Vehicle waste heat control method, device and equipment, storage medium and computer program product

Abstract

The invention discloses a vehicle waste heat control method, device and equipment, a storage medium and a computer program product, and relates to the technical field of vehicle heat management.The method comprises the steps that when the water temperature of an engine of a vehicle is higher than a first preset value, whether a passenger compartment or a battery of the vehicle has the heating requirement or not is judged; if the passenger compartment has the heating requirement and the battery does not have the heating requirement, waste heat control is conducted on the vehicle based on the first control logic; and if the battery has the heating requirement and the passenger compartment does not have the heating requirement, waste heat control is conducted on the vehicle based on second control logic. The invention provides a vehicle waste heat control method for recycling waste heat of a whole vehicle, namely, when redundant heat of an engine can be utilized, waste heat control on the passenger compartment side of the vehicle is carried out based on first control logic, and waste heat control on the battery heat exchange side of the vehicle is carried out based on second control logic. Therefore, the vehicle energy consumption is reduced, the waste heat utilization rate of the whole vehicle is improved, and the endurance of the vehicle is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle thermal management, and particularly to a method, device, equipment, storage medium and computer program product for controlling waste heat of a vehicle. Background Technique

[0002] With the market demand, the trend of energy consumption saving for new energy vehicles is becoming more and more obvious, and the technical necessity is becoming stronger and stronger.

[0003] In traditional new energy vehicle thermal control methods, usually only a separate independent heat source heating heater is used to solve the heat demand of new energy vehicles. Although this traditional method can quickly solve the heat demand of the vehicle, it causes relatively large energy loss to the vehicle, and at the same time, the utilization rate of waste heat of the whole vehicle is relatively low, thus having a greater impact on the vehicle's endurance. Therefore, there is an urgent need in the industry for a thermal control method that can reduce vehicle energy consumption, improve the utilization rate of waste heat of the whole vehicle to increase vehicle endurance. Summary of the Invention

[0004] The main purpose of the present application is to provide a method, device, equipment, storage medium and computer program product for controlling waste heat of a vehicle, aiming to solve the technical problems that the existing new energy vehicle thermal control method has relatively large energy loss to the vehicle and relatively low utilization rate of waste heat of the whole vehicle.

[0005] To achieve the above object, the present application provides a method for controlling waste heat of a vehicle, and the method includes the following steps:

[0006] When the engine water temperature of the vehicle is higher than a first preset value, determine whether there is a heating demand in the passenger compartment or the battery of the vehicle;

[0007] If there is a heating demand in the passenger compartment and there is no heating demand in the battery, perform waste heat control on the vehicle based on a first control logic, and the first control logic is used to determine the opening ratio of the three-way valve leading to the passenger compartment side in the vehicle waste heat control system;

[0008] If there is a heating demand in the battery and there is no heating demand in the passenger compartment, perform waste heat control on the vehicle based on a second control logic, and the second control logic is used to determine the opening ratio of the three-way valve leading to the battery heat exchange side in the vehicle waste heat control system.

[0009] In an embodiment, the three-way valve includes a first three-way valve and a second three-way valve, and the step of performing waste heat control on the vehicle based on the first control logic includes:

[0010] Based on the first control logic, determine a first mapping value corresponding to the ambient temperature of the vehicle at the current moment, and use the first mapping value as the first opening degree corresponding to the first three-way valve in the vehicle waste heat control system on the passenger compartment side of the vehicle;

[0011] Determine a second mapping value corresponding to the engine water temperature based on the first control logic, and use the second mapping value as the second opening degree corresponding to the second three-way valve in the passenger compartment side of the vehicle in the vehicle waste heat control system;

[0012] Perform waste heat control on the vehicle according to the first opening degree and the second opening degree.

[0013] In one embodiment, the step of performing waste heat control on the vehicle based on the second control logic includes:

[0014] Determine a third mapping value corresponding to the engine water temperature based on the second control logic, and use the third mapping value as the third opening degree corresponding to the first three-way valve in the battery heat exchange side of the vehicle in the vehicle waste heat control system;

[0015] Determine a fourth opening degree corresponding to the second three-way valve in the battery heat exchange side of the vehicle waste heat control system when the vehicle performs battery heating based on the second control logic;

[0016] Perform waste heat control on the vehicle according to the third opening degree and the fourth opening degree.

[0017] In one embodiment, after the step of determining whether there is a heating requirement for the passenger compartment or the battery of the vehicle when the engine water temperature of the vehicle is higher than a first preset value, the method further includes:

[0018] If both the passenger compartment and the battery have heating requirements, adjust the three-way valve in the vehicle waste heat control system to the fully open state, and heat the passenger compartment and the battery through the water heating PTC;

[0019] When it is monitored that the engine water temperature is higher than a second preset value, turn off the water heating PTC, and heat the passenger compartment and the battery through the engine hot water.

[0020] In one embodiment, the step of determining whether there is a heating requirement for the passenger compartment or the battery of the vehicle includes:

[0021] If a heating instruction issued by the user is received or it is detected that the ambient temperature of the vehicle is lower than a third preset value, it is determined that there is a heating requirement for the passenger compartment of the vehicle;

[0022] If it is detected that the battery temperature of the vehicle is lower than a fourth preset value, it is determined that there is a heating requirement for the battery of the vehicle.

[0023] In addition, to achieve the above object, the present application also proposes a vehicle waste heat control system, and the vehicle waste heat control system is applied to the steps of the vehicle waste heat control method as described above.

[0024] In addition, to achieve the above object, the present application also provides a vehicle waste heat control device, which includes:

[0025] A demand judgment module, configured to judge whether there is a heating demand in the passenger compartment or the battery of the vehicle when the engine water temperature of the vehicle is higher than a first preset value;

[0026] A first control module, configured to, if there is a heating demand in the passenger compartment and there is no heating demand in the battery, perform waste heat control on the vehicle based on a first control logic, where the first control logic is used to determine the opening ratio of the three-way valve leading to the passenger compartment side in the vehicle waste heat control system;

[0027] A second control module, configured to, if there is a heating demand in the battery and there is no heating demand in the passenger compartment, perform waste heat control on the vehicle based on a second control logic, where the second control logic is used to determine the opening ratio of the three-way valve leading to the battery heat exchange side in the vehicle waste heat control system.

[0028] In addition, to achieve the above object, the present application also provides a vehicle waste heat control device, which includes: a memory, a processor, and a vehicle waste heat control program stored on the memory and executable on the processor, where the vehicle waste heat control program is configured to implement the steps of the vehicle waste heat control method as described above.

[0029] In addition, to achieve the above object, the present application also provides a storage medium, which is a computer-readable storage medium, and a vehicle waste heat control program is stored on the storage medium. When the vehicle waste heat control program is executed by a processor, the steps of the vehicle waste heat control method as described above are implemented.

[0030] In addition, to achieve the above object, the present invention also provides a computer program product, which includes a vehicle waste heat control program. When the vehicle waste heat control program is executed by a processor, the steps of the vehicle waste heat control method as described above are implemented.

[0031] When the engine water temperature of the vehicle in this application is higher than the first preset value, it is determined whether there is a heating demand in the passenger compartment or the battery of the vehicle; if there is a heating demand in the passenger compartment and there is no heating demand in the battery, the waste heat control of the vehicle is performed based on the first control logic, and the first control logic is used to determine the opening ratio of the three-way valve leading to the passenger compartment side in the vehicle waste heat control system; if there is a heating demand in the battery and there is no heating demand in the passenger compartment, the waste heat control of the vehicle is performed based on the second control logic, and the second control logic is used to determine the opening ratio of the three-way valve leading to the battery heat exchange side in the vehicle waste heat control system. Compared with the traditional heat control method, the above method in this application proposes a vehicle waste heat control method for reusing the waste heat of the whole vehicle, that is, when there is excess heat in the engine that can be utilized, the waste heat control of the passenger compartment side of the vehicle is performed based on the first control logic, and the waste heat control of the battery heat exchange side of the vehicle is performed based on the second control logic, thereby reducing the vehicle energy consumption while improving the waste heat utilization rate of the whole vehicle, and further increasing the vehicle's cruising range. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings here are incorporated into the specification and form a part of this specification, showing the embodiments in line with this application, and are used together with the specification to explain the principles of this application.

[0033] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 It is a schematic flowchart of the first embodiment of the vehicle waste heat control method of this application;

[0035] Figure 2 It is a schematic structural diagram of the vehicle waste heat control system in the vehicle waste heat control method of this application;

[0036] Figure 3 It is a schematic flowchart of the second embodiment of the vehicle waste heat control method of this application;

[0037] Figure 4 It is a schematic flowchart of the third embodiment of the vehicle waste heat control method of this application;

[0038] Figure 5 It is a schematic block diagram of the first embodiment of the vehicle waste heat control device of this application;

[0039] Figure 6 It is a schematic structural diagram of the vehicle waste heat control device in the hardware operating environment related to the solution of the embodiment of this application.

[0040] The realization, functional features, and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0041] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0042] It should be noted that the execution subject of the embodiments of the present application can be a computing service device with data processing, network communication, and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of implementing the above functions, such as the above-mentioned vehicle waste heat control device. The following will take the vehicle waste heat control device as an example to illustrate the following embodiments.

[0043] The embodiments of the present application provide a vehicle waste heat control method, referring to Figure 1 , Figure 1 which is a schematic flowchart of the first embodiment of the vehicle waste heat control method of the present application.

[0044] In this embodiment, the vehicle waste heat control method includes the following steps:

[0045] Step S10: When the engine water temperature of the vehicle is higher than a first preset value, determine whether there is a heating demand in the passenger compartment or the battery of the vehicle.

[0046] It should be noted that the above vehicle can refer to a new energy vehicle including an engine and a power battery, such as a plug-in (including range-extended) hybrid heavy truck.

[0047] It should be understood that the above first preset value can be the target water temperature of the engine when the vehicle is running normally, and this target water temperature can be specifically calibrated according to the vehicle model (for example, 60°C). Since the engine temperature rise situations of different vehicle models are inconsistent, the first preset values corresponding to different vehicle models may be different.

[0048] In specific implementation, when the engine water temperature of the vehicle is higher than the first preset value, it means that there is still excess heat that can be utilized while the engine is ensuring normal operation. Therefore, at this time, it can be determined whether there is a heating demand in the passenger compartment or the battery of the vehicle. If there is, this part of the excess heat can be used to meet the above heating demand, thereby achieving the effect of improving the waste heat utilization rate of the whole vehicle.

[0049] Step S20: If there is a heating demand in the passenger compartment and there is no heating demand in the battery, perform waste heat control on the vehicle based on a first control logic, and the first control logic is used to determine the opening ratio of the three-way valve leading to the passenger compartment side in the vehicle waste heat control system.

[0050] It should be understood that the above first control logic may include different opening ratios of the three-way valve leading to the passenger compartment side in the vehicle waste heat control system corresponding to several different vehicle conditions.

[0051] To more clearly describe the vehicle waste heat control process, reference can be made to Figure 2 , Figure 2 which is a schematic structural diagram of the vehicle waste heat control system in the vehicle waste heat control method of this application. Among them, the engine system is used to provide power for the whole vehicle, the engine expansion water tank is used for exhaust, the engine radiator and the low-temperature radiator are used to dissipate heat from the hot water in the vehicle waste heat control system loop, the heat exchange water pump such as the electric drive and the motor is used to provide flow power to pump the hot water in the electric drive of the motor into the radiator, the low-temperature radiator such as the electric drive and the motor is used to dissipate heat from the hot water in the electric drive of the motor, the three-way valve 1 and the three-way valve 2 are used to switch the water path of the vehicle waste heat control system to change the water flow process, the warm air circuit electronic water pump is used to provide flow power for the hot water in the vehicle waste heat control system loop, the water heating PTC (Positive Temperature Coefficient) heater is used to heat the flowing water, the warm air core is used to pump the hot water in the vehicle waste heat control system loop into the air conditioner main unit to achieve passenger compartment heating, the blower is used to achieve air circulation in the cockpit, and the battery heating water-water heat exchanger is used to achieve battery heating.

[0052] In a specific implementation, in combination with Figure 2 it can be seen that if there is a heating demand in the passenger compartment and there is no heating demand in the battery, then at this time, the opening ratio of the three-way valve leading to the passenger compartment side (i.e., corresponding to Figure 2 the warm air core in

[0053] Step S30: If there is a heating demand in the battery and there is no heating demand in the passenger compartment, then waste heat control is performed on the vehicle based on a second control logic, and the second control logic is used to determine the opening ratio of the three-way valve leading to the battery heat exchange side in the vehicle waste heat control system.

[0054] It should be understood that the above second control logic may include different opening ratios of the three-way valve leading to the battery heat exchange side in the vehicle waste heat control system corresponding to several different vehicle conditions.

[0055] In a specific implementation, in combination with Figure 2 it can be seen that if there is a heating demand in the battery and there is no heating demand in the passenger compartment, then at this time, the opening ratio of the three-way valve leading to the battery heat exchange side (i.e., corresponding to Figure 2The opening ratio of the water-water heat exchanger for battery heating in , and then based on the opening ratio of the three-way valve leading to the battery heat exchange side, the vehicle's waste heat is controlled.

[0056] In this embodiment, when the engine water temperature of the vehicle is higher than the first preset value, it is determined whether there is a heating demand in the passenger compartment or the battery of the vehicle; if there is a heating demand in the passenger compartment and there is no heating demand in the battery, the vehicle's waste heat is controlled based on the first control logic, and the first control logic is used to determine the opening ratio of the three-way valve leading to the passenger compartment side in the vehicle's waste heat control system; if there is a heating demand in the battery and there is no heating demand in the passenger compartment, the vehicle's waste heat is controlled based on the second control logic, and the second control logic is used to determine the opening ratio of the three-way valve leading to the battery heat exchange side in the vehicle's waste heat control system. Compared with the traditional heat control method, the above method in this embodiment proposes a vehicle waste heat control method for reusing the waste heat of the entire vehicle, that is, when there is excess heat that can be utilized in the engine, the waste heat of the passenger compartment side of the vehicle is controlled based on the first control logic, and the waste heat of the battery heat exchange side of the vehicle is controlled based on the second control logic, thereby reducing the vehicle's energy consumption while improving the utilization rate of the vehicle's waste heat, and further increasing the vehicle's cruising range.

[0057] Reference Figure 3 , Figure 3 is a schematic flow chart of the second embodiment of the vehicle waste heat control method of this application.

[0058] In a feasible implementation manner, the three-way valve includes a first three-way valve and a second three-way valve, and the step S20 may include:

[0059] Step S201: Determine the first mapping value corresponding to the ambient temperature of the vehicle at the current moment based on the first control logic, and use the first mapping value as the first opening degree corresponding to the first three-way valve in the vehicle's waste heat control system on the passenger compartment side of the vehicle.

[0060] Step S202: Determine the second mapping value corresponding to the engine water temperature based on the first control logic, and use the second mapping value as the second opening degree corresponding to the second three-way valve in the vehicle's waste heat control system on the passenger compartment side of the vehicle.

[0061] It should be noted that the above first three-way valve corresponds to Figure 2 the three-way valve 1 in , and the above second three-way valve corresponds to Figure 2 the three-way valve 2 in .

[0062] Step S203: Control the waste heat of the vehicle according to the first opening degree and the second opening degree.

[0063] Since the engine temperature rise conditions corresponding to different vehicle models may vary, the mapping values in the first control logic corresponding to different vehicle models may also differ. Specifically, the tester can conduct tests on the actual vehicle model and record data to obtain the mapping value corresponding to the actual vehicle model, which is not restricted here. Exemplarily, by default, assuming the ambient temperature is higher than 26°C, the first three-way valve can avoid the tangential passenger compartment side (i.e., the first opening degree is 0%), to avoid thermal effects on the passenger compartment; assuming the ambient temperature is lower than 10°C, the first three-way valve can be tangential to the passenger compartment side by 40% (i.e., the first opening degree is 40%); assuming the ambient temperature is lower than 0°C, the first three-way valve can be tangential to the passenger compartment side by 65% (i.e., the first opening degree is 65%); assuming the ambient temperature is lower than -5°C, the first three-way valve can be tangential to the passenger compartment side by 100% (i.e., the first opening degree is 100%). In addition, the higher the engine water temperature, the more the second three-way valve tends to be in the 1-3 connection. For example, when the engine water temperature is higher than 70°C, the second opening degree corresponding to the second three-way valve on the passenger compartment side (i.e., the second three-way valve tends to be in the 1-3 connection) can be 80%.

[0064] In specific implementation, since the first control logic includes different opening degree ratios of the three-way valve leading to the passenger compartment side in the vehicle waste heat control system corresponding to several different vehicle conditions. Therefore, the opening degree of the three-way valve on the passenger compartment side in the vehicle waste heat control system can be determined in the first control logic according to the real-time vehicle condition at the current moment (such as the ambient temperature of the vehicle, the engine water temperature, the weather climate, etc.), and then the three-way valve in the vehicle waste heat control system is controlled with the opening degree on the passenger compartment side as the target opening degree, so as to realize the waste heat control of the vehicle (i.e., the waste heat control of the vehicle is carried out according to the above first opening degree and the above second opening degree).

[0065] In a feasible implementation manner, the step S30 may include:

[0066] Step S301: Determine the third mapping value corresponding to the engine water temperature based on the second control logic, and use the third mapping value as the third opening degree of the first three-way valve in the battery heat exchange side of the vehicle in the vehicle waste heat control system.

[0067] It should be understood that the third opening degree corresponding to the first three-way valve on the battery heat exchange side (i.e., the first three-way valve tends to be in the 1-2 connection) can refer to the description in step S203, that is, the principle of obtaining the third opening degree is similar to the description in step S203, which will not be elaborated here.

[0068] Step S302: Determine the fourth opening degree of the second three-way valve in the battery heat exchange side of the vehicle waste heat control system when the vehicle conducts battery heating based on the second control logic.

[0069] Combined Figure 2As can be seen, when the battery has a heating requirement and the passenger compartment has no heating requirement, the second three-way valve does not need to lead to the heater core on the passenger compartment side. Therefore, the above fourth opening can be 1-2 way (i.e., 100% leading to the battery heating water-water heat exchanger on the battery heat exchange side).

[0070] Step S303: Perform waste heat control on the vehicle according to the third opening and the fourth opening.

[0071] In a specific implementation, since the second control logic includes different opening ratios of the three-way valve leading to the battery heat exchange side in the vehicle waste heat control system corresponding to several different vehicle conditions. Therefore, the opening of the three-way valve on the battery heat exchange side in the vehicle waste heat control system can be determined in the second control logic according to the real-time vehicle condition at the current moment (such as the ambient temperature of the vehicle, the engine water temperature, the weather climate, etc.), and then the three-way valve in the vehicle waste heat control system is controlled with the opening on the battery heat exchange side as the target opening, so as to realize the waste heat control of the vehicle (that is, perform waste heat control on the vehicle according to the above third opening and the above fourth opening).

[0072] In this embodiment, based on the first control logic, the first mapping value corresponding to the ambient temperature of the vehicle at the current moment is determined, and the first mapping value is used as the first opening corresponding to the first three-way valve on the passenger compartment side of the vehicle waste heat control system; based on the first control logic, the second mapping value corresponding to the engine water temperature is determined, and the second mapping value is used as the second opening corresponding to the second three-way valve on the passenger compartment side of the vehicle waste heat control system; waste heat control is performed on the vehicle according to the first opening and the second opening; based on the second control logic, the third mapping value corresponding to the engine water temperature is determined, and the third mapping value is used as the third opening corresponding to the first three-way valve on the battery heat exchange side of the vehicle waste heat control system; based on the second control logic, the fourth opening corresponding to the second three-way valve on the battery heat exchange side in the vehicle waste heat control system when the vehicle performs battery heating is determined; waste heat control is performed on the vehicle according to the third opening and the fourth opening. In the above method of this embodiment, when only the passenger compartment has a heating requirement, based on the first control logic, the first opening and the second opening corresponding to the first three-way valve and the second three-way valve on the passenger compartment side are determined respectively, and then the valve openings of each three-way valve in the vehicle waste heat control system are controlled according to the first opening and the second opening; when only the battery has a heating requirement, based on the second control logic, the third opening and the fourth opening corresponding to the first three-way valve and the second three-way valve on the battery heat exchange side are determined, and then the valve openings of each three-way valve in the vehicle waste heat control system are controlled according to the third opening and the fourth opening, so as to realize the purpose of saving energy through the waste heat control of the vehicle.

[0073] Reference Figure 4 , Figure 4 is a schematic flowchart of the third embodiment of the vehicle waste heat control method of the present application.

[0074] In a feasible implementation manner, after the step S10, the following steps may further be included:

[0075] Step S40: If both the occupant compartment and the battery have a heating requirement, adjust the three-way valve in the vehicle waste heat control system to the fully open state, and heat the occupant compartment and the battery through the water heating PTC.

[0076] Step S50: When it is monitored that the engine water temperature is higher than a second preset value, turn off the water heating PTC, and heat the occupant compartment and the battery through the engine hot water.

[0077] It should be noted that to avoid the situation of sudden cold and heat in the occupant compartment when the engine is just started, the vehicle waste heat control system requires the assistance of the water heating PTC. Based on this, the above second preset value may be the critical value of the engine water temperature to avoid sudden cold and heat in the occupant compartment, that is, when the engine water temperature is higher than this critical value, there is no need for the water heating PTC to assist in heating to save energy consumption. This critical value may vary for different vehicle models (for example, for some range-extended vehicle models, it is 65 °C), and no limitation is imposed here.

[0078] In a specific implementation, if both the occupant compartment and the battery have a heating requirement, the waste heat in the vehicle waste heat control system can be jointly used for heating on the occupant compartment side and the battery heat exchange side. Therefore, the three-way valve in the vehicle waste heat control system can be adjusted to the fully open state, that is, both the first three-way valve and the second three-way valve are adjusted to the 1-2 connection and the 1-3 connection.

[0079] In a feasible implementation manner, the step S10 may include:

[0080] Step S101: If a heating instruction issued by the user is received or it is detected that the ambient temperature of the vehicle is lower than a third preset value, it is determined that the occupant compartment of the vehicle has a heating requirement.

[0081] Step S102: If it is detected that the battery temperature of the vehicle is lower than a fourth preset value, it is determined that the battery of the vehicle has a heating requirement.

[0082] It should be understood that the above third preset value and fourth preset value can be flexibly set based on the actual usage scenario. Exemplarily, when it is detected that the ambient temperature is too low (for example, lower than 5 °C) or the user actively issues a heating instruction to the vehicle, it can be determined that the occupant compartment of the vehicle has a heating requirement at this time; when the battery temperature is lower than a specific temperature at which the working performance is optimal (for example, 25 °C), to ensure the performance and service life of the battery, it can be determined that the battery of the vehicle has a heating requirement at this time.

[0083] In this embodiment, if both the passenger compartment and the battery have heating requirements, the three-way valve in the vehicle waste heat control system is adjusted to the fully open state, and the passenger compartment and the battery are heated by the water heating PTC; when it is monitored that the engine water temperature is higher than the second preset value, the water heating PTC is turned off, and the passenger compartment and the battery are heated by the engine hot water; if a heating instruction issued by the user is received or it is detected that the ambient temperature of the vehicle is lower than the third preset value, it is determined that the passenger compartment of the vehicle has a heating requirement; if it is detected that the battery temperature of the vehicle is lower than the fourth preset value, it is determined that the battery of the vehicle has a heating requirement. In the above method of this embodiment, when both the passenger compartment and the battery have heating requirements, the three-way valve in the vehicle waste heat control system is adjusted to the fully open state, and the passenger compartment and the battery are heated by the water heating PTC, thereby avoiding the situation of sudden cold and heat in the passenger compartment when the engine is just started; at the same time, when the engine water temperature of the vehicle is higher than the first preset value, the user instruction, the ambient temperature and the battery temperature are obtained, so as to accurately judge whether the passenger compartment or the battery of the vehicle has a heating requirement.

[0084] This application also provides a vehicle waste heat control system, and the vehicle waste heat control system is applied to the steps of the vehicle waste heat control method as described above. The specific composition of the vehicle waste heat control system of this application can be referred to Figure 2 , that is, it includes an engine system, an engine expansion water tank, an engine radiator, a low-temperature radiator, a low-temperature radiator such as an electric drive and a motor, a three-way valve 1, a three-way valve 2, a warm air circuit electronic water pump, a water heating PTC, a warm air core, a blower, and a water-water heat exchanger for battery heating. Among them, the engine system is respectively connected to the engine radiator, the engine expansion water tank, the warm air circuit electronic water pump, and the three-way valve 1, the three-way valve 1 is respectively connected to the engine system, the warm air core, and the water-water heat exchanger for battery heating, and the three-way valve 2 is respectively connected to the water heating PTC, the warm air core, and the water-water heat exchanger for battery heating.

[0085] Refer to Figure 5 , Figure 5 which is the structural block diagram of the first embodiment of the vehicle waste heat control device of this application.

[0086] As Figure 5 shown, the vehicle waste heat control device proposed in the embodiment of this application includes:

[0087] A demand judgment module 501, configured to judge whether the passenger compartment or the battery of the vehicle has a heating requirement when the engine water temperature of the vehicle is higher than the first preset value;

[0088] The first control module 502 is configured to, if there is a heating demand in the passenger compartment and there is no heating demand in the battery, perform waste heat control on the vehicle based on a first control logic, where the first control logic is used to determine the opening ratio of the three-way valve leading to the passenger compartment side in the vehicle waste heat control system.

[0089] The second control module 503 is configured to, if there is a heating demand in the battery and there is no heating demand in the passenger compartment, perform waste heat control on the vehicle based on a second control logic, where the second control logic is used to determine the opening ratio of the three-way valve leading to the battery heat exchange side in the vehicle waste heat control system.

[0090] In this embodiment, when the engine water temperature of the vehicle is higher than a first preset value, it is determined whether there is a heating demand in the passenger compartment or the battery of the vehicle; if there is a heating demand in the passenger compartment and there is no heating demand in the battery, waste heat control is performed on the vehicle based on the first control logic, where the first control logic is used to determine the opening ratio of the three-way valve leading to the passenger compartment side in the vehicle waste heat control system; if there is a heating demand in the battery and there is no heating demand in the passenger compartment, waste heat control is performed on the vehicle based on the second control logic, where the second control logic is used to determine the opening ratio of the three-way valve leading to the battery heat exchange side in the vehicle waste heat control system. Compared with the traditional heat control method, the above method in this embodiment proposes a vehicle waste heat control method for reusing the waste heat of the entire vehicle, that is, when there is excess heat that can be utilized in the engine, waste heat control on the passenger compartment side of the vehicle is performed based on the first control logic, and waste heat control on the battery heat exchange side of the vehicle is performed based on the second control logic, thereby reducing the vehicle energy consumption while improving the waste heat utilization rate of the entire vehicle, and further increasing the vehicle's cruising range.

[0091] Based on the first embodiment of the vehicle waste heat control device of the present application, a second embodiment of the vehicle waste heat control device of the present application is proposed.

[0092] In this embodiment, the first control module 502 is further configured to, if there is a heating demand in the passenger compartment and there is no heating demand in the battery, determine the opening of the passenger compartment side corresponding to the three-way valve in the vehicle waste heat control system based on the first control logic; control the valve opening of the three-way valve according to the opening of the passenger compartment side to perform waste heat control on the vehicle.

[0093] Further, the three-way valve includes a first three-way valve and a second three-way valve, the opening degrees on the occupant compartment side include a first opening degree and a second opening degree, and the first control module 502 is further configured to determine a first mapping value corresponding to the ambient temperature of the vehicle at the current moment based on a first control logic, and use the first mapping value as the first opening degree corresponding to the first three-way valve on the occupant compartment side in the vehicle waste heat control system; determine a second mapping value corresponding to the engine water temperature based on the first control logic, and use the second mapping value as the second opening degree corresponding to the second three-way valve on the occupant compartment side in the vehicle waste heat control system.

[0094] Further, the second control module 503 is further configured to, if the battery has a heating requirement and the occupant compartment has no heating requirement, determine an opening degree on the battery heat exchange side corresponding to the three-way valve in the vehicle waste heat control system based on a second control logic; control the valve opening degree of the three-way valve according to the opening degree on the battery heat exchange side to perform waste heat control on the vehicle.

[0095] Further, the three-way valve includes a first three-way valve and a second three-way valve, the opening degrees on the battery heat exchange side include a third opening degree and a fourth opening degree, and the second control module 503 is further configured to determine a third mapping value corresponding to the engine water temperature based on a second control logic, and use the third mapping value as the third opening degree corresponding to the first three-way valve on the battery heat exchange side in the vehicle waste heat control system; determine the fourth opening degree corresponding to the second three-way valve on the battery heat exchange side in the vehicle waste heat control system when the vehicle performs battery heating based on the second control logic.

[0096] Further, the demand judgment module 501 is further configured to, if both the occupant compartment and the battery have heating requirements, adjust the three-way valve in the vehicle waste heat control system to a fully open state, and heat the occupant compartment and the battery through a water heating PTC; when it is monitored that the engine water temperature is higher than a second preset value, turn off the water heating PTC, and heat the occupant compartment and the battery through engine hot water.

[0097] For other embodiments or specific implementation manners of the vehicle waste heat control device of the present application, reference may be made to the above method embodiments, which will not be elaborated here.

[0098] The present application provides a vehicle waste heat control device, and the vehicle waste heat control device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein, the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the vehicle waste heat control method in the first embodiment above.

[0099] Next, refer to Figure 6, which shows a schematic structural diagram of a vehicle waste heat control device suitable for implementing the embodiments of the present application. The vehicle waste heat control device in the embodiments of the present application may include, but is not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 6 The shown vehicle waste heat control device is merely an example and should not impose any limitation on the functions and usage scope of the embodiments of the present application.

[0100] As Figure 6 shown, the vehicle waste heat control device may include a processing device 1001 (such as a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to the program stored in the read-only memory 1002 or the program loaded from the storage device 1003 into the random access memory 1004. In the random access memory 1004, various programs and data required for the operation of the vehicle waste heat control device are also stored. The processing device 1001, the read-only memory 1002, and the random access memory 1004 are connected to each other through a bus 1005. The input / output interface 1006 is also connected to the bus. Generally, the following systems may be connected to the input / output interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the vehicle waste heat control device to communicate with other devices wirelessly or wireline to exchange data. Although the figure shows a vehicle waste heat control device with various systems, it should be understood that it is not required to implement or have all the shown systems. Instead, more or fewer systems may be implemented or had.

[0101] In particular, according to the embodiments disclosed in the present application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, the embodiments disclosed in the present application include a computer program product that includes a computer program carried on a computer-readable medium, and the computer program contains program codes for executing the methods shown in the flowcharts. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a read-only memory 1002. When the computer program is executed by a processing device 1001, the above-mentioned functions defined in the methods of the embodiments disclosed in the present application are executed.

[0102] The vehicle waste heat control device provided by the present application adopts the vehicle waste heat control method in the above embodiments, and can solve the technical problems of vehicle waste heat control. Compared with the prior art, the beneficial effects of the vehicle waste heat control device provided by the present application are the same as those of the vehicle waste heat control method provided by the above embodiments, and other technical features in the vehicle waste heat control device are the same as those disclosed in the method of the previous embodiment, and will not be elaborated here.

[0103] It should be understood that each part disclosed in the present application can be implemented by hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0104] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application, and all should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0105] The present application provides a computer-readable storage medium having computer-readable program instructions (i.e., computer programs) stored thereon, and the computer-readable program instructions are used to execute the vehicle waste heat control method in the above embodiments.

[0106] The computer-readable storage medium provided by the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM) or flash memory, optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system or device. The program code contained on the computer-readable storage medium can be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0107] The above computer-readable storage medium may be included in the vehicle waste heat control device; or it may exist independently without being assembled into the vehicle waste heat control device.

[0108] The above computer-readable storage medium carries one or more programs. When the above one or more programs are executed by the vehicle waste heat control device, the vehicle waste heat control device can write computer program code for performing the operations of the present application in one or more programming languages or combinations thereof. The above programming languages include object-oriented programming languages such as Java, Smalltalk, C++; and also include conventional procedural programming languages such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, executed as an independent software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, such as through a local area network (LAN) or a wide area network (WAN), or connected to an external computer (e.g., by connecting through the Internet using an Internet service provider).

[0109] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagram may represent a module, a segment of a program, or a part of code that contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than that marked in the accompanying drawings. For example, two consecutive blocks shown may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, as well as combinations of blocks in the block diagram and / or flowchart, may be implemented by a dedicated hardware-based system that performs the specified functions or operations, or may be implemented by a combination of dedicated hardware and computer instructions.

[0110] The modules described in the embodiments of the present application can be implemented in software or in hardware. In some cases, the name of the module does not constitute a limitation on the unit itself.

[0111] The readable storage medium provided by the present application is a computer-readable storage medium, and the computer-readable storage medium stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned vehicle waste heat control method, which can solve the technical problems of large energy consumption of traditional heat control methods for vehicles and low utilization rate of waste heat of the whole vehicle. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by the present application are the same as those of the vehicle waste heat control method provided by the above embodiments, and will not be elaborated here.

[0112] The present application also provides a computer program product, including a computer program, and when the computer program is executed by a processor, it implements the steps of the vehicle waste heat control method as described above.

[0113] The computer program product provided by the present application can solve the technical problems of vehicle waste heat control. Compared with the prior art, the beneficial effects of the computer program product provided by the present application are the same as those of the vehicle waste heat control method provided by the above embodiments, and will not be elaborated here.

[0114] The above are only some embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made under the technical concept of the present application by using the content of the specification and drawings of the present application, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A method for controlling the waste heat of a vehicle, characterized in that, The method includes the following steps: When the engine water temperature of the vehicle is higher than a first preset value, determine whether there is a heating demand in the passenger compartment or the battery of the vehicle; If there is a heating demand in the passenger compartment and there is no heating demand in the battery, perform waste heat control on the vehicle based on a first control logic, where the first control logic is used to determine the opening ratio of the three-way valve in the vehicle waste heat control system leading to the passenger compartment side; If there is a heating demand in the battery and there is no heating demand in the passenger compartment, perform waste heat control on the vehicle based on a second control logic, where the second control logic is used to determine the opening ratio of the three-way valve in the vehicle waste heat control system leading to the battery heat exchange side.

2. The vehicle waste heat control method according to claim 1, wherein The three-way valve includes a first three-way valve and a second three-way valve. The step of performing waste heat control on the vehicle based on the first control logic includes: Determine a first mapping value corresponding to the ambient temperature of the vehicle at the current moment based on the first control logic, and use the first mapping value as the first opening of the first three-way valve in the vehicle waste heat control system corresponding to the passenger compartment side of the vehicle; Determine a second mapping value corresponding to the engine water temperature based on the first control logic, and use the second mapping value as the second opening of the second three-way valve in the vehicle waste heat control system corresponding to the passenger compartment side of the vehicle; Perform waste heat control on the vehicle according to the first opening and the second opening.

3. The vehicle waste heat control method according to claim 2, wherein The step of performing waste heat control on the vehicle based on the second control logic includes: Determine a third mapping value corresponding to the engine water temperature based on the second control logic, and use the third mapping value as the third opening of the first three-way valve in the vehicle waste heat control system corresponding to the battery heat exchange side of the vehicle; Determine a fourth opening of the second three-way valve in the vehicle waste heat control system corresponding to the battery heat exchange side when the vehicle performs battery heating based on the second control logic; Perform waste heat control on the vehicle according to the third opening and the fourth opening.

4. The vehicle waste heat control method according to claim 1, characterized in that, After the step of when the engine water temperature of the vehicle is higher than the first preset value and determining whether there is a heating demand in the passenger compartment or the battery of the vehicle, it further includes: If there is a heating demand in both the passenger compartment and the battery, adjust the three-way valve in the vehicle waste heat control system to the fully open state, and heat the passenger compartment and the battery through a water-cooled PTC; When it is monitored that the engine water temperature is higher than a second preset value, turn off the water-cooled PTC, and heat the passenger compartment and the battery through the engine hot water.

5. The vehicle waste heat control method according to claim 1, wherein The step of determining whether there is a heating demand in the passenger compartment or the battery of the vehicle includes: If a heating instruction issued by the user is received or it is detected that the ambient temperature of the vehicle is lower than a third preset value, determine that there is a heating demand in the passenger compartment of the vehicle; If it is detected that the battery temperature of the vehicle is lower than a fourth preset value, determine that there is a heating demand in the battery of the vehicle.

6. A vehicle waste heat control system, characterized in that, The vehicle waste heat control system is applied to the steps of the vehicle waste heat control method as described in any one of claims 1 to 5.

7. A vehicle waste heat control device, characterized in that, The vehicle waste heat control device includes: A demand judgment module, configured to judge whether there is a heating demand for the occupant compartment or the battery of the vehicle when the engine water temperature of the vehicle is higher than a first preset value; A first control module, configured to, if there is a heating demand for the occupant compartment and there is no heating demand for the battery, perform waste heat control on the vehicle based on a first control logic, where the first control logic is used to determine the opening ratio of the three-way valve in the vehicle waste heat control system leading to the occupant compartment side; A second control module, configured to, if there is a heating demand for the battery and there is no heating demand for the occupant compartment, perform waste heat control on the vehicle based on a second control logic, where the second control logic is used to determine the opening ratio of the three-way valve in the vehicle waste heat control system leading to the battery heat exchange side.

8. A vehicle waste heat control device, characterized in that, The device includes: a memory, a processor, and a vehicle waste heat control program stored on the memory and executable on the processor, where the vehicle waste heat control program is configured to implement the steps of the vehicle waste heat control method according to any one of claims 1 to 5.

9. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, on which a vehicle waste heat control program is stored, and when the vehicle waste heat control program is executed by a processor, it implements the steps of the vehicle waste heat control method according to any one of claims 1 to 5.

10. A computer program product, characterized in that, The computer program product includes a vehicle waste heat control program, and when the vehicle waste heat control program is executed by a processor, it implements the steps of the vehicle waste heat control method according to any one of claims 1 to 5.

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