CN112977004A - Heating control method, device, medium, equipment and vehicle of vehicle-mounted air conditioner - Google Patents
Heating control method, device, medium, equipment and vehicle of vehicle-mounted air conditioner Download PDFInfo
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- CN112977004A CN112977004A CN202110282879.3A CN202110282879A CN112977004A CN 112977004 A CN112977004 A CN 112977004A CN 202110282879 A CN202110282879 A CN 202110282879A CN 112977004 A CN112977004 A CN 112977004A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
- B60H1/2218—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters controlling the operation of electric heaters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00807—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being a specific way of measuring or calculating an air or coolant temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00899—Controlling the flow of liquid in a heat pump system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
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- Sustainable Energy (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The utility model relates to a vehicle-mounted air conditioner heating control method, device, medium, equipment and vehicle to solve the problem that vehicle-mounted air conditioner heating response speed is slow and the energy consumption is higher, include: determining a PTC target heating temperature in response to a heating start operation of a vehicle-mounted air conditioner; controlling the PTC to heat the air inlet of the passenger compartment according to the PTC target heating temperature; collecting the temperature of inlet air in a vehicle air conditioning pipeline in real time, and calculating the difference between the PTC target heating temperature and the temperature of the inlet air; if the difference is smaller than the target difference, controlling the compressor to heat the air inlet of the passenger compartment; and if the temperature of the warm air reaches the PTC target heating temperature, controlling the PTC to quit the PTC heating. Therefore, based on the starting of the PTC heating, the characteristics of high PTC power and quick response are utilized to quickly intake air to the passenger compartment for heating, and then the compressor is started for heating, so that the influence of cold air in a heating loop of the compressor on the PTC heating is reduced, and the heating energy consumption is reduced.
Description
Technical Field
The disclosure relates to the technical field of vehicle air conditioner control, in particular to a heating control method, device, medium, equipment and vehicle for a vehicle-mounted air conditioner.
Background
In order to reduce the heating energy consumption of the passenger compartment of the new energy vehicle in autumn and winter, the new energy vehicle starts to carry a heat pump air conditioning technology, namely, a PTC heating mode and a compressor heat pump heating mode are combined to realize the heating of the passenger compartment of the new energy vehicle. Generally, according to different types of vehicles, different heating powers required to be met under different working conditions are different, and heating of a passenger compartment is realized by adopting different heating frameworks.
In the related technology, the heating control strategy of the vehicle-mounted air conditioner is to simultaneously operate a heat pump for heating and a PTC for heating, the PTC heating power is reduced along with the reduction of the difference value between the temperature in the vehicle and the set temperature of the air conditioner, the PTC heating is stopped when the difference value between the temperature in the vehicle and the set temperature of the air conditioner reaches the preset temperature difference, and the compressor is controlled to realize the air inlet heating of the passenger compartment of the vehicle in a heat pump mode based on the heating power of the compressor calibrated under different load working conditions after the PTC heating is stopped.
Disclosure of Invention
The invention aims to provide a heating control method, a heating control device, a heating control medium, heating control equipment and a vehicle of a vehicle-mounted air conditioner, and aims to solve the problems that the heating response speed of the vehicle-mounted air conditioner is low and the energy consumption is high in the related technology.
In order to achieve the above object, in a first aspect of the embodiments of the present disclosure, there is provided a heating control method for an on-vehicle air conditioner, the method including:
determining a PTC target heating temperature of the vehicle-mounted air conditioner in response to an operation of the vehicle-mounted air conditioner heating on;
controlling the PTC of the vehicle-mounted air conditioner to heat the air inlet of the passenger compartment of the vehicle according to the PTC target heating temperature;
collecting the temperature of inlet hot air in the vehicle air conditioning pipeline in real time, and calculating the difference between the PTC target heating temperature and the temperature of the hot air;
if the difference is smaller than a target difference, controlling a compressor of the vehicle-mounted air conditioner to heat air intake of a passenger compartment of the vehicle, wherein the target difference is determined according to the difference between the ambient temperature and the PTC target heating temperature;
and controlling the PTC of the vehicle-mounted air conditioner to exit PTC heating when the warm air temperature reaches the PTC target heating temperature.
Optionally, before the controlling the PTC of the vehicle-mounted air conditioner to heat the passenger compartment intake air of the vehicle according to the PTC target heating temperature, the method includes:
calculating a target power of the PTC heating according to the target PTC heating temperature;
determining that the target power is greater than a minimum operating power of the PTC heating;
the method further comprises the following steps: and controlling a compressor of the vehicle-mounted air conditioner to heat the air intake of the passenger compartment of the vehicle under the condition that the target power is less than or equal to the minimum operation power of the PTC heating.
Optionally, if the difference is smaller than the target difference, controlling a compressor of the vehicle-mounted air conditioner to heat intake air of a passenger compartment of the vehicle includes:
if the difference is smaller than a target difference, calculating a target heating temperature of the compressor, wherein the target heating temperature of the compressor is higher than the PTC target heating temperature;
determining the compressor rotating speed threshold according to the difference between the compressor target heating temperature and the warm air temperature, wherein the rotating speed threshold is used for limiting the upper limit value of the rotating speed of the compressor in the process of heating the passenger compartment air inlet of the vehicle, and the rotating speed threshold is inversely related to the difference between the compressor target heating temperature and the warm air temperature;
and controlling a compressor of the vehicle-mounted air conditioner to heat the air intake of the passenger compartment of the vehicle according to the rotating speed threshold value.
Optionally, the determining the PTC target heating temperature of the vehicle air conditioner includes:
and determining a PTC target heating temperature of the vehicle-mounted air conditioner according to the ambient temperature, the temperature of the passenger compartment and a target heating temperature set by a driver, wherein the PTC target heating temperature is lower than the target heating temperature.
Optionally, the method comprises: after the PTC of the vehicle-mounted air conditioner is controlled to heat the air inlet of the passenger compartment of the vehicle according to the PTC target heating temperature, controlling the compressor of the vehicle-mounted air conditioner to start so as to preheat a compressor heating loop;
if the difference is smaller than the target difference, controlling a compressor of the vehicle-mounted air conditioner to heat air intake of a passenger compartment of the vehicle, and the method comprises the following steps:
and under the condition that the preheating of the compressor heating loop is finished, if the difference is smaller than a target difference, controlling the compressor of the vehicle-mounted air conditioner to heat the air intake of the passenger compartment of the vehicle.
In a second aspect of the embodiments of the present disclosure, a heating control device for a vehicle-mounted air conditioner is provided, where the device includes:
a determination module for determining a PTC target heating temperature of the vehicle-mounted air conditioner in response to an operation of the vehicle-mounted air conditioner heating start;
the first control module is used for controlling the PTC of the vehicle-mounted air conditioner to heat the air inlet of the passenger compartment of the vehicle according to the PTC target heating temperature;
the first calculation module is used for acquiring the temperature of inlet air in the vehicle air conditioning pipeline in real time and calculating the difference value between the PTC target heating temperature and the temperature of the inlet air;
the second control module is used for controlling the compressor of the vehicle-mounted air conditioner to heat air intake of a passenger compartment of the vehicle if the difference is smaller than a target difference, wherein the target difference is determined according to the difference between the temperature of the leeward side of the ambient temperature warm air core and the PTC target heating temperature;
and the third control module is used for controlling the PTC of the vehicle-mounted air conditioner to quit the PTC heating when the warm air temperature reaches the PTC target heating temperature.
Optionally, the apparatus comprises: a second calculation module to:
calculating target power of PTC heating according to the PTC target heating temperature before the PTC of the vehicle-mounted air conditioner is controlled to heat air of a passenger compartment of a vehicle according to the PTC target heating temperature;
determining that the target power is greater than a minimum operating power of the PTC heating;
and controlling a compressor of the vehicle-mounted air conditioner to heat the air intake of the passenger compartment of the vehicle under the condition that the target power is less than or equal to the minimum operation power of the PTC heating.
Optionally, the second control module is configured to:
if the difference is smaller than a target difference, calculating a target heating temperature of the compressor, wherein the target heating temperature of the compressor is higher than the PTC target heating temperature;
determining the compressor rotating speed threshold according to the difference between the compressor target heating temperature and the warm air temperature, wherein the rotating speed threshold is used for limiting the upper limit value of the rotating speed of the compressor in the process of heating the passenger compartment air inlet of the vehicle, and the rotating speed threshold is inversely related to the difference between the compressor target heating temperature and the warm air temperature;
and controlling a compressor of the vehicle-mounted air conditioner to heat the air intake of the passenger compartment of the vehicle according to the rotating speed threshold value.
Optionally, the determining module is configured to determine a PTC target heating temperature of the vehicle air conditioner according to an ambient temperature, a passenger compartment temperature, and a target heating temperature set by a driver, where the PTC target heating temperature is lower than the target heating temperature.
Optionally, the apparatus comprises: the fourth control module is used for controlling the compressor of the vehicle-mounted air conditioner to start so as to preheat a compressor heating loop after the PTC of the vehicle-mounted air conditioner is controlled to heat the air inlet of the passenger compartment of the vehicle according to the PTC target heating temperature;
the second control module is specifically configured to, when the preheating of the compressor heating loop is completed, control the compressor of the vehicle-mounted air conditioner to heat intake air of a passenger compartment of the vehicle if the difference is smaller than a target difference.
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, which when executed by a processor, implements the steps of the vehicle-mounted air conditioner heating control method according to any one of the first aspects.
In a fourth aspect of the disclosed embodiments, there is provided a vehicle controller comprising:
a memory having a computer program stored thereon;
a processor configured to execute the computer program in the memory to implement the steps of the in-vehicle air conditioner heating control method according to any one of the first aspect.
In a fifth aspect of the disclosed embodiment, a vehicle is provided that includes the vehicle controller described in the fourth aspect.
Through the technical scheme, the following technical effects can be at least achieved:
the method comprises the steps of determining the PTC target heating temperature of the vehicle-mounted air conditioner by responding to the operation of heating start of the vehicle-mounted air conditioner, controlling the PTC of the vehicle-mounted air conditioner to heat air inlet of a passenger compartment of the vehicle according to the PTC target heating temperature, collecting the temperature of hot air inlet in a pipeline of the vehicle air conditioner in real time, calculating the difference between the PTC target heating temperature and the temperature of the hot air, controlling a compressor of the vehicle-mounted air conditioner to heat air inlet of the passenger compartment of the vehicle if the difference is smaller than the target difference, and controlling the PTC of the vehicle-mounted air conditioner to quit PTC heating if the temperature of the hot air reaches the. Therefore, based on the PTC heating started firstly, the PTC power is high, the heating response is fast, the passenger compartment can be rapidly heated by air intake, and then the compressor is started for heating, so that the influence of cold air in a heating loop of the compressor on the PTC heating can be reduced, and the heating energy consumption is reduced. Further, when the PTC heating temperature is reached, the PTC heating with higher power is quitted, and the heating energy consumption can be reduced only by heating through the compressor with lower power, so that the vehicle endurance is facilitated.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a flowchart illustrating a heating control method of an in-vehicle air conditioner according to an example.
Fig. 2 is a schematic layout of an in-vehicle air conditioner according to an exemplary illustration.
Fig. 3 is a flowchart illustrating an implementation of step S104 of fig. 1 according to an exemplary illustration.
Fig. 4 is a block diagram of an in-vehicle air conditioning and heating control device according to an exemplary illustration.
Fig. 5 is a block diagram illustrating an electronic device 700 according to an example embodiment.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
It should be noted that in the present disclosure, the terms "first", "second", and the like in the description and in the claims, as well as in the drawings, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
In a related scene, the vehicle-mounted air conditioner simultaneously operates the compressor for heating and the PTC for heating, because the heating response speed of the compressor is low, the cold air in a heating loop of the compressor is also low in heating, and the PTC is high in heating power and high in heating response speed. And the air outlet of the compressor heating loop and the air outlet of the PTC heating loop are the same air outlet, so that cold air in the compressor heating loop can reduce the temperature of hot air heated by the PTC at the heating initial stage, the heating response speed of the whole vehicle-mounted air conditioner is low, the energy consumption is high, and the cruise of a vehicle is not facilitated.
In view of the above, the present disclosure provides a method, an apparatus, a medium, a device and a vehicle for controlling heating of a vehicle air conditioner, so as to solve the problems in the related art, and reduce energy consumption in the heating process of the vehicle air conditioner while increasing the heating response speed of the vehicle air conditioner, thereby being beneficial to ensuring the driving mileage of the vehicle.
Fig. 1 is a flowchart illustrating a heating control method of an in-vehicle air conditioner according to an example, and referring to fig. 1, the method includes the following steps.
In step S101, in response to an operation of the in-vehicle air conditioner heating on, the PTC target heating temperature of the in-vehicle air conditioner is determined.
In step S102, the PTC of the in-vehicle air conditioner is controlled to heat the passenger compartment intake air of the vehicle according to the PTC target heating temperature.
In step S103, the temperature of the warm air entering the vehicle air conditioning duct is collected in real time, and the difference between the PTC target heating temperature and the warm air temperature is calculated.
In step S104, if the difference is smaller than the target difference, the compressor of the in-vehicle air conditioner is controlled to heat the intake air of the passenger compartment of the vehicle.
Wherein the target difference is determined according to a difference between the ambient temperature and the PTC target heating temperature.
In step S105, when the warm air temperature reaches the PTC target heating temperature, the PTC of the in-vehicle air conditioner is controlled to exit the PTC heating.
First, the arrangement and the use of the vehicle air conditioner in the present disclosure will be described, where the vehicle air conditioner is a vehicle air conditioning system that can realize the function of warming the passenger compartment of a vehicle by switching different modes and loops.
Referring to fig. 2, a schematic view of an arrangement of an in-vehicle air conditioner is shown. The compressor is a compression device and is the operation power of a compressor heating loop of the vehicle-mounted air conditioner, optionally, the compressor can be an electric compressor, refrigerant absorbs heat energy when passing through an outdoor heat exchanger under the power action of the compressor, and the heat energy carried by the refrigerant is dissipated to a passenger compartment when passing through an indoor condenser after the refrigerant performs work and heats through the compressor. The indoor condenser is a part of a heating loop of the compressor and is a refrigerant circulating heat dissipation device, when the refrigerant passes through the indoor condenser, under the action of the air 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, and the heated air enters the air conditioning air duct after passing through the cold and warm air door and the mode air door to realize the heating of the passenger compartment.
The PTC is a vehicle-mounted air conditioner high-pressure heating device, converts high-voltage electric energy of the whole vehicle into an electric device of heat energy, heats water in the PTC heating loop through the heater, and emits carried heat energy to the passenger compartment when the heated water passes through the warm air core body. The warm air core body is a water circulation heat dissipation device, under the action of an air blower, when air to be heated passes through the warm air core body, heat carried by heating water is transferred to the air to be heated, so that the air blown into the passenger compartment is heated, and the heated air enters an air conditioning air duct after passing through the cold and warm air door and the mode air door to realize heating of the passenger compartment.
Specifically, PI calculation is carried out according to the PTC target heating temperature and the hot air temperature of the inlet air in the vehicle air conditioning pipeline, the PTC of the vehicle-mounted air conditioner is controlled to heat the inlet air of the passenger compartment of the vehicle, and the hot air temperature of the inlet air of the passenger compartment is collected in real time through a temperature sensor T arranged on the leeward side of a hot air core body.
It is worth to be noted that the temperature sensor T arranged on the leeward side of the warm air core can acquire the warm air temperature of the passenger compartment intake air heated by the warm air core in real time under the condition that the passenger compartment intake air is heated by the PTC; under the condition that the passenger compartment is heated through the PTC and the compressor, the temperature of warm air entering the passenger compartment and heated through the warm air core body can be collected in real time. Under the condition that the passenger compartment is heated through the compressor, the temperature of warm air of the passenger compartment intake air heated through the indoor condenser can be collected in real time.
Specifically, the target difference is stored in the vehicle-mounted air conditioner controller through typical calibration, and during actual use, the target difference is determined through a table look-up according to the difference between the ambient temperature and the PTC target heating temperature.
Further, the target difference is a positive correlation according to the difference between the ambient temperature and the PTC target heating temperature, and illustratively, in the case where the ambient temperature is 5 ℃ and the PTC target heating temperature is 18 ℃, the target difference is 6; in the case where the ambient temperature is 8 ℃ and the PTC target heating temperature is 18 ℃, the target difference is 5; in the case where the ambient temperature was 5 deg.c and the PTC target heating temperature was 22 deg.c, the target difference was 8.
Optionally, the target difference is also inversely related to the ambient temperature. For example, in the case where the ambient temperature is 5 ℃ and the PTC target heating temperature is 18 ℃, the target difference is 6; in the case where the ambient temperature was-5 deg.c and the PTC target heating temperature was 18 deg.c, the target difference was 8. That is, in the case where the difference between the ambient temperature and the PTC target heating temperature is the same, the lower the ambient temperature is, the larger the target difference is.
Alternatively, in the case where the passenger compartment intake air is heated only by the compressor, if the compressor is operated at the maximum load power, the heating demand cannot be satisfied, and the PTC heating may be restarted.
In the specific implementation process, in the process of controlling a compressor of the vehicle-mounted air conditioner to heat the intake air of the passenger compartment of the vehicle, the PTC heating is automatically quitted according to the PI algorithm, and the PTC heating is completely quitted under the condition that the warm air temperature reaches or exceeds the PTC target heating temperature.
According to the technical scheme, the PTC target heating temperature of the vehicle-mounted air conditioner is determined by responding to the operation of heating start of the vehicle-mounted air conditioner, the PTC of the vehicle-mounted air conditioner is controlled according to the PTC target heating temperature to heat air intake of a passenger compartment of a vehicle, the warm air temperature of the air intake in a pipeline of the vehicle air conditioner is collected in real time, the difference between the PTC target heating temperature and the warm air temperature is calculated, if the difference is smaller than the target difference, a compressor of the vehicle-mounted air conditioner is controlled to heat the air intake of the passenger compartment of the vehicle, and if the warm air temperature reaches the PTC target heating temperature, the PTC of the vehicle-mounted air conditioner. Therefore, based on the PTC heating started firstly, the PTC power is high, the heating response is fast, the passenger compartment can be rapidly heated by air intake, and then the compressor is started for heating, so that the influence of cold air in a heating loop of the compressor on the PTC heating can be reduced, and the heating energy consumption is reduced. Further, when the PTC heating temperature is reached, the PTC heating with higher power is quitted, and the heating energy consumption can be reduced only by heating through the compressor with lower power, so that the vehicle endurance is facilitated.
Optionally, before controlling the PTC of the vehicle-mounted air conditioner to heat the passenger compartment intake air of the vehicle according to the PTC target heating temperature at step S102, the method includes:
calculating target power of PTC heating according to the target PTC heating temperature;
determining that the target power is greater than the minimum operating power of the PTC heating;
the method further comprises the following steps: and controlling a compressor of the vehicle-mounted air conditioner to heat the air intake of the passenger compartment of the vehicle under the condition that the target power is less than or equal to the minimum operation power of the PTC heating.
Illustratively, the minimum operation power of the PTC heating is 1kw, and in the case that the target power is more than 1kw, the PTC of the vehicle-mounted air conditioner is controlled according to the PTC target heating temperature to heat the passenger compartment air inlet of the vehicle. And under the condition that the target power is less than or equal to 1kw, based on typical calibration, controlling a compressor of the vehicle-mounted air conditioner to heat the air intake of the passenger compartment of the vehicle according to the current operation condition of the vehicle.
Alternatively, fig. 3 is a flowchart for implementing step S104 in fig. 1, where in step S104, if the difference is smaller than the target difference, the controlling the compressor of the vehicle air conditioner to heat the passenger compartment intake air of the vehicle includes:
in step S1041, if the difference is smaller than the target difference, a target heating temperature of the compressor is calculated.
Wherein the target heating temperature of the compressor is higher than the target PTC heating temperature.
In step S1042, a compressor rotation speed threshold is determined according to a difference between the target heating temperature of the compressor and the warm air temperature.
The rotating speed threshold value is used for limiting the upper limit value of the rotating speed of the compressor in the process of heating the passenger compartment air inlet of the vehicle, and the rotating speed threshold value is inversely related to the difference value between the target heating temperature of the compressor and the warm air temperature.
In step S1043, a compressor of the in-vehicle air conditioner is controlled to heat intake air of a passenger compartment of the vehicle according to the rotation speed threshold.
Illustratively, in the case where the warm air temperature of the passenger compartment intake air is 17 ℃ and the compressor target heating temperature is 22 ℃, i.e., the difference between the temperatures of the compressor target heating temperature and the warm air temperature of the passenger compartment intake air is 5, the compressor rotation speed threshold is 300 revolutions/second; the method comprises the following steps that the compressor is used for heating air at the warm air temperature of the air intake of the passenger compartment, the temperature of the warm air temperature of the air intake of the passenger compartment gradually rises, and when the warm air temperature of the air intake of the passenger compartment reaches 18 ℃, namely the difference value between the target heating temperature of the compressor and the warm air temperature of the air intake of the passenger compartment is 4, and the rotating speed threshold of the compressor is increased to 400 revolutions per second; further, in the case where the warm air temperature of the passenger compartment intake air reaches 19 ℃, i.e., the difference between the target heating temperature of the compressor and the temperature of the warm air temperature of the passenger compartment intake air is 3, the compressor rotation speed threshold is increased to 500 revolutions per second.
By adopting the technical scheme, the rotating speed of the compressor is limited based on the difference between the target heating temperature and the warm air temperature, the condition that the rotating speed of the compressor rises too fast to cause the pressure of an air suction port of the compressor to be too low to cause damage to the compressor and a pipeline can be avoided, and the protection to a vehicle-mounted air conditioning system and the compressor is improved.
Optionally, in step S101, the determining the PTC target heating temperature of the vehicle air conditioner includes:
and determining a PTC target heating temperature of the vehicle-mounted air conditioner according to the ambient temperature, the temperature of the passenger compartment and a target heating temperature set by a driver, wherein the PTC target heating temperature is lower than the target heating temperature.
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.
Optionally, the method comprises: after the PTC of the vehicle-mounted air conditioner is controlled to heat the air inlet of the passenger compartment of the vehicle according to the PTC target heating temperature, controlling the compressor of the vehicle-mounted air conditioner to start so as to preheat a compressor heating loop;
in step S104, if the difference is smaller than the target difference, controlling the compressor of the vehicle air conditioner to heat the intake air of the passenger compartment of the vehicle includes:
and under the condition that the preheating of the compressor heating loop is finished, if the difference is smaller than a target difference, controlling the compressor of the vehicle-mounted air conditioner to heat the air intake of the passenger compartment of the vehicle.
Specifically, the preheating temperature of a compressor loop is determined according to the environment temperature, the preheating rotating speed of the compressor is determined according to the preheating temperature, and then the compressor of the vehicle-mounted air conditioner is controlled to start according to the preheating rotating speed so as to preheat a heating loop of the compressor.
The temperature of the compressor loop is acquired through a temperature sensor arranged in the compressor loop, and the preheating of the compressor heating loop is determined to be completed under the condition that the temperature of the compressor loop reaches the preheating temperature.
Optionally, the target preheating time period of the compressor circuit is determined according to the ambient temperature, and the target preheating time period is positively correlated with the ambient temperature, and the lower the ambient temperature is, the longer the target preheating time period is. And determining that the preheating of the heating loop of the compressor is finished under the condition that the preheating time length reaches the target preheating time length.
By adopting the technical scheme, the compressor loop can be preheated, cold air in the compressor heating loop can be prevented from entering the passenger cabin when the compressor is heated and the passenger cabin starts to be participated in air intake heating, the air intake heating effect of the passenger cabin is weakened, the operation stability of the vehicle-mounted air conditioner and the heating comfort of the passenger cabin are improved, and meanwhile, the heating power consumption of the vehicle-mounted air conditioner can be reduced.
Based on the same inventive concept, the present disclosure further provides a vehicle air conditioner heating control device 400, configured to execute the steps of the vehicle air conditioner heating control method provided in the foregoing method embodiment, where the device 400 may implement the vehicle air conditioner heating control method in a software, hardware, or a combination of the two. Fig. 4 is a block diagram illustrating an in-vehicle air conditioning and heating control apparatus 400 according to an exemplary embodiment, where the apparatus 400 includes, as shown in fig. 4: 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.
The determining module 410 is used for responding to the operation of the heating start of the vehicle-mounted air conditioner and determining the PTC target heating temperature of the vehicle-mounted air conditioner;
the first control module 420 is used for controlling the PTC of the vehicle-mounted air conditioner to heat the passenger compartment intake air of the vehicle according to the PTC target heating temperature;
the first calculation module 430 is used for acquiring the temperature of inlet hot air in the vehicle air conditioning pipeline in real time and calculating the difference value between the PTC target heating temperature and the temperature of the hot air;
a second control module 440, configured to control a compressor of the vehicle air conditioner to heat intake air of a passenger compartment of a vehicle if the difference is smaller than a target difference, where the target difference is determined according to a difference between an ambient temperature and the PTC target heating temperature;
and the third control module 450 is configured to control the PTC of the vehicle air conditioner to exit PTC heating when the warm air temperature reaches the PTC target heating temperature.
The device is based on starting PTC heating first, because PTC power is great, the heating response is fast, can heat passenger compartment air intake fast, and then start the compressor and heat, can reduce the influence of cold air in the compressor heating return circuit to PTC heating, reduce the heating energy consumption. Further, when the PTC heating temperature is reached, the PTC heating with higher power is quitted, and the heating energy consumption can be reduced only by heating through the compressor with lower power, so that the vehicle endurance is facilitated.
Optionally, the apparatus comprises: a second calculation module to:
calculating target power of PTC heating according to the PTC target heating temperature before the PTC of the vehicle-mounted air conditioner is controlled to heat air of a passenger compartment of a vehicle according to the PTC target heating temperature;
determining that the target power is greater than a minimum operating power of the PTC heating;
and controlling a compressor of the vehicle-mounted air conditioner to heat the air intake of the passenger compartment of the vehicle under the condition that the target power is less than or equal to the minimum operation power of the PTC heating.
Optionally, the second control module 440 is configured to:
if the difference is smaller than a target difference, calculating a target heating temperature of the compressor, wherein the target heating temperature of the compressor is higher than the PTC target heating temperature;
determining the compressor rotating speed threshold according to the difference between the compressor target heating temperature and the warm air temperature, wherein the rotating speed threshold is used for limiting the upper limit value of the rotating speed of the compressor in the process of heating the passenger compartment air inlet of the vehicle, and the rotating speed threshold is inversely related to the difference between the compressor target heating temperature and the warm air temperature;
and controlling a compressor of the vehicle-mounted air conditioner to heat the air intake of the passenger compartment of the vehicle according to the rotating speed threshold value.
Optionally, the determining module 410 is configured to determine a PTC target heating temperature of the vehicle air conditioner according to an ambient temperature, a passenger compartment temperature, and a target heating temperature set by a driver, where the PTC target heating temperature is lower than the target heating temperature.
Optionally, the apparatus comprises: the fourth control module is used for controlling the compressor of the vehicle-mounted air conditioner to start so as to preheat a compressor heating loop after the PTC of the vehicle-mounted air conditioner is controlled to heat the air inlet of the passenger compartment of the vehicle according to the PTC target heating temperature;
the second control module 440 is specifically configured to, when the preheating of the compressor heating loop is completed, control the compressor of the vehicle-mounted air conditioner to heat intake air of the passenger compartment of the vehicle if the difference is smaller than a target difference.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
It should be noted that, for convenience and brevity of description, the embodiments described in the specification all belong to the preferred embodiments, and the related parts 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 may be the same device when being implemented specifically, and the disclosure is not limited thereto.
The disclosed embodiment also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps of the vehicle air conditioner heating control method described in any one of the above.
The disclosed embodiments also provide an electronic device, which may be configured as an onboard air conditioning controller, including:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to implement the steps of the vehicle air conditioner heating control method as described in any one of the above.
The embodiment of the present disclosure further provides a vehicle, which includes the above electronic device or the vehicle-mounted air conditioner heating control device.
Fig. 5 is a block diagram illustrating an electronic device 700 according to an example embodiment. The electronic device 700 may be configured as an in-vehicle air conditioning controller, and as shown in fig. 5, 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.
The processor 701 is configured to control the overall operation of the electronic device 700, so as to complete all or part of the steps in the vehicle air conditioner heating control method. The memory 702 is used to store various types of data to support operation of the electronic device 700, such as 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 Memory device or 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, magnetic disk, or optical disk. 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 more of them, which is not limited herein. The corresponding communication component 705 may thus include: Wi-Fi module, Bluetooth module, NFC module, etc.
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 for performing the above-described vehicle air conditioning heating control method.
In another exemplary embodiment, there is also provided a computer readable storage medium including program instructions, which when executed by a processor, implement the steps of the above-described in-vehicle air conditioner heating control method. For example, the computer readable storage medium may be the memory 702 including the program instructions, which are executable by the processor 701 of the electronic device 700 to perform the vehicle air conditioner heating control method described above.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A heating control method of a vehicle-mounted air conditioner is characterized by comprising the following steps:
determining a PTC target heating temperature of the vehicle-mounted air conditioner in response to an operation of the vehicle-mounted air conditioner heating on;
controlling the PTC of the vehicle-mounted air conditioner to heat the air inlet of the passenger compartment of the vehicle according to the PTC target heating temperature;
collecting the temperature of inlet air in the vehicle air conditioning pipeline in real time, and calculating the difference between the PTC target heating temperature and the temperature of the inlet air;
if the difference is smaller than a target difference, controlling a compressor of the vehicle-mounted air conditioner to heat air intake of a passenger compartment of the vehicle, wherein the target difference is determined according to the difference between the ambient temperature and the PTC target heating temperature;
and controlling the PTC of the vehicle-mounted air conditioner to exit PTC heating when the warm air temperature reaches the PTC target heating temperature.
2. The method according to claim 1, wherein before the controlling the PTC of the on-board air conditioner to heat passenger compartment intake air of the vehicle according to the PTC target heating temperature, the method comprises:
calculating a target power of the PTC heating according to the target PTC heating temperature;
determining that the target power is greater than a minimum operating power of the PTC heating;
the method further comprises the following steps: and controlling a compressor of the vehicle-mounted air conditioner to heat the air intake of the passenger compartment of the vehicle under the condition that the target power is less than or equal to the minimum operation power of the PTC heating.
3. The method of claim 1, wherein if the difference is less than a target difference, controlling a compressor of the on-board air conditioner to heat passenger compartment intake air of the vehicle comprises:
if the difference is smaller than a target difference, calculating a target heating temperature of the compressor, wherein the target heating temperature of the compressor is higher than the PTC target heating temperature;
determining the compressor rotating speed threshold according to the difference between the compressor target heating temperature and the warm air temperature, wherein the rotating speed threshold is used for limiting the upper limit value of the rotating speed of the compressor in the process of heating the passenger compartment air inlet of the vehicle, and the rotating speed threshold is inversely related to the difference between the compressor target heating temperature and the warm air temperature;
and controlling a compressor of the vehicle-mounted air conditioner to heat the air intake of the passenger compartment of the vehicle according to the rotating speed threshold value.
4. The method of claim 1, wherein the determining the PTC target heating temperature of the on-board air conditioner comprises:
and determining a PTC target heating temperature of the vehicle-mounted air conditioner according to the ambient temperature, the temperature of the passenger compartment and a target heating temperature set by a driver, wherein the PTC target heating temperature is lower than the target heating temperature.
5. The method according to any one of claims 1-4, characterized in that the method comprises: after the PTC of the vehicle-mounted air conditioner is controlled to heat the air inlet of the passenger compartment of the vehicle according to the PTC target heating temperature, controlling the compressor of the vehicle-mounted air conditioner to start so as to preheat a compressor heating loop;
if the difference is smaller than the target difference, controlling a compressor of the vehicle-mounted air conditioner to heat air intake of a passenger compartment of the vehicle, and the method comprises the following steps:
and under the condition that the preheating of the compressor heating loop is finished, if the difference is smaller than a target difference, controlling the compressor of the vehicle-mounted air conditioner to heat the air intake of the passenger compartment of the vehicle.
6. An on-vehicle air conditioner heating control device, characterized in that the device includes:
a determination module for determining a PTC target heating temperature of the vehicle-mounted air conditioner in response to an operation of the vehicle-mounted air conditioner heating start;
the first control module is used for controlling the PTC of the vehicle-mounted air conditioner to heat the air inlet of the passenger compartment of the vehicle according to the PTC target heating temperature;
the first calculation module is used for acquiring the temperature of inlet air in the vehicle air conditioning pipeline in real time and calculating the difference value between the PTC target heating temperature and the temperature of the inlet air;
the second control module is used for controlling a compressor of the vehicle-mounted air conditioner to heat air intake of a passenger compartment of the vehicle if the difference is smaller than a target difference, wherein the target difference is determined according to the difference between the ambient temperature and the PTC target heating temperature;
and the third control module is used for controlling the PTC of the vehicle-mounted air conditioner to quit the PTC heating when the warm air temperature reaches the PTC target heating temperature.
7. The apparatus of claim 6, wherein the apparatus comprises: a second calculation module to:
calculating target power of PTC heating according to the PTC target heating temperature before the PTC of the vehicle-mounted air conditioner is controlled to heat air of a passenger compartment of a vehicle according to the PTC target heating temperature;
determining that the target power is greater than a minimum operating power of the PTC heating;
and controlling a compressor of the vehicle-mounted air conditioner to heat the air intake of the passenger compartment of the vehicle under the condition that the target power is less than or equal to the minimum operation power of the PTC heating.
8. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 5.
9. An electronic device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 1 to 5.
10. A vehicle characterized by comprising the electronic device of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110282879.3A CN112977004A (en) | 2021-03-16 | 2021-03-16 | Heating control method, device, medium, equipment and vehicle of vehicle-mounted air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110282879.3A CN112977004A (en) | 2021-03-16 | 2021-03-16 | Heating control method, device, medium, equipment and vehicle of vehicle-mounted air conditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113415122A (en) * | 2021-07-16 | 2021-09-21 | 东风汽车股份有限公司 | Control method of air conditioner heating system of pure electric vehicle |
| CN115782532A (en) * | 2022-11-28 | 2023-03-14 | 重庆长安汽车股份有限公司 | Electric compressor control method and system, electronic equipment and storage medium |
-
2021
- 2021-03-16 CN CN202110282879.3A patent/CN112977004A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113415122A (en) * | 2021-07-16 | 2021-09-21 | 东风汽车股份有限公司 | Control method of air conditioner heating system of pure electric vehicle |
| CN115782532A (en) * | 2022-11-28 | 2023-03-14 | 重庆长安汽车股份有限公司 | Electric compressor control method and system, electronic equipment and storage medium |
| CN115782532B (en) * | 2022-11-28 | 2024-06-04 | 重庆长安汽车股份有限公司 | Control method and system for electric compressor, electronic equipment and storage medium |
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