Vehicle, control method thereof, controller, storage medium, and program product
By preheating the engine with heating devices in new energy vehicles, avoiding fuel injection and concentration operations during cold start, exhaust emissions and economic problems in the prior art are solved, and more efficient engine start-up and operation are achieved.
Patent Information
- Application Number
- CN202411676292.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-02-07
AI Technical Summary
Existing engines need to be injected and concentrated before reaching the preset temperature, resulting in poor exhaust emissions of cars and reduced economics of the whole vehicle.
By utilizing existing heating devices in the vehicle, the engine water temperature is raised to a suitable temperature, and the fuel injection and concentration operation during cold start is avoided. The method includes starting the heating device and communicating the vehicle circulating water path with the engine when the engine temperature is lower than a preset temperature to heat the engine.
The emissions and fuel economy problems caused by fuel injection and enrichment are reduced, the overall performance of the vehicle is improved, and the original structure will not be greatly modified, reducing the cost expenditure of the vehicle.
Smart Images
Figure CN119389211A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of new energy vehicles, and in particular to a vehicle and a control method, a controller, a storage medium and a program product thereof. Background Art
[0002] Among new energy vehicles, hybrid vehicles and extended-range electric vehicles convert chemical energy into electrical energy through engines to prevent the vehicle from running out of power due to insufficient battery power. Specifically, when the battery power is sufficient, the vehicle is driven by the electric motor; when the battery power is insufficient, the engine starts and generates electricity to charge the battery before the vehicle is driven by the electric motor.
[0003] Existing engines usually start the engine to charge the battery when the preset temperature is reached or above. If the preset temperature is not reached, the fuel injection is required to ensure that there is enough fuel and air mixed for ignition when the engine is started. However, the fuel injection enrichment process will result in poor vehicle exhaust emissions and reduce the economy of the entire vehicle. Summary of the invention
[0004] The embodiments of the present application provide a vehicle and its control method, controller, storage medium and program product to solve the problem that the existing engine usually starts the engine to charge the battery when the preset temperature is reached or above. If the preset temperature is not reached, the fuel injection enrichment treatment is required to ensure that the engine has enough fuel and air to mix and ignite when starting, but the fuel injection enrichment treatment will lead to poor automobile exhaust emissions and reduce the economy of the entire vehicle.
[0005] In a first aspect, the present application provides a control method for a vehicle, the vehicle comprising an engine, an in-vehicle circulating water circuit and a heating device; the heating device is used to heat the in-vehicle circulating water circuit; the engine is operably connected to the in-vehicle circulating water circuit to adjust the temperature of the engine;
[0006] The method comprises:
[0007] When the battery power of the vehicle is less than a preset power threshold and the engine is not started, obtaining the temperature of the engine;
[0008] When the temperature of the engine is lower than a preset first temperature, controlling the heating device to start, and controlling the in-vehicle circulating water circuit to communicate with the engine to heat the engine;
[0009] When the temperature of the engine is greater than or equal to a preset first temperature, the engine is controlled to start.
[0010] Through the above method, when the battery storage capacity of the vehicle is about to be insufficient, the engine is used to burn chemical energy such as gasoline to convert it into electrical energy, thereby charging the battery, and then the engine is heated before starting the engine, thereby reducing the fuel enrichment operation caused by the cold start of the engine, thereby reducing the vehicle's exhaust emissions, and using the heating device already configured in the vehicle to heat the engine circulating water circuit that can exchange heat with the engine, without the need to add additional equipment, which will not have a significant impact on the cost of the vehicle.
[0011] In a possible implementation, the method further includes:
[0012] When the engine is connected to the in-vehicle circulating water circuit and the temperature of the engine is greater than or equal to a preset first temperature, the engine and the in-vehicle circulating water circuit are controlled to be disconnected.
[0013] Since the fuel enrichment operation will not be performed when the engine temperature is greater than or equal to the preset first temperature, and the temperature will continue to rise after the engine is started, there is no need to continue using the vehicle's circulating water circuit to heat the engine. In order not to affect the normal functions of the vehicle's other components by the vehicle's circulating water circuit, the engine and the vehicle's circulating water circuit are controlled to be disconnected to reduce the impact of the engine on the vehicle's circulating water circuit.
[0014] In a possible implementation, the method further includes:
[0015] When the engine is started, the engine and the in-vehicle circulating water path are controlled to be disconnected.
[0016] The method of this embodiment is different from the above method of determining the openness of the passage between the engine and the circulating water circuit in the vehicle by temperature. In addition, the openness of the passage between the engine and the circulating water circuit in the vehicle can be achieved by the starting state of the engine, thereby improving the diversity of control methods.
[0017] In a possible implementation manner, the in-vehicle circulating water circuit is also used to adjust the temperature in the vehicle; the method further includes:
[0018] When the in-vehicle temperature requirement is lower than a preset second temperature and the temperature of the engine is lower than a preset first temperature, the in-vehicle circulating water circuit is controlled to be disconnected from the engine, and the engine is controlled to start in a fuel injection enrichment mode.
[0019] Since the main function of the in-car circulating water circuit includes providing the appropriate temperature required by the user in the car, that is, the in-car circulating water circuit is connected to the vehicle's air conditioning outlet, therefore, when the in-car temperature requirement is heating, the air conditioning outlet needs to be opened, and the heating device heats the in-car circulating water circuit. Therefore, the operation of connecting the in-car circulating water circuit with the engine can simultaneously assist the engine and the in-car temperature to rise. However, if the in-car temperature requirement is lower, for example, lower than the ambient temperature, the air conditioning outlet also needs to be in an open state, and the in-car circulating water circuit will be cooled by the refrigeration device to release the low temperature through the air conditioning outlet. Since the overall temperature of the in-car circulating water circuit is lower than the ambient temperature and the engine temperature, it will not heat up the engine. Therefore, it is necessary to control the in-car circulating water circuit to be disconnected from the engine, and the engine executes the fuel injection enrichment start mode to ensure that the sufficient air-fuel ratio can support the normal start of the engine.
[0020] In a possible implementation manner, the engine includes an engine circulating water circuit, and an electronic valve is provided between the engine circulating water circuit and the in-vehicle circulating water circuit, for connecting or disconnecting the engine circulating water circuit and the in-vehicle circulating water circuit; controlling the in-vehicle circulating water circuit to be connected to the engine includes:
[0021] The electronic valve is controlled to connect the engine circulating water circuit with the in-vehicle circulating water circuit.
[0022] The engine circulating water circuit is set around the engine, so the temperature of the engine and the engine circulating water circuit is always consistent. By setting up the engine circulating water circuit, a buffer amount of water can be pre-stored in the engine, and the operation of connecting the circulating water circuit in the vehicle with the engine can be converted into direct replacement of water flow, thereby realizing rapid temperature transfer.
[0023] In a second aspect, the present application provides a vehicle controller, comprising:
[0024] A processor, and a memory communicatively connected to the processor;
[0025] The memory stores computer-executable instructions;
[0026] The processor executes the computer-executable instructions stored in the memory to implement a vehicle control method.
[0027] In a third aspect, the present application provides a vehicle, including an engine, an electronic valve, an in-vehicle circulating water circuit and a heating device, and a vehicle controller;
[0028] The heating device is used to heat the in-vehicle circulating water circuit;
[0029] The in-vehicle circulating water circuit is operably connected to the engine and is used to adjust the temperature of the engine;
[0030] The electronic valve is used to connect or disconnect the engine and the in-vehicle circulating water circuit;
[0031] The vehicle controller is used to execute a vehicle control method.
[0032] In a possible implementation, the electronic valve includes a first opening, a second opening, and a third opening; when the first opening and the second opening are opened, the engine and the in-vehicle circulating water circuit are connected; when the first opening and the third opening are opened, the engine and the in-vehicle circulating water circuit are not connected.
[0033] In a possible implementation manner, the engine includes an engine circulating water circuit, and an electronic valve is provided between the engine circulating water circuit and the in-vehicle circulating water circuit, for connecting or disconnecting the engine circulating water circuit and the in-vehicle circulating water circuit;
[0034] The inlet of the engine circulating water circuit is connected to the outlet of the engine, and the outlet of the engine circulating water circuit is connected to the inlet of the engine;
[0035] The inlet of the in-vehicle circulating water circuit is connected to the third opening, and the outlet of the in-vehicle circulating water circuit is connected to the first opening;
[0036] The second opening of the electronic valve is connected to the outlet of the engine, and the inlet of the engine is connected to the third opening of the electronic valve.
[0037] In a possible implementation manner, the engine circulating water circuit and the in-vehicle circulating water circuit are respectively provided with water pumps for accelerating the flow of water in the engine circulating water circuit and the in-vehicle circulating water circuit.
[0038] In a possible implementation manner, the vehicle further includes a water tank, which is respectively connected to the engine circulating water circuit and the vehicle internal circulating water circuit to replenish the water in the engine circulating water circuit and the vehicle internal circulating water circuit.
[0039] In a fourth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to implement a vehicle control method when executed by a processor.
[0040] In a fifth aspect, the present application provides a computer program product, including a computer program, which implements a vehicle control method when executed by a processor.
[0041] The vehicle and its control method, controller, storage medium and program product provided by the present application obtain the temperature of the engine when the battery power of the vehicle is less than a preset power threshold and the engine is not started; when the temperature of the engine is lower than a preset first temperature, control the heating device to start, and control the in-vehicle circulating water circuit to be connected to the engine to heat the engine; when the temperature of the engine is greater than or equal to the preset first temperature, control the engine to start. Compared with the defects in the prior art, the present application performs the operation of preheating before starting when the engine is cold started, thereby avoiding triggering the fuel enrichment operation at start-up, thereby reducing emissions and fuel economy problems caused by fuel enrichment, improving the overall performance of the vehicle, and will not make major changes to the original structure, reducing the cost expenditure of the vehicle and improving the market competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0042] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0043] Figure 1 A schematic diagram of an application structure of a vehicle control method provided in an embodiment of the present application;
[0044] Figure 2 A schematic diagram of a partial structure of a temperature adjustment component provided in an embodiment of the present application;
[0045] Figure 3 A schematic diagram of the structure of a vehicle controller provided in an embodiment of the present application;
[0046] Figure 4 A schematic diagram of a partial structure of a vehicle provided in an embodiment of the present application;
[0047] Figure 5 A schematic flow chart of a vehicle control method provided in an embodiment of the present application;
[0048] Figure 6 A schematic diagram of a portion of the structure of a hybrid vehicle provided in an embodiment of the present application.
[0049] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0050] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with the present application. On the contrary, they are only examples of devices and methods consistent with some aspects of the present application, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0051] Among new energy vehicles, hybrid vehicles and extended-range electric vehicles and other types of vehicles will convert chemical energy into electrical energy through the engine to prevent the vehicle's battery from storing insufficient power and being unable to drive the vehicle.
[0052] Specifically, for hybrid vehicles, the engine can either drive the vehicle directly or charge the battery through a generator, and then use electricity to drive the vehicle. Especially when the vehicle is starting or driving at a low speed, using electricity to drive the vehicle can improve energy utilization compared to engine driving.
[0053] For extended-range electric vehicles, the vehicle is mainly driven by electric energy, and the main function of the engine is to charge the battery, so that when the stored power of the vehicle is exhausted, the engine can also convert fuel into electric energy and store it in the battery for continued use by the vehicle. That is, when the battery of the vehicle is fully charged, the vehicle is driven by the electric motor; when the battery is insufficient, the engine starts and generates electricity, and after charging the battery, it is driven by the electric motor again.
[0054] The above-mentioned engines will usually start directly when the temperature is above the preset temperature to convert the fuel into electrical energy. If the temperature of the engine is below the preset temperature, although the conversion will be started, the fuel enrichment process will also be performed at the same time to ensure that there is enough fuel and air mixed for ignition when the engine starts.
[0055] For example, when the engine temperature is lower than a preset temperature, such as 60°C, the fuel injection enrichment operation is performed to increase the amount of fuel injection to form a sufficiently concentrated combustible mixture to ensure normal engine start and stable combustion. As the engine continues to run, its temperature continues to rise, and the amount of fuel injection gradually decreases until the engine temperature reaches the preset temperature, at which point the fuel injection enrichment operation is stopped.
[0056] However, the above-mentioned fuel injection enrichment operation will bring about the adverse effect of poor automobile exhaust emissions, reducing the economy and environmental protection of the entire vehicle.
[0057] Based on the above technical problems, the inventive concept of this application is: before the engine starts, the engine water temperature is raised to an appropriate temperature by using the existing heating device, without adding additional heating devices, while reducing the fuel enrichment operation performed due to insufficient engine temperature, thereby reducing the economy and environmental protection of the whole vehicle caused by the fuel enrichment operation, aiming to solve the above technical problems of the prior art.
[0058] The specific application scenarios of this application are as follows:
[0059] Figure 1 This is a schematic diagram of the application structure of the vehicle control method provided in the embodiment of the present application. Figure 1 As shown, the vehicle includes an engine 100, an in-vehicle circulating water circuit 200, a heating device 300, and a vehicle controller 400. The engine 100 includes an engine circulating water circuit 101, and the temperature of the engine circulating water circuit 101 is consistent with that of the engine 100, so adjusting the temperature of the engine circulating water circuit 101 can adjust the temperature of the engine 100.
[0060] Specifically, the heating device 300 is connected to the in-vehicle circulating water circuit 200 , thereby adjusting the temperature of the engine circulating water circuit 101 , and further indirectly adjusting the temperature of the engine 100 .
[0061] Furthermore, since the starting temperature of the auxiliary engine 100 is medium temperature, for example 60°C, which is below the boiling point of water, after the engine 100 is started and runs for a period of time, the temperature of the engine 100 will be much higher than this temperature. Therefore, as long as the connection between the in-vehicle circulating water circuit 200 and the engine 100 is cut off, the cooling function of the in-vehicle circulating water circuit 200 will not be affected when cooling is needed in the vehicle.
[0062] Exemplarily, the heating device 300, such as a water-heating electric heater for heating the air conditioner in the vehicle, can heat the circulating water circuit 200 in the vehicle, thereby eliminating the need for additional heating equipment, reducing the vehicle configuration cost, and realizing a new function of heating the engine.
[0063] Figure 2 This is a partial structural diagram of the temperature adjustment component provided in the embodiment of the present application. Figure 2 As shown, optionally, the temperature adjustment component may include a heating device 300 , an electronic valve (eg, an electronic three-way valve 302 ), a water pump (eg, an electronic water pump 303 ), an in-vehicle circulating water circuit 200 , and an engine circulating water circuit 101 .
[0064] Among them, the heating device 300 directly heats the water in the in-vehicle circulating water circuit 200 to increase the temperature of the in-vehicle circulating water circuit 200, and the electronic water pump 303 promotes the flow of water in the in-vehicle circulating water circuit 200, thereby accelerating the temperature diffusion process and increasing the heating rate.
[0065] Exemplarily, the electronic three-way valve 302 can ensure that the water in the vehicle's circulating water circuit 200 can circulate normally, while also allowing the water in the vehicle's circulating water circuit 200 to circulate with other water circuits, thereby circulating the increased temperature of the vehicle's circulating water circuit 200 through other water circuits to provide the required devices, such as the engine.
[0066] Figure 3 This is a partial structural diagram of the vehicle controller provided in the embodiment of the present application. Figure 3 As shown, in some embodiments, the vehicle controller 400 includes a processor 401, which is connected to the engine 100 and the heating device 300, and is used to implement the start timing control of the engine 100 and the start timing control of the heating device 300.
[0067] The vehicle controller 400 is also provided with a memory 402, and the processor 401 and the memory 402 can be arranged inside the vehicle. Optionally, the memory 402 can be integrated with the processor 401, or the memory 402 and the processor 401 can be two independent components.
[0068] The memory 402 is used to store data, such as various software control programs, some modes and / or parameters of the vehicle, etc. Specifically, the program may include program codes, and the program codes include computer operation instructions.
[0069] The processor 401 may include, for example, one or more circuits or chips with control functions. The processor 401 is used to control the operation of the vehicle and respond to user operations through various software control programs stored in the memory 402 .
[0070] The execution subject of the embodiment of the present application may be the processor 401 in the vehicle, or may be the server corresponding to the vehicle. The server is located in the cloud, connected to the processor 401 of the vehicle through the network, and issues control instructions to the vehicle, or forwards the control instructions sent by the user through the terminal device to the vehicle, etc.
[0071] The vehicle controller 400 may also be provided with a communication component 403, which enables the vehicle to communicate with an associated terminal device, so that the user can send the selected function, such as vehicle cold start, through the terminal device, thereby controlling the processor to perform the corresponding cold start operation.
[0072] In specific implementation, the terminal device can directly wirelessly connect to the vehicle through the communication component 403 to achieve the above sending action. Alternatively, the vehicle accesses the network and connects to the server through the communication component 403, so that the terminal device can send the user's selected function to the cleaning device through the server.
[0073] It should be understood that the vehicle may have multiple communication components 403, and different communication components 403 have different communication functions. For example, a vehicle may have both a Bluetooth module and a WiFi module. In this implementation, the user may select the communication component 403 to be used, or trigger the default communication component 403 for communication connection, or trigger the communication component 403 commonly used by the user for communication connection, or multiple communication components 403 are in working state until one of the communication components 403 receives a function request sent by the user through the terminal device.
[0074] Figure 4 This is a schematic diagram of the structure of a vehicle provided in an embodiment of the present application. Figure 4 As shown, in some embodiments, the vehicle further includes a first temperature sensor 102 and a second temperature sensor 305 , wherein the first temperature sensor 102 is used to detect the temperature of the engine circulating water circuit 101 , and the second temperature sensor 305 is used to detect the temperature of the in-vehicle circulating water circuit 200 .
[0075] It should be understood that the first temperature sensor 102 can also be set at the engine 100 to detect the temperature of the engine 100. Since the temperature of the engine 100 and the engine circulating water circuit 101 are consistent, the specific detection of the engine 100 or the engine circulating water circuit 101 can be set according to actual needs.
[0076] Continue to refer to Figure 4 As shown, the vehicle also includes a water tank 500, which is respectively connected to the engine circulating water circuit 101 and the in-vehicle circulating water circuit 200 to timely replenish the water in the engine circulating water circuit 101 and the in-vehicle circulating water circuit 200, reduce the lack of water caused by the series connection of the water circuits, and improve the temperature regulation effect of the water circulation.
[0077] The following takes the execution subject as a processor in a vehicle as an example, and describes in detail the technical solution of the present application and how the technical solution of the present application solves the above technical problems through specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
[0078] Figure 5 This is a flow chart of a vehicle control method provided in an embodiment of the present application. Figure 5 As shown, the method includes:
[0079] S501. When the battery power of the vehicle is less than a preset power threshold and the engine is not started, obtain the temperature of the engine.
[0080] S502: When the temperature of the engine is lower than a preset first temperature, the heating device is controlled to start, and the in-vehicle circulating water circuit is controlled to be connected to the engine to heat the engine.
[0081] S503: When the temperature of the engine is greater than or equal to a preset first temperature, control the engine to start.
[0082] Exemplarily, before the engine is started and the temperature of the engine is lower than a preset first temperature, it is considered a cold start.
[0083] For example, when the vehicle is turned off, the engine temperature will gradually decrease. When the engine is turned off for a long enough time, the engine temperature will be consistent with the ambient temperature. Starting the engine at this time is called a cold start.
[0084] The opposite start mode is a hot start. During a hot start, the engine temperature is usually higher than the ambient temperature, for example, the engine is at or close to normal operating temperature. At this time, no additional treatment is required for the engine to operate normally.
[0085] When the engine is cold started, the processor will be triggered to execute the preset fuel enrichment operation due to the low engine temperature. If you do not want to trigger it, the engine needs to be at least above the trigger temperature when starting. Therefore, this can be achieved by heating the engine before starting.
[0086] The preset first temperature is the trigger temperature, and the preset first temperature is usually set relatively low. Generally, the temperature having better engine emissions and fuel economy is calculated based on comprehensive considerations of the engine principle and the power loss required for heating.
[0087] As the engine's internal resistance decreases and mechanical losses continue to decrease as the temperature rises, the temperature increase does not have much effect on reducing fuel consumption, and after the engine temperature exceeds 110°C, emissions and fuel economy will deteriorate.
[0088] In addition, the temperature of the engine's circulating water circuit is increased by consuming electrical energy through heating in a heating device, and then transmitted to the engine. Heating requires a certain amount of time cost. The higher the temperature setting, the greater the time cost, and the worse the user experience.
[0089] Therefore, the preset first temperature can be set to 60°C, which not only meets the requirement that the engine can be quickly raised to this temperature in a short time, but also meets the requirement that the engine can be started according to the theoretical air-fuel ratio of 14.7, thereby ensuring optimal engine combustion and meeting optimal emissions and optimal fuel economy.
[0090] After the preset first temperature is set in advance, since the preset first temperature of 60°C is a medium-to-high temperature among conventional temperatures, the water temperature can fully meet the heating needs of the engine. Therefore, it can be achieved by utilizing the engine circulating water circuit set around the existing engine. The engine circulating water circuit is heated by a heating device, and then the temperature of the engine adjacent to the engine circulating water circuit is increased through the heat exchange function. There is no need to significantly modify the existing structure or add high-cost new equipment, thereby reducing the production cost of the vehicle.
[0091] The method provided in this embodiment allows the engine to perform a preheating and then starting operation in a cold start condition, thereby avoiding triggering a fuel enrichment operation at start-up, thereby reducing emissions and fuel economy problems caused by fuel enrichment, improving the overall performance of the vehicle, and will not make major changes to the original structure, thereby reducing vehicle cost expenditures and improving product market competitiveness.
[0092] Optionally, when the engine circulating water circuit is connected to the vehicle circulating water circuit and the water temperature of the engine circulating water circuit is greater than or equal to a preset first temperature, it indicates that the engine starting conditions have been met, and the heater is controlled to stop running.
[0093] In the above embodiment, the method of controlling the vehicle's heating device to increase the temperature of the engine's circulating water circuit may include:
[0094] The in-vehicle circulating water circuit is controlled to be connected to the engine circulating water circuit. The temperature of the in-vehicle circulating water circuit is higher than the temperature of the engine circulating water circuit, so that the water temperature of the engine circulating water circuit can be increased through the flow of water.
[0095] For example, the in-vehicle circulating water circuit is the vehicle's air-conditioning circulating water circuit. The air-conditioning has a heating function. The water in the corresponding air-conditioning circulating water circuit can be heated and heated. After the heated water is connected to the engine circulating water circuit and continues to circulate, the temperature of the engine circulating water circuit can be increased, and then the engine temperature set near the engine circulating water circuit can be increased through heat exchange.
[0096] The water in the vehicle's internal circulation water circuit is heated by a heater, and the water circulation is promoted by a water pump. Therefore, while controlling the connection between the vehicle's internal circulation water circuit and the engine's circulation water circuit, the heater and the water pump must also be started, so that the water in the vehicle's internal circulation water circuit can maintain a high temperature and flow into the engine's circulation water circuit.
[0097] Exemplarily, a three-way valve is provided on the in-vehicle circulating water circuit, and the in-vehicle circulating water circuit is controlled to be connected or disconnected with the engine circulating water circuit by controlling the opening of the three-way valve.
[0098] In the above embodiment, after controlling the engine to start, the vehicle control method further includes:
[0099] Control the engine circulating water circuit and the vehicle circulating water circuit to be disconnected.
[0100] Because the engine circulating water circuit directly exchanges heat with the engine, if the engine circulating water circuit and the vehicle circulating water circuit are still connected after the engine is started, the circulation route will be lengthened, and the engine will continue to heat up after starting. At this time, the temperature of the engine will reversely enter the engine circulating water circuit through heat exchange, and then enter the vehicle circulating water circuit. This makes the heater's power-consuming heating operation unable to achieve the corresponding heating function, so there is no need to connect the engine circulating water circuit and the vehicle circulating water circuit.
[0101] Among them, since the engine circulating water circuit and the vehicle circulating water circuit are not connected, when the vehicle circulating water circuit does not need to be heated, for example, when the vehicle air conditioner does not need to provide heat to the vehicle, the heater is turned off to save vehicle electricity.
[0102] Optionally, when the heater is turned off, the circulating water circuit in the vehicle is not heated and there is no need to perform water circulation heating, so the water pump can also be turned off to further reduce the vehicle's power consumption.
[0103] In some embodiments, the in-vehicle circulating water circuit can also be used as a refrigeration circulation water circuit when the vehicle realizes the refrigeration function. At this time, the heater cannot be operated, otherwise it will affect the normal realization of the refrigeration function.
[0104] However, since the temperature of the circulating water circuit in the car is low during cooling and is usually lower than the ambient temperature, the circulating water circuit in the car cannot be connected to the circulating water circuit of the engine when the engine is started, thereby not making the engine temperature lower and avoiding aggravating the negative impact caused by the enrichment of the engine fuel injection.
[0105] Optionally, when the engine circulating water circuit and the in-vehicle circulating water circuit are connected and the water temperature of the in-vehicle circulating water circuit is greater than or equal to a preset second temperature, the engine circulating water circuit and the in-vehicle circulating water circuit are controlled to be disconnected; the preset second temperature is greater than the preset first temperature.
[0106] For example, the preset second temperature is a temperature at which the engine circulating water path still meets the preset first temperature after the water in the vehicle circulating water path is mixed with the water in the engine circulating water path. Therefore, the temperature of the vehicle circulating water path can be monitored to assist in determining when to turn off the heating device, so as to avoid the heating device performing useless heating operations and wasting electric energy due to an error in monitoring the temperature of the engine circulating water path.
[0107] The vehicle control method of the present application is described in detail below in conjunction with a specific embodiment of a hybrid vehicle.
[0108] Figure 6 This is a schematic diagram of the structure of a hybrid vehicle provided in an embodiment of the present application. Figure 6 As shown, the hybrid vehicle comprises:
[0109] The engine 100 , the engine circulating water circuit 101 , the electronic three-way valve 302 , the electronic water pump 303 , the in-vehicle circulating water circuit 200 and the heating device 300 .
[0110] The engine circulating water circuit 101 is provided with a pressurized electronic water pump 303 and a supercharger 103, which are used to control the water flow in the engine circulating water circuit 101 and improve the heat exchange efficiency with the engine 100; the engine circulating water circuit 101 is also provided with an oil cooler, which is used to control the engine circulating water circuit 101 to perform the engine 100 cooling operation when the engine 100 is started and the temperature is high.
[0111] The in-vehicle circulating water circuit 200 is provided with a heating device 300 and an electronic water pump 303 . The heating device 300 can heat the water in the in-vehicle circulating water circuit 200 , while the electronic water pump 303 promotes the flow of water in the in-vehicle circulating water circuit 200 .
[0112] An air conditioning outlet 301 for adjusting the temperature inside the vehicle is also provided on the in-vehicle circulating water circuit 200. The air conditioning outlet 301 includes an evaporator and a warm air outlet. The warm air outlet is arranged on the front side of the evaporator and is connected to the interior space of the vehicle. When the warm air outlet is opened, the temperature of the in-vehicle circulating water circuit 200 can be transferred to the interior space of the vehicle through the evaporator.
[0113] An electronic three-way valve 302 is also provided on the in-vehicle circulating water circuit 200 .
[0114] The three-way valve 302 includes a first opening 1 , a second opening 2 and a third opening 3 .
[0115] For example, when the first opening 1 and the second opening 2 are opened, the engine circulating water path 101 and the in-vehicle circulating water path 200 are in communication with each other.
[0116] For another example, when the first opening 1 and the third opening 3 are opened, the engine circulating water path 101 and the in-vehicle circulating water path 200 are not connected.
[0117] Exemplarily, the inlet of the engine circulating water circuit 101 is connected to the outlet of the engine 100 , and the outlet of the engine circulating water circuit 101 is connected to the inlet of the engine 100 .
[0118] For example, the inlet of the in-vehicle circulating water circuit 200 is connected to the third opening 3 , and the outlet of the in-vehicle circulating water circuit 200 is connected to the first opening 1 .
[0119] For another example, the second opening 2 of the electronic three-way valve 302 is connected to the outlet of the engine 100 , and the inlet of the engine 100 is connected to the third opening 3 of the electronic three-way valve 302 .
[0120] In some embodiments, the vehicle further includes an expansion water tank 500 , which is respectively connected to the engine circulating water circuit 101 and the in-vehicle circulating water circuit 200 to replenish the water in the engine circulating water circuit 101 and the in-vehicle circulating water circuit 200 .
[0121] This embodiment also provides a vehicle controller for a vehicle, which can execute the vehicle control method of the above embodiment. Its implementation principle and technical effect are similar, and this embodiment will not be repeated here.
[0122] The embodiment of the present invention can divide the electronic device or the main control device into functional modules according to the above method example. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present invention is schematic and is only a logical function division. There may be other division methods in actual implementation.
[0123] In the specific implementation of the aforementioned vehicle control device, each module can be implemented as a processor, and the processor can execute computer-executable instructions stored in the memory, so that the processor executes the aforementioned vehicle control method.
[0124] In the above embodiments, it should be understood that the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), etc. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the invention may be directly implemented as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.
[0125] The memory may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk storage.
[0126] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of this application is not limited to only one bus or one type of bus.
[0127] The above describes the solutions provided by the embodiments of the present invention with respect to the functions implemented by the electronic device and the main control device.
[0128] It is understandable that, in order to realize the above functions, the electronic device or the main control device includes the corresponding hardware structure and / or software module for executing each function.
[0129] In combination with the units and algorithm steps of each example described in the embodiment disclosed in the embodiment of the present invention, the embodiment of the present invention can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solution of the embodiment of the present invention.
[0130] The present application also provides a computer program product, comprising a computer program, which implements a vehicle control method when executed by a processor.
[0131] The computer program product provided in this embodiment can execute the vehicle control method of the above-mentioned embodiment. Its implementation principle and technical effect are similar, and this embodiment will not be repeated here.
[0132] The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the above vehicle control method is implemented.
[0133] The computer-readable storage medium provided in this embodiment can execute the vehicle control method of the above-mentioned embodiment, and its implementation principle and technical effect are similar, which will not be described in detail in this embodiment.
[0134] The computer-readable storage medium mentioned above may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The readable storage medium may be any available medium that can be accessed by a general or special-purpose computer.
[0135] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (Application Specific Integrated Circuits, referred to as: ASIC). Of course, the processor and the readable storage medium can also exist as discrete components in an electronic device or a main control device.
[0136] Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, disk or optical disk and other media that can store program codes.
[0137] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards, and provide corresponding operation entrances for users to choose to authorize or refuse.
[0138] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A vehicle control method, characterized in that: The vehicle comprises an engine, an in-vehicle circulating water circuit and a heating device; the heating device is used to heat the in-vehicle circulating water circuit; The engine is operably connected to the in-vehicle water circulation circuit for regulating the temperature of the engine; The method comprises: When the battery power of the vehicle is less than a preset power threshold and the engine is not started, obtaining the temperature of the engine; When the temperature of the engine is lower than a preset first temperature, controlling the heating device to start, and controlling the in-vehicle circulating water circuit to communicate with the engine to heat the engine; When the temperature of the engine is greater than or equal to a preset first temperature, the engine is controlled to start.
2. The method according to claim 1, characterized in that The method further comprises: When the engine is connected to the in-vehicle circulating water circuit and the temperature of the engine is greater than or equal to a preset first temperature, the engine and the in-vehicle circulating water circuit are controlled to be disconnected.
3. The method according to claim 1, characterized in that: The method further comprises: When the engine is started, the engine and the in-vehicle circulating water path are controlled to be disconnected.
4. The method according to claim 1, characterized in that The in-vehicle circulating water circuit is also used to adjust the temperature in the vehicle; the method further includes: When the in-vehicle temperature requirement is lower than a preset second temperature and the temperature of the engine is lower than a preset first temperature, the in-vehicle circulating water circuit is controlled to be disconnected from the engine, and the engine is controlled to start in a fuel injection enrichment mode.
5. The method according to any one of claims 1 to 4, characterized in that: The engine comprises an engine circulating water circuit, and an electronic valve is provided between the engine circulating water circuit and the in-vehicle circulating water circuit, for connecting or disconnecting the engine circulating water circuit and the in-vehicle circulating water circuit; The controlling the in-vehicle circulating water circuit to communicate with the engine comprises: The electronic valve is controlled to connect the engine circulating water circuit with the in-vehicle circulating water circuit.
6. A vehicle controller, characterized in that: include: A processor, and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1 to 5.
7. A vehicle, characterized in that: Including engine, electronic valve, in-vehicle water circulation circuit and heating device, as well as vehicle controller; The heating device is used to heat the in-vehicle circulating water circuit; The in-vehicle circulating water circuit is operably connected to the engine and is used to adjust the temperature of the engine; The electronic valve is used to connect or disconnect the engine and the in-vehicle circulating water circuit; The vehicle controller is used to execute the method according to any one of claims 1 to 5.
8. The vehicle according to claim 7, characterized in that The electronic valve includes a first opening, a second opening and a third opening; when the first opening and the second opening are opened, the engine and the in-vehicle circulating water circuit are connected; when the first opening and the third opening are opened, the engine and the in-vehicle circulating water circuit are not connected.
9. The vehicle according to claim 8, characterized in that The engine comprises an engine circulating water circuit, and an electronic valve is provided between the engine circulating water circuit and the in-vehicle circulating water circuit, for connecting or disconnecting the engine circulating water circuit and the in-vehicle circulating water circuit; The inlet of the engine circulating water circuit is connected to the outlet of the engine, and the outlet of the engine circulating water circuit is connected to the inlet of the engine; The inlet of the in-vehicle circulating water circuit is connected to the third opening, and the outlet of the in-vehicle circulating water circuit is connected to the first opening; The second opening of the electronic valve is connected to the outlet of the engine, and the inlet of the engine is connected to the third opening of the electronic valve.
10. The vehicle according to claim 9, characterized in that The engine circulating water circuit and the in-vehicle circulating water circuit are also provided with water pumps respectively for accelerating the flow of water in the engine circulating water circuit and the in-vehicle circulating water circuit.
11. The vehicle according to any one of claims 9-10, characterized in that: The vehicle further comprises a water tank, which is respectively connected to the engine circulating water circuit and the vehicle internal circulating water circuit to replenish the water in the engine circulating water circuit and the vehicle internal circulating water circuit.
12. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 5 when executed by a processor.
13. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the method according to any one of claims 1 to 5 is implemented.