Control method and apparatus for heater water pump of hybrid vehicle, and device and storage medium

Abstract

A control method and apparatus for a heater water pump of a hybrid vehicle, and a device and a storage medium. The control method comprises: when an engine cooling request of a vehicle engine is detected, acquiring an engine operating state and first basic engine parameters of the vehicle engine, and on the basis of the engine operating state and the first basic engine parameters, determining a first duty cycle of a heater water pump (S110); when a gas cooling request of an exhaust gas recirculation system is detected, acquiring second basic engine parameters of the vehicle engine and gas parameters of an exhaust gas recirculation valve, and on the basis of the second basic engine parameters and the gas parameters of the exhaust gas recirculation valve, determining a second duty cycle of the heater water pump (S120); when a heating request instruction of a vehicle heating system is detected, determining a third duty cycle of the heater water pump on the basis of the heating request instruction (S130); and on the basis of the first duty cycle, the second duty cycle and the third duty cycle, determining a target duty cycle of the heater water pump (S140).

Description

Method, device, equipment and storage medium for controlling a heater water pump of a hybrid vehicle

[0001] The present application claims priority to the Chinese patent application No. 202410821099.5, filed on June 24, 2024, to the Chinese Patent Office, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of hybrid vehicle cooling technology, for example to a method, device, equipment and storage medium for controlling a heater water pump of a hybrid vehicle. BACKGROUND

[0003] In a hybrid vehicle, a heater water pump can generally exchange heat with heat generated by an engine or an electric motor, and can be used to bring the heat generated by the engine or the electric motor into the vehicle's heating system, to heat the vehicle interior through the heating system to meet the heating needs of the vehicle. However, in a hybrid vehicle, the vehicle engine and exhaust gas recirculation system are cooled during heat exchange with the heater water pump, but in the related art, the heater water pump generally only meets the heating needs of the heating system and does not respond to the cooling needs of the vehicle engine and exhaust gas recirculation system. The control method of the heater water pump lacks support for the cooling needs of the vehicle engine and exhaust gas recirculation system. SUMMARY

[0004] The present application provides a method, device, equipment and storage medium for controlling a heater water pump of a hybrid vehicle to solve the technical problem that the heater water pump cannot respond to the cooling needs of the vehicle engine and exhaust gas recirculation system.

[0005] The present application provides a method for controlling a heater water pump of a hybrid vehicle, comprising: in the case of detecting an engine cooling request of a vehicle engine, obtaining an engine operating state and a first engine basic parameter of the vehicle engine, and determining a first duty cycle of a heater water pump according to the engine operating state and the first engine basic parameter; in the case of detecting a gas cooling request of an exhaust gas recirculation system, obtaining a second engine basic parameter of the vehicle engine and a gas parameter of an exhaust gas recirculation valve, and determining a second duty cycle of the heater water pump according to the second engine basic parameter and the gas parameter of the exhaust gas recirculation valve; in the case of detecting a heating request instruction of a vehicle heating system, determining a third duty cycle of the heater water pump according to the heating request instruction; and determining a target duty cycle of the heater water pump according to the first duty cycle, the second duty cycle and the third duty cycle.

[0006] The embodiment of the present application provides a control device of a heating water pump of a hybrid vehicle, comprising: an engine cooling demand module, which is configured to acquire an engine operating state and a first engine basic parameter of a vehicle engine when detecting an engine cooling request of the vehicle engine, and determine a first duty cycle of a heating water pump according to the engine operating state and the first engine basic parameter; a waste gas recirculation system demand module, which is configured to acquire a second engine basic parameter of the vehicle engine and a gas parameter of a waste gas recirculation valve when detecting a gas cooling request of a waste gas recirculation system, and determine a second duty cycle of the heating water pump according to the second engine basic parameter and the gas parameter of the waste gas recirculation valve; a heating demand module, which is configured to determine a third duty cycle of the heating water pump according to a heating request instruction of a vehicle heating system when detecting the heating request instruction; and a heating water pump control module, which is configured to determine a target duty cycle of the heating water pump according to the first duty cycle, the second duty cycle and the third duty cycle.

[0007] The embodiment of the present application provides an electronic device, comprising: at least one processor; and a memory connected with the at least one processor in communication; wherein the memory stores a computer program which can be executed by the at least one processor, and the computer program is executed by the at least one processor, so that the at least one processor can execute the control method of the heating water pump of the hybrid vehicle according to any embodiment of the present application.

[0008] The embodiment of the present application provides a computer readable storage medium, which stores computer instructions, and the computer instructions are used to make the processor execute the control method of the heating water pump of the hybrid vehicle according to any embodiment of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 is a flow chart of the control method of the heating water pump of the hybrid vehicle according to the embodiment of the present application;

[0010] Fig. 2 is a flow chart of another control method of the heating water pump of the hybrid vehicle according to the embodiment of the present application;

[0011] Fig. 3 is a flow chart of another control method of the heating water pump of the hybrid vehicle according to the embodiment of the present application;

[0012] Fig. 4 is a structural schematic diagram of the control device of the heating water pump of the hybrid vehicle according to the embodiment of the present application;

[0013] Fig. 5 shows a structural schematic diagram of an electronic device 10 which can be used to implement the embodiment of the present application. DETAILED DESCRIPTION

[0014] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of the present application.

[0015] The terms "first", "second", and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products, or devices. Embodiments

[0016] FIG. 1 is a flowchart of a control method of a heating water pump of a hybrid vehicle according to an embodiment of the present application. The embodiment can be applied to a case where a vehicle engine and an exhaust gas recirculation system of a hybrid vehicle need to be cooled. The method can be executed by a heating water pump control device of the hybrid vehicle. The heating water pump control device can be implemented in the form of hardware and / or software, and can be configured in an electronic device. As shown in FIG. 1, the method includes the following steps.

[0017] In S110, when an engine cooling request of a vehicle engine is detected, an engine operating state and first engine basic parameters of the vehicle engine are obtained, and a first duty cycle of a heating water pump is determined according to the engine operating state and the first engine basic parameters.

[0018] The engine cooling demand can be a demand for cooling an engine supercharger sent by the engine.

[0019] The engine operating state can be an operating condition of the vehicle engine. The engine operating state includes engine operation and engine stop. The engine operation can be that the vehicle engine is running and doing work. The engine stop can be that the vehicle engine stops running.

[0020] The first engine basic parameters can include water temperature and exhaust temperature when the engine is running, water temperature when the engine is stopped, exhaust temperature at the time of stop, volute temperature when the engine is stopped, and engine ambient temperature.

[0021] The first duty cycle can be a duty cycle of the heater water pump to meet a cooling demand of a supercharger of the vehicle engine.

[0022] When the supercharger of the vehicle engine needs to be cooled, an engine cooling request of the vehicle engine is generated, and when the engine cooling request of the vehicle engine is detected, an engine operating state and a first engine basic parameter of the vehicle engine are acquired, and then a first duty cycle of the heater water pump to cool the supercharger of the vehicle engine is determined according to the engine operating state and the first engine basic parameter.

[0023] S120, when the gas cooling request of the exhaust gas recirculation system is detected, the second engine basic parameter of the vehicle engine and the gas parameter of the exhaust gas recirculation valve are acquired, and the second duty cycle of the heater water pump is determined according to the second engine basic parameter and the gas parameter of the exhaust gas recirculation valve.

[0024] The gas cooling request can be a request information for cooling gas in the exhaust gas recirculation system; the exhaust gas recirculation system can be an emission control device of the vehicle, and the exhaust gas recirculation system is usually integrated as an independent subsystem in the engine. The exhaust gas recirculation system includes an exhaust gas recirculation valve, which is a component of the exhaust gas recirculation system, can control and adjust the amount of exhaust gas drawn from the engine exhaust manifold, and can send the exhaust gas back to the intake manifold and participate in the combustion process again.

[0025] The second engine basic parameter can include engine speed, engine load, engine ambient temperature and engine intake temperature.

[0026] The gas parameter of the exhaust gas recirculation valve can include the exhaust gas mass flow at the exhaust gas recirculation valve and the system gas temperature of the exhaust gas recirculation valve.

[0027] Optionally, after the exhaust gas recirculation system is activated, the exhaust gas mass flow at the exhaust gas recirculation valve is detected to determine whether the exhaust gas mass flow at the exhaust gas recirculation valve is greater than a preset cooling threshold value, if the exhaust gas mass flow at the exhaust gas recirculation valve is greater than the preset cooling mass flow, the system gas temperature at the exhaust gas recirculation valve is detected to determine whether the system gas temperature at the exhaust gas recirculation valve is greater than a preset cooling temperature, and if the system gas temperature at the exhaust gas recirculation valve is greater than the preset cooling temperature, it is indicated that the exhaust gas recirculation system needs to be cooled by the heater water pump, and then the gas cooling request of the exhaust gas recirculation system is generated.

[0028] The second duty cycle can be a duty cycle of the heater water pump to meet a cooling demand of a supercharger of the vehicle engine.

[0029] When a gas cooling request of the exhaust gas recirculation system is detected, a second engine basic parameter of a vehicle engine and a gas parameter of an exhaust gas recirculation valve are acquired, a demand of gas cooling of the exhaust gas recirculation system is determined according to the second engine basic parameter and the gas parameter of the exhaust gas recirculation valve, and then a second duty cycle of the heater water pump is determined.

[0030] S130, in the case that a heating request instruction of a vehicle heating system is detected, a third duty cycle of the heater water pump is determined according to the heating request instruction.

[0031] The heating request instruction can be an instruction generated by the vehicle heating system according to a heating demand. The heating demand of the vehicle is a heating demand determined by the vehicle telematics system according to the heating instruction after a heating command is input by the driver of the vehicle through the vehicle telematics system, and the heating demand is sent to the vehicle heating system. The heating demand can be transmitted through the controller area network (CAN) bus of the vehicle.

[0032] The third duty cycle can be a duty cycle of the heater water pump meeting the demand of the vehicle heating system.

[0033] The vehicle heating system determines the heating request instruction according to the heating demand of the driver of the vehicle, and determines the third duty cycle of the heater water pump according to the heating request instruction.

[0034] S140, a target duty cycle of the heater water pump is determined according to the first duty cycle, the second duty cycle and the third duty cycle.

[0035] The target duty cycle can be a final duty cycle of the heater water pump meeting the demand.

[0036] After the first duty cycle, the second duty cycle and the third duty cycle are acquired, the maximum value among the first duty cycle, the second duty cycle and the third duty cycle is selected as the target duty cycle of the heater water pump.

[0037] The technical scheme of the embodiment of the application comprises the following steps.

[0038] Figure 2 is a flow chart of another control method of a warm air water pump of a hybrid vehicle provided by the embodiment of the application. The relationship between the embodiment and the above-mentioned embodiment is that the method of determining the demand of the vehicle engine for the warm air water pump according to the engine operating state and the first engine basic parameter of the vehicle engine is illustrated. As shown in Figure 2, the method comprises the following steps.

[0039] S210, in the case of detecting an engine cooling request of a vehicle engine, acquiring an engine operating state and a first engine basic parameter of the vehicle engine.

[0040] S220, in the case of the engine operating state being engine operation, then inquiring according to the first engine basic parameter in a preset first cooling chart to determine the first duty cycle.

[0041] The preset first cooling map can be a two-dimensional map preset for judging the demand duty ratio of the cooling demand to the heater water pump during engine operation. The first cooling map can be a two-dimensional map composed of the water temperature during engine operation and the exhaust temperature of the engine during engine operation as variables, and the intersection of the two variables as the demand duty ratio of the heater water pump.

[0042] In the case where the engine operating state is engine operation, the water temperature during engine operation and the exhaust temperature of the engine are queried in the preset first cooling map, and the demand duty ratio obtained by the query is determined as the first duty ratio.

[0043] Optionally, in another optional embodiment of the present application, the first duty ratio of the heater water pump is determined according to the engine operating state and the first engine basic parameter, which comprises:

[0044] In the case where the engine operating state is engine stop, the first engine basic parameter is queried in the preset second cooling map to determine the first duty ratio.

[0045] The preset second cooling map can be a two-dimensional map preset for judging the demand duty ratio of the cooling demand to the heater water pump during engine stop. The second cooling map can be a two-dimensional map composed of the water temperature during engine stop and the exhaust temperature at the engine stop moment as variables, and the intersection of the two variables as the demand duty ratio of the heater water pump.

[0046] In the case where the engine operating state is engine stop, the water temperature during engine operation and the exhaust temperature at the engine stop moment are queried in the preset second cooling map, and the demand duty ratio obtained by the query is determined as the first duty ratio.

[0047] Optionally, in another optional embodiment of the present application, in the case where the engine operating state is engine stop, the first engine basic parameter is queried in the preset second cooling map to determine the first duty ratio, and the method further comprises:

[0048] Obtaining the engine ambient temperature and the volute temperature of the vehicle engine;

[0049] Determining the running time of the heater water pump according to the engine ambient temperature and the volute temperature of the vehicle engine;

[0050] Determining the corresponding stop running instruction of the heater water pump according to the first duty ratio and the running time of the heater water pump.

[0051] The engine ambient temperature can be the ambient temperature of the vehicle engine; and the volute temperature of the vehicle engine can be the temperature of the housing of the vehicle engine.

[0052] The running time can be the time during which the heater water pump operates according to the first duty ratio. Alternatively, when the engine is stopped, the first duty ratio is obtained, and since the cooling demand of the engine has a certain time limit during the engine stopping process, the running time of the heater water pump can be calculated by the volute temperature and the ambient temperature of the environment in which the engine is located, to determine the running time during which the heater water pump needs to operate. After the heater water pump operates for the corresponding running time, the heater water pump can stop operating.

[0053] The stopping operation instruction can be an instruction for controlling the heater water pump to stop operating.

[0054] When the engine is stopped, after determining the first duty ratio of the heater water pump during the process of cooling the engine supercharger by the heater water pump, the ambient temperature of the engine and the volute temperature of the vehicle engine are obtained, and the running time of the heater water pump is determined according to the ambient temperature of the engine and the volute temperature of the vehicle engine. After the actual running time of the heater water pump meets the running time, the corresponding stopping operation instruction of the heater water pump is determined according to the first duty ratio and the running time of the heater water pump, and the heater water pump is controlled to stop operating by the stopping operation instruction.

[0055] Alternatively, when the engine is stopped, during the process of cooling the engine supercharger by the heater water pump, if the engine is started again, the cooling demand of the engine is determined according to the engine operating state, i.e., the engine operating condition, by querying the water temperature and the exhaust temperature of the engine in a preset first cooling map, and the demand duty ratio obtained by the query is determined as the first duty ratio.

[0056] S230, in the case of detecting a gas cooling request of the exhaust gas recirculation system, obtaining a second engine basic parameter of the vehicle engine and a gas parameter of the exhaust gas recirculation valve, and determining a second duty ratio of the heater water pump according to the second engine basic parameter and the gas parameter of the exhaust gas recirculation valve.

[0057] S240, in the case of detecting a heating request instruction of the vehicle heating system, determining a third duty ratio of the heater water pump according to the heating request instruction.

[0058] The technical scheme of the embodiment of the application comprises the following steps.

[0059] FIG. 3 is a flow chart of another control method of a warm air water pump of a hybrid vehicle provided by the embodiment of the application, and the relationship between the embodiment and the above-mentioned embodiment is to illustrate how to determine the cooling demand of the exhaust gas recirculation system on the warm air water pump. As shown in FIG. 3, the method comprises the following steps.

[0060] S310, in the case of detecting an engine cooling request of a vehicle engine, obtaining an engine operating state and a first engine basic parameter of the vehicle engine, and determining a first duty cycle of a warm air water pump according to the engine operating state and the first engine basic parameter.

[0061] S320, querying in a preset third cooling map according to the exhaust gas mass flow and the system gas temperature to determine a demand duty cycle of the warm air water pump.

[0062] The third cooling map can be a two-dimensional map preset for judging the demand duty cycle of the warm air water pump by the cooling demand of the exhaust gas recirculation system. The third cooling map can be a two-dimensional map constituted by the exhaust gas mass flow and the system gas temperature, the exhaust gas mass flow and the system gas temperature being variables of the two-dimensional map, and the intersection of the two variables being the demand duty cycle of the warm air water pump.

[0063] The demand duty cycle can be a duty cycle of the operation of the demand warm air water pump.

[0064] The intersection of the exhaust gas mass flow and the system gas temperature in the third cooling map preset is queried based on the exhaust gas mass flow and the system gas temperature, and the intersection of the exhaust gas mass flow and the system gas temperature in the third cooling map is taken as the demand duty cycle of the warm air water pump.

[0065] S330, correcting the demand duty cycle according to the second engine basic parameter to determine the second duty cycle.

[0066] Since the cooling of the exhaust gas recirculation system is affected by the vehicle engine, after the demand duty cycle of the warm air water pump by the exhaust gas recirculation system is obtained, the demand duty cycle is corrected by the second engine basic parameter of the vehicle engine to determine the second duty cycle.

[0067] Optionally, in another optional embodiment of the present application, the second duty cycle is determined by correcting the demand duty cycle according to the second engine basic parameter, comprising:

[0068] determining a first correction factor according to the engine speed and the engine load;

[0069] determining a second correction factor according to the engine ambient temperature and the engine intake temperature;

[0070] correcting the demand duty cycle according to the first correction factor and the second correction factor to determine the second duty cycle.

[0071] The first correction factor and the second correction factor can be coefficients for correcting the demand duty cycle of the warm air water pump by the exhaust gas recirculation system; the first correction factor is determined by the engine speed and the engine load, and is obtained by querying the engine speed and the engine load in a preset first correction factor two-dimensional map; the second correction factor is determined by the engine ambient temperature and the engine intake temperature, and is obtained by querying the engine ambient temperature and the engine intake temperature in a preset second correction factor two-dimensional map.

[0072] The first correction factor is determined by the engine speed and the engine load in the second engine basic parameter, the second correction factor is determined by the engine ambient temperature and the engine intake temperature in the second engine basic parameter, the first correction factor, the second correction factor and the demand duty ratio are multiplied to obtain the second duty ratio.

[0073] In S340, when the heating request instruction of the vehicle heating system is detected, a third duty ratio of the heater water pump is determined according to the heating request instruction.

[0074] In S350, a target duty ratio of the heater water pump is determined according to the first duty ratio, the second duty ratio and the third duty ratio.

[0075] Optionally, in another optional embodiment of the present application, when the heater water pump is in a fault state, an engine torque limiting value is determined according to a preset engine torque limiting data table and the gas parameter of the exhaust gas recirculation valve.

[0076] The fault state can be that the control of the heater water pump cannot be realized. For example, when the vehicle controls the heater water pump through the CAN bus, the feedback signal of the heater water pump cannot be received or the feedback signal of the heater water pump is lost.

[0077] The engine torque limiting value can be a value for limiting the engine torque, and the engine torque limiting value can effectively protect the engine of the vehicle.

[0078] The engine torque limiting data table can be a two-dimensional graph preset for judging the engine torque limiting value of the vehicle. The engine torque limiting data table can be a two-dimensional graph constructed according to the exhaust gas mass flow and the system gas temperature, and the intersection point of the two variables is taken as the engine torque limiting value of the heater water pump.

[0079] When the heater water pump is in a fault state, the engine torque limiting value of the engine is determined by querying the engine torque limiting data table through the exhaust gas mass flow and the system gas temperature, and the engine torque of the vehicle is limited according to the engine torque limiting value.

[0080] Optionally, after the engine torque of the vehicle is limited by the engine torque limiting value, the current torque limiting state of the engine of the vehicle is reported to the vehicle control unit (VCU), and the VCU determines the required torque value of the engine according to the reported torque capacity.

[0081] The technical scheme of the embodiment of the application comprises the following steps: when an engine cooling request of a vehicle engine is detected, an engine running state and a first engine basic parameter of the vehicle engine are acquired, and a first duty cycle of a heater water pump is determined according to the engine running state and the first engine basic parameter. The heater water pump can respond to the cooling demand of the vehicle engine, and the heater water pump is controlled according to the engine running state and the first engine basic parameter, so that the support for the cooling of the vehicle engine is realized, the control precision of the heater water pump is improved, and the safety and reliability of the engine of the hybrid vehicle are improved. When a gas cooling request of an exhaust gas recirculation system is detected, a second engine basic parameter of the vehicle engine and a gas parameter of an exhaust gas recirculation valve are acquired, and a second duty cycle of the heater water pump is determined according to the second engine basic parameter and the gas parameter of the exhaust gas recirculation valve. The heater water pump can respond to the cooling demand of the exhaust gas recirculation system, and the heater water pump is controlled according to the gas parameter of the exhaust gas recirculation valve and the second engine basic parameter, so that the support for the cooling of the exhaust gas recirculation system is realized, the control precision of the heater water pump is further improved, and the safety and reliability of the hybrid vehicle are improved. When a heating request instruction of a vehicle heating system is detected, a third duty cycle of the heater water pump is determined according to the heating request instruction, a target duty cycle of the heater water pump is determined according to the first duty cycle, the second duty cycle and the third duty cycle, the target duty cycle of the heater water pump is determined according to the demand of the vehicle for the heater water pump, the demand of the vehicle is effectively met, the utilization rate of the heater water pump of the vehicle is improved, the control precision of the hybrid vehicle system is further improved, the technical problem that the heater water pump cannot respond to the cooling demand of the vehicle engine and the exhaust gas recirculation system in the related art is solved, the heater water pump participates in the cooling of the vehicle engine and the exhaust gas recirculation system, the utilization rate of the heater water pump is improved, the cooling efficiency of the vehicle engine and the exhaust gas recirculation system is improved, and the safety and reliability of the hybrid vehicle are improved.

[0082] Fig. 4 is a structural schematic diagram of a control device of a heating water pump of a hybrid vehicle according to an embodiment of the present application. As shown in Fig. 4, the device comprises an engine cooling demand module 410, an exhaust gas recirculation system demand module 420, a heating demand module 430 and a heating water pump control module 440. The engine cooling demand module 410 is configured to, when an engine cooling request of a vehicle engine is detected, acquire an engine operating state and a first engine basic parameter of the vehicle engine, and determine a first duty cycle of a heating water pump according to the engine operating state and the first engine basic parameter. The exhaust gas recirculation system demand module 420 is configured to, when a gas cooling request of an exhaust gas recirculation system is detected, acquire a second engine basic parameter of the vehicle engine and a gas parameter of an exhaust gas recirculation valve, and determine a second duty cycle of the heating water pump according to the second engine basic parameter and the gas parameter of the exhaust gas recirculation valve. The heating demand module 430 is configured to, when a heating request instruction of a vehicle heating system is detected, determine a third duty cycle of the heating water pump according to the heating request instruction. The heating water pump control module 440 is configured to determine a target duty cycle of the heating water pump according to the first duty cycle, the second duty cycle and the third duty cycle.

[0083] The technical scheme of the embodiment of the application comprises the following steps: when an engine cooling request of a vehicle engine is detected, an engine running state and a first engine basic parameter of the vehicle engine are acquired, and a first duty cycle of a heater water pump is determined according to the engine running state and the first engine basic parameter. The heater water pump can respond to the cooling demand of the vehicle engine, and the heater water pump is controlled according to the engine running state and the first engine basic parameter, so that the support for the cooling of the vehicle engine is realized, the control precision of the heater water pump is improved, and the safety and reliability of the engine of the hybrid vehicle are improved. When a gas cooling request of an exhaust gas recirculation system is detected, a second engine basic parameter of the vehicle engine and a gas parameter of an exhaust gas recirculation valve are acquired, and a second duty cycle of the heater water pump is determined according to the second engine basic parameter and the gas parameter of the exhaust gas recirculation valve. The heater water pump can respond to the cooling demand of the exhaust gas recirculation system, and the heater water pump is controlled according to the gas parameter of the exhaust gas recirculation valve and the second engine basic parameter, so that the support for the cooling of the exhaust gas recirculation system is realized, the control precision of the heater water pump is further improved, and the safety and reliability of the hybrid vehicle are improved. When a heating request instruction of a vehicle heating system is detected, a third duty cycle of the heater water pump is determined according to the heating request instruction, a target duty cycle of the heater water pump is determined according to the first duty cycle, the second duty cycle and the third duty cycle, the target duty cycle of the heater water pump is determined according to the demand of the vehicle for the heater water pump, the demand of the vehicle is effectively met, the utilization rate of the heater water pump of the vehicle is improved, the control precision of the hybrid vehicle system is further improved, the technical problem that the heater water pump cannot respond to the cooling demand of the vehicle engine and the exhaust gas recirculation system in the related art is solved, the heater water pump participates in the cooling of the vehicle engine and the exhaust gas recirculation system, the utilization rate of the heater water pump is improved, the cooling efficiency of the vehicle engine and the exhaust gas recirculation system is improved, and the safety and reliability of the hybrid vehicle are improved.

[0084] Optionally, the engine cooling demand module 410 is configured to: when the engine running state is that the engine is running, the first duty cycle is determined by querying the first cooling map according to the first engine basic parameter.

[0085] Optionally, the engine cooling demand module 410 is configured to: when the engine running state is that the engine is stopped, the first duty cycle is determined by querying the second cooling map according to the first engine basic parameter.

[0086] Optionally, the engine cooling demand module 410 is further configured to: acquire an ambient temperature and a volute temperature of the vehicle engine; determine a running time of the heater water pump according to the ambient temperature and the volute temperature of the vehicle engine; and determine the corresponding stop running instruction of the heater water pump according to the first duty ratio and the running time of the heater water pump.

[0087] Optionally, the exhaust gas recirculation system demand module 420 is configured to: query in a preset third cooling map according to the exhaust gas mass flow and the system gas temperature, to determine a demand duty ratio of the heater water pump; and correct the demand duty ratio according to the second engine basic parameter, to determine the second duty ratio.

[0088] Optionally, the exhaust gas recirculation system demand module 420 is configured to: determine a first correction factor according to the engine speed and the engine load; determine a second correction factor according to the engine ambient temperature and the engine intake temperature; and correct the demand duty ratio according to the first correction factor and the second correction factor, to determine the second duty ratio.

[0089] Optionally, the device further comprises a fault detection module and a torque limiting module, wherein the fault detection module is configured to, in a case where it is detected that the heater water pump is in a fault state, determine an engine torque limiting value according to a preset engine torque limiting data table and a gas parameter of the exhaust gas recirculation valve; and the torque limiting module is configured to limit the torque of the vehicle engine according to the engine torque limiting value.

[0090] The control device of the heater water pump of the hybrid vehicle provided in the embodiments of the present application can execute the control method of the heater water pump of the hybrid vehicle provided in any of the embodiments of the present application, and has the function modules corresponding to the execution method.

[0091] FIG. 5 shows a structural schematic diagram of an electronic device 10 that can be used to implement embodiments of the present application. The electronic device is intended to represent a variety of forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device can also represent a variety of forms of mobile devices, such as personal digital assistants, cellular telephones, smart phones, wearable devices (e.g., headsets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their modes of operation, are meant to be examples only, and are not intended to limit the implementations of the present application described and / or claimed in this document.

[0092] As shown in FIG. 5, the electronic device 10 includes at least one processor 11, and a memory, such as a Read-Only Memory (ROM) 12, a Random Access Memory (RAM) 13, etc., which is communicatively connected to the at least one processor 11, wherein the memory stores a computer program that can be executed by the at least one processor. The processor 11 can perform various appropriate actions and processes according to the computer program stored in the Read-Only Memory (ROM) 12 or loaded from the storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An Input / Output (I / O) interface 15 is also connected to the bus 14.

[0093] Various components in the electronic device 10 are connected to the I / O interface 15, including an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, a loudspeaker, etc.; a storage unit 18, such as a magnetic disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer grid, such as the Internet, and / or various telecommunication grids.

[0094] The processor 11 can be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various special-purpose Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, a Digital Signal Processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 performs various methods and processes described above, such as the control method of the heating water pump of the hybrid vehicle.

[0095] In some embodiments, the control method of the heater core water pump of the hybrid vehicle can be implemented as a computer program tangibly embodied in a computer readable storage medium, e.g., the storage unit 18. In some embodiments, part or all of the computer program can be loaded onto and / or installed into the electronic device 10 via the ROM 12 and / or the communication unit 19. One or more steps of the control method of the heater core water pump of the hybrid vehicle described above can be performed when the computer program is loaded onto the RAM 13 and executed by the processor 11. Alternatively, in other embodiments, the processor 11 can be configured to perform the control method of the heater core water pump of the hybrid vehicle by any other appropriate means, e.g., by means of firmware.

[0096] Various implementations of the systems and techniques described above can be realized in digital electronic circuitry, integrated circuitry, a Field Programmable Gate Array (FPGA), an Application-Specific Integrated Circuit (ASIC), a System on Chip (SOC), a Complex Programmable Logic Device (CPLD), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.

[0097] Computer programs used to implement the methods of the present application can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the computer program, when executed, implements the methods / operations specified in the flow charts and / or block diagrams. The computer program can be executed entirely on a machine, partially on a machine and partially on a remote machine or entirely on a remote machine or server.

[0098] In the context of this application, a computer readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer readable storage medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, a computer readable storage medium can be a machine readable signal medium. More specific examples of a machine readable storage medium will include one or more lines of a program of instructions in a transitory signal form, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM) or flash memory card, an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0099] To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having a display device (e.g., a Cathode Ray Tube (CRT) or a Liquid Crystal Display (LCD) monitor) for displaying information to the user and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.

[0100] The systems and techniques described herein can be implemented in a computing system that includes a back end component, e.g., as a data server, or that includes a middleware component, e.g., an application server, or that includes a front end component, e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described herein, or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication, e.g., a communication network. Examples of communication networks include a local area network (LAN), a wide area network (WAN), the Internet, and a blockchain network.

[0101] The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. A server can be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system, and solves the defects of large management difficulty and weak business scalability in traditional physical host and virtual private server (VPS) services.

[0102] The embodiment provides a computer readable storage medium, which stores a computer program. The program is executed by a processor to implement the steps of the control method of the heating water pump of the hybrid vehicle provided by any embodiment of the application. The method comprises the following steps: when an engine cooling request of a vehicle engine is detected, an engine operating state and a first engine basic parameter of the vehicle engine are acquired, and a first duty cycle of a heating water pump is determined according to the engine operating state and the first engine basic parameter; when a gas cooling request of an exhaust gas recirculation system is detected, a second engine basic parameter of the vehicle engine and a gas parameter of an exhaust gas recirculation valve are acquired, and a second duty cycle of the heating water pump is determined according to the second engine basic parameter and the gas parameter of the exhaust gas recirculation valve; when a heating request instruction of a vehicle heating system is detected, a third duty cycle of the heating water pump is determined according to the heating request instruction; and the target duty cycle of the heating water pump is determined according to the first duty cycle, the second duty cycle and the third duty cycle.

[0103] The computer storage medium of the embodiments of the present application can adopt any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium may, for example, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or apparatus, or any combination thereof. Examples (non-exhaustive list) of the computer-readable storage medium include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM) or flash memory, an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, the computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in connection with an instruction execution system, apparatus or device.

[0104] The computer-readable signal medium can include a data signal propagated in baseband or propagated as a carrier wave in a propagated data signal, in which the computer-readable program code is contained. Such propagated data signal can take a variety of forms, including but not limited to electro-magnetic, optical or any suitable combination thereof. The computer-readable signal medium can also be any computer-readable medium that is not a storage medium and that can be used to carry or propagate program code for use by or in connection with an instruction execution system, apparatus or device.

[0105] The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wire line, optical fiber cable, Radio Frequency (RF), and the like, or any suitable combination thereof.

[0106] The computer program code for carrying out operations of the present application can be written in one or more programming languages or combinations of languages including object oriented programming languages, such as Java, Smalltalk, C++, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code can execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer, or entirely on the remote computer or server. In the latter scenario, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computer (for example, through the Internet using an Internet Service Provider).

[0107] Those skilled in the art should understand that the modules or steps of the present application described above can be implemented by using general computing devices, which can be centralized on a single computing device or distributed on a grid composed of multiple computing devices, and optionally, they can be implemented by using computer device executable program codes, so that they can be stored in storage devices and executed by computing devices, or they can be respectively manufactured into individual integrated circuit modules, or multiple modules or steps among them can be manufactured into a single integrated circuit module to implement. Thus, the present application is not limited to any specific combination of hardware and software.

[0108] It should be understood that the above-mentioned various forms of flow can be used to reorder, add or delete steps. For example, the steps described in the present application can be executed in parallel or sequentially or in different order, as long as the desired results of the technical solutions of the present application can be achieved, which is not limited herein.

Claims

1. A control method of a heating water pump of a hybrid vehicle, comprising: obtaining an engine operating state and a first engine basic parameter of a vehicle engine when an engine cooling request of the vehicle engine is detected, and determining a first duty cycle of a heating water pump according to the engine operating state and the first engine basic parameter; obtaining a second engine basic parameter of the vehicle engine and a gas parameter of an exhaust gas recirculation valve when a gas cooling request of an exhaust gas recirculation system is detected, and determining a second duty cycle of the heating water pump according to the second engine basic parameter and the gas parameter of the exhaust gas recirculation valve; determining a third duty cycle of the heating water pump according to a heating request instruction of a vehicle heating system when the heating request instruction is detected; determining a target duty cycle of the heating water pump according to the first duty cycle, the second duty cycle and the third duty cycle.

2. The method of claim 1, wherein, The determining of the first duty cycle of the heating water pump according to the engine operating state and the first engine basic parameter comprises: when the engine operating state is engine operation, the first duty cycle is determined by querying a preset first cooling map according to the first engine basic parameter.

3. The method of claim 1, wherein, The determining of the first duty cycle of the heating water pump according to the engine operating state and the first engine basic parameter comprises: when the engine operating state is engine stop, the first duty cycle is determined by querying a preset second cooling map according to the first engine basic parameter.

4. The method of claim 3, wherein, After the determining of the first duty cycle of the heating water pump according to the engine operating state and the first engine basic parameter, the method further comprises: obtaining an ambient temperature and a volute temperature of the vehicle engine; determining a running time of the heating water pump according to the ambient temperature and the volute temperature of the vehicle engine; determining a stop running instruction corresponding to the heating water pump according to the first duty cycle and the running time of the heating water pump.

5. The method of claim 2, wherein, The gas parameter of the exhaust gas recirculation valve comprises an exhaust gas mass flow and a system gas temperature; the obtaining of the second engine basic parameter of the vehicle engine and the gas parameter of the exhaust gas recirculation valve when the gas cooling request of the exhaust gas recirculation system is detected, and the determining of the second duty cycle of the heating water pump according to the second engine basic parameter and the gas parameter of the exhaust gas recirculation valve comprises: querying a preset third cooling map according to the exhaust gas mass flow and the system gas temperature to determine a required duty cycle of the heating water pump; correcting the required duty cycle according to the second engine basic parameter to determine the second duty cycle. The second engine basic parameter comprises an engine speed, an engine load, an engine ambient temperature and an engine intake temperature; the correcting of the required duty cycle according to the second engine basic parameter to determine the second duty cycle comprises:

6. The method of claim 5, wherein, determining a first correction factor according to the engine speed and the engine load; ​ determining a second correction factor according to the engine ambient temperature and the engine intake temperature; correcting the demand duty cycle according to the first correction factor and the second correction factor to determine the second duty cycle.

7. The method of claim 1, further comprising: in a case where it is detected that the heater water pump is in a failure state, determining an engine torque limiting value according to a preset engine torque limiting data table and a gas parameter of the exhaust gas recirculation valve; limiting the torque of the vehicle engine according to the engine torque limiting value.

8. A control device of a heater water pump of a hybrid vehicle, comprising: an engine cooling demand module configured to, in a case where an engine cooling request of a vehicle engine is detected, acquire an engine operating state of the vehicle engine and a first engine basic parameter, and determine a first duty cycle of a heater water pump according to the engine operating state and the first engine basic parameter; an exhaust gas recirculation system demand module configured to, in a case where a gas cooling request of an exhaust gas recirculation system is detected, acquire a second engine basic parameter of the vehicle engine and a gas parameter of an exhaust gas recirculation valve, and determine a second duty cycle of the heater water pump according to the second engine basic parameter and the gas parameter of the exhaust gas recirculation valve; a heating demand module configured to, in a case where a heating request instruction of a vehicle heating system is detected, determine a third duty cycle of the heater water pump according to the heating request instruction; a heater water pump control module configured to determine a target duty cycle of the heater water pump according to the first duty cycle, the second duty cycle, and the third duty cycle.

9. An electronic device, comprising: at least one processor; and a memory connected to the at least one processor in communication; wherein the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to execute the control method of the heater water pump of the hybrid vehicle according to any one of claims 1-7.

10. A computer readable storage medium storing computer instructions for causing a processor to execute the control method of the heater water pump of the hybrid vehicle according to any one of claims 1-7 when executed by the processor.

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