JP2005335414A - Air-conditioning control device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve cooling efficiency by allowing the changeover between an internal air lead-in port and an external air lead-in port according to an air-conditioned state in a cabin. <P>SOLUTION: This air-conditioning control device for a vehicle is provided with an internal/external air changeover means, an internal air temperature detecting means, an external air temperature detecting means, and a control means for controlling air-conditioning output so that the internal air temperature becomes close to a set temperature. The air-conditioning control device is provided with an internal/external air changeover control means for comparing the internal air temperature detected by the internal air temperature detecting means, with the external air temperature detected by the external air temperature detecting means when starting the air-conditioning control device for the vehicle, and controlling to lead in external air by the internal/external air changeover means when the internal air temperature is higher than the external air temperature, while controlling to lead in internal air by the internal/external changeover means when the internal air temperature detected by the internal air temperature detecting means after starting the air-conditioning control device for the vehicle has dropped by a set deviation value or more from the internal air temperature detected by the internal air temperature detecting means when starting the air-conditioning control device for the vehicle. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle air-conditioning control device, and more particularly, to a vehicle air-conditioning control device that can switch between an inside air introduction port and an outside air introduction port according to a cooling state in a passenger compartment, and can improve cooling efficiency.

  Some vehicles are provided with a vehicle air-conditioning control device in order to make the environment in the passenger compartment comfortable and to prevent fogging and frosting of windows.

  The vehicle air-conditioning control device includes an inside / outside air switching means for switching between an inside air introduction port for introducing the inside air in the vehicle interior of the vehicle and an outside air introduction port for introducing outside air outside the vehicle interior, and detects the inside air temperature inside the vehicle interior. A so-called air temperature detecting means, an outside air temperature detecting means for detecting the outside air temperature outside the passenger compartment, and a control means for controlling the air conditioning output so that the inside air temperature detected by the inside air temperature detecting means approaches the set temperature. There is an auto air conditioner.

As such a vehicle air-conditioning control device, in order to rapidly cool the vehicle air-conditioning control device, the level between the inside air temperature and the outside air temperature is discriminated, and the air having the lower temperature is introduced. In some cases, an inside / outside air switching damper, which is an inside / outside air switching means, is operated.
In addition, as a conventional vehicle air-conditioning control device, in order to quickly cool the vehicle air-conditioning control device, when the inside air temperature is higher than the outside air temperature, the inside / outside air switching is performed so that the outside air is introduced for a certain period of time. There is one that operates an inside / outside air switching damper as a means.
Japanese Utility Model Publication No. 5-1519 JP-A-1-41526

  However, the vehicle air conditioning control device of Patent Document 1 has a problem in that it does not switch to the inside air circulation indefinitely because the outside air is introduced until the inside air temperature becomes lower than the outside air temperature. Continuing the introduction of outside air means that a certain amount of vehicle interior air equivalent to the outside air blown into the vehicle interior is discharged outside the vehicle interior, so that a part of the cooled air in the vehicle interior is also discharged. In other words, there is a disadvantage that the cooling efficiency is deteriorated.

  Further, the inside air temperature detected by the inside air temperature detecting means does not represent the temperature inside the vehicle compartment, nor is it the same temperature as the temperature of the inside air inlet. The temperature of the inside air inlet is lower than the inside air temperature detected by the inside air temperature detecting means. Therefore, even if the inside air temperature detected by the inside air temperature detecting means and the outside air temperature detected by the outside air temperature detecting means are compared and the inside air inlet and the outside air inlet are selected and switched, the air conditioning control is efficient. There is a bad problem.

  The vehicle air-conditioning control device of Patent Document 2 sets the time during which outside air is introduced according to the environmental conditions of the outside air temperature and the inside air temperature at the time of starting the vehicle air-conditioning control device. If the set time elapses regardless of the size, the problem is caused by switching to the introduction of inside air.

  For example, after starting the vehicle air-conditioning control device, there is a large difference in cooling capacity (compressor speed) between when the engine is stopped in an idling state and when traveling at a high speed (for example, 100 km / h). It is more efficient to continue the introduction of outside air in the idling state. Nevertheless, when the time set after the start of the vehicle air-conditioning control device has elapsed, switching to the introduction of inside air occurs, and there is a problem that cooling cannot be performed efficiently.

  The present invention provides an inside / outside air switching means for switching between an inside air introduction port for introducing inside air in a vehicle interior of the vehicle and an outside air introduction port for introducing outside air outside the vehicle interior, and an inside air temperature for detecting the inside air temperature in the vehicle interior. A vehicle comprising: a detection means; an outside air temperature detection means for detecting an outside air temperature outside the vehicle compartment; and a control means for controlling an air conditioning output so that the inside air temperature detected by the inside air temperature detection means approaches a set temperature. In the air conditioning control device, the inside air temperature detected by the inside air temperature detecting means at the start of the vehicle air conditioning control device is compared with the outside air temperature detected by the outside air temperature detecting means, so that the inside air temperature is greater than the outside air temperature. Is higher, the inside / outside air switching means controls the outside air to be introduced, and the inside air temperature detected by the inside air temperature detecting means after the start of the vehicle air conditioning control device is Provided is an inside / outside air switching control means for controlling the inside / outside air switching means to introduce the inside air when the internal air temperature detecting means falls below a set deviation value than the inside air temperature detected by the inside air temperature detecting means at the time of starting the dual-use air conditioning control device. It is characterized by that.

  This vehicle air-conditioning control device controls the inside / outside air switching control means to introduce outside air when the inside air temperature is higher than the outside air temperature when starting the vehicle air-conditioning control device, and after starting the vehicle air-conditioning control device When the inside air temperature of the vehicle falls below a set deviation value from the inside air temperature at the start of the vehicle air conditioning control device, the inside air inlet and the outside air are introduced according to the cooling state of the passenger compartment by controlling the inside air to be introduced. The mouth can be switched appropriately, and the cooling efficiency can be improved.

The vehicle air-conditioning control device according to the present invention compares the inside air temperature and the outside air temperature at the start and after the start of the vehicle air-conditioning control device, and controls so as to introduce the inside air and the outside air. Accordingly, the inside air introduction port and the outside air introduction port can be appropriately switched, and the cooling efficiency can be improved.
Embodiments of the present invention will be described below with reference to the drawings.

  1 to 3 show a first embodiment of the present invention. In FIG. 3, 2 is a vehicle air conditioning control device 2 mounted on a vehicle (not shown). The vehicle air conditioning control device 2 is provided with an air conditioning passage 6 formed by an air conditioning duct 4, and supplies air cooling means 8 for cooling air flowing through the air conditioning passage 6, air heating means 10 for heating air, and air. Air supply means 12 is provided.

  The air cooling means 8 includes at least a compressor 14 and an evaporator 16. The compressor 14 is driven via an electromagnetic clutch 18 by an engine (not shown) to compress the refrigerant. The evaporator 16 is arrange | positioned in the middle of the air-conditioning channel | path 6, and cools and dehumidifies the air which passes by the vaporization latent heat of the refrigerant | coolant compressed by the compressor 14. FIG.

  The air heating means 10 includes a heater core 20. The heater core 20 is disposed on the downstream side of the evaporator 16 and heats air using engine cooling water (not shown) as a heat source.

  The air supply means 12 includes a blower fan 22. The blower fan 22 is disposed on the upstream side of the evaporator 14 and is driven by the blower fan motor 24 to blow the air in the air conditioning passage 6 into the vehicle interior.

  The heater core 20 is arranged so as to be biased to one side in the width direction intersecting the flow direction of the air conditioning passage 6. As a result, the air conditioning passage 6 where the heater core 20 is disposed is parallel to the heater core passage 26 where the heater core 20 is disposed on one side in the width direction of the air conditioning passage 6 and the heater core passage 26 on the other side in the width direction of the air conditioning passage 6. And the bypass passage 28 is divided into two.

  An air mix damper 30 is disposed in the air conditioning passage 6 on the downstream side of the evaporator 16 and upstream of the heater core passage 26 and the bypass passage 28. The air mix damper 30 is driven by the air mix actuator 32 and distributes the air cooled and dehumidified by the evaporator 16 to the heater core passage 26 and the bypass passage 28.

  The upstream end of the air conditioning duct 4 is branched into an inside air introduction duct 34 that introduces inside air that is air in the vehicle interior (not shown) and an outside air introduction duct 36 that introduces outside air that is outside the vehicle interior. An upstream air inlet 38 that communicates with the vehicle interior and an outdoor air inlet 40 that communicates with the outside of the vehicle compartment are provided at the upstream end.

  In the air conditioning passage 6 where the air conditioning duct 4 is branched into an inside air introduction duct 34 and an outside air introduction duct 36, an inside / outside air switching damper 42 constituting an inside / outside air switching means is provided. The inside / outside air switching damper 42 is driven by the inside / outside air switching actuator 44 and switches the air conditioning passage 6 so that one of the inside air introduction port 38 and the outside air introduction port 40 communicates.

  The downstream end of the air-conditioning duct 4 is branched into a defrost duct 46, a vent duct 48, and a foot duct 50 for introducing the air in the air-conditioning passage 6 into the vehicle interior. A defrost outlet 52, a vent outlet 54, and a foot outlet 56 are provided.

  A defrost outlet damper 58, a vent outlet damper 60, and a foot outlet damper 62 are provided in the air conditioning passages 6 of the air conditioning duct 4 that branch into the defrost duct 46, the vent duct 48, and the foot duct 50, respectively. Provided. The defrost outlet damper 58, the vent outlet damper 60, and the foot outlet damper 62 are connected to each other, and are driven by the mode actuator 64 to link the defrost outlet 52, the vent outlet 54, and the foot outlet 56 together. Open and close.

  The electromagnetic clutch 18, the blower fan motor 24, the air mix actuator 32, the inside / outside air switching actuator 44, and the mode actuator 64 are connected to the control means 66 of the vehicle air conditioning control device 2.

  The control means 66 includes an evaporator temperature sensor 68 that detects the temperature of the evaporator 16 on the downstream side of the evaporator 16, an inside air temperature sensor 70 that is an inside air temperature detecting means that detects the inside air temperature in the vehicle interior, and an outside air temperature outside the vehicle interior. An outside air temperature sensor 72 serving as an outside air temperature detecting means, an engine cooling water temperature sensor 74 serving as an engine cooling water temperature detecting means for detecting engine cooling water temperature, and a solar radiation amount sensor 76 for detecting the amount of solar radiation incident on the passenger compartment. The operation panel 78 of the vehicle air-conditioning control device 2 is connected and provided. The operation panel 78 performs ON / OFF of the vehicle air conditioning control device 2, setting of the temperature of air blown into the vehicle interior, and the like.

  The vehicle air conditioning control device 2 takes in data from the sensors 68 to 76 by the control means 66 and operates the air cooling means 8, the air heating means 10, and the air supply means 12, and the inside air temperature in the vehicle interior is controlled. The air conditioning output is controlled so as to approach the set temperature set on the panel 78.

  In this vehicle air conditioning control device 2, an inside / outside air switching control means 80 is provided in the control means 66. The inside / outside air switching control means 80 compares the inside air temperature detected by the inside air temperature sensor 70 when the vehicle air-conditioning control device 2 is started with the outside air temperature detected by the outside air temperature sensor 72, so that the inside air temperature is higher than the outside air temperature. Is higher, the inside / outside air switching damper 42 controls the outside air to be introduced, and the inside air temperature detected by the inside air temperature sensor 70 after the vehicle air conditioning control device 2 is started is the temperature of the inside air when the vehicle air conditioning control device 2 is started. When the set deviation value or more falls below the inside air temperature detected by the sensor 70, the inside / outside air switching damper 42 is controlled to introduce inside air.

  The set deviation value for comparing the difference between the inside air temperature after the start of the vehicle air-conditioning control device 2 and the inside air temperature at the start is the inside air temperature detected by the inside air temperature sensor 70 when the vehicle air-conditioning control device 2 is started. The value is set in accordance with the outside air temperature detected by the outside air temperature sensor 72. In this embodiment, the set deviation value is set so as to increase in proportion to the difference between the inside air temperature and the outside air temperature when the vehicle air conditioning control device 2 is started.

  Next, the operation of this embodiment will be described.

  As shown in FIG. 2, the vehicle air-conditioning control device 2 is started by turning on a main switch (not shown) of the operation panel 78 and control is started (100), as shown in FIG. (102), information on the operation panel 78 (for example, set temperature by a set temperature switch) is read (104), information detected by the sensors 68 to 76 is read (106), and the various information read is blown into the vehicle interior. The required air blowing temperature is calculated (108), and the air volume of the air blown into the passenger compartment is calculated (110).

The required blowing temperature TAO of the air blown into the passenger compartment is
TAO = A * Set temperature + B * Inside air temperature + C * Outside air temperature + D * Insolation amount + E (A to E are constants)
It is calculated by the following formula.

  Moreover, the air volume of the air blown into the vehicle interior is obtained from the required blowing temperature TAO.

  Next, an inside / outside air introduction port process for switching between the inside air introduction port 38 and the outside air introduction port 40 is performed (112). In the inside / outside air introduction port processing (112), the inside / outside air switching control means 80 determines whether or not the vehicle air-conditioning control device 2 is in a starting state as shown in FIG. 1 (112-2).

  When the vehicle air-conditioning control device 2 is started and the determination (112-2) is YES, the inside air temperature and the outside air temperature are compared to determine whether or not the inside air temperature is higher than the outside air temperature. (112-4).

  When the inside air temperature is higher than the outside air temperature and the determination (112-4) is YES, the inside / outside air switching damper 42 controls the outside air introduction port 40 to communicate with the air conditioning passage 6 to introduce outside air into the vehicle interior. (112-6), the inside / outside air inlet process is terminated (112-8).

  If the inside air temperature is lower than the outside air temperature and the determination (112-4) is NO, the inside / outside air switching damper 42 causes the inside air introduction port 38 to communicate with the air conditioning passage 6 to circulate the inside air into the vehicle interior 6. (112-10), and the inside / outside air inlet processing is terminated (112-8).

  On the other hand, in the determination (112-2) whether or not the vehicle air-conditioning control device 2 is starting, when the determination (112-2) is NO, not when the vehicle air-conditioning control device 2 is started, Comparing the inside air temperature detected after starting with the inside air temperature detected at starting, whether or not the inside air temperature after starting is lower than the inside air temperature at starting by a set deviation value or more in this embodiment The value is set to 5 degrees, and it is determined whether or not the inside air temperature after starting is larger than the value obtained by subtracting 5 degrees from the inside air temperature at the time of starting (112-12).

  If the inside air temperature after starting is larger than the value obtained by subtracting 5 degrees from the inside air temperature at the time of starting, and the judgment (112-12) is YES, the inside / outside air switching damper 42 causes the outside air introduction port 40 to communicate with the air conditioning passage 6. Then, control is performed so that outside air is introduced into the vehicle interior 6 (112-14), and the inside / outside air introduction processing is terminated (112-8).

  When the inside air temperature after the start is smaller than the value obtained by subtracting 5 degrees from the inside air temperature at the start, and the judgment (112-12) is NO, the inside / outside air switching damper 42 causes the inside air introduction port 38 to communicate with the air conditioning passage 6. Then, control is performed so that the inside air is circulated into the vehicle interior 6 (112-16), and the inside / outside air introduction port processing is ended (112-8).

  When the inside / outside air introduction port process (112) is completed, the process returns to FIG. 2, and an air mix process is performed in which the mix damper 30 adjusts the ratio of the air cooled by the evaporator 16 and the air heated by the heater core 20 (114). Then, mode processing for switching the defrost outlet 52, the vent outlet 54, and the foot outlet 56 according to the mode set by the mode switch (not shown) of the operation panel 78 is performed (116), and the blower fan 22 performs air conditioning. A blower fan process for supplying the air in the passage 6 into the passenger compartment is performed (118), and the process returns to reading of information on the operation panel 78 (104).

  In this way, the vehicle air-conditioning control device 2 controls the inside / outside air switching control means 80 to introduce outside air when the inside air temperature is higher than the outside air temperature when the vehicle air-conditioning control device 2 is started. When the inside air temperature after the start of the air conditioning control device 2 for the vehicle is lower than the set air deviation temperature than the inside air temperature at the start of the air conditioning control device 2 for the vehicle by controlling to introduce the inside air, Accordingly, the inside air introduction port 38 and the outside air introduction port 40 can be appropriately switched, and the cooling efficiency can be improved.

  The set deviation value for switching from the outside air to the inside air after the vehicle air-conditioning control device 2 is started is a value set according to the inside air temperature and the outside air temperature at the time of starting the vehicle air-conditioning control device 2. Since the timing for switching from the introduction of the outside air to the introduction of the inside air can be changed according to the outside air temperature, highly accurate switching control can be realized.

  FIG. 4 shows a second embodiment. The vehicular air conditioning control device 2 of this embodiment has the same configuration as that shown in FIG. 3, and the inside / outside air inlet port processing of the flowchart shown in FIG. 2 is different. Therefore, in this embodiment, the inside / outside air inlet port processing shown in FIG. 4 will be described in detail with reference to FIGS.

  In the vehicle air conditioning control device 2 of this embodiment, the inside / outside air switching control means 80, as shown in FIG. 4, the inside air temperature and the outside air temperature sensor 72 detected by the inside air temperature sensor 70 when the vehicle air conditioning control device 2 is started. When the inside air temperature is higher than the outside air temperature, control is performed so that the outside air is introduced by the inside / outside air switching damper 42, and the inside air temperature sensor 70 is started after the vehicle air-conditioning control device 2 is started. When the lowering rate of the inside air temperature detected by the above is less than the set lowering rate, the inside / outside air switching damper 42 is controlled to introduce the inside air.

  When the control unit 66 starts the control by turning on a main switch (not shown) of the operation panel 78 as shown in FIG. 1 by the control means 66 and starts control (100), the initialization process (102). Then, the information on the operation panel 78 is read (104), the information detected by the sensors 68 to 76 is read (106), the required blowing temperature is calculated (108), and the air volume is calculated (110). An inside / outside air introduction port process for switching between the outside air introduction port 40 is performed (112).

  In the inside / outside air introduction port process (112), the inside / outside air switching control means 80 determines whether or not the vehicle air-conditioning control device 2 is in a starting state as shown in FIG. 4 (112-102).

  When the vehicle air conditioning control device 2 is started and the determination (112-102) is YES, the inside air temperature and the outside air temperature are compared to determine whether or not the inside air temperature is higher than the outside air temperature. (112-104).

  When the inside air temperature is higher than the outside air temperature and the judgment (112-104) is YES, the inside / outside air switching damper 42 controls the outside air introduction port 40 to communicate with the air conditioning passage 6 to introduce outside air into the vehicle interior. (112-106), the inside / outside air inlet process is terminated (112-108).

  When the inside air temperature is lower than the outside air temperature and the determination (112-104) is NO, the inside / outside air switching damper 42 causes the inside air introduction port 38 to communicate with the air conditioning passage 6 to circulate the inside air into the vehicle interior 6. (112-110), and the inside / outside air inlet processing is terminated (112-108).

  On the other hand, in the determination (112-102) of whether or not the vehicle air-conditioning control device 2 is starting, when the determination (112-102) is NO, not when the vehicle air-conditioning control device 2 is started, The rate of decrease in the inside air temperature detected after the start-up (decrease change in the inside air temperature per hour) is monitored to determine whether or not the rate of decrease in the inside air temperature is less than the set rate of decrease (112-112).

  When the decrease rate of the inside air temperature after the start is larger than the set decrease rate and the determination (112-112) is YES, the outside air introduction damper 40 is connected to the air conditioning passage 6 by the inside / outside air switching damper 42 to let outside air into the vehicle interior. 6 is controlled (112-114), and the inside / outside air inlet process is terminated (112-108).

  When the decrease rate of the inside air temperature after the start becomes smaller than the set decrease rate and the determination (112-112) is NO, the inside / outside air switching damper 42 connects the inside air introduction port 38 to the air conditioning passage 6 to drive the inside air. Control is performed so as to circulate into the room 6 (112-116), and the inside / outside air inlet processing is terminated (112-108).

  When the inside / outside air introduction port processing (112) is completed, the processing returns to FIG. 2, the air mixing processing is performed (114), the mode processing is performed (116), the blower fan processing is performed (118), and the information on the operation panel 78 is read. Return to (104).

  Thus, the vehicle air conditioning control device 2 of this embodiment is controlled by the inside / outside air switching control means 80 to introduce outside air when the inside air temperature is higher than the outside air temperature when the vehicle air conditioning control device 2 is started. When the lowering rate of the inside air temperature detected by the inside air temperature sensor 70 after the start of the vehicle air conditioning control device 2 becomes less than the set lowering rate, the inside / outside air switching damper 42 is controlled to introduce the inside air. In addition, the inside air inlet 38 and the outside air inlet 40 can be appropriately switched according to the cooling state in the passenger compartment, and the cooling efficiency can be improved.

  Moreover, since the vehicle air-conditioning control apparatus 2 of this embodiment monitors the change in the inside air temperature detected after the start and switches from the outside air to the inside air, the timing for switching from the outside air introduction to the inside air introduction should be set appropriately. Therefore, highly accurate switching control can be realized.

  When the inside air temperature is higher than the outside air temperature when the vehicle air conditioning controller 2 is started, the vehicle air conditioning control device 2 communicates the outside air introduction port 40 to the air conditioning passage 6 by the inside / outside air switching damper 42 to draw outside air. Although the control is performed so that the vehicle is introduced into the vehicle interior, the temperature in the vehicle interior can be quickly lowered by controlling the power window to be lowered to open the window, and the blower fan motor 24 is rotated. By increasing the speed of the conditioned air blown by the blower fan 22, the sensible temperature can be lowered and the refreshing feeling can be improved.

  The vehicle air-conditioning control device according to the present invention compares the inside air temperature and the outside air temperature at the start and after the start of the vehicle air-conditioning control device, and controls so as to introduce the inside air and the outside air. Accordingly, the inside air introduction port and the outside air introduction port can be appropriately switched to improve the cooling efficiency, and can be applied to the temperature control of the vehicle air conditioning control device.

It is a flowchart of the inside-and-outside air introduction port process of the vehicle air-conditioning control apparatus which shows 1st Example. It is a flowchart of control of the vehicle air-conditioning control apparatus. It is a schematic block diagram of the vehicle air-conditioning control apparatus. It is a flowchart of the inside-and-outside air introduction process of the vehicle air-conditioning control apparatus which shows 2nd Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 Vehicle air-conditioning control apparatus 4 Air-conditioning duct 6 Air-conditioning passage 8 Air cooling means 10 Air heating means 12 Air supply means 22 Blower fan 24 Blower fan motor 66 Control means 68 Evaporator temperature sensor 70 Outside air temperature sensor 72 Outside air temperature sensor 74 Engine cooling Water temperature sensor 76 Solar radiation sensor 78 Operation panel 80 Inside / outside air switching control means

Claims (3)

An inside / outside air switching means for switching between an inside air introduction port for introducing inside air in the vehicle interior of the vehicle and an outside air introduction port for introducing outside air outside the vehicle compartment, and an inside air temperature detection means for detecting the inside air temperature in the vehicle interior, An air conditioning control apparatus for a vehicle, comprising: an outside air temperature detecting means for detecting an outside air temperature outside the passenger compartment; and a control means for controlling an air conditioning output so that the inside air temperature detected by the inside air temperature detecting means approaches a set temperature. When the inside air temperature detected by the inside air temperature detecting means at the start of the vehicle air conditioning control device is compared with the outside air temperature detected by the outside air temperature detecting means, and the inside air temperature is higher than the outside air temperature, The inside / outside air switching means controls the outside air to be introduced, and the inside air temperature detected by the inside air temperature detecting means after the start of the vehicle air conditioning control device is the vehicle air conditioning control. An inside / outside air switching control means is provided for controlling the inside / outside air switching means to introduce the inside air when a set deviation value or more falls below the inside air temperature detected by the inside air temperature detecting means at the start of the apparatus. A vehicle air conditioning control device. The set deviation value is a value that is set according to the inside air temperature detected by the inside air temperature detecting means when the vehicle air conditioning control device is started and the outside air temperature detected by the outside air temperature detecting means. The vehicle air-conditioning control device according to claim 1. An inside / outside air switching means for switching between an inside air introduction port for introducing inside air in the vehicle interior of the vehicle and an outside air introduction port for introducing outside air outside the vehicle compartment, and an inside air temperature detection means for detecting the inside air temperature in the vehicle interior, An air conditioning control apparatus for a vehicle, comprising: an outside air temperature detecting means for detecting an outside air temperature outside the passenger compartment; and a control means for controlling an air conditioning output so that the inside air temperature detected by the inside air temperature detecting means approaches a set temperature. When the inside air temperature detected by the inside air temperature detecting means at the start of the vehicle air conditioning control device is compared with the outside air temperature detected by the outside air temperature detecting means, and the inside air temperature is higher than the outside air temperature, Control is performed so that outside air is introduced by the inside / outside air switching means, and a rate of decrease in the inside air temperature detected by the inside air temperature detecting means after the start of the vehicle air-conditioning control device is a set drop When it is less than, the vehicular air conditioning control apparatus characterized in that a outside air switching control means for controlling so as to introduce the inside air by said ambient air switching means.

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