Vehicle air conditioner heating control method, device, medium, equipment and vehicle

Abstract

The present disclosure relates to a vehicle air conditioner heating control method, device, medium, equipment and vehicle, aiming to solve the problems of slow heating response speed and high energy consumption of the vehicle air conditioner heating, including: in response to the vehicle air conditioner heating start operation, determining the PTC target heating temperature; controlling the PTC to heat the intake air of the passenger compartment according to the PTC target heating temperature; collecting the warm air temperature of the intake air in the vehicle air conditioner pipeline in real time, and calculating the difference between the PTC target heating temperature and the warm air temperature; if the difference is less than the target difference, controlling the compressor to heat the intake air of the passenger compartment; if the warm air temperature reaches the PTC target heating temperature, controlling the PTC to exit the PTC heating. In this way, based on starting the PTC heating first, taking advantage of the characteristics of large PTC power and fast response, quickly heating the intake air of the passenger compartment, and then starting the compressor heating, reducing the influence of the cold air in the compressor heating circuit on the PTC heating, and reducing the heating energy consumption.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle air - conditioning control, and particularly to a vehicle - mounted air - conditioning heating control method, device, medium, equipment and vehicle. Background Art

[0002] To reduce the heating energy consumption of the passenger compartment of new - energy vehicles in autumn and winter, new - energy vehicles begin to be equipped with heat - pump air - conditioning technology, that is, combining the PTC heating mode with the compressor heat - pump heating mode to achieve heating of the passenger compartment of new - energy vehicles. Generally, according to different types of vehicles, different heating architectures are adopted to achieve heating of the passenger compartment according to different heating powers required under different working conditions.

[0003] In the related art, the heating control strategy of the vehicle - mounted air - conditioner is to simultaneously operate the heat - pump heating and PTC heating. As the difference between the in - vehicle temperature and the air - conditioner set temperature decreases, the PTC heating power is reduced. And when the difference between the in - vehicle temperature and the air - conditioner set temperature reaches a preset temperature difference, the PTC heating is stopped. After the PTC heating exits the heating, based on the calibrated compressor heating power under different load conditions, the compressor is controlled to heat the intake air of the vehicle passenger compartment in the heat - pump mode. Summary of the Invention

[0004] The purpose of the present disclosure is to provide a vehicle - mounted air - conditioning heating control method, device, medium, equipment and vehicle to solve the problems of slow heating response speed and high energy consumption of the vehicle - mounted air - conditioner in the related art.

[0005] To achieve the above purpose, in the first aspect of the embodiments of the present disclosure, a vehicle - mounted air - conditioning heating control method is provided. The method includes:

[0006] In response to an operation to turn on the vehicle - mounted air - conditioning heating, determine the PTC target heating temperature of the vehicle - mounted air - conditioner;

[0007] Control the PTC of the vehicle - mounted air - conditioner to heat the intake air of the vehicle passenger compartment according to the PTC target heating temperature;

[0008] Real - time collect the warm - air temperature of the intake air in the vehicle air - conditioning pipeline, and calculate the difference between the PTC target heating temperature and the temperature of the warm air;

[0009] If the difference is less than the target difference, control the compressor of the vehicle - mounted air - conditioner to heat the intake air of the vehicle passenger compartment, where the target difference is determined according to the difference between the ambient temperature and the PTC target heating temperature;

[0010] When the warm - air temperature reaches the PTC target heating temperature, control the PTC of the vehicle - mounted air - conditioner to exit the PTC heating.

[0011] Optionally, before heating the intake air of the vehicle occupant compartment by the PTC of the vehicle air conditioner according to the PTC target heating temperature, it includes:

[0012] Calculating the target power of the PTC heating according to the PTC target heating temperature;

[0013] Determining that the target power is greater than the minimum operating power of the PTC heating;

[0014] The method further includes: when the target power is less than or equal to the minimum operating power of the PTC heating, controlling the compressor of the vehicle air conditioner to heat the intake air of the vehicle occupant compartment.

[0015] Optionally, the controlling the compressor of the vehicle air conditioner to heat the intake air of the vehicle occupant compartment if the difference is less than the target difference includes:

[0016] If the difference is less than the target difference, calculating the compressor target heating temperature of the compressor, where the compressor target heating temperature is higher than the PTC target heating temperature;

[0017] Determining the compressor speed threshold according to the difference between the compressor target heating temperature and the warm air temperature, the speed threshold is used to limit the upper limit of the speed of the compressor during the process of heating the intake air of the vehicle occupant compartment, and the speed threshold is inversely related to the difference between the compressor target heating temperature and the warm air temperature;

[0018] Controlling the compressor of the vehicle air conditioner to heat the intake air of the vehicle occupant compartment according to the speed threshold.

[0019] Optionally, the determining the PTC target heating temperature of the vehicle air conditioner includes:

[0020] Determining the PTC target heating temperature of the vehicle air conditioner according to the ambient temperature, the occupant compartment temperature, and the target heating temperature set by the driver and passengers, where the PTC target heating temperature is lower than the target heating temperature.

[0021] Optionally, the method includes: after heating the intake air of the vehicle occupant compartment by the PTC of the vehicle air conditioner according to the PTC target heating temperature, controlling the compressor of the vehicle air conditioner to start to preheat the compressor heating circuit;

[0022] The controlling the compressor of the vehicle air conditioner to heat the intake air of the vehicle occupant compartment if the difference is less than the target difference includes:

[0023] When the preheating of the compression mechanism thermal circuit is completed, if the difference is less than the target difference, control the compressor of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment.

[0024] In a second aspect of the embodiments of the present disclosure, a vehicle air conditioner heating control device is provided, and the device includes:

[0025] A determination module, configured to determine the PTC target heating temperature of the vehicle air conditioner in response to an operation of turning on the vehicle air conditioner for heating;

[0026] A first control module, configured to control the PTC of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment according to the PTC target heating temperature;

[0027] A first calculation module, configured to collect the warm air temperature of the intake air in the vehicle air conditioner pipeline in real time, and calculate the difference between the PTC target heating temperature and the warm air temperature;

[0028] A second control module, configured to, if the difference is less than the target difference, control the compressor of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment, where the target difference is determined according to the difference between the environmental temperature, the temperature on the leeward side of the warm air core, and the PTC target heating temperature;

[0029] A third control module, configured to control the PTC of the vehicle air conditioner to exit the PTC heating when the warm air temperature reaches the PTC target heating temperature.

[0030] Optionally, the device includes: a second calculation module, configured to:

[0031] Before controlling the PTC of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment according to the PTC target heating temperature, calculate the target power of the PTC heating according to the PTC target heating temperature;

[0032] Determine that the target power is greater than the minimum operating power of the PTC heating;

[0033] When the target power is less than or equal to the minimum operating power of the PTC heating, control the compressor of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment.

[0034] Optionally, the second control module is configured to:

[0035] If the difference is less than the target difference, calculate the compressor target heating temperature of the compressor, where the compressor target heating temperature is higher than the PTC target heating temperature;

[0036] Determine the rotational speed threshold of the compressor according to the difference between the target heating temperature of the compressor and the warm air temperature. The rotational speed threshold is used to limit the upper limit of the rotational speed of the compressor during the process of heating the intake air of the vehicle's passenger compartment, and the rotational speed threshold is inversely correlated with the difference between the target heating temperature of the compressor and the warm air temperature;

[0037] Control the compressor of the vehicle-mounted air conditioner to heat the intake air of the vehicle's passenger compartment according to the rotational speed threshold.

[0038] Optionally, the determining module is configured to determine the PTC target heating temperature of the vehicle-mounted air conditioner according to the ambient temperature, the passenger compartment temperature, and the target heating temperature set by the driver and passengers, wherein the PTC target heating temperature is lower than the target heating temperature.

[0039] Optionally, the device includes: a fourth control module, configured to, after controlling the PTC of the vehicle-mounted air conditioner to heat the intake air of the vehicle's passenger compartment according to the PTC target heating temperature, control the compressor of the vehicle-mounted air conditioner to start to preheat the compressor heating circuit;

[0040] The second control module is specifically configured to, when the preheating of the compressor heating circuit is completed, if the difference is less than the target difference, control the compressor of the vehicle-mounted air conditioner to heat the intake air of the vehicle's passenger compartment.

[0041] In a third aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the steps of the vehicle-mounted air conditioner heating control method described in any one of the first aspects are implemented.

[0042] In a fourth aspect of the embodiments of the present disclosure, a vehicle controller is provided, including:

[0043] A memory, on which a computer program is stored;

[0044] A processor, configured to execute the computer program in the memory to implement the steps of the vehicle-mounted air conditioner heating control method described in any one of the first aspects.

[0045] In a fifth aspect of the embodiments of the present disclosure, a vehicle is provided, including the vehicle controller described in the fourth aspect.

[0046] Through the above technical solutions, at least the following technical effects can be achieved:

[0047] By responding to the operation of turning on the heating of the vehicle-mounted air conditioner, determine the PTC target heating temperature of the vehicle-mounted air conditioner. Control the PTC of the vehicle-mounted air conditioner to heat the intake air of the vehicle's passenger compartment according to the PTC target heating temperature. Real-time collect the warm air temperature of the intake air in the vehicle air-conditioning pipeline, and calculate the difference between the PTC target heating temperature and the warm air temperature. If the difference is less than the target difference, control the compressor of the vehicle-mounted air conditioner to heat the intake air of the vehicle's passenger compartment. If the warm air temperature reaches the PTC target heating temperature, control the PTC of the vehicle-mounted air conditioner to exit the PTC heating. In this way, based on starting the PTC heating first, since the PTC has a large power and a fast heating response, the intake air of the passenger compartment can be heated quickly. Then start the compressor heating, which can reduce the influence of the cold air in the compressor heating circuit on the PTC heating and reduce the heating energy consumption. Further, when the PTC heating temperature is reached, exiting the PTC heating with a large power and only using the compressor heating with a small power can also reduce the heating energy consumption, which is beneficial to the vehicle's endurance.

[0048] Other features and advantages of the present disclosure will be described in detail in the following specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:

[0050] Figure 1 is a flowchart of a vehicle-mounted air conditioner heating control method shown according to an exemplary embodiment.

[0051] Figure 2 is a layout schematic diagram of a vehicle-mounted air conditioner shown according to an exemplary embodiment.

[0052] Figure 3 is a flowchart of implementing Figure 1 step S104 in

[0053] Figure 4 is a block diagram of a vehicle-mounted air conditioner heating control device shown according to an exemplary embodiment.

[0054] Figure 5 is a block diagram of an electronic device 700 shown according to an exemplary embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0055] The following will describe the specific embodiments of the present disclosure in detail with reference to the drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0056] It should be noted that in the present disclosure, terms such as "first" and "second" in the specification, claims, and drawings are used to distinguish similar objects, and do not necessarily need to be understood as describing a specific order or sequence.

[0057] In related scenarios, the vehicle-mounted air conditioner simultaneously operates the compressor for heating and PTC heating. Since the heating response speed of the compressor is relatively slow, the heating of the cold air in the compressor heating circuit is also slow, while the power of PTC heating is large and the heating response speed is fast. The air outlet of the compressor heating circuit and the air outlet of the PTC heating circuit are the same air outlet. In this way, at the initial stage of heating, the cold air in the compressor heating circuit will reduce the temperature of the hot air generated by PTC heating, not only resulting in a relatively slow heating response speed of the entire vehicle-mounted air conditioner, but also causing high energy consumption, which is not conducive to the cruising of the vehicle.

[0058] In view of this, the present disclosure provides a vehicle-mounted air conditioner heating control method, device, medium, equipment, and vehicle to solve the problems existing in the related art, and while improving the heating response speed of the vehicle-mounted air conditioner, reducing the energy consumption during the heating process of the vehicle-mounted air conditioner, and thus being conducive to ensuring the cruising range of the vehicle.

[0059] Figure 1 is a flowchart showing a vehicle-mounted air conditioner heating control method according to an exemplary embodiment. Refer to Figure 1 as shown, the method includes the following steps.

[0060] In step S101, in response to an operation to turn on the heating of the vehicle-mounted air conditioner, determine the PTC target heating temperature of the vehicle-mounted air conditioner.

[0061] In step S102, control the PTC of the vehicle-mounted air conditioner to heat the intake air of the vehicle's passenger compartment according to the PTC target heating temperature.

[0062] In step S103, real-time collect the warm air temperature of the intake air in the vehicle air conditioner pipeline, and calculate the difference between the PTC target heating temperature and the warm air temperature.

[0063] In step S104, if the difference is less than the target difference, control the compressor of the vehicle-mounted air conditioner to heat the intake air of the vehicle's passenger compartment.

[0064] Among them, the target difference is determined according to the difference between the ambient temperature and the PTC target heating temperature.

[0065] In step S105, when the warm air temperature reaches the PTC target heating temperature, control the PTC of the vehicle-mounted air conditioner to exit PTC heating.

[0066] First, the layout of the vehicle air conditioner in this disclosure is described, as well as the terms used. The vehicle air conditioner is a vehicle air conditioning system that realizes the function of heating the passenger compartment of the vehicle by switching different modes and circuits.

[0067] See Figure 2 The schematic layout diagram of a vehicle air conditioner shown. Among them, the compressor is a compression device and is the operating power of the heating circuit of the vehicle air conditioner compressor. Optionally, the compressor can be an electric compressor. Under the power action of the compressor, the refrigerant absorbs heat energy when passing through the outdoor heat exchanger. After being heated by the work of the compressor, when passing through the indoor condenser, the heat energy carried is dissipated to the passenger compartment. The indoor condenser is a part of the heating circuit of the compressor and is a refrigerant circulation heat dissipation device. When the refrigerant passes through the indoor condenser, under the action of the blower, when the air to be heated passes through the indoor condenser, the heat carried by the refrigerant is transferred to the air to be heated, so that the air blown into the passenger compartment is heated. The heated air enters the air conditioning duct through the temperature control damper and the mode damper to realize heating of the passenger compartment.

[0068] Among them, PTC is a high-voltage heating device for vehicle air conditioners, an electrical device that converts the high-voltage electrical energy of the whole vehicle into heat energy. The water in the PTC heating circuit is heated by the heater, and when the heated water passes through the heater core, the heat energy carried is dissipated to the passenger compartment. The heater core is a water circulation heat dissipation device. Under the action of the blower, when the air to be heated passes through the heater core, the heat carried by the heated water is transferred to the air to be heated, so that the air blown into the passenger compartment is heated. The heated air enters the air conditioning duct through the temperature control damper and the mode damper to realize heating of the passenger compartment.

[0069] Specifically, PI calculation is performed according to the PTC target heating temperature and the warm air temperature of the intake air in the vehicle air conditioning pipeline, to control the PTC of the vehicle air conditioner to heat the intake air of the passenger compartment of the vehicle, and the temperature sensor T arranged on the leeward side of the heater core is used to collect the warm air temperature of the intake air of the passenger compartment in real time.

[0070] It should be noted that the temperature sensor T arranged on the leeward side of the heater core can collect the warm air temperature of the intake air of the passenger compartment after being heated by the heater core in real time when heating the intake air of the passenger compartment through PTC; when heating the passenger compartment through PTC and the compressor, it can collect the warm air temperature of the intake air of the passenger compartment after being heated by the heater core in real time. When heating the passenger compartment through the compressor, it can collect the warm air temperature of the intake air of the passenger compartment after being heated by the indoor condenser in real time.

[0071] Specifically, the target difference is stored in the vehicle air conditioner controller through typical calibration. During actual use, the target difference is determined by looking up the table according to the difference between the ambient temperature and the PTC target heating temperature.

[0072] Further, the target difference is positively correlated with the difference between the ambient temperature and the PTC target heating temperature. For example, when the ambient temperature is 5°C and the PTC target heating temperature is 18°C, the target difference is 6; when the ambient temperature is 8°C and the PTC target heating temperature is 18°C, the target difference is 5; when the ambient temperature is 5°C and the PTC target heating temperature is 22°C, the target difference is 8.

[0073] Optionally, the target difference is also negatively correlated with the ambient temperature. For example, when the ambient temperature is 5°C and the PTC target heating temperature is 18°C, the target difference is 6; when the ambient temperature is -5°C and the PTC target heating temperature is 18°C, the target difference is 8. That is, when the difference between the ambient temperature and the PTC target heating temperature is the same, the lower the ambient temperature, the greater the target difference.

[0074] Optionally, when only the compressor is used to heat the intake air of the passenger compartment, if the compressor runs at the maximum load power and still cannot meet the heating demand, the PTC heating can be restarted.

[0075] During specific implementation, during the process of controlling the compressor of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment, the PTC heating is automatically exited according to the PI algorithm. When the warm air temperature reaches the PTC target heating temperature or above, the PTC heating is completely exited.

[0076] The above technical solution determines the PTC target heating temperature of the vehicle air conditioner in response to the operation of turning on the heating of the vehicle air conditioner, controls the PTC of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment according to the PTC target heating temperature, real-time collects the warm air temperature of the intake air in the vehicle air conditioner pipeline, and calculates the difference between the PTC target heating temperature and the warm air temperature. If the difference is less than the target difference, the compressor of the vehicle air conditioner is controlled to heat the intake air of the vehicle's passenger compartment. If the warm air temperature reaches the PTC target heating temperature, the PTC of the vehicle air conditioner is controlled to exit the PTC heating. In this way, based on starting the PTC heating first, since the PTC power is large and the heating response is fast, the intake air of the passenger compartment can be heated quickly. Then, starting the compressor heating can reduce the influence of the cold air in the compressor heating circuit on the PTC heating and reduce the heating energy consumption. Further, when the PTC heating temperature is reached, exiting the PTC heating with a large power and only using the compressor heating with a small power can also reduce the heating energy consumption, which is beneficial to the vehicle's endurance.

[0077] Optionally, before step S102 of controlling the PTC of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment according to the PTC target heating temperature, it includes:

[0078] Calculate the target power of PTC heating according to the PTC target heating temperature;

[0079] Determine that the target power is greater than the minimum operating power of PTC heating;

[0080] The method further includes: when the target power is less than or equal to the minimum operating power of PTC heating, controlling the compressor of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment.

[0081] Exemplarily, the minimum operating power of PTC heating is 1 kw. When the target power is greater than 1 kw, control the PTC of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment according to the PTC target heating temperature. When the target power is less than or equal to 1 kw, based on typical calibration, control the compressor of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment according to the current operating conditions of the vehicle.

[0082] Optionally, Figure 3 is a flowchart showing an implementation according to an exemplary one Figure 1 In step S104 of the flowchart, if the difference is less than the target difference, then controlling the compressor of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment includes:

[0083] In step S1041, if the difference is less than the target difference, calculate the compressor target heating temperature of the compressor.

[0084] Wherein, the compressor target heating temperature is higher than the PTC target heating temperature.

[0085] In step S1042, determine the compressor speed threshold according to the difference between the compressor target heating temperature and the warm air temperature.

[0086] Wherein, the speed threshold is used to limit the upper limit value of the speed of the compressor during the process of heating the intake air of the vehicle's passenger compartment, and the speed threshold is inversely related to the difference between the compressor target heating temperature and the warm air temperature.

[0087] In step S1043, control the compressor of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment according to the speed threshold.

[0088] For example, when the warm air temperature of the intake air in the passenger compartment is 17°C and the target heating temperature of the compressor is 22°C, that is, the difference between the target heating temperature of the compressor and the warm air temperature of the intake air in the passenger compartment is 5, the compressor speed threshold is 300 revolutions per second; as the compressor heating participates in heating the warm air of the intake air in the passenger compartment, the temperature of the warm air of the intake air in the passenger compartment gradually rises. When the warm air temperature of the intake air in the passenger compartment reaches 18°C, that is, the difference between the target heating temperature of the compressor and the warm air temperature of the intake air in the passenger compartment is 4, the compressor speed threshold increases to 400 revolutions per second; further, when the warm air temperature of the intake air in the passenger compartment reaches 19°C, that is, the difference between the target heating temperature of the compressor and the warm air temperature of the intake air in the passenger compartment is 3, the compressor speed threshold increases to 500 revolutions per second.

[0089] By adopting the above technical solution, based on the difference between the target heating temperature and the warm air temperature, the speed of the compressor is limited, which can prevent the compressor speed from rising too fast, resulting in too low suction port pressure of the compressor, causing damage to the compressor and the pipeline, and improving the protection of the vehicle air conditioning system and the compressor.

[0090] Optionally, in step S101, the determining the PTC target heating temperature of the vehicle air conditioner includes:

[0091] Determining the PTC target heating temperature of the vehicle air conditioner according to the ambient temperature, the passenger compartment temperature, and the target heating temperature set by the driver and passengers, wherein the PTC target heating temperature is lower than the target heating temperature.

[0092] Specifically, the PTC target heating temperature is lower than the target heating temperature, the compressor target heating temperature is higher than the PTC target heating temperature, and the compressor target heating temperature is higher than the target heating temperature.

[0093] Optionally, the method includes: after controlling the PTC of the vehicle air conditioner to heat the intake air of the vehicle passenger compartment according to the PTC target heating temperature, controlling the compressor of the vehicle air conditioner to start to preheat the compressor heating circuit;

[0094] In step S104, the if the difference is less than the target difference, then controlling the compressor of the vehicle air conditioner to heat the intake air of the vehicle passenger compartment includes:

[0095] When the preheating of the compressor heating circuit is completed, if the difference is less than the target difference, then controlling the compressor of the vehicle air conditioner to heat the intake air of the vehicle passenger compartment.

[0096] Specifically, the preheating temperature of the compressor circuit is determined according to the ambient temperature, and the preheating speed of the compressor is determined according to the preheating temperature. Furthermore, the compressor of the vehicle air conditioner is controlled to start according to the preheating speed, so as to preheat the heating circuit of the compressor.

[0097] The temperature of the compressor circuit is collected by a temperature sensor arranged in the compressor circuit. When the temperature of the compressor circuit reaches the preheating temperature, it is determined that the heating circuit of the compressor is preheated.

[0098] Optionally, the target preheating duration of the compressor circuit is determined according to the ambient temperature, and the target preheating duration is positively correlated with the ambient temperature. The lower the ambient temperature, the longer the target preheating duration. When the preheating duration reaches the target preheating duration, it is determined that the heating circuit of the compressor is preheated.

[0099] By adopting the above technical solution, the compressor circuit can be preheated, avoiding the cold air in the heating circuit of the compressor from entering the passenger compartment when the compressor starts to participate in the intake air heating of the passenger compartment, resulting in the weakening of the intake air heating effect of the passenger compartment. Furthermore, the operation stability of the vehicle air conditioner and the heating comfort of the passenger compartment are improved, and at the same time, the heating power consumption of the vehicle air conditioner can be reduced.

[0100] Based on the same inventive concept, the present disclosure also provides a vehicle air conditioner heating control device 400 for executing the steps of the vehicle air conditioner heating control method provided in the above method embodiment. The device 400 can implement the vehicle air conditioner heating control method in a software, hardware or a combination of both ways. Figure 4 is a block diagram of a vehicle air conditioner heating control device 400 shown according to an exemplary embodiment, as Figure 4 shown, the device 400 includes: a determination module 410, a first control module 420, a first calculation module 430, a second control module 440, and a third control module 450.

[0101] Among them, the determination module 410 is used to determine the PTC target heating temperature of the vehicle air conditioner in response to the operation of turning on the vehicle air conditioner heating;

[0102] The first control module 420 is used to control the PTC of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment according to the PTC target heating temperature;

[0103] The first calculation module 430 is used to collect the warm air temperature of the intake air in the vehicle air conditioner pipeline in real time and calculate the difference between the PTC target heating temperature and the warm air temperature;

[0104] A second control module 440, configured to, if the difference is less than a target difference, control a compressor of the vehicle air conditioner to heat the intake air of the vehicle occupant compartment, where the target difference is determined according to the difference between the ambient temperature and the PTC target heating temperature;

[0105] A third control module 450, configured to, when the warm air temperature reaches the PTC target heating temperature, control the PTC of the vehicle air conditioner to exit PTC heating.

[0106] Based on the above device, PTC heating is started first. Since the PTC power is large and the heating response is fast, the intake air of the occupant compartment can be heated quickly. Then, the compressor heating is started, which can reduce the influence of cold air in the compressor heating circuit on PTC heating and reduce the heating energy consumption. Further, when the PTC heating temperature is reached, the PTC heating with a large power is exited, and only the compressor heating with a small power is used, which can also reduce the heating energy consumption, thus being beneficial to the vehicle endurance.

[0107] Optionally, the device includes: a second calculation module, configured to:

[0108] Before controlling the PTC of the vehicle air conditioner to heat the intake air of the vehicle occupant compartment according to the PTC target heating temperature, calculate the target power of the PTC heating according to the PTC target heating temperature;

[0109] Determine that the target power is greater than the minimum operating power of the PTC heating;

[0110] In the case where the target power is less than or equal to the minimum operating power of the PTC heating, control the compressor of the vehicle air conditioner to heat the intake air of the vehicle occupant compartment.

[0111] Optionally, the second control module 440 is configured to:

[0112] If the difference is less than the target difference, calculate the compressor target heating temperature of the compressor, where the compressor target heating temperature is higher than the PTC target heating temperature;

[0113] Determine the compressor speed threshold according to the difference between the compressor target heating temperature and the warm air temperature, where the speed threshold is used to limit the upper limit value of the speed of the compressor during the process of heating the intake air of the vehicle occupant compartment, and the speed threshold is inversely correlated with the difference between the compressor target heating temperature and the warm air temperature;

[0114] Control the compressor of the vehicle air conditioner to heat the intake air of the vehicle occupant compartment according to the speed threshold.

[0115] Optionally, the determining module 410 is configured to determine the PTC target heating temperature of the vehicle-mounted air conditioner according to the ambient temperature, the temperature of the passenger compartment, and the target heating temperature set by the driver and passengers, where the PTC target heating temperature is lower than the target heating temperature.

[0116] Optionally, the device includes: a fourth control module, configured to, after heating the intake air of the passenger compartment of the vehicle by the PTC of the vehicle-mounted air conditioner according to the PTC target heating temperature, control the compressor of the vehicle-mounted air conditioner to start to preheat the compressor heating circuit;

[0117] The second control module 440 is specifically configured to, when the preheating of the compressor heating circuit is completed, if the difference is less than the target difference, control the compressor of the vehicle-mounted air conditioner to heat the intake air of the passenger compartment of the vehicle.

[0118] Regarding the device in the above embodiments, the specific manners in which each module performs operations have been described in detail in the embodiments related to the method, and will not be elaborated here.

[0119] In addition, it should be noted that, for the convenience and brevity of description, the embodiments described in the specification are all preferred embodiments, and the parts involved therein are not necessarily essential to the present invention. For example, the second control module 440 and the third control module 450 may be independent devices or the same device in specific implementations, and the present disclosure does not make any limitations thereto.

[0120] The embodiments of the present disclosure further provide a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps of the vehicle-mounted air conditioner heating control method described in any one of the above are implemented.

[0121] The embodiments of the present disclosure further provide an electronic device, which can be configured as a vehicle-mounted air conditioner controller, including:

[0122] A memory, on which a computer program is stored;

[0123] A processor, configured to execute the computer program in the memory to implement the steps of the vehicle-mounted air conditioner heating control method described in any one of the above.

[0124] The embodiments of the present disclosure further provide a vehicle, including the electronic device or the vehicle-mounted air conditioner heating control device described above.

[0125] Figure 5 is a block diagram of an electronic device 700 shown according to an exemplary embodiment. The electronic device 700 can be configured as a vehicle-mounted air conditioner controller, such as Figure 5As shown, the electronic device 700 may include: a processor 701 and a memory 702. The electronic device 700 may also include one or more of a multimedia component 703, an input / output (I / O) interface 704, and a communication component 705.

[0126] Among them, the processor 701 is used to control the overall operation of the electronic device 700 to complete all or part of the steps in the above vehicle air conditioner heating control method. The memory 702 is used to store various types of data to support the operation of the electronic device 700. These data may include, for example, instructions for any application or method operating on the electronic device 700, and application-related data. The memory 702 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic memory, flash memory, a magnetic disk, or an optical disc. The I / O interface 704 provides an interface between the processor 701 and other interface modules. The communication component 705 is used for wired or wireless communication between the electronic device 700 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IoT, eMTC, or other 5G, etc., or a combination of one or several of them, is not limited herein. Therefore, the corresponding communication component 705 may include: a Wi-Fi module, a Bluetooth module, an NFC module, etc.

[0127] In an exemplary embodiment, the electronic device 700 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components, and is used to execute the above-mentioned vehicle air conditioner heating control method.

[0128] In another exemplary embodiment, a computer-readable storage medium including program instructions is further provided. When the program instructions are executed by a processor, the steps of the above-mentioned vehicle air conditioner heating control method are implemented. For example, the computer-readable storage medium may be the above-mentioned memory 702 including program instructions, and the above-mentioned program instructions may be executed by the processor 701 of the electronic device 700 to complete the above-mentioned vehicle air conditioner heating control method.

[0129] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0130] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination manners.

[0131] In addition, any combination can be made between different embodiments of the present disclosure as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A method for controlling the heating of a vehicle air conditioner, characterized in that, the method includes: In response to the operation of turning on the heating of the vehicle air conditioner, determining the PTC target heating temperature of the vehicle air conditioner; Controlling the PTC of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment according to the PTC target heating temperature; Real-time collecting the warm air temperature of the intake air in the vehicle air-conditioning pipeline, and calculating the difference between the PTC target heating temperature and the warm air temperature; If the difference is less than the target difference, controlling the compressor of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment, where the target difference is determined according to the difference between the ambient temperature and the PTC target heating temperature; When the warm air temperature reaches the PTC target heating temperature, controlling the PTC of the vehicle air conditioner to exit PTC heating; The step of if the difference is less than the target difference, controlling the compressor of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment, includes: If the difference is less than the target difference, calculating the compressor target heating temperature of the compressor, where the compressor target heating temperature is higher than the PTC target heating temperature; Determining the compressor speed threshold according to the difference between the compressor target heating temperature and the warm air temperature, the speed threshold is used to limit the upper limit of the speed of the compressor during the process of heating the intake air of the vehicle's passenger compartment, and the speed threshold is inversely related to the difference between the compressor target heating temperature and the warm air temperature; Controlling the compressor of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment according to the speed threshold.

2. The method according to claim 1, characterized in that, Before controlling the PTC of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment according to the PTC target heating temperature, it includes: Calculating the target power of the PTC heating according to the PTC target heating temperature; Determining that the target power is greater than the minimum operating power of the PTC heating; The method further includes: when the target power is less than or equal to the minimum operating power of the PTC heating, controlling the compressor of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment.

3. The method according to claim 1, characterized in that, The step of determining the PTC target heating temperature of the vehicle air conditioner includes: Determining the PTC target heating temperature of the vehicle air conditioner according to the ambient temperature, the passenger compartment temperature, and the target heating temperature set by the driver and passengers, where the PTC target heating temperature is lower than the target heating temperature.

4. The method according to any one of claims 1-3, characterized in that, The method includes: after controlling the PTC of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment according to the PTC target heating temperature, controlling the compressor of the vehicle air conditioner to start to preheat the compressor heating circuit; The step of if the difference is less than the target difference, controlling the compressor of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment, includes: When the preheating of the compression mechanism thermal circuit is completed, if the difference is less than the target difference, control the compressor of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment.

5. A vehicle air conditioner heating control device, characterized in that, the device includes: a determination module, configured to determine the PTC target heating temperature of the vehicle air conditioner in response to an operation to turn on the vehicle air conditioner heating; a first control module, configured to control the PTC of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment according to the PTC target heating temperature; a first calculation module, configured to collect in real time the warm air temperature of the intake air in the vehicle air conditioner pipeline and calculate the difference between the PTC target heating temperature and the warm air temperature; a second control module, configured to, if the difference is less than the target difference, control the compressor of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment, where the target difference is determined according to the difference between the ambient temperature and the PTC target heating temperature; a third control module, configured to, when the warm air temperature reaches the PTC target heating temperature, control the PTC of the vehicle air conditioner to exit PTC heating; the second control module is further configured to: if the difference is less than the target difference, calculate the compressor target heating temperature of the compressor, where the compressor target heating temperature is higher than the PTC target heating temperature; determine the compressor speed threshold according to the difference between the compressor target heating temperature and the warm air temperature, where the speed threshold is used to limit the upper limit value of the speed of the compressor during the process of heating the intake air of the vehicle's passenger compartment, and the speed threshold is inversely correlated with the difference between the compressor target heating temperature and the warm air temperature; control the compressor of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment according to the speed threshold.

6. The device according to claim 5, characterized in that, the device includes: a second calculation module, configured to: before controlling the PTC of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment according to the PTC target heating temperature, calculate the target power of the PTC heating according to the PTC target heating temperature; determine that the target power is greater than the minimum operating power of the PTC heating; in the case where the target power is less than or equal to the minimum operating power of the PTC heating, control the compressor of the vehicle air conditioner to heat the intake air of the vehicle's passenger compartment.

7. A computer-readable storage medium, on which a computer program is stored, characterized in that, when the program is executed by a processor, the steps of the method described in any one of claims 1-4 are implemented.

8. An electronic device, characterized in that, includes: a memory, on which a computer program is stored; a processor, configured to execute the computer program in the memory to implement the steps of the method described in any one of claims 1-4.

9. A vehicle, characterized in that, includes the electronic device described in claim 8.

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