Vehicle starting method, device and equipment

Abstract

The invention relates to the technical field of new energy vehicles, in particular to a vehicle starting method, device and equipment. A vehicle starting method comprises the steps that state information of a vehicle is obtained, and whether the vehicle needs to trigger and execute fuel heating or not is determined according to the state information; when it is determined that fuel heating needs to be triggered and executed and the vehicle needs to start an engine, a heating control method is determined according to the state information; and fuel is heated according to the heating control method, and the vehicle is started. In the embodiment of the invention, by detecting the state information of the vehicle in real time, whether the engine has the starting obstacle during low-temperature cold starting is judged. And when it is determined that starting obstacles exist, fuel heating is triggered and executed, and heating control methods such as heating time and fuel injection quantity are calculated specifically according to the water temperature and the ethanol content of the engine, so that safe and reliable cold starting of the engine at the low temperature is ensured.

Description

Technical Field

[0001] The present application relates to the field of new energy vehicle technology, and specifically to a vehicle starting method, device and equipment. Background Art

[0002] With the rapid development of the automobile market, the consumption of gasoline fuel is increasing. However, as the price of gasoline fuel continues to rise, and considering the pollution of gasoline fuel to the environment, vehicle fuels are also becoming more diversified, and the development of new energy fuels and clean fuels has become the main trend today. Among them is the application of ethanol flexible fuel.

[0003] Ethanol flexible fuel is to add ethanol to gasoline fuel in a certain proportion, reducing the combustion of gasoline fuel while still allowing the vehicle to travel normally. However, ethanol fuel has a large latent heat of vaporization, and its evaporation temperature under the theoretical air-fuel ratio is higher than that of conventional gasoline. This results in different cold start performance of the engine at different temperatures, especially at low temperatures, where the high ethanol content may lead to insufficient fuel evaporation, resulting in difficulty in starting, which will further affect the driving performance of hybrid vehicles and the power battery's power retention performance. Summary of the invention

[0004] The embodiments of the present invention provide a vehicle starting method, device and equipment, which are used to solve the problem of difficulty in cold starting of a vehicle under ethanol flexible fuel in the prior art.

[0005] In a first aspect, an embodiment of the present invention provides a vehicle starting method, the method comprising: Acquiring vehicle status information, and determining whether the vehicle needs to trigger fuel heating according to the status information; When it is determined that fuel heating needs to be triggered and the vehicle needs to start the engine, determining a heating control method according to the state information; The fuel is heated according to the heating control method, and the vehicle is started.

[0006] Optionally, the state information includes ambient temperature, engine water temperature, ethanol content of the fuel, and heater state, and determining whether the vehicle needs to trigger fuel heating according to the state information includes: determining whether a start failure may occur when starting the engine according to the ambient temperature, the engine water temperature, the ethanol content percentage of the fuel, and the heater state; When it is determined that the engine may fail to start, determining that fuel heating needs to be triggered; Among them, when the ambient temperature is lower than a preset first temperature threshold, the engine water temperature is lower than a preset second temperature threshold, the ethanol content is higher than a preset ethanol content threshold, and the heater has no faults, it is determined that the engine may fail to start.

[0007] Optionally, the state information includes engine water temperature and ethanol content of fuel, and determining the heating control method according to the state information includes: determining a first heating time for heating the fuel according to the engine water temperature and the ethanol content; determining a fuel injection amount correction coefficient according to the first heating time, the engine water temperature and the ethanol content; Correcting the preset fuel injection amount according to the fuel injection amount correction coefficient to determine the target fuel injection amount; The heating control method is determined according to the first heating time and the target fuel injection amount.

[0008] Optionally, heating the fuel according to the heating control method and starting the vehicle includes: sending a heating instruction and the first heating time to a heater through a first communication bus, so as to control the heater to heat the fuel according to the first heating time; The start instruction and the target fuel injection amount are sent to the engine via the second communication bus to control the engine to start by injecting fuel and igniting according to the target fuel injection amount after the engine speed reaches a set value.

[0009] Optionally, after starting the vehicle, the method further includes: Determining whether the engine is started successfully; When the engine is started successfully, the engine is controlled to provide power output and to perform hybrid driving with the power battery; When the engine fails to start, the number of engine starts is counted and the engine is restarted; If the number of engine starts reaches the preset threshold, the start failure fault code is recorded and the vehicle is controlled to run purely on electric power.

[0010] Optionally, the method further includes: When it is determined that the vehicle needs to travel by means of a power battery, determining a battery state of the power battery according to the power level and discharge power of the power battery; Determining a driving restriction condition of the vehicle according to the battery state of the power battery, and controlling the vehicle to perform pure electric driving under the driving restriction condition; Among them, when there is no need to start the engine, or the fuel heating is not completed before starting the engine, or the number of engine start failures reaches a preset threshold, it is determined that the vehicle needs to be driven purely by the power battery.

[0011] Optionally, determining the battery state of the power battery according to the power level and discharge power of the power battery includes: When the power level of the power battery is higher than a preset first power threshold, and the discharge power of the power battery is higher than a preset first power threshold, determining that the battery state of the power battery is a first battery state; When the power level of the power battery is lower than a preset first power threshold but higher than a preset second power threshold, and the discharge power of the power battery is lower than a preset first power threshold but higher than a preset second power threshold, determining that the battery state of the power battery is the second battery state; When the power level of the power battery is lower than a preset second power threshold, and the discharge power of the power battery is lower than a preset second power threshold, determining that the battery state of the power battery is a third battery state; Determining a driving restriction condition of the vehicle according to the battery state of the power battery includes: When the battery state of the power battery is the first battery state, no speed limit is imposed on the vehicle; When the battery state of the power battery is the second battery state, limiting the vehicle running speed to below the first speed threshold, and controlling the vehicle to light up a turtle speed indicator; When the battery state of the power battery is the third battery state, the vehicle is restricted from traveling.

[0012] In a second aspect, an embodiment of the present invention provides a vehicle starting device, the device comprising: A first determination module, which obtains status information of the vehicle and determines whether the vehicle needs to trigger fuel heating according to the status information; a second determining module, determining a heating control method according to the state information when it is determined that fuel heating needs to be triggered and the vehicle needs to start the engine; The heating and starting module heats the fuel according to the heating control method and starts the vehicle.

[0013] In a third aspect, the present invention provides an electronic device, including: at least one processor; and at least one memory in communication with the processor, wherein: The memory stores program instructions executable by the processor, and the processor calls the program instructions to execute the method as described in any one of the first aspects.

[0014] In a fourth aspect, an embodiment of the present invention provides a storage medium, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute any method described in the first aspect.

[0015] In the embodiment of the present invention, by detecting the vehicle status information in real time, and judging whether the engine has a starting obstacle at low temperature cold start according to the ambient temperature, engine water temperature, ethanol content in the fuel, etc., the fuel heating is triggered when it is determined that there is a starting obstacle, and the heating control method such as the heating time and the injection amount is calculated specifically according to the engine water temperature and the ethanol content, so as to ensure the safety and reliability of the cold start of the engine at low temperature.

[0016] Furthermore, when the vehicle needs to be driven purely by power batteries, the vehicle can be controlled to drive purely by power batteries according to the battery status of the power batteries, so as to avoid the power batteries from being over-discharged quickly, causing the vehicle to lose power and thus cause accidents. While ensuring the safe driving of the vehicle, the power batteries can be prevented from being over-discharged, which may affect the performance and lifespan. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 Shown is a schematic diagram of a vehicle starting system provided by an embodiment of the present application; Figure 2 Shown is a flow chart of a vehicle starting method provided by an embodiment of the present application; Figure 3 Shown is a schematic structural diagram of a vehicle starting device provided in an embodiment of the present application; Figure 4 Shown is a schematic structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0019] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0020] It should be clear that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0021] like Figure 1 FIG. 1 is a schematic diagram of a vehicle starting system provided by an embodiment of the present invention. The vehicle starting system is deployed in a hybrid vehicle model and is used to start the vehicle to control the vehicle driving. Figure 1 The vehicle starting system includes a power system control unit (PCU) 110 , a plurality of sensors 120 , a heating device 130 and a power battery 140 .

[0022] Sensors 120 are deployed at various functional components of the vehicle to collect status information of the vehicle in real time. For example, the sensor deployed at the fuel tank is used to collect the ethanol content of the fuel in the fuel tank, the sensor deployed at the engine is used to collect the engine water temperature, the sensor deployed at the engine air intake is used to collect the ambient temperature, and the sensor deployed at the heater is used to collect the heater status. In addition, other sensors can also be used to collect vehicle status information such as intake pressure, intake temperature, MCU status, P1 motor status, etc.

[0023] PCU 110 is used to obtain vehicle status information from various sensors through the communication bus, and determine whether it is necessary to trigger fuel heating based on status information such as ambient temperature, engine water temperature, ethanol content, etc. When it is determined that the evaporation amount of the fuel is insufficient to complete the engine start under the current temperature state, it is determined that fuel heating needs to be performed, and a heating control method is determined specifically based on the current vehicle status information. The heating control method specifically includes a first heating time for heating the fuel and a target fuel injection amount.

[0024] The PCU is also used to send the determined heating control method to the heating device through the communication bus, so as to control the heating device to heat the fuel according to the heating control method.

[0025] The heating device 130 specifically includes a heater 131 and an engine 132. After receiving the first heating time, the heater heats the fuel according to the first heating time. After receiving the target fuel injection amount, the engine injects fuel according to the fuel injection amount when the speed reaches the set value to complete the ignition start of the vehicle.

[0026] The power battery 140 is used to realize hybrid driving of the vehicle together with the engine after the engine of the vehicle is successfully started. The power battery is also used to realize pure electric driving of the vehicle alone after the engine of the vehicle fails to start or when starting is not required. When the power battery realizes pure electric driving of the vehicle alone, in order to maintain the performance and life of the battery, driving needs to be restricted according to the battery status.

[0027] like Figure 2 As shown, it is a flow chart of a vehicle starting method provided by an embodiment of the present invention. The method is applied to Figure 1PCU shown, see Figure 2 The specific steps of the method include: S201, obtaining vehicle status information, and determining whether the vehicle needs to trigger fuel heating according to the status information.

[0028] Specifically, the vehicle status information includes the current ambient temperature outside the vehicle, the current engine water temperature, and the percentage of ethanol content in the fuel. Whether a start failure may occur when starting the engine is determined based on the ambient temperature, the engine water temperature, and the percentage of ethanol content, that is, whether the fuel at the current temperature can ensure that the engine can be successfully started.

[0029] When the ambient temperature is lower than a preset first temperature threshold, the engine water temperature is lower than a preset second temperature threshold, and the ethanol content is higher than a preset ethanol content threshold, it is determined that the ethanol content is too high at the current temperature, resulting in insufficient evaporation of the fuel, which may cause the engine to fail to start. When it is determined at the same time that the heater state is that the heater is not faulty, it is determined to trigger the execution of fuel heating to ensure that the fuel has sufficient evaporation in the low temperature environment to ensure that the engine can start normally.

[0030] S202: When it is determined that fuel heating needs to be triggered and the vehicle needs to start the engine, a heating control method is determined according to the state information.

[0031] Specifically, determining the heating control method specifically includes determining a first heating time for heating the fuel and a target fuel injection amount at the time of ignition start.

[0032] When determining the heating time, a first heating time is determined from a heating schedule according to the current engine water temperature and ethanol content, wherein a heating schedule is preset, and the heating schedule records the optimal heating time corresponding to different combinations of engine water temperature and ethanol content.

[0033] When determining the target fuel injection amount, the fuel injection amount correction coefficient is determined according to the determined first heating time, engine water temperature and ethanol content. The preset fuel injection amount is corrected by the fuel injection amount correction coefficient to determine the target fuel injection amount.

[0034] A heating control method is determined according to the determined first heating time and the target fuel injection amount.

[0035] S203, heating the fuel according to the heating control method, and starting the vehicle.

[0036] Specifically, the heating instruction and the first heating time in the heating control method are sent to the heater through the first communication bus to control the heater to heat the fuel according to the first heating time. After receiving the heating instruction, the heater controls the heating plug to heat the fuel according to the first heating time, so as to achieve accurate control of the fuel evaporation amount under the current engine water temperature and ethanol content, providing a basis for successful engine starting.

[0037] In a specific embodiment, the first communication bus is a LIN bus.

[0038] The target fuel injection amount in the start command and the heating control method is sent to the engine through the second communication bus. The engine starts the P1 motor after receiving the start command. When the PCU senses that the speed of the P1 motor reaches the set value, it allows the engine to inject fuel and ignite to start. The engine injects fuel and ignites according to the target fuel injection amount to start. The engine injects fuel and ignites according to the target fuel injection amount to ensure that there is enough fuel for the engine to complete the start at the current ethanol content.

[0039] In a specific embodiment, the second communication bus is a CAN bus.

[0040] In the embodiment of the present invention, by detecting the vehicle status information in real time, and judging whether the engine has a starting obstacle at low temperature cold start according to the ambient temperature, engine water temperature, ethanol content in the fuel, etc., the fuel heating is triggered when it is determined that there is a starting obstacle, and the heating control method such as the heating time and the injection amount is calculated specifically according to the engine water temperature and the ethanol content, so as to ensure the safety and reliability of the cold start of the engine at low temperature.

[0041] Optionally, in some embodiments, after the engine is started by fuel injection and ignition, it is necessary to determine whether the engine is started successfully. Specifically, after the engine reaches the target speed, it is determined whether the engine is started successfully by monitoring whether the P1 generator generates electricity and whether the absolute value of the actual torque value is greater than the set value.

[0042] When it is determined that the engine has started successfully, the engine provides power output and the power battery for hybrid driving, and charges the power battery as needed.

[0043] When it is determined that the engine startup fails, the number of engine startups is counted, and S201-S203 are repeatedly executed to restart the engine. When the number of engine restarts reaches a preset number threshold and the engine still fails to start successfully, a startup failure fault code is recorded, and the vehicle is controlled to run purely electrically through the power battery.

[0044] Optionally, in some embodiments, such as when the user determines that the engine does not need to be started before executing S202, or when the engine is started but the fuel heating is not completed when executing S203, or when it is determined after executing S203 that the number of engine start failures reaches a preset threshold number, the vehicle needs to drive purely on electricity using the power battery.

[0045] When it is determined that the vehicle needs to be driven purely electrically by the power battery, the battery state of the power battery is determined based on the power level and discharge power of the power battery.

[0046] When the power level of the power battery is higher than a preset first power level threshold, and the discharge power of the power battery is higher than a preset first power threshold, the battery state of the power battery is determined to be the first battery state, that is, the power battery currently has sufficient power.

[0047] When the power of the power battery is lower than a preset first power threshold but higher than a preset second power threshold, and the discharge power of the power battery is lower than a preset first power threshold but higher than a preset second power threshold, the battery state of the power battery is determined to be the second battery state, that is, the power battery is currently insufficient but still supports pure electric driving.

[0048] When the power of the power battery is lower than the preset second power threshold, and the discharge power of the power battery is lower than the preset second power threshold, the battery state of the power battery is determined to be the third battery state, that is, the power battery currently has a serious shortage of power and cannot support the vehicle to run purely on electricity.

[0049] Furthermore, the driving restriction conditions of the vehicle are determined according to the battery status of the power battery, and the vehicle is controlled to perform pure electric driving under the driving restriction conditions.

[0050] When the battery state of the power battery is the first battery state, no restriction is imposed on the vehicle's driving speed. When the battery state of the power battery is the second battery state, the vehicle's driving speed is limited to below the first speed threshold, and the vehicle is controlled to light up the slow speed light to alert surrounding vehicles and pedestrians. When the battery state of the power battery is the third battery state, the vehicle is restricted from driving.

[0051] In the embodiment of the present invention, the vehicle is controlled to travel purely on the basis of the power battery according to the battery status of the power battery, so as to avoid the power battery being over-discharged quickly, causing the vehicle to lose power and thus cause an accident. While ensuring the safe driving of the vehicle, the power battery is prevented from being over-discharged, thereby affecting the performance and life.

[0052] Corresponding to the above vehicle starting method, the present application embodiment also provides a vehicle starting device. Figure 3, is a structural diagram of a vehicle starting device provided in an embodiment of the present application. The vehicle starting device may include: a first determination module 301, a second determination module 302, and a heating starting module 303.

[0053] The first determination module 301 obtains the status information of the vehicle, and determines whether the vehicle needs to trigger the execution of fuel heating according to the status information.

[0054] The second determining module 302 determines a heating control method according to the state information when it is determined that fuel heating needs to be triggered and the vehicle needs to start the engine.

[0055] The heating and starting module 303 heats the fuel according to the heating control method and starts the vehicle.

[0056] Figure 4 FIG. 1 is a schematic diagram of the structure of an electronic device according to an embodiment of the present specification. Figure 4 As shown, the electronic device may include at least one processor; and at least one memory communicatively connected to the processing unit, wherein: the memory stores program instructions that can be executed by the processing unit, and the processor calls the program instructions to execute the vehicle starting method provided in this embodiment.

[0057] The electronic device can be a device capable of intelligently communicating with a user, such as a cloud server, and the specific form of the electronic device is not limited in the embodiments of this specification. It can be understood that the electronic device here is the machine mentioned in the method embodiment.

[0058] Figure 4 A block diagram of an exemplary electronic device suitable for implementing the embodiments of the present description is shown. Figure 4 The electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of this specification.

[0059] like Figure 4 As shown, the electronic device is in the form of a general computing device. The components of the electronic device may include but are not limited to: one or more processors 410, a communication interface 420, a memory 430, and a communication bus 440 connecting different system components (including the memory 430, the communication interface 420 and the processor 410).

[0060] The communication bus 440 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor or a local bus using any of a variety of bus structures. For example, these architectures include but are not limited to Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MAC) bus, Enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnection (PCI) bus.

[0061] Electronic devices typically include a variety of computer system readable media. These media can be any available media that can be accessed by the electronic device, including volatile and non-volatile media, removable and non-removable media.

[0062] The memory 430 may include a computer system readable medium in the form of a volatile memory, such as a random access memory (RAM) and / or a cache memory. The electronic device may further include other removable / non-removable, volatile / non-volatile computer system storage media. The memory 430 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of each embodiment of the present specification.

[0063] A program / utility having a set (at least one) of program modules may be stored in memory 430, such program modules including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment. The program modules generally perform the functions and / or methods of the embodiments described in this specification.

[0064] The processor 410 executes various functional applications and data processing by running the programs stored in the memory 430, such as implementing the vehicle starting method provided in the embodiment shown in this specification.

[0065] An embodiment of the present specification provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, wherein the computer instructions enable the computer to execute the vehicle starting method provided by the embodiment shown in the present specification.

[0066] The above-mentioned non-transitory computer-readable storage medium may adopt any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination thereof. More specific examples (non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (Read Only Memory; hereinafter referred to as: ROM), an erasable programmable read-only memory (Erasable Programmable Read Only Memory; hereinafter referred to as: EPROM) or flash memory, optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, device or device.

[0067] Computer-readable signal media may include a data signal propagated in baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0068] Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0069] Computer program code for performing the operations of this specification may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages, such as Java, Smalltalk, C++, and conventional procedural programming languages, such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may 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 may be connected to an external computer (e.g., using an Internet service provider to connect through the Internet).

[0070] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0071] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this specification, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0072] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of this specification includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of this specification belong.

[0073] The word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0074] It should be noted that the terminals involved in the embodiments of this specification may include but are not limited to personal computers (Personal Computer; hereinafter referred to as: PC), personal digital assistants (Personal Digital Assistant; hereinafter referred to as: PDA), wireless handheld devices, tablet computers (Tablet Computer), mobile phones, MP3 players, MP4 players, etc.

[0075] In the embodiments provided in this specification, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0076] In addition, each functional unit in each embodiment of this specification may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0077] The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium, and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute some steps of the method described in each embodiment of this specification.

[0078] The above description is only a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this specification should be included in the scope of protection of this specification.

Claims

1. A vehicle starting method, characterized in that: The method comprises: Acquiring vehicle status information, and determining whether the vehicle needs to trigger fuel heating according to the status information; When it is determined that fuel heating needs to be triggered and the vehicle needs to start the engine, determining a heating control method according to the state information; The fuel is heated according to the heating control method, and the vehicle is started.

2. The method according to claim 1, characterized in that: The state information includes the ambient temperature, the engine water temperature, the ethanol content of the fuel and the heater state. The determining whether the vehicle needs to trigger the fuel heating according to the state information includes: determining whether a start failure may occur when starting the engine according to the ambient temperature, the engine water temperature, the ethanol content percentage of the fuel, and the heater state; When it is determined that the engine may fail to start, determining that fuel heating needs to be triggered; Among them, when the ambient temperature is lower than a preset first temperature threshold, the engine water temperature is lower than a preset second temperature threshold, the ethanol content is higher than a preset ethanol content threshold, and the heater has no faults, it is determined that the engine may fail to start.

3. The method according to claim 1, characterized in that The state information includes engine water temperature and ethanol content of fuel, and the heating control method is determined according to the state information, including: determining a first heating time for heating the fuel according to the engine water temperature and the ethanol content; determining a fuel injection amount correction coefficient according to the first heating time, the engine water temperature and the ethanol content; Correcting the preset fuel injection amount according to the fuel injection amount correction coefficient to determine the target fuel injection amount; The heating control method is determined according to the first heating time and the target fuel injection amount.

4. The method according to claim 3, characterized in that: The method of heating the fuel and starting the vehicle according to the heating control method comprises: sending a heating instruction and the first heating time to a heater through a first communication bus, so as to control the heater to heat the fuel according to the first heating time; The start instruction and the target fuel injection amount are sent to the engine via the second communication bus to control the engine to start by injecting fuel and igniting according to the target fuel injection amount after the engine speed reaches a set value.

5. The method according to claim 1, characterized in that After starting the vehicle, the method further includes: Determining whether the engine is started successfully; When the engine is started successfully, the engine is controlled to provide power output and to perform hybrid driving with the power battery; When the engine fails to start, the number of engine starts is counted and the engine is restarted; If the number of engine starts reaches the preset threshold, the start failure fault code is recorded and the vehicle is controlled to run purely on electric power.

6. The method according to claim 1, characterized in that The method further comprises: When it is determined that the vehicle needs to travel by means of a power battery, determining a battery state of the power battery according to the power level and discharge power of the power battery; Determining a driving restriction condition of the vehicle according to the battery state of the power battery, and controlling the vehicle to perform pure electric driving under the driving restriction condition; Among them, when there is no need to start the engine, or the fuel heating is not completed before starting the engine, or the number of engine start failures reaches a preset threshold, it is determined that the vehicle needs to be driven purely by the power battery.

7. The method according to claim 6, characterized in that The determining the battery state of the power battery according to the power level and the discharge power of the power battery includes: When the power level of the power battery is higher than a preset first power threshold, and the discharge power of the power battery is higher than a preset first power threshold, determining that the battery state of the power battery is a first battery state; When the power level of the power battery is lower than a preset first power threshold but higher than a preset second power threshold, and the discharge power of the power battery is lower than a preset first power threshold but higher than a preset second power threshold, determining that the battery state of the power battery is the second battery state; When the power level of the power battery is lower than a preset second power threshold, and the discharge power of the power battery is lower than a preset second power threshold, determining that the battery state of the power battery is a third battery state; Determining a driving restriction condition of the vehicle according to the battery state of the power battery includes: When the battery state of the power battery is the first battery state, no speed limit is imposed on the vehicle; When the battery state of the power battery is the second battery state, limiting the vehicle running speed to below the first speed threshold, and controlling the vehicle to light up a turtle speed indicator; When the battery state of the power battery is the third battery state, the vehicle is restricted from traveling.

8. A vehicle starting device, characterized in that: The device comprises: A first determination module, which obtains status information of the vehicle and determines whether the vehicle needs to trigger fuel heating according to the status information; a second determining module, determining a heating control method according to the state information when it is determined that fuel heating needs to be triggered and the vehicle needs to start the engine; The heating and starting module heats the fuel according to the heating control method and starts the vehicle.

9. An electronic device, characterized in that: include: at least one processor; as well as at least one memory in communication with the processor, wherein: The memory stores program instructions executable by the processor, and the processor can execute the method according to any one of claims 1 to 7 by calling the program instructions.

10. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is executed, the device where the storage medium is located is controlled to execute the method according to any one of claims 1 to 7.

Images