S37.
Proceed to. Further, in the comparison between the vehicle interior temperature Ti and the predetermined temperature (Ta + k) based on the vehicle exterior temperature Ta in step 34, the vehicle interior temperature Ti is higher than the vehicle exterior temperature Ta by +.
Even when the temperature is not raised by k ° C. (for example, 5 ° C.), the process proceeds to step 37. Then, in this step S37,
The auto amplifier 65 sets the intake mode to the inside air circulation mode, sets the air conditioning mode to the vent mode, and sets the fan 47
Is operated automatically. After the hot air is almost completely discharged, the cooling is performed by the internal air circulation, so that the vehicle interior is rapidly cooled.

When the cooling / air-conditioning operation is continued (steps S37 and S38), the auto amplifier 65 turns off the A / C switch 71 when the timer counts t4 seconds from the start of the auto air conditioner 40 (step S38). The air conditioner 40 is stopped (step S39). Thereby, the pre-cooling by the automatic air conditioner 40 is completed, and the process returns to the main flowchart.

On the other hand, in the comparison between the vehicle interior temperature Ti and the summer determination temperature Ts in step S33, when the vehicle interior temperature Ti is lower than the summer determination temperature Ts,
Proceed to step S40. In step S40, the vehicle interior temperature Ti and a winter determination set temperature (for example, 10 ° C.) preset in the auto amplifier 65 to determine winter.
If the vehicle interior temperature Ti is equal to or lower than the winter determination set temperature Tw, that is, if the heating and air conditioning operation is required, the process proceeds to step S41. In step S41, the auto amplifier 65 sets the intake mode to the inside air circulation mode, sets the air conditioning mode to the foot mode, and automatically operates the fan 47. Since the heating is performed by the inside air circulation as described above, the vehicle interior is rapidly heated. Then, if this heating / air-conditioning operation is continued until t4 seconds have elapsed from the start of the automatic air-conditioner 40 (step S41,
S38), the auto amplifier 65 ends the pre-heating by the auto air conditioner 40, and returns to the main flowchart.

In the comparison between the vehicle interior temperature Ti and the winter determination set temperature Tw in step S40, when the vehicle interior temperature Ti is higher than the winter determination set temperature Tw,
Proceed to step 42. In this step S42, the mode shifts to a mode for performing normal automatic air conditioner control, and the auto amplifier 65 is controlled by a built-in microcomputer.
Performs arithmetic processing on input signals from switches and sensors,
The actuators 66, 68, 69 and the fan control circuit 67 are comprehensively controlled, and the blow-out air temperature (rotation control of the mix door 54), the blow-out air amount (fan motor M), and switching between the air inlet and the air outlet (rotation control of the intake door 46 and the mode doors 59 to 61) is automatically performed. This automatic air conditioner control operation is performed at the time t4.
If the operation is continued until the second elapses (steps S42, S3
8) The auto amplifier 65 ends the pre-air conditioning by the auto air conditioner 40 (step S39), and returns to the main flowchart.

When the automatic air conditioner 40 is turned off, the controller 34 starts engine off control (step S50).

This engine-off control (step S5)
When the subroutine 0) starts, as shown in FIG. 6, the controller 34 sets the timer started in step S23 to t1 seconds (t2 <t3 <t) from the start of the engine.
When 4 <t1) is counted (step S51), an engine off signal is output (step S52). And
Proceeding to step S53, a predetermined engine stop processing operation is performed. The time t1 from the start of the engine to the stop of the engine is set to an arbitrary time of about 10 to 20 minutes at which the warming-up or the like ends.

As described above, the automatic air conditioner 40 of this embodiment is
When the cooling air-conditioning operation is started, when the vehicle interior temperature Ti is higher than the vehicle interior temperature Ta by k ° C. (for example, 5 ° C.), the outdoor air introducing mode and the differential mode are set.
Because the pre-cooling operation is performed while expelling the hot air in the cabin by the diff wind, even if the cabin is extremely hot under the hot summer sun, the space in the cabin, especially the occupant's head, is Rapid and reliable cooling.

In the automatic air conditioner 40 according to the present embodiment, even when pre-cooling of the vehicle interior is performed by operating in conjunction with the remote start of the vehicle engine 12, when the above condition is satisfied, the differential air in the vehicle interior is provided by the differential wind. Since the hot air is expelled, it is possible to reliably cool the vehicle interior to the target set temperature during the predetermined time. As a result, even when the temperature in the vehicle interior is extremely high, the pre-cooling in the vehicle interior can be sufficiently performed in accordance with the warm-up of the engine 12, and
It became possible to give a comfortable feeling of warmth to the occupants who subsequently board.

[0047]

As described above, according to the automotive air conditioner of the present invention, when the air-conditioning operation is started, when the temperature in the vehicle interior is higher than a predetermined temperature based on the temperature outside the vehicle interior, the intake air is controlled. The mode is set to the outside air introduction mode, the air conditioning mode is set to the differential mode, and the cooling operation is performed while driving out the hot air in the vehicle interior by the differential wind. As a result, even when the temperature in the vehicle interior is extremely high, the vehicle interior can be quickly and reliably cooled.

Further, the air conditioner for a vehicle operates in conjunction with the remote start of the engine by radio, and when the air conditioning operation is started, the temperature in the vehicle compartment becomes a predetermined temperature based on the temperature outside the vehicle compartment. When the air temperature is higher than the above, the intake mode is set to the outside air introduction mode, the air conditioning mode is set to the differential mode, and the cooling operation is performed while driving out the hot air in the vehicle compartment by the differential wind. As a result, even when the vehicle interior is extremely hot, the vehicle interior temperature can be cooled to the target temperature within a limited time, and the vehicle interior can be cooled in accordance with the warm-up of the engine. This has an effect that the pre-cooling can be sufficiently performed.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a remote starting device of an automobile engine incorporating an automobile air conditioner according to an embodiment of the present invention.

FIG. 2 is a main flow chart showing the operation of the remote starter shown in FIG. 1;

FIG. 3 is a subroutine of an engine start safety check shown in FIG. 2;

FIG. 4 is a subroutine of engine-on control shown in FIG.

FIG. 5 is a subroutine of the auto air conditioner on / off control shown in FIG. 2;

FIG. 6 shows a subroutine of engine-off control shown in FIG.

FIG. 7 is a schematic block diagram showing a conventional remote start device.

FIG. 8 is a main flow chart showing the operation of the remote starter shown in FIG. 7;

[Explanation of symbols]

10 ... Transmitter 11 ... Wireless device 12 ...
Automobile engines 20, 30 Remote starter for automobile engines (automobile engine remote start means) 34 Controller 40 Automobile air conditioner (auto air conditioner) 46 Intake door 59 Defrost door (mode door) 60 Vent door (mode) Door: 61: Foot door (mode door) 65: Auto amplifier (control means) 70: Inside air sensor (vehicle interior temperature detection means) 72: Outside air sensor (vehicle exterior temperature detection means) Ti: Vehicle interior temperature Ta: Vehicle interior temperature Ta + k … Predetermined temperature based on vehicle exterior temperature

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Futani Shinki 5-24-15 Minamidai, Nakano-ku, Tokyo Calsonic Inside (72) Inventor Takashi Otsuka 5-24-15 Minamidai, Nakano-ku, Tokyo Cal Sonic Corporation

Claims (2)

(57) [Scope of request for utility model registration] An air conditioner for an automobile which automatically switches an outlet air temperature, an outlet air volume, an air inlet, and an outlet so as to maintain a vehicle interior temperature at a set temperature. An intake door (46) that switches between an intake mode such as an outside air introduction mode that takes in only the inside air and an inside air circulation mode that takes in only the cabin air, a differential mode that blows air toward the inner surface of the window,
Mode doors (59, 60, 61) for switching between air conditioning modes such as vent mode for blowing air toward the upper body of the occupant, and vehicle interior temperature detecting means (70) for detecting the temperature (Ti) in the vehicle interior
And a vehicle exterior temperature detecting means (72) for detecting a vehicle exterior temperature (Ta).
When the cooling air conditioning operation is started, the vehicle interior temperature (Ti) detected by the vehicle interior temperature detection means (70) is based on the vehicle exterior temperature (Ta) detected by the vehicle interior temperature detection means (72). Predetermined temperature
When the pressure is higher than (Ta + k), the intake door (46) is driven to set the intake mode to the outside air introduction mode, and the mode doors (59, 60, 61) are driven to change the air conditioning mode to the differential mode. An air conditioner for a vehicle, comprising: a control unit (65) for setting the air conditioner to an air conditioner. 2. A transmitter (10) operated by a caller, a radio (11) for receiving an engine start command transmitted from the transmitter (10), and an engine starter for starting an automobile engine (12). (13) is incorporated in a vehicle engine remote start means (30) having a controller (34) for operating based on the engine start command, the control means (65) is connected to the controller (34), 2. The air conditioner for a vehicle according to claim 1, wherein the air conditioner is operated in conjunction with the remote start of the vehicle by wireless.