JP2019166956A - Air-conditioning control device - Google Patents

Abstract

To quickly make a user set temperature when performing a pre-air conditioning operation.SOLUTION: An air-conditioning control device X comprises: an outside air temperature sensor 20 which detects an outside air temperature; a room temperature sensor 21 which detects a temperature in a cabin; and a control part 25 which performs control for a pre-air conditioning operation on the basis of a user set temperature which is set by a user. When performing the pre-air conditioning operation, necessity of quick operation for quickly the temperature in the cabin to the user set temperature is determined on the basis of the outside air temperature, the temperature in the cabin, and the user set temperature during air conditioning operation of at the previous time. When performing quick operation, a target set temperature at the quick operation time is determined on the basis of a target temperature for performance of quick operation set according to the outdoor air temperature, and the user set temperature.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an air-conditioning control device for performing a pre-air-conditioning operation in which a passenger compartment is set to a comfortable temperature desired by a user.

  The air conditioner mounted on the vehicle is controlled by the air conditioner control device, and a pre-air conditioning operation is performed to bring the vehicle interior to a predetermined temperature before getting into the vehicle interior. In the pre-air-conditioning operation described in Patent Document 1, the target temperature is set based on the outside air temperature and the passenger compartment temperature. Usually, the target temperature is set in advance. Here, for example, when the outside air temperature is high and the passenger compartment temperature is also high, it takes a considerable time to reach a preset target temperature. Therefore, in such a case, the target temperature is set slightly lower than the preset temperature.

JP 2000-97138 A

  In the pre-air-conditioning operation, the target temperature is set in advance, but the temperature is not always comfortable for the user. Therefore, the temperature set by the user may be set as the target temperature. However, when the outside air temperature and the passenger compartment temperature are both high or low, it takes time to reach the user set temperature even if the user set temperature is set slightly higher or lower and pre-air-conditioning operation is performed. There is.

  In view of the above, an object of the present invention is to provide an air conditioning control device that can quickly reach a user set temperature when performing a pre-air conditioning operation.

  An air conditioning control device of the present invention includes an outside air temperature sensor that detects an outside air temperature, a room temperature sensor that detects a vehicle interior temperature, and a control unit that controls pre-air conditioning operation based on a user set temperature set by a user. When the pre-air-conditioning operation is performed, the control unit determines whether or not the rapid operation is required to quickly bring the vehicle interior temperature to the user set temperature based on the outside air temperature, the vehicle interior temperature, and the user set temperature at the previous air conditioning operation. And the target set temperature for the rapid operation is determined based on the target temperature for the rapid operation set according to the outside air temperature and the user set temperature.

  When the pre-air-conditioning operation is performed when the outside air temperature is high and the vehicle interior temperature is higher than the user set temperature, or when the outside air temperature is low and the vehicle interior temperature is lower than the user set temperature, rapid operation is performed. In rapid operation, when the outside air temperature is high, the target set temperature is set lower than normal, and when the outside air temperature is low, the target set temperature is set higher than normal. The pre-air conditioning operation is performed based on the target set temperature, and the vehicle interior temperature quickly approaches the user set temperature.

  According to the present invention, when the pre-air-conditioning operation is performed, the passenger compartment temperature can be increased to a temperature desired by the user, and a comfortable environment can be realized when the user gets into the vehicle.

The block diagram of the air-conditioning control apparatus of embodiment of this invention Diagram showing air conditioning level criteria Remote engine start flowchart Flow chart for determining the target temperature setting for pre-air conditioning operation

  FIG. 1 shows an air conditioning control device X that controls a vehicle air conditioning device according to an embodiment of the present invention. The vehicle travels by the driving force of the engine 1, and the air conditioner 2 is mounted on the vehicle. The air conditioner 2 includes an air conditioner 3 for cooling the passenger compartment and a heater core 4 for heating the passenger compartment.

  The air conditioner 3 includes a compressor 5, a condenser 6, an expansion valve 7, and an evaporator 8, and these form a refrigeration cycle. The air conditioner 3 has an air conditioning duct connected to a plurality of air outlets formed in the vehicle interior, and the evaporator 8 is disposed in the air conditioning duct. The heater core 4 is disposed downstream of the evaporator 8 in the air conditioning duct. The cooling water of the engine 1 is circulated through the heater core 4, and this cooling water is used as a heat source for heating.

  The air conditioner 2 includes a fan 10 that sucks air into the air conditioning duct from the suction port, a suction port door 11 that opens and closes the suction port, a blower door 12 that opens and closes each blowout port, and cold air that flows from the evaporator 8 to the heater core 4. And an air mix door 13 for adjusting the air volume.

  The air conditioning control device X that controls the air conditioning device 2 has passed through the outside air temperature sensor 20 that detects the outside air temperature, the room temperature sensor 21 that detects the vehicle interior temperature, the solar radiation amount sensor 22 that detects the amount of solar radiation, and the evaporator 8. An evaporator temperature sensor 23 that detects the temperature of the air (temperature after the evaporator), a water temperature sensor 24 that detects the water temperature of the engine cooling water, and a control unit 25 that controls the air conditioner 2 are provided. Detection values of the sensors 20 to 24 are output to the control unit 25. The control unit 25 determines the blowing temperature and the air volume based on the outputs of the sensors 20 to 24 so that the vehicle interior temperature becomes the user set temperature set by the user, and operates the air conditioner 3 and the doors 11 to 13. .

  An engine control device 30 that controls the driving of the engine 1 is provided. The water temperature sensor 24 is connected to the engine control device 30, but the detected value of the water temperature sensor 24 is output to the air conditioning control device X through the engine control device 30. The engine control device 30 has a remote engine start function. When a start signal is transmitted by operating the remote control device 31 such as an electronic key or a remote controller, the engine control device 30 receives the start signal through the communication unit, turns on the vehicle, and starts the engine 1. The engine 1 is idling.

  The engine control device 30 then outputs a start signal to the air conditioning control device X. When receiving the start signal, the control unit 25 of the air conditioning control device X automatically operates the air conditioning device 2 to control the pre-air conditioning operation. The pre-air conditioning operation is performed based on the user set temperature at the previous air conditioning operation. Even if the air conditioner switch is off when the engine is stopped, the pre-air conditioning operation may be automatically performed when the remote engine is started.

  When the pre-air-conditioning operation is performed, if the difference between the outside air temperature and the user set temperature is large, it takes time until the vehicle interior temperature becomes the user set temperature. For example, when the outside air temperature is high, the vehicle interior temperature is also high, and the difference between the vehicle interior temperature and the user set temperature becomes large. Further, when the outside air temperature is low, the vehicle interior temperature is also low, and the difference between the vehicle interior temperature and the user set temperature becomes large. Therefore, in such a situation, rapid operation is performed to quickly bring the passenger compartment temperature to the user set temperature, such as lowering or raising the passenger compartment temperature quickly.

  When performing the pre-air-conditioning operation, the control unit 25 determines whether or not rapid operation is necessary based on the outside air temperature, the passenger compartment temperature, and the user set temperature during the previous air-conditioning operation, and is set according to the outside air temperature. The target temperature for rapid operation is determined from the target temperature for rapid operation and the user set temperature.

  That is, the control unit 25 determines whether to perform rapid operation or normal air conditioning operation based on the outside air temperature, the passenger compartment temperature, and the user set temperature. Normal air conditioning operation is performed based on the user set temperature. The user set temperature is a set temperature at the previous air conditioning operation. In the rapid operation, the air conditioning operation is controlled based on the target set temperature. The target set temperature is set to one of a user set temperature and a predetermined temperature set in advance for rapid operation.

  First, in the pre-air conditioning operation, the pre-air conditioning level is determined according to the outside air temperature. As shown in FIG. 2, the pre-air conditioning level has three stages: a cool-down mode, a warm-up mode, and a standard mode. When the outside air temperature is higher than a first specified temperature, for example, 35 ° C., a cool-down mode for lowering the vehicle interior temperature. When the outside air temperature is lower than the second specified temperature, for example, 5 ° C., for example, Is set to the standard mode when the temperature is not less than the second specified temperature and not more than the first specified temperature.

  Next, the necessity of rapid operation is determined. In the cool down mode, when the vehicle interior temperature is higher than the user set temperature, rapid operation is performed. In the warm-up mode, when the vehicle interior temperature is lower than the user set temperature, rapid operation is performed.

  When performing rapid operation, a target set temperature is determined. As the predetermined temperature in the cool-down mode, a cooling target temperature, for example, 20 ° C. is set in advance. Of the user set temperature and the cooling target temperature, the lower temperature is set as the target set temperature. As the predetermined temperature in the warm-up mode, a heating target temperature, for example, 28 ° C. is set in advance. Of the user set temperature and the heating target temperature, the higher temperature is set as the target set temperature.

  A series of operations in the pre-air conditioning operation will be described with reference to FIGS. When the user operates the remote operation device 31 to perform a remote engine start, the remote operation device 31 transmits a start signal. As shown in FIG. 3, upon receiving the start signal, the engine control device 30 turns on the power and starts the engine 1.

  In addition, the air conditioning control device X is activated, and the control unit 25 reads various setting states and detection values of the sensors. The control unit 25 checks whether the remote engine start has been performed based on the presence or absence of a start signal from the engine control device 30. When there is no start signal, the control unit 25 determines that the engine is started by turning on the start switch, and controls normal air conditioning operation. When the engine is started by the remote engine start, the control unit 25 starts the pre-air conditioning operation.

  As shown in FIG. 4, the control unit 25 determines the pre-air conditioning level based on the outside air temperature. When the outside air temperature is higher than the first specified temperature, the control unit 25 determines that the cool-down mode is set. When the outside air temperature is lower than the second specified temperature, the control unit 25 determines the warm-up mode.

  In the cool-down mode, the control unit 25 determines the necessity of rapid operation and the target set temperature based on the situation inside the passenger compartment. First, the control unit 25 compares the vehicle interior temperature with the user set temperature. Rapid driving is performed when the passenger compartment temperature is higher than the user set temperature. The control unit 25 determines a target set temperature. Of the user set temperature and the cooling target temperature (20 ° C.), the lower temperature is the target set temperature. When the target set temperature is determined, the control unit 25 controls the air conditioner 2 by setting the blowing temperature and the air volume based on the target set temperature. When the rapid operation is performed and the passenger compartment temperature decreases and reaches the user set temperature, the control unit 25 performs a normal air conditioning operation based on the user set temperature. When the vehicle interior temperature is equal to or lower than the user set temperature, there is no need to lower the vehicle interior temperature. The control unit 25 performs the normal air conditioning operation with the user set temperature as the target set temperature.

  In the warm-up mode, the control unit 25 determines the necessity of rapid driving and the target set temperature based on the situation in the passenger compartment. When the passenger compartment temperature is lower than the user set temperature, rapid operation is performed. The control unit 25 determines a target set temperature. Of the user set temperature and the heating target temperature (28 ° C.), the higher temperature is the target set temperature. When the target set temperature is determined, the control unit 25 controls the air conditioner 2 by setting the blowing temperature and the air volume based on the target set temperature. When the rapid operation is performed and the passenger compartment temperature increases and reaches the user set temperature, the control unit 25 performs a normal air conditioning operation based on the user set temperature. When the vehicle interior temperature is equal to or higher than the user set temperature, there is no need to increase the vehicle interior temperature. The control unit 25 performs the normal air conditioning operation with the user set temperature as the target set temperature.

  When the outside air temperature is equal to or higher than the second specified temperature and equal to or lower than the first specified temperature, the control unit 25 determines the standard mode. In the standard mode, the control unit 25 sets the user set temperature to the target set temperature and performs the pre-air conditioning operation by controlling the normal air conditioning operation.

  Thus, in the pre-air-conditioning operation, when the outside air temperature is high and the vehicle interior temperature is high, rapid operation is performed at a low target set temperature, and when the outside air temperature is low and the vehicle interior temperature is low, rapid operation is performed at a high target set temperature. Since the operation is performed, the vehicle interior temperature desired by the user can be accelerated. Thereby, a comfortable environment can be realized when the user gets into the vehicle. In particular, if the difference between the outside air temperature during the previous air conditioning operation and the outside air temperature during the pre air conditioning operation is large, such a rapid operation can change the passenger compartment temperature quickly, which is very useful. It is.

  In addition, this invention is not limited to the said embodiment, Of course, many corrections and changes can be added to the said embodiment within the scope of the present invention. The rapid driving described above may be performed in a hybrid vehicle or an electric vehicle. In the case of these vehicles, a heater or a heat pump is used as the heater core. In these vehicles, an air conditioning switch is provided in the remote control device, and when the air conditioning switch is turned on, a pre-air conditioning operation is performed.

DESCRIPTION OF SYMBOLS 1 Engine 2 Air conditioner 3 Air conditioner 4 Heater core 20 Outside temperature sensor 21 Room temperature sensor 22 Solar radiation amount sensor 23 Evaporator temperature sensor 24 Water temperature sensor 25 Control part 30 Engine control apparatus 31 Remote operation apparatus X Air conditioning control apparatus

Claims (1)

An air conditioning control device including an outside air temperature sensor that detects an outside air temperature, a room temperature sensor that detects a vehicle interior temperature, and a control unit that controls pre-air conditioning operation based on a user set temperature set by a user, When performing the pre-air conditioning operation, the control unit determines whether or not the rapid operation is required to quickly bring the vehicle interior temperature to the user set temperature based on the outside air temperature, the vehicle interior temperature, and the user set temperature at the previous air conditioning operation. An air conditioning control apparatus that determines and sets a target set temperature for rapid operation based on a target temperature and a user set temperature for performing a rapid operation set according to an outside air temperature.

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