Vehicle heating system, method and device, storage medium and vehicle

Abstract

The invention relates to a vehicle heating system, method and device, a storage medium and a vehicle, and relates to the technical field of electric vehicle control. The vehicle heating system comprises a PTC heater, a diesel oil heater, a warm air core body, a heat exchanger, a power battery, a first water pump, a second water pump, a three-way valve, a circulating water pipeline, a cooling water pipeline and a vehicle control system. The PTC heater, the diesel oil heater and the first water pump are arranged on the main pipeline in series; the three-way valve is arranged at one end of the main pipeline and connected with the main pipeline, the first branch pipeline and the second branch pipeline. The other end of the main pipeline is respectively connected with the first branch pipeline and the second branch pipeline; the warm air core body is arranged on the first branch pipeline, and the heat exchanger is arranged on the second branch pipeline; the heat exchanger, the second water pump and the power battery are connected through a cooling water pipeline of the power battery; the PTC heater and the diesel oil heater are electrically connected with a vehicle control system.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of electric vehicle control technology, and in particular to a vehicle heating system, method, device, storage medium and vehicle. Background Art

[0002] With the rapid development of electric vehicles, the battery life of electric vehicles has received widespread attention, especially in harsh temperature environments. For example, in winter, the battery life of electric vehicles is significantly worse than that in spring and autumn.

[0003] In the related technology, after entering an environment with lower temperature, electric vehicles can automatically heat up according to the current temperature of the vehicle battery using PTC heaters and coolant circulation to ensure that the battery is at the optimal operating temperature. The PTC heater uses positive temperature coefficient thermistor materials, which have low resistance, large current, and rapid heat generation at low temperatures. As the temperature rises, the resistance increases, the current decreases, and the maximum temperature is automatically limited. In electric vehicles, the PTC heater heats the battery through the coolant circulation system, so that the vehicle battery can effectively maintain the optimal operating temperature range.

[0004] However, in the above scheme, electric vehicles need to consume a large amount of electricity to heat the vehicle's battery through PTC, and the battery power consumption is large, resulting in a decrease in the vehicle's endurance. Summary of the invention

[0005] The embodiments of the present application provide a vehicle heating system, method, device, storage medium and vehicle, which can effectively improve the endurance of the vehicle. The technical solution is as follows:

[0006] On the one hand, a vehicle heating system is provided, the vehicle heating system comprising: a PTC heater, a diesel heater, a heater core, a heat exchanger, a power battery, a first water pump, a second water pump, a three-way valve, a circulating water pipeline, a cooling water pipeline and a vehicle control system;

[0007] The circulating water pipeline includes a main pipeline, a first branch pipeline and a second branch pipeline;

[0008] The PTC heater, the diesel heater, and the first water pump are arranged in series on the main pipe;

[0009] The three-way valve is arranged at one end of the main pipeline, and the three-way valve is respectively connected to the main pipeline, the first branch pipeline and the second branch pipeline;

[0010] The other end of the main pipeline is connected to the first branch pipeline and the second branch pipeline respectively;

[0011] The heater core is arranged on the first branch pipeline, and the heat exchanger is arranged on the second branch pipeline;

[0012] The heat exchanger, the second water pump and the power battery are connected via a cooling water pipeline of the power battery;

[0013] The PTC heater and the diesel heater are electrically connected to the vehicle control system respectively.

[0014] In another aspect, a vehicle heating method is provided, the method being executed by a vehicle control system in the vehicle heating system, the method comprising:

[0015] Obtaining a heating mode specified by a user; the heating mode includes preferentially using the diesel heater for heating, preferentially using the PTC heater for heating, using the diesel heater for heating, or using the PTC heater for heating;

[0016] Acquiring in-vehicle heating demand information of the vehicle and battery heating demand information of the power battery;

[0017] generating a heating instruction according to the heating mode, the in-vehicle heating demand information, and the battery heating demand information;

[0018] sending the heating instruction to at least one of the diesel heater and the PTC heater to control at least one of the diesel heater and the PTC heater to heat the circulating water in the circulating water pipeline;

[0019] generating a valve control instruction according to the in-vehicle heating demand information and the battery heating demand information;

[0020] The valve control instruction is sent to the three-way valve, and the valve control instruction is used to control the valve opening and closing degree of the three-way valve to control the flow ratio of the circulating water in the first branch pipeline and the second branch pipeline.

[0021] In another aspect, a vehicle heating device is provided, the device comprising:

[0022] A heating mode acquisition module, used to acquire a heating mode specified by a user; the heating mode includes preferentially using the diesel heater for heating, preferentially using the PTC heater for heating, using the diesel heater for heating, or using the PTC heater for heating;

[0023] An in-vehicle heating demand information acquisition module, used to acquire in-vehicle heating demand information of the vehicle and battery heating demand information of the power battery;

[0024] A heating instruction generating module, used for generating a heating instruction according to the heating mode, the in-vehicle heating requirement information and the battery heating requirement information;

[0025] a heating instruction sending module, used for sending the heating instruction to at least one of the diesel heater and the PTC heater, so as to control at least one of the diesel heater and the PTC heater to heat the circulating water in the circulating water pipeline;

[0026] A valve control instruction generating module, used for generating a valve control instruction according to the in-vehicle heating demand information and the battery heating demand information;

[0027] The valve control instruction sending module is used to send the valve control instruction to the three-way valve, and the valve control instruction is used to control the valve opening and closing degree of the three-way valve to control the flow ratio of the circulating water in the first branch pipeline and the second branch pipeline.

[0028] On the other hand, a computer-readable storage medium is provided, wherein at least one instruction, at least one program, a code set or an instruction set is stored in the storage medium, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by a processor to implement the vehicle heating method as described above.

[0029] On the other hand, a vehicle is provided, which includes a vehicle heating system; the vehicle heating system includes a PTC heater, a diesel heater, a three-way valve, a heater core, a heat exchanger, a power battery, a first water pump, a second water pump, a three-way valve, a circulating water pipeline, a cooling water pipeline and a vehicle control system; the vehicle is capable of executing the vehicle heating method.

[0030] In another aspect, a computer program product is provided, the computer program product comprising a computer program, the computer program being stored in a computer-readable storage medium. A processor of a computer device reads the computer program from the computer-readable storage medium, and the processor executes the computer program, so that the computer device executes the vehicle heating method provided in the above-mentioned various optional implementations.

[0031] The technical solution provided by this application may have the following beneficial effects:

[0032] The above-mentioned vehicle heating system adds a diesel heater as a heat source. In a low temperature environment, the vehicle heating system can start at least one of the diesel heater and the PTC heater to heat the circulating water pipeline to provide the necessary heat. At the same time, the cooling water pipeline of the power battery is connected through a heat exchanger, and the heat of the circulating water pipeline can be transferred to the cooling water pipeline of the power battery, thereby heating the power battery. Conversely, when the temperature of the power battery is too high, the heat exchanger can transfer the heat in the cooling water pipeline to the circulating water pipeline; during the heating process, the vehicle heating system can effectively manage the power battery temperature, prevent the battery from overheating, and make full use of the existing heat resources; due to the addition of the diesel heater, the vehicle control system can select the most appropriate heating method according to the actual ambient temperature and the power battery status, reducing the dependence on the power battery during the vehicle heating process. Through the effective management of different heat sources and the intelligent distribution of heat, it can reduce the consumption of electric energy and effectively improve the vehicle's endurance.

[0033] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0035] Figure 1 is a system structure diagram of a vehicle heating system involved in one embodiment of the present application;

[0036] Figure 2 is a flow chart of a vehicle heating method provided by an embodiment of the present application;

[0037] Figure 3 It is a structural schematic diagram of a water heating circuit provided by an embodiment of the present application;

[0038] Figure 4 is a flow chart of an electric vehicle heating method provided by an embodiment of the present application;

[0039] Figure 5 is a block diagram of a vehicle heating device provided by an exemplary embodiment of the present application;

[0040] Figure 6 It is a structural diagram of a computer device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0041] Here, exemplary embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application.

[0042] Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as recited in the appended claims.

[0043] Please refer to Figure 1 , Figure 1 FIG. 1 is a system structure diagram of a vehicle heating system according to an embodiment of the present application. Figure 1 As shown, the vehicle heating system includes: a PTC heater 100, a diesel heater 101, a heater core 102, a heat exchanger 103, a power battery 104, a first water pump 105, a second water pump 106, a three-way valve 107, a circulating water pipeline, a cooling water pipeline 10a and a vehicle control system 108;

[0044] The circulating water pipeline includes a main pipeline 10b, a first branch pipeline 10c and a second branch pipeline 10d;

[0045] The PTC heater 100, the diesel heater 101, and the first water pump 105 are arranged in series on the main pipeline 10b;

[0046] The three-way valve 107 is disposed at one end of the main pipeline 10b, and the three-way valve 107 is respectively connected to the main pipeline 10b, the first branch pipeline 10c and the second branch pipeline 10d;

[0047] The other end of the main pipeline 10b is connected to the first branch pipeline 10c and the second branch pipeline 10d respectively;

[0048] The heater core is arranged on the first branch pipe 10c, and the heat exchanger 103 is arranged on the second branch pipe 10d;

[0049] The heat exchanger 103, the second water pump 106 for vehicle heating, and the power battery 104 are connected via a cooling water pipeline 10a of the power battery 104;

[0050] The PTC heater 100 and the diesel heater 101 are electrically connected to the vehicle control system 108 , respectively.

[0051] Among them, the above-mentioned PTC heater is a heating device based on PTC material. The PTC heater can increase resistance as the temperature rises, reduce the current flow, and reduce the heating power of the vehicle.

[0052] The diesel heater is a heating device that utilizes the heat generated by diesel combustion to achieve heating.

[0053] The three-way valve comprises three independent interfaces and an adjustable valve. The flow direction of the fluid can be changed by adjusting the closing degree of the valve. The three-way valve can be used to control the distribution of the fluid between different paths.

[0054] The heater core is a part of the automobile air conditioning system. The hot water flowing in the heater core can transfer heat to the air passing through the heater core, thereby providing heating for the vehicle, namely, air conditioning heating.

[0055] Among them, the above-mentioned heat exchanger is a device used for heat exchange between two media (such as liquids in different pipelines). In an embodiment of the present application, the above-mentioned heat exchanger is used to exchange heat between a circulating water pipeline and a cooling water pipeline.

[0056] Among them, the above-mentioned power battery is the main battery pack for storing electrical energy in electric vehicles or hybrid vehicles, which is used to drive the motor and supply power to other electrical systems on the vehicle (such as air conditioning system, PTC heater 100 and other low-voltage systems, etc.).

[0057] Among them, the above-mentioned circulating water pipeline is a closed loop pipeline, which is used to circulate the circulating water between the heater, water pump, three-way valve and heater core or heat exchanger, transferring heat from the PTC heater and / or diesel heater to the module that needs to be heated.

[0058] The main pipeline is the trunk part of the circulating water pipeline, which is connected in series with the PTC heater, the diesel heater and the first water pump.

[0059] Among them, the above-mentioned first branch pipeline is a pipeline that can transfer heat to the air in the car to achieve the purpose of heating the car.

[0060] The second branch pipeline is a pipeline that can transfer heat in the heat exchanger to the power battery to achieve the purpose of heating the power battery.

[0061] Among them, the above-mentioned cooling water pipeline is a closed-loop pipeline that can interact with the circulating water pipeline through a heat exchanger, and use a water pump to circulate the coolant, so that the vehicle's power battery operates within the optimal temperature range.

[0062] In the embodiment of the present application, the three-way valve is provided with three independent interfaces, which can be connected to the heater core, the diesel heater and the heat exchanger respectively. Figure 1 For example, the upper interface of the three-way valve 107 is connected to the diesel heater 101 , the left interface of the three-way valve 107 is connected to the heater core 102 , and the right interface of the three-way valve 107 is connected to the heat exchanger 103 .

[0063] In an embodiment of the present application, the above-mentioned vehicle heating system adds a diesel heater as a heat source. In a low temperature environment, the vehicle heating system can start at least one of the diesel heater and the PTC heater to heat the circulating water pipeline to provide the necessary heat. At the same time, the cooling water pipeline of the power battery is connected through a heat exchanger, and the heat of the circulating water pipeline can be transferred to the cooling water pipeline of the power battery, thereby heating the power battery. Conversely, when the temperature of the power battery is too high, the heat exchanger can transfer the heat in the cooling water pipeline to the circulating water pipeline; during the heating process, the vehicle heating system can effectively manage the power battery temperature, prevent the battery from overheating, and make full use of the existing heat resources; due to the addition of the diesel heater, the vehicle control system can select the most appropriate heating method according to the actual ambient temperature and the power battery status, reducing the dependence on the power battery during the vehicle heating process. Through the effective management of different heat sources and the intelligent distribution of heat, the consumption of electric energy can be reduced and the vehicle's endurance can be effectively improved.

[0064] Based on the schemes shown in any one or more of the above-mentioned embodiments, in some embodiments, the vehicle control system is used to obtain a heating method specified by a user; the vehicle heating method includes giving priority to heating with a diesel heater, giving priority to heating with a PTC heater, heating with a diesel heater, or heating with a PTC heater; obtaining the vehicle heating demand information for the vehicle's interior heating, and the battery heating demand information for the power battery; generating a heating instruction according to the vehicle heating user-specified heating method, the vehicle heating demand information for the interior heating, and the vehicle heating battery heating demand information; sending the vehicle heating instruction to at least one of the diesel heater and the PTC heater to control at least one of the diesel heater and the PTC heater to heat the circulating water in the circulating water pipeline; generating a valve control instruction according to the vehicle heating demand information for the interior heating, and the vehicle heating battery heating demand information; sending a vehicle heating valve control instruction to the three-way valve, the vehicle heating valve control instruction being used to control the valve opening and closing degree of the three-way valve to control the flow ratio of the vehicle heating circulating water in the first branch pipeline and the second branch pipeline.

[0065] The user-specified heating method refers to the heating method set by the driver or passenger according to the current environment and personal preferences.

[0066] In an embodiment of the present application, the vehicle control system can display a user interface, which includes selection options corresponding to four different heating methods: prioritizing heating with a diesel heater, prioritizing heating with a PTC heater, using a diesel heater for heating, and using a PTC heater for heating. A user can interact with the user interface and select a heating method in the user interface.

[0067] Among them, the above-mentioned in-vehicle heating demand information is information indicating the heating target of the vehicle's passenger compartment. The in-vehicle heating demand information may include information related to the heating target, and may also include information related to the current passenger compartment; the in-vehicle heating demand information may include but is not limited to: the current in-vehicle temperature, the target in-vehicle temperature, and the heating speed requirement (for example, whether the vehicle needs to be heated quickly).

[0068] The battery heating requirement information of the power battery indicates the temperature required for the power battery of the vehicle to maintain optimal performance. The battery heating requirement information may include but is not limited to the current battery temperature and the target battery temperature.

[0069] In some embodiments, the vehicle control system determines the target heating power according to at least one of the in-vehicle heating demand information and the battery heating demand information; determines at least one heater and the heating power level corresponding to the at least one heater based on the target heating power and the heating method specified by the user; and generates a heating instruction according to the at least one heater determined to be turned on and the heating power level corresponding to the at least one heater determined to be turned on. In the embodiment of the present application, different heating power ranges can correspond to a heating power level, and the higher the temperature corresponding to the heating power range, the higher the heating power level.

[0070] Optionally, when the user specifies that the heating method is to give priority to heating with the diesel heater, and when the target temperature indicated by the in-vehicle heating demand information and / or the battery heating demand information is significantly different from the current temperature, that is, a large amount of heat is required, the vehicle control system can set the maximum heating power level to turn on the diesel heater; if the diesel heater cannot meet all heating needs, the PTC heater is set to be turned on at the same time, and a heating power level that is lower than the heating power level of the diesel heater is set to turn on the PTC heater to realize the heating function and complete the remaining heating needs.

[0071] Optionally, when the user specifies that the heating method is to give priority to heating with the PTC heater, the heating power level of the PTC heater is set preferentially according to the heating demand indicated by the in-vehicle heating demand information and / or the battery heating demand information. The higher the heating demand, the higher the heating power level. When the PTC heater cannot provide sufficient heat to meet the heating demand, the vehicle control system sets a lower heating power level to turn on the diesel heater, and uses the diesel heater as an auxiliary heating source to generate heat to meet the heating demand.

[0072] Optionally, when the user specifies that the heating method is to use only the diesel heater for heating, the vehicle control system turns off / does not turn on the PTC heater and determines the heating power level of the diesel heater based on the heating demand indicated by the in-vehicle heating demand information and / or the battery heating demand information.

[0073] In an embodiment of the present application, the vehicle control system can obtain the current vehicle interior temperature and / or power battery temperature through the temperature sensor data in the vehicle, compare the current vehicle interior temperature and / or power battery temperature with the target temperature, and calculate the heat required by the vehicle; if the heat required by the vehicle is low, set a low-power heating gear to turn on the diesel heater; conversely, if the required heat is high, set a medium-to-high power heating gear to turn on the diesel heater to ensure that the set temperature is reached quickly.

[0074] Optionally, when the user specifies that the heating method is to use only the PTC heater for heating, the vehicle control system turns off / does not turn on the diesel heater and determines the heating power level of the PTC heater based on the heating demand indicated by the in-vehicle heating demand information and / or the battery heating demand information.

[0075] In an embodiment of the present application, the vehicle control system can obtain the current vehicle interior temperature and / or power battery temperature through the temperature sensor data in the vehicle, compare the current vehicle interior temperature and / or power battery temperature with the target temperature, and calculate the heat required by the vehicle; if the heat required by the vehicle is low, set a low-power heating gear to turn on the PTC heater; conversely, if the required heat is high, set a medium-to-high power heating gear to turn on the PTC heater to ensure that the set temperature is reached quickly.

[0076] In an embodiment of the present application, after determining the heating instruction, the vehicle control system sends the heating instruction to the heater corresponding to the heating instruction through the vehicle's communication bus, so that the heater performs subsequent heating operations based on the heating instruction.

[0077] The valve control instruction is used to adjust the opening and closing degree of the three-way valve, so as to control the direction and flow rate of water flow.

[0078] In an embodiment of the present application, after obtaining the in-vehicle heating demand information and the battery heating information, the vehicle control system evaluates the difference between the current in-vehicle temperature and the target temperature based on the heating method specified by the user and the heating demand information of the vehicle interior and the power battery, and calculates the appropriate flow ratio of the circulating water between the first branch pipeline and the second branch pipeline. The vehicle control system generates a valve control instruction based on the flow ratio, and the generated valve control instruction can guide the three-way valve to adjust the opening and closing degree of the valve to achieve the required flow distribution.

[0079] In an embodiment of the present application, the vehicle control system selects the most suitable heating source (diesel heater or PTC heater) according to the heating method and in-vehicle heating demand information specified by the user, as well as the battery heating demand information of the power battery, to ensure that during the heating process of the vehicle, a heating source that matches the vehicle heating demand and user settings is selected to avoid heat consumption problems caused by selecting a high-power heating source; through valve control instructions, precise control of heat exchange between the circulating water pipeline and the cooling water pipeline can be achieved, unnecessary heat loss can be avoided, and the temperature of the power battery can be precisely controlled, thereby improving the efficiency of the vehicle's power battery, extending the charge and discharge cycle of the vehicle's power battery, and further improving the vehicle's endurance.

[0080] Based on the scheme shown in any one or more of the above-mentioned embodiments, in some embodiments, the vehicle control system is used to display a heating mode selection interface; the vehicle heating mode selection interface includes a priority diesel heater heating option, a priority PTC heater heating option, a diesel heater heating option and a PTC heater heating option; in response to the user's selection operation on the target option in the vehicle heating mode selection interface, the heating mode corresponding to the target option is obtained as the heating mode specified by the user.

[0081] In an embodiment of the present application, the vehicle heating system can display a heating mode selection interface including multiple heating mode options. The user can select the heating mode by interacting with the heating mode selection interface. After the user selects a heating mode option (for example, by clicking to confirm the specified heating mode option), the vehicle control system immediately responds to the user's selection operation, confirms the specific heating mode according to the user's selection, and prepares to send the corresponding heating instruction to the heating device corresponding to the heating mode.

[0082] For example, the user selects the option of "prioritize diesel heater heating" in the heating mode selection interface. In response to the user's selection operation, the vehicle control system sets the diesel heater as the main heat source and the PTC heater as the auxiliary heat source.

[0083] In the embodiments of the present application, the scheme for users to independently select the heating method is expanded. Users can choose the most suitable heating method according to the current environment and vehicle status. Through flexible selection of heating methods, unnecessary energy waste is avoided and the heating efficiency of the vehicle is improved. The vehicle heating function is realized based on the user's selection of the heating method, and the heating method is accurately adjusted to effectively ensure the accuracy of the vehicle heating execution, thereby ensuring the maximization of the vehicle's energy efficiency and extending the vehicle's endurance.

[0084] Based on the schemes shown in any one or more of the above-mentioned embodiments, in some embodiments, the vehicle control system is used to display PTC heating prompt information on the instrument panel and / or central control screen of the vehicle when the vehicle heating instruction includes a first heating instruction corresponding to the PTC heater; the vehicle heating PTC heating prompt information is used to prompt the user that the PTC heater is currently turned on; when the vehicle heating instruction includes a second heating instruction corresponding to the diesel heater, the diesel heating prompt information is displayed on the instrument panel and / or central control screen of the vehicle when the vehicle is heated; the vehicle heating diesel heating prompt information is used to prompt the user that the diesel heater is currently turned on.

[0085] The first heating instruction is a heating instruction generated when the vehicle control system chooses to use the PTC heater, and is used to instruct the vehicle control system to start the PTC heating function.

[0086] Among them, the above-mentioned PTC heating prompt information is information displayed on the vehicle's dashboard and / or central control screen when the vehicle control system executes the first heating instruction, which is used to inform the user that the PTC heater is currently turned on.

[0087] The second heating instruction is a heating instruction generated when the vehicle control system chooses to use the diesel heater, and is used to instruct the vehicle control system to start the diesel heating function.

[0088] Among them, the above-mentioned diesel heating prompt information is information displayed on the vehicle's instrument panel and / or central control screen when the vehicle control system executes the second heating instruction, which is used to inform the user that the diesel heater is currently turned on.

[0089] In an embodiment of the present application, after the vehicle control system determines the heating instruction, it further determines a display instruction containing PTC heating prompt information / diesel heating prompt information based on the heating instruction, and sends the display instruction to the vehicle's instrument panel and / or central control screen. After receiving the display instruction from the vehicle control system, the vehicle's instrument panel and / or central control screen displays the PTC heating prompt information / diesel heating prompt information at a designated position on the vehicle's instrument panel and / or central control screen. For example, "The diesel heater is currently on!" is displayed in the middle position of the vehicle's instrument panel and / or central control screen.

[0090] In the embodiment of the present application, by displaying specific heating prompt information on the vehicle's dashboard and / or central control screen, the user can promptly understand the heater currently used in the vehicle and better adjust the settings according to actual needs, thereby avoiding energy waste or insufficient heating due to misoperation and improving the accuracy of vehicle heating and the heating efficiency of the vehicle.

[0091] Based on the schemes shown in any one or more of the above-mentioned embodiments, in some embodiments, the vehicle control system is also used to detect the remaining diesel amount through the diesel heater when the diesel heater is turned on; display a diesel shortage prompt message when the remaining diesel amount for vehicle heating is less than a specified diesel amount threshold; the vehicle heating diesel shortage prompt message is used to prompt the vehicle heating user that the amount of diesel in the current vehicle heating vehicle is low; in response to the vehicle heating user's execution of the vehicle heating diesel shortage prompt message to stop the diesel heating operation, a stop heating instruction is sent to the diesel heater to turn off the diesel heater.

[0092] The above-mentioned designated diesel quantity threshold is a pre-set minimum diesel quantity standard used to determine whether a warning needs to be issued.

[0093] The above diesel shortage prompt information is information displayed on the vehicle's instrument panel and / or central control screen, and is used to prompt the user that the current diesel quantity in the vehicle is low.

[0094] In an embodiment of the present application, after the vehicle control system turns on the diesel heater, the diesel heater can detect the amount of diesel inside in real time through the sensor. When it is detected that the remaining diesel amount inside the diesel heater is lower than the specified diesel amount threshold, a diesel shortage prompt message is displayed on the vehicle's instrument panel and / or central control screen. The diesel shortage information can be displayed in the form of text warning, flashing icon or sound alarm.

[0095] In an embodiment of the present application, after the diesel shortage prompt message is displayed, the user can confirm to stop the diesel heating by pressing a specific button or selecting a corresponding option on the touch interface. After receiving the user's operation, the vehicle control system sends a stop heating instruction to the diesel heater to turn off the diesel heater.

[0096] In the embodiment of the present application, the vehicle control system timely displays the diesel shortage prompt information based on the real-time detection of the remaining diesel amount, so that the user can timely understand the current working condition of the diesel heater. When the amount of diesel in the diesel heater is low, the diesel heater can be turned off in time to prevent the diesel pump from being damaged due to too little diesel, thereby effectively ensuring the safety of vehicle heating.

[0097] Based on the schemes shown in any one or more of the above-mentioned embodiments, in some embodiments, the vehicle control system obtains the heating priority of the interior temperature of the vehicle and the battery temperature; generates a vehicle heating valve control instruction according to the heating priority of the interior temperature of the vehicle heating and the battery temperature of the vehicle heating, the interior heating demand information of the vehicle heating and the heating demand information of the vehicle heating battery.

[0098] Among them, the above-mentioned heating priority can be a heating priority assigned by the vehicle control system to the interior temperature and the power battery temperature respectively according to user settings, environmental conditions and safety regulations. The higher the heating priority, the higher the priority of heating is, the higher the priority of heating is given by the vehicle control system.

[0099] In an embodiment of the present application, the vehicle control system can obtain the current vehicle interior temperature through a temperature sensor installed in the vehicle compartment, and obtain the temperature of the power battery from the vehicle's power battery management system, and assign heating priority according to preset rules or user preferences.

[0100] For example, when the current ambient temperature of the vehicle is good, the vehicle control system can assign a higher priority to the temperature inside the vehicle; when the vehicle is driving in a low-temperature environment, the vehicle control system can assign a higher priority to the power battery temperature.

[0101] In an embodiment of the present application, after obtaining the heating priorities of the in-vehicle temperature and the battery temperature, the vehicle control system generates a valve control instruction based on the heating priorities of the in-vehicle temperature and the battery temperature, the in-vehicle heating demand information and the battery heating demand information.

[0102] In some embodiments, when the heating priority of the in-vehicle temperature is higher than the heating priority of the battery temperature, the vehicle control system obtains the target in-vehicle temperature and the current in-vehicle temperature; and generates a valve control instruction based on the difference between the target in-vehicle temperature and the current in-vehicle temperature.

[0103] Optionally, when the value of the target vehicle interior temperature minus the current vehicle interior temperature is greater than a first threshold, the vehicle control system generates a first valve control instruction, and the first valve control instruction instructs to completely close the second branch pipeline.

[0104] For example, assuming that the actual temperature inside the vehicle is 10°C, the target temperature is 25°C, the first threshold is 12°C, and the temperature difference between the target temperature inside the vehicle and the current temperature inside the vehicle is greater than the first threshold, the vehicle control system generates a first valve control instruction, instructing the three-way valve to completely close the second branch pipeline leading to the power battery and direct all circulating water flow to the vehicle's internal heating system (first branch pipeline).

[0105] Optionally, when the value of the target in-vehicle temperature minus the current in-vehicle temperature is not greater than a first threshold value, the vehicle control system generates a second valve control instruction based on the value of the target in-vehicle temperature minus the current in-vehicle temperature, and the second valve control instruction indicates a first ratio between the flow rate of the first branch pipeline and the flow rate of the second branch pipeline, and the first ratio is positively correlated with the value of the target in-vehicle temperature minus the current in-vehicle temperature.

[0106] For example, assuming that the actual temperature in the vehicle is currently 20°C, the target temperature is 22°C, the first threshold is 12°C, and the temperature difference between the target vehicle temperature and the current vehicle temperature is 2°C, which is less than the first threshold. The vehicle control system generates a second valve control instruction, and the second valve control instruction indicates that the flow ratio between the first branch pipeline (leading to the vehicle compartment) and the second branch pipeline (leading to the power battery) should be maintained at a first ratio. The first ratio is positively correlated with the temperature difference, that is, the smaller the temperature difference, the less water is allocated to the vehicle compartment, the smaller the opening degree of the valve of the three-way valve connected to the first branch pipeline, and the larger the opening degree of the valve of the three-way valve connected to the second branch pipeline, and more water flow is directed to the battery heating system.

[0107] In some embodiments, when the battery temperature rise priority is higher than the vehicle interior temperature rise priority, the vehicle control system obtains the target battery temperature and the current battery temperature; and generates a valve control instruction based on the difference between the target battery temperature and the current battery temperature.

[0108] Optionally, when the value of the target battery temperature minus the current battery temperature is greater than a second threshold, the vehicle control system generates a third valve control instruction, and the third valve control instruction instructs to completely close the first branch pipeline.

[0109] Exemplarily, assuming that the current battery temperature is -5°C, the target battery temperature is 15°C, the second threshold is 10°C, and the temperature difference between the current battery temperature and the target battery temperature is greater than the second threshold, the vehicle control system generates a third valve control instruction, and the third valve control instruction instructs the three-way valve to completely close the valve connected to the first branch pipeline and open the valve connected to the second branch pipeline, so that all circulating water is directed to the power battery heating system.

[0110] Optionally, when the value of the target battery temperature minus the current battery temperature is not greater than a second threshold value, the vehicle control system generates a fourth valve control instruction based on the value of the target battery temperature minus the current battery temperature, and the fourth valve control instruction indicates a second ratio between the flow rate of the first branch pipeline and the flow rate of the second branch pipeline, and the second ratio is negatively correlated with the value of the target battery temperature minus the current battery temperature.

[0111] Exemplarily, assuming that the current battery temperature is 16°C, the target battery temperature is 18°C, the second threshold is 10°C, and the temperature difference between the current battery temperature and the target battery temperature is less than the second threshold, the vehicle control system generates a fourth valve control instruction, instructing the flow between the first branch pipeline and the second branch pipeline to be distributed according to a certain second ratio, and the second ratio is negatively correlated with the temperature difference, that is, the smaller the temperature difference, the more water is allocated to the battery, that is, the greater the degree of opening of the valve connecting the three-way valve and the second branch pipeline, the correspondingly reduced amount of water in the car, that is, the smaller the degree of opening of the valve connecting the three-way valve and the first branch pipeline.

[0112] In an embodiment of the present application, the vehicle control system generates valve control instructions based on the heating priority of the vehicle interior temperature and the battery temperature and specific demand information to ensure that the heat resources generated by the circulating water can be reasonably allocated, effectively improving the accuracy of heat energy distribution and improving the efficiency of heat energy distribution.

[0113] Based on the solutions shown in any one or more of the above embodiments, please refer to Figure 2 , Figure 2 : is a flow chart of a vehicle heating method provided by an embodiment of the present application. The vehicle heating method can be executed by a vehicle control system in a vehicle heating system. For example, the vehicle control system can be the above-mentioned Figure 1 The vehicle heating method may include steps 210, 220, 230, 240, 250 and 260, which are specifically implemented as follows:

[0114] Step 210: Obtain the heating method specified by the user; the vehicle heating methods include giving priority to heating with a diesel heater, giving priority to heating with a PTC heater, heating with a diesel heater, or heating with a PTC heater.

[0115] Step 220: Obtaining vehicle interior heating demand information of the vehicle and battery heating demand information of the power battery.

[0116] Step 230: Generate a heating instruction according to the vehicle heating mode, the vehicle heating interior heating demand information, and the vehicle heating battery heating demand information.

[0117] Step 240: Sending a vehicle heating instruction to at least one of the diesel heater and the PTC heater to control at least one of the diesel heater and the PTC heater to heat the circulating water in the circulating water pipeline.

[0118] Step 250: Generate a valve control instruction according to the vehicle heating interior heating demand information and the vehicle heating battery heating demand information.

[0119] Step 260: Send a vehicle heating valve control instruction to the three-way valve, where the vehicle heating valve control instruction is used to control the valve opening and closing degree of the three-way valve to control the flow ratio of the vehicle heating circulating water in the first branch pipeline and the second branch pipeline.

[0120] based on Figure 2The vehicle heating method, in some embodiments, may further include: displaying a heating mode selection interface; the heating mode selection interface includes a priority diesel heater heating option, a priority PTC heater heating option, a diesel heater heating option, and a PTC heater heating option; in response to a user's selection operation on a target option in the heating mode selection interface, obtaining the heating mode corresponding to the target option as the heating mode specified by the user.

[0121] based on Figure 2 In the vehicle heating method, in some embodiments, the vehicle control system displays PTC heating prompt information on the vehicle's instrument panel and / or central control screen when the heating instruction includes a first heating instruction corresponding to the PTC heater; the PTC heating prompt information is used to prompt the user that the PTC heater is currently turned on; the vehicle control system displays diesel heating prompt information on the vehicle's instrument panel and / or central control screen when the heating instruction includes a second heating instruction corresponding to the diesel heater; the diesel heating prompt information is used to prompt the user that the diesel heater is currently turned on.

[0122] based on Figure 2 In some embodiments of the vehicle heating method, the vehicle control system detects the remaining diesel amount through the diesel heater when the diesel heater is turned on; when the remaining diesel amount is less than a specified diesel amount threshold, a diesel shortage prompt message is displayed; the diesel shortage prompt message is used to prompt the user that the amount of diesel in the current vehicle is low; in response to the user's execution of the diesel heating operation in response to the diesel shortage prompt message, a stop heating instruction is sent to the diesel heater to turn off the diesel heater.

[0123] based on Figure 2 In some embodiments of the vehicle heating method, the above step 250 can be implemented as follows: obtaining the heating priorities of the interior temperature and the battery temperature; generating a valve control instruction according to the heating priorities of the interior temperature and the battery temperature, the interior heating demand information and the battery heating demand information.

[0124] In an embodiment of the present application, the vehicle control system selects the most suitable heating source (diesel heater or PTC heater) according to the heating method and in-vehicle heating demand information specified by the user, as well as the battery heating demand information of the power battery, to ensure that during the heating process of the vehicle, a heating source that matches the vehicle heating demand and user settings is selected to avoid heat consumption problems caused by selecting a high-power heating source; through valve control instructions, precise control of heat exchange between the circulating water pipeline and the cooling water pipeline can be achieved, unnecessary heat loss can be avoided, and the temperature of the power battery can be precisely controlled, thereby improving the efficiency of the vehicle's power battery, extending the charge and discharge cycle of the vehicle's power battery, and further improving the vehicle's endurance.

[0125] Based on the above Figure 1 and Figure 2 The systems and steps in the embodiments, the embodiments of the present application illustrate an electric vehicle heating system and a control method thereof, which are specifically as follows.

[0126] The embodiment of the present application provides an electric vehicle heating system and a control method thereof to solve the problem of short driving range of pure electric vehicles in the prior art when used in winter.

[0127] Please refer to Figure 3 , Figure 3 It is a structural schematic diagram of a water heating circuit provided by an embodiment of the present application.

[0128] like Figure 3 As shown, the water heating circuit is connected by a water pump 301, a water heating PTC 302, a diesel heater 303, a three-way valve 304, a water heating core 305, a heat exchanger 306, a battery 307 and a water pump 308.

[0129] Among them, the water heating PTC 302 is connected in series with the diesel heater 303 and the three-way valve 304; the three valves of the three-way valve 304 are respectively connected to the water heating core 305, the diesel heater 303 and the heat exchanger 306; the heat exchanger 306 is connected to the water pump 301, the battery 307 and the water pump 308; the water pump 301 is connected to the water heating core 305, the water heating PTC 302 and the heat exchanger 306.

[0130] In the embodiment of the present application, for the current electric vehicle passenger compartment heating, a water heating PTC is used to heat the water in the water circulation loop, and at the same time, the heat source is transferred to the passenger compartment through the heater core for heating the passenger compartment; at the same time, when the battery needs to be heated, the water in the water circulation loop is heated through the water heating PTC, and the battery cooling loop water is heated through the three-way valve and the heat exchanger to meet the battery heating demand, such as Figure 3 As shown, a diesel heater is connected in series in the original water circulation loop as a heat source for heating the circulating water. The diesel heater uses diesel as fuel and transfers heat to the passenger compartment and power battery through heated coolant, thereby improving the heating performance at low temperatures and reducing the power consumption of pure electric vehicles. The diesel heater can be divided into a fuel supply system, an exhaust system, a combustion system, and a water cooling system. As a new heat source, the diesel heater is connected in series to the PTC circuit of the whole vehicle, adding a heat source. By linking the heater and PTC control of the whole vehicle, the heating needs in different scenarios can be met, the use of PTC can be minimized, and the purpose of improving the endurance of pure electric vehicles in low temperature conditions can be achieved.

[0131] Please refer to Figure 4 , Figure 4 This is a flow chart of a method for heating an electric vehicle provided in an embodiment of the present application.

[0132] The above method includes three judgment steps 41, 42 and 43, which are as follows:

[0133] Step 41: Is there any heating requirement?

[0134] In the embodiment of the present application, the vehicle control system determines whether the vehicle currently has a heating demand. Specifically, the owner can choose whether to start the diesel heater from the screen of the vehicle terminal.

[0135] Step 42: Is the diesel heater started?

[0136] In an embodiment of the present application, when the vehicle starts the air conditioning for heating, the large screen displays the water heating PTC and diesel heater options. When the user selects the water heating PTC, the thermal management system adaptively generates a water temperature target according to the set temperature of the passenger compartment, the ambient temperature, and the indoor temperature and sends it to the PTC. The PTC receives the instruction target and performs power output heating according to the established water temperature target.

[0137] When the user chooses to turn on the diesel heater on the screen of the vehicle terminal, the diesel heater starts, and the thermal management system adaptively generates a water temperature target according to the set temperature of the passenger compartment, the ambient temperature, and the indoor temperature and sends it to the heater. The heater autonomously selects the combustion power level according to the water temperature target to heat the water to the target temperature.

[0138] When the vehicle's battery needs to be heated, the water heating PTC and diesel heater options are displayed on the screen of the vehicle terminal. When the user selects the water heating PTC, the thermal management system generates a water temperature target according to the battery's required temperature and sends it to the water heating PTC, and sends the three-way valve's opening target to the three-way valve. After the water heating PTC receives the command target, it performs power output heating according to the established water temperature target. When the large screen chooses to turn on the diesel heater, the diesel heater starts, and the thermal management system generates a water temperature target according to the battery's required temperature and sends it to the heater and the three-way valve opening target. The heater autonomously selects the combustion power gear to heat to the target water temperature according to the water temperature target. When both the passenger compartment and the battery need to be heated, the corresponding heating source is started according to the heating option selected by the owner, and the three-way valve opening is controlled to meet the needs of the passenger compartment and the battery.

[0139] Optionally, the above electric vehicle heating method can be set to an adaptive mode. When there is a heating demand, the diesel heater is preferentially selected as the heat source. When the heater capacity is insufficient or the fuel is missing, the PTC is turned on simultaneously to meet the thermal management requirements of the vehicle. According to this heating system, the use of PTC can be reduced to save battery power and improve the endurance of pure electric vehicles.

[0140] Step 43: Whether the target water temperature is reached.

[0141] After the vehicle's water heating PTC or diesel heater performs the heating operation, it is determined whether the current water temperature reaches the target water temperature. If the target water temperature is reached, the heating is stopped.

[0142] The above is only an embodiment of the present application and should not be regarded as limiting the present application. Professionals should understand that various deformations and modifications can be made to the embodiments to adapt to different application requirements. Therefore, the scope of the present application should be limited by the claims attached to the claims.

[0143] Please refer to Figure 5 , which shows a block diagram of a vehicle heating device provided by an exemplary embodiment of the present application, the vehicle heating device can be implemented as all or part of a computer device by hardware or a combination of hardware and software to achieve the above Figure 2 All or part of the steps in the embodiments shown. Figure 5 As shown, the vehicle control system includes:

[0144] The heating mode acquisition module 501 is used to acquire the heating mode specified by the user; the heating modes include preferentially using a diesel heater for heating, preferentially using a PTC heater for heating, using a diesel heater for heating, or using a PTC heater for heating;

[0145] The vehicle interior heating demand information acquisition module 502 is used to acquire the vehicle interior heating demand information and the battery heating demand information of the power battery;

[0146] A heating instruction generating module 503 is used to generate a heating instruction according to the heating mode, the in-vehicle heating requirement information and the battery heating requirement information;

[0147] A heating instruction sending module 504 is used to send a heating instruction to at least one of the diesel heater and the PTC heater to control at least one of the diesel heater and the PTC heater to heat the circulating water in the circulating water pipeline;

[0148] A valve control instruction generating module 505 is used to generate a valve control instruction according to the in-vehicle heating demand information and the battery heating demand information;

[0149] The valve control instruction sending module 506 is used to send a valve control instruction to the three-way valve, and the valve control instruction is used to control the valve opening and closing degree of the three-way valve to control the flow ratio of the circulating water in the first branch pipeline and the second branch pipeline.

[0150] Please refer to Figure 6 , Figure 66 is a schematic diagram of the structure of a computer device provided by an exemplary embodiment of the present application. The computer device 600 includes a central processing unit (CPU) 601, a system memory 604 including a random access memory (RAM) 602 and a read-only memory (ROM) 603, and a system bus 605 connecting the system memory 604 and the central processing unit 601. The computer device 600 also includes a basic input / output system (I / O system) 606 that helps transmit information between various devices in the computer, and a large-capacity storage device 607 for storing an operating system 613, application programs 614 and other program modules 615.

[0151] The basic input / output system 606 includes a display 608 for displaying information and an input device 609 such as a mouse and a keyboard for user inputting information. The display 608 and the input device 609 are connected to the central processing unit 601 through an input / output controller 610 connected to the system bus 605. The basic input / output system 606 may also include an input / output controller 610 for receiving and processing inputs from a plurality of other devices such as a keyboard, a mouse, or an electronic stylus. Similarly, the input / output controller 610 also provides output to a display screen, a printer, or other types of output devices.

[0152] The mass storage device 607 is connected to the central processing unit 601 through a mass storage controller (not shown) connected to the system bus 605. The mass storage device 607 and its associated computer readable media provide non-volatile storage for the computer device 600. That is, the mass storage device 607 may include a computer readable medium (not shown) such as a hard disk or a CD-ROM (Compact Disc Read-Only Memory) drive.

[0153] Without loss of generality, computer readable media may include computer storage media and communication media. Computer storage media include volatile and non-volatile, removable and non-removable media implemented by any method or technology for storing information such as computer readable instructions, data structures, program modules or other data. Computer storage media include RAM (Random Access Memory), ROM (Read-Only Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory or other solid-state storage technologies, CD-ROM, DVD (Digital Video Disc) or other optical storage, cassettes, magnetic tapes, disk storage or other magnetic storage devices. Of course, those skilled in the art will appreciate that computer storage media are not limited to the above. The above-mentioned system memory 604 and mass storage device 607 can be collectively referred to as memory.

[0154] The computer device 600 can be connected to the Internet or other network devices through a network interface unit 611 connected to the system bus 605 .

[0155] The memory also includes one or more programs, one or more programs are stored in the memory, and the central processing unit 601 implements the one or more programs by executing the one or more programs. Figure 2 All or part of the steps in the method shown.

[0156] In an exemplary embodiment, a chip is also provided. The chip includes a programmable logic circuit and / or program instructions. When the chip runs on a computer device, it is used to implement all or part of the steps of the method shown in the above embodiments of the present application.

[0157] In an exemplary embodiment, a computer program product is also provided, the computer program product includes computer instructions, the computer instructions are stored in a computer-readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor reads and executes the computer instructions from the computer-readable storage medium to implement all or part of the steps of the method shown in the above-mentioned various embodiments of the present application.

[0158] In an exemplary embodiment, a computer-readable storage medium is also provided, in which a computer program is stored. The computer program is loaded and executed by a processor to implement all or part of the steps of the method shown in the above-mentioned embodiments of the present application.

[0159] A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware or by instructing related hardware through a program. The above program may be stored in a computer-readable storage medium. The above storage medium may be a read-only memory, a disk or an optical disk, etc.

[0160] Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented with hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein the communication media include any media that facilitates the transmission of a computer program from one place to another. The storage medium can be any available medium that a general or special-purpose computer can access.

[0161] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A vehicle heating system, characterized in that: The vehicle heating system includes: a PTC heater, a diesel heater, a heater core, a heat exchanger, a power battery, a first water pump, a second water pump, a three-way valve, a circulating water pipeline, a cooling water pipeline and a vehicle control system; The circulating water pipeline includes a main pipeline, a first branch pipeline and a second branch pipeline; The PTC heater, the diesel heater, and the first water pump are arranged in series on the main pipe; The three-way valve is arranged at one end of the main pipeline, and the three-way valve is respectively connected to the main pipeline, the first branch pipeline and the second branch pipeline; The other end of the main pipeline is connected to the first branch pipeline and the second branch pipeline respectively; The heater core is arranged on the first branch pipe, and the heat exchanger is arranged on the second branch pipe; The heat exchanger, the second water pump and the power battery are connected via a cooling water pipeline of the power battery; The PTC heater and the diesel heater are electrically connected to the vehicle control system respectively.

2. The vehicle heating system according to claim 1, characterized in that: The vehicle control system is used to: Obtaining a heating mode specified by a user; the heating mode includes preferentially using the diesel heater for heating, preferentially using the PTC heater for heating, using the diesel heater for heating, or using the PTC heater for heating; Acquiring in-vehicle heating demand information of the vehicle and battery heating demand information of the power battery; generating a heating instruction according to the heating method specified by the user, the in-vehicle heating demand information, and the battery heating demand information; sending the heating instruction to at least one of the diesel heater and the PTC heater to control at least one of the diesel heater and the PTC heater to heat the circulating water in the circulating water pipeline; generating a valve control instruction according to the in-vehicle heating demand information and the battery heating demand information; The valve control instruction is sent to the three-way valve, and the valve control instruction is used to control the valve opening and closing degree of the three-way valve to control the flow ratio of the circulating water in the first branch pipeline and the second branch pipeline.

3. The vehicle heating system according to claim 2, characterized in that: The vehicle control system is used to: Displaying a heating mode selection interface; the heating mode selection interface includes a priority diesel heater heating option, a priority PTC heater heating option, a diesel heater heating option, and a PTC heater heating option; In response to a selection operation performed by a user on a target option in the heating mode selection interface, a heating mode corresponding to the target option is acquired as a heating mode specified by the user.

4. The vehicle heating system according to claim 2, characterized in that: The vehicle control system is used to: In the case where the heating instruction includes a first heating instruction corresponding to the PTC heater, a PTC heating prompt information is displayed on the instrument panel and / or the central control screen of the vehicle; the PTC heating prompt information is used to prompt the user that the PTC heater is currently turned on; When the heating instruction includes a second heating instruction corresponding to the diesel heater, diesel heating prompt information is displayed on the instrument panel and / or central control screen of the vehicle; the diesel heating prompt information is used to prompt the user that the diesel heater is currently turned on.

5. The vehicle heating system according to claim 2, characterized in that: The vehicle control system is further used to: When the diesel heater is turned on, detecting the remaining diesel amount through the diesel heater; When the remaining diesel amount is less than a specified diesel amount threshold, a diesel shortage prompt message is displayed; the diesel shortage prompt message is used to prompt the user that the diesel amount in the vehicle is currently low; In response to the user's operation of stopping diesel heating in response to the diesel shortage prompt information, a stop heating instruction is sent to the diesel heater to turn off the diesel heater.

6. The vehicle heating system according to any one of claims 2 to 5, characterized in that: The generating of the valve control instruction according to the in-vehicle heating demand information and the battery heating demand information includes: Get the heating priority of the vehicle interior temperature and battery temperature; The valve control instruction is generated according to the respective heating priorities of the in-vehicle temperature and the battery temperature, the in-vehicle heating requirement information, and the battery heating requirement information.

7. A vehicle heating method, characterized in that: The method is executed by a vehicle control system in a vehicle heating system as shown in any one of claims 1 to 6, and the method comprises: Obtaining a heating mode specified by a user; the heating mode includes preferentially using the diesel heater for heating, preferentially using the PTC heater for heating, using the diesel heater for heating, or using the PTC heater for heating; Acquiring in-vehicle heating demand information of the vehicle and battery heating demand information of the power battery; generating a heating instruction according to the heating mode, the in-vehicle heating demand information, and the battery heating demand information; sending the heating instruction to at least one of the diesel heater and the PTC heater to control at least one of the diesel heater and the PTC heater to heat the circulating water in the circulating water pipeline; generating a valve control instruction according to the in-vehicle heating demand information and the battery heating demand information; The valve control instruction is sent to the three-way valve, and the valve control instruction is used to control the valve opening and closing degree of the three-way valve to control the flow ratio of the circulating water in the first branch pipeline and the second branch pipeline.

8. A vehicle heating device, characterized in that: The device comprises: A heating mode acquisition module, used to acquire a heating mode specified by a user; the heating mode includes preferentially using the diesel heater for heating, preferentially using the PTC heater for heating, using the diesel heater for heating, or using the PTC heater for heating; An in-vehicle heating demand information acquisition module, used to acquire in-vehicle heating demand information of the vehicle and battery heating demand information of the power battery; A heating instruction generating module, used for generating a heating instruction according to the heating mode, the in-vehicle heating requirement information and the battery heating requirement information; a heating instruction sending module, used for sending the heating instruction to at least one of the diesel heater and the PTC heater, so as to control at least one of the diesel heater and the PTC heater to heat the circulating water in the circulating water pipeline; A valve control instruction generating module, used for generating a valve control instruction according to the in-vehicle heating demand information and the battery heating demand information; The valve control instruction sending module is used to send the valve control instruction to the three-way valve, and the valve control instruction is used to control the valve opening and closing degree of the three-way valve to control the flow ratio of the circulating water in the first branch pipeline and the second branch pipeline.

9. A computer-readable storage medium, characterized in that: The storage medium stores instructions, which are executed by a processor of a computer device to implement the vehicle heating method as claimed in claim 7 .

10. A vehicle, characterized in that: The vehicle includes the vehicle heating system as claimed in claim 1, and the vehicle heating system includes a PTC heater, a diesel heater, a three-way valve, a heater core, a heat exchanger, a power battery, a first water pump, a second water pump, a three-way valve, a circulating water pipeline, a cooling water pipeline and a vehicle control system; the vehicle can be executed to implement the vehicle heating method as claimed in claim 7.

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