Vehicle control method, apparatus, device, medium, and product

Abstract

The application provides a vehicle control method, device, equipment, medium and product, and relates to the technical field of vehicles. The method comprises the following steps: identifying a current concentration ratio of target fuel in fuel pumped out of a fuel tank; determining a target air-fuel ratio according to the current concentration ratio; the target air-fuel ratio is an air-fuel ratio meeting complete combustion of fuel; determining a first fuel injection amount of an oil rail fuel injector according to the target air-fuel ratio and current values of a parameter group; the parameter group at least comprises an intake pressure of an engine, an intake temperature of the engine and an engine speed; and controlling the oil rail fuel injector to work according to the first fuel injection amount, spraying fuel into the engine through the oil rail fuel injector, and controlling the engine to ignite and operate. Through the above method, the fuel injection amount required by the oil rail fuel injector corresponding to the current concentration ratio is determined under different fuel concentration ratios, the oil rail fuel injector is controlled to work according to the required fuel injection amount, and then vehicle starting is realized, so that vehicle fast starting under different fuel concentration ratios can be realized.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more specifically to a vehicle control method, device, equipment, medium, and product. Background Technology

[0002] To address the challenge of starting in cold weather, existing hybrid vehicles employ dual fuel supply systems. An auxiliary fuel system is used for cold starts. Once the coolant temperature reaches a preset level, the fuel supply system is switched. This dual-fuel system requires gradual switching between different fuels during vehicle startup, resulting in a slower starting process. Summary of the Invention

[0003] The purpose of this application is to provide a vehicle control method, device, equipment, medium, and product that enables vehicles to start quickly under different fuel ratios.

[0004] In a first aspect, embodiments of this application provide a vehicle control method. The vehicle includes a fuel tank, a fuel rail injector, and an engine. The fuel tank can be filled with at least one type of fuel, and the fuel rail injector is used to inject fuel into the engine. The control method includes:

[0005] Identify the current concentration ratio of the target fuel in the fuel pumped out of the fuel tank, where the target fuel is any one of at least one fuel.

[0006] The target air-fuel ratio is determined based on the current concentration ratio; the target air-fuel ratio is the air-fuel ratio that ensures complete combustion of fuel.

[0007] The first injection quantity of the fuel rail injector is determined based on the target air-fuel ratio and the current values ​​of the parameter set; the parameter set includes at least the engine intake pressure, engine intake temperature, and engine speed.

[0008] The fuel rail injector is controlled according to the first injection quantity, and fuel is injected into the engine through the fuel rail injector to control the engine ignition and operation.

[0009] In some implementations, identifying the current concentration of the target fuel in the fuel pumped from the fuel tank includes:

[0010] Obtain the dielectric constant and conductivity of the target fuel;

[0011] Substituting the dielectric constant into the first equation and the conductivity into the second equation, we obtain a set of equations. The first equation characterizes the relationship between the dielectric constant and concentration of the target fuel, and the second equation characterizes the relationship between the conductivity and concentration of the target fuel.

[0012] Solve the system of equations to obtain the current concentration ratio of the target fuel.

[0013] In some implementations, the target air-fuel ratio is determined based on the current concentration ratio, including:

[0014] Determine the mass of fuel based on the current concentration ratio;

[0015] To obtain the mass of air required for complete combustion of fuel;

[0016] The ratio of air mass to fuel mass is defined as the target air-fuel ratio.

[0017] In some implementations, determining the first injection quantity of the fuel rail injector based on the target air-fuel ratio and the current value of the parameter set includes:

[0018] The engine's intake air volume is determined based on the current values ​​of the parameter set;

[0019] The ratio of the intake air volume to the target air-fuel ratio is determined as the first fuel injection quantity.

[0020] In some embodiments, after controlling the operation of the fuel rail injector according to the first injection quantity, injecting fuel into the engine through the fuel rail injector, and controlling the engine ignition and operation, the vehicle control method further includes:

[0021] Obtain the engine's output torque;

[0022] The second injection quantity is determined based on the output torque and the target torque corresponding to the current concentration ratio, and the operation of the fuel rail injector is controlled based on the second injection quantity.

[0023] In some implementations, before determining the second injection quantity based on the output torque and the target torque corresponding to the current concentration ratio, the vehicle control method further includes:

[0024] Obtain the relationship between the preset concentration ratio of the target fuel, the parameter set, and the engine torque;

[0025] Based on the current concentration ratio, the current values ​​of the parameter group, and their corresponding relationships, determine the target torque corresponding to the current concentration ratio.

[0026] Secondly, embodiments of this application provide a vehicle control device. The vehicle includes a fuel tank, which can be filled with at least one type of fuel. The vehicle control device includes:

[0027] The identification module is used to identify the current concentration ratio of the target fuel in the fuel pumped out of the fuel tank, wherein the target fuel is any one of the at least one fuels;

[0028] The first determining module is used to determine the target air-fuel ratio based on the current concentration ratio; the target air-fuel ratio is the air-fuel ratio that satisfies the complete combustion of fuel.

[0029] The second determining module is used to determine the first injection quantity of the fuel rail injector based on the target air-fuel ratio and the current value of the parameter set; the parameter set includes at least the engine intake pressure, the engine intake temperature, and the engine speed.

[0030] The control module is used to control the operation of the fuel rail injector according to the first injection quantity, so as to inject fuel into the engine through the fuel rail injector and control the engine ignition and operation.

[0031] Thirdly, embodiments of this application provide a vehicle, including:

[0032] The memory is configured to store instructions; and

[0033] The processor is configured to retrieve the instructions from the memory and, when executing the instructions, to implement the vehicle control method provided in the first aspect of the embodiments of this application.

[0034] Fourthly, embodiments of this application provide a machine-readable storage medium storing instructions that cause a machine to execute the vehicle control method described above.

[0035] Fifthly, embodiments of this application provide a computer program product in which instructions, when executed by a vehicle's processor, cause the vehicle to perform the vehicle control method described above.

[0036] In this embodiment, the current concentration ratio of a target fuel in the fuel pumped from the fuel tank is identified, where the target fuel is any one of at least one fuel. A target air-fuel ratio is determined based on the current concentration ratio; the target air-fuel ratio is the air-fuel ratio required for complete combustion. A first injection quantity for the fuel rail injector is determined based on the target air-fuel ratio and the current values ​​of a parameter set; the parameter set includes at least the engine's intake air pressure, engine intake air temperature, and engine speed. The fuel rail injector is controlled to operate according to the first injection quantity, injecting fuel into the engine and controlling engine ignition. Thus, by employing a single fuel supply system, the required injection quantity for the fuel rail injector corresponding to different fuel concentration ratios is determined, and the fuel rail injector is controlled to operate according to the required injection quantity, thereby enabling vehicle starting. This allows for rapid vehicle starting under different fuel concentration ratios. Attached Figure Description

[0037] Figure 1 This is one of the flowcharts illustrating the vehicle control method provided in the embodiments of this application;

[0038] Figure 2 This is a schematic diagram of the arbitrary ratio fuel supply and concentration signal transmission path provided in the embodiments of this application;

[0039] Figure 3 This is a second schematic flowchart of the vehicle control method provided in the embodiments of this application;

[0040] Figure 4 This is the third schematic flowchart of the vehicle control method provided in the embodiments of this application;

[0041] Figure 5 This is a schematic diagram of the vehicle control device provided in the embodiments of this application;

[0042] Figure 6 This is a schematic diagram of the vehicle structure provided in the embodiments of this application. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0044] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0045] The vehicle control method, device, equipment, medium, and product provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0046] Please see Figure 1 This is one of the flowcharts illustrating a vehicle control method provided in this application. The method is applied to a vehicle, which includes a fuel tank, a fuel rail injector, and an engine. The fuel tank can be filled with at least one type of fuel, and the fuel rail injector is used to inject fuel into the engine. Figure 1 As shown, the vehicle control method includes the following steps S100 to S400.

[0047] Step S100: Identify the current concentration ratio of the target fuel in the fuel pumped out of the fuel tank, wherein the target fuel is any one of at least one fuels.

[0048] In the embodiments of this application, the target fuel can be understood as any type of fuel pumped from the fuel tank. The fuel pumped from the fuel tank can be a single fuel or a mixture of multiple fuels. In one example, the target fuel can be methanol fuel. In another example, the target fuel can also be a mixture of methanol fuel and gasoline fuel.

[0049] In this embodiment, the current concentration ratio of a target fuel can be identified using a fuel identification device. In one example, the fuel identification device can be a flexible fuel sensor. A flexible fuel sensor is a device capable of detecting and monitoring fuel characteristics, such as fuel concentration, temperature, and pressure.

[0050] In this embodiment, the fuel concentration identification device can be arranged between the fuel tank and the fuel rail injector to facilitate the identification of the concentration of methanol or gasoline in the fuel pumped from the fuel tank. Preferably, the fuel concentration identification device can be arranged close to the fuel rail injector side to facilitate the concentration signal identified by the device.

[0051] Step S200: Determine the target air-fuel ratio based on the current concentration ratio; the target air-fuel ratio is the air-fuel ratio that satisfies the requirement of complete combustion of fuel.

[0052] In this embodiment, the air-fuel ratio represents the mass ratio of air to fuel entering the engine. The target air-fuel ratio can be understood as the air-fuel ratio required to ensure complete combustion of fuel pumped from the fuel tank.

[0053] In this embodiment, for a complete combustion reaction, the required air quantity can be calculated using a chemical equation. Based on the fuel's molecular formula, the number of moles of oxygen required per mole of fuel is calculated, and then multiplied by the mole fraction of oxygen in the air (approximately 21%) to obtain the number of moles of air. Using the molar masses of air and fuel, the molar ratio is converted to a mass ratio, thereby determining the target air-fuel ratio.

[0054] In this embodiment, a mixture of methanol and gasoline fuel pumped from the fuel tank is used as an example. After determining the current fuel concentration ratio, the mass of each fuel component can be determined based on the fuel concentration ratio and the total fuel mass. Then, the mass of air required for complete combustion of each fuel is determined separately. Finally, the ratio of air mass to fuel mass is determined as the target air-fuel ratio.

[0055] Step S300: Determine the first injection quantity of the fuel rail injector based on the target air-fuel ratio and the current value of the parameter set; the parameter set includes at least the engine intake pressure, engine intake temperature and engine speed.

[0056] In this embodiment, the target air-fuel ratio can be understood as the air-fuel ratio required for the complete combustion of fuel pumped from the fuel tank. The injection quantity can be understood as the amount of fuel injected by the fuel rail injector per unit time. Before determining the first injection quantity of the fuel rail injector, the current values ​​of the engine's parameter set are first obtained. The parameter set may include, but is not limited to, engine intake pressure, engine intake temperature, engine displacement, and engine speed. The engine intake quantity can be determined based on the engine displacement, engine speed, and intake temperature. The engine intake quantity can be understood as the volume of air entering the engine cylinder within a specific time period.

[0057] In this embodiment of the application, determining the first injection quantity of the fuel rail injector based on the target air-fuel ratio and the current value of the parameter set can be understood as the theoretical value of the injection quantity of the fuel rail injector under the current value of the parameter set and the target air-fuel ratio.

[0058] In this embodiment, the engine's intake air volume is first determined based on the current values ​​of the engine's parameter set. Then, the ratio of the intake air volume to the target air-fuel ratio is determined as the first injection quantity.

[0059] Step S400: Control the operation of the fuel rail injector according to the first injection quantity, inject fuel into the engine through the fuel rail injector, and control the engine to ignite and run.

[0060] In this embodiment, after determining the first injection quantity of the fuel rail injector, the parameters of the fuel rail injector can be set according to the first injection quantity, so that the actual injection quantity of the fuel rail injector matches the injection quantity determined in step S300. When the fuel rail injector receives the working signal, it injects fuel into the cylinder of the engine based on the injection quantity, and the engine ignites and runs.

[0061] Through steps S100-S400, the current concentration ratio of the target fuel in the fuel pumped from the fuel tank is identified. The target fuel is any one of at least one fuel. A target air-fuel ratio is determined based on the current concentration ratio. The target air-fuel ratio is the air-fuel ratio required for complete combustion. The first injection quantity of the fuel rail injector is determined based on the target air-fuel ratio and the current values ​​of the parameter set. The parameter set includes at least the engine intake pressure, engine intake temperature, and engine speed. The fuel rail injector is controlled to operate according to the first injection quantity, injecting fuel into the engine and controlling engine ignition. Thus, by determining the required first injection quantity of the fuel rail injector corresponding to different fuel concentration ratios and controlling the fuel rail injector to operate according to the required first injection quantity, vehicle starting can be achieved, enabling rapid vehicle starting under different fuel concentration ratios.

[0062] In some implementations, identifying the current concentration of the target fuel in the fuel pumped from the fuel tank includes:

[0063] Obtain the dielectric constant and conductivity of the target fuel;

[0064] Substituting the dielectric constant into the first equation and the conductivity into the second equation, we obtain a set of equations. The first equation characterizes the relationship between the dielectric constant and concentration of the target fuel, and the second equation characterizes the relationship between the conductivity and concentration of the target fuel.

[0065] Solve the system of equations to obtain the current concentration ratio of the target fuel.

[0066] Specifically, a fuel identification device can be used to identify the current concentration ratio of a target fuel. In one example, the fuel identification device could be a flexible fuel sensor. A flexible fuel sensor is a device capable of detecting and monitoring fuel characteristics such as fuel concentration, temperature, and pressure.

[0067] In this embodiment, dielectric constant is a physical quantity describing the electrical properties of a material, reflecting its ability to store electrical energy in an electric field. Conductivity is a physical quantity measuring the conductivity of a material. The first equation characterizes the relationship between the dielectric constant and concentration of the target fuel, and the second equation characterizes the relationship between the conductivity and concentration of the target fuel.

[0068] In the embodiments of this application, the dielectric constant can be obtained directly by a dielectric constant measuring device, or it can be obtained by measuring the capacitance of a capacitor containing the mixed fuel and calculating the dielectric constant based on the capacitance. This application does not limit the method for obtaining the dielectric constant.

[0069] In this embodiment, it is assumed that the fuel pumped from the fuel tank is a mixed fuel, and the conductivity of the mixed fuel is a weighted average of the conductivity of its components, and the dielectric constant is a weighted average of the dielectric constants of its components. Substituting the dielectric constant into the first equation and the conductivity into the second equation yields the relationship between the conductivity and concentration of the target fuel, as well as the relationship between the dielectric constant and concentration of the target fuel. Solving the system of equations then yields the concentration of each type of fuel.

[0070] In this embodiment, the accuracy of determining the current concentration ratio of the target fuel can be improved by determining the current concentration ratio based on the correspondence between the dielectric constant and conductivity of the target fuel and the concentration.

[0071] In some implementations, the target air-fuel ratio is determined based on the current concentration ratio, including:

[0072] Determine the mass of fuel based on the current concentration ratio;

[0073] To obtain the mass of air required for complete combustion of fuel;

[0074] The ratio of air mass to fuel mass is defined as the target air-fuel ratio.

[0075] Specifically, the air-fuel ratio represents the mass ratio of air to fuel entering the engine. The target air-fuel ratio can be understood as the air-fuel ratio required to ensure the complete combustion of fuel pumped from the fuel tank.

[0076] In this embodiment, a mixture of methanol and gasoline fuel pumped from the fuel tank is used as an example. After determining the current fuel concentration ratio, the mass of each fuel in the fuel mixture can be determined based on the fuel concentration ratio and the total fuel mass. Then, the mass of air required for complete combustion of each fuel is determined separately. Finally, the ratio of air mass to fuel mass is determined as the target air-fuel ratio.

[0077] In this embodiment, after calculating the target air-fuel ratio, it can be corrected based on parameters such as fuel calorific value and atmospheric pressure. Fuel calorific value can be understood as the heat released when a unit mass or unit volume of fuel is completely burned. The overall calorific value of the mixed fuel can be calculated based on the calorific value and mass fraction of each fuel in the mixture. The ratio of the calorific value of the mixed fuel to the calorific value of air is the air-fuel ratio.

[0078] In the embodiments of this application, atmospheric pressure generally does not directly affect the calculation of the air-fuel ratio, but it does affect the air density. During calculation, the air density can be calculated in conjunction with atmospheric pressure to obtain the air mass.

[0079] In this embodiment, by determining the target air-fuel ratio of the engine based on the detected current concentration ratio, the target air-fuel ratio can be updated based on the real-time detected data, thereby improving the accuracy of the calculation.

[0080] In some implementations, determining the first injection quantity of the fuel rail injector based on the target air-fuel ratio and the current value of the parameter set includes:

[0081] The engine's intake air volume is determined based on the current values ​​of the parameter set;

[0082] The ratio of the intake air volume to the target air-fuel ratio is determined as the first fuel injection quantity.

[0083] Specifically, fuel injection quantity can be understood as the amount of fuel injected by the fuel rail injector per unit time. Before determining the initial fuel injection quantity of the fuel rail injector, the current values ​​of the engine's parameter set are first obtained. The parameter set may include, but is not limited to, engine intake pressure, engine intake temperature, engine displacement, and engine speed. Based on the engine displacement, engine speed, and intake temperature, the engine's intake air volume can be determined. The engine's intake air volume can be understood as the mass of air entering the engine cylinders within a specific time period.

[0084] In one example, the engine's intake volume can be calculated first, and then the air mass can be determined based on the intake volume and air density. The engine's intake volume can satisfy:

[0085]

[0086] Where Q represents the engine's intake volume, P represents the engine's intake manifold pressure, and V... d N represents engine displacement, R represents engine speed, and T represents gas constant.

[0087] In this embodiment, the intake volume is determined based on the current value of the collected parameter set, and the first injection volume of the fuel rail injector is determined through step-by-step calculation. The calculation can be performed based on real-time collected data, making the calculation results more accurate and flexible.

[0088] In some embodiments, after controlling the operation of the fuel rail injector according to the first injection quantity, injecting fuel into the engine through the fuel rail injector, and controlling the engine ignition and operation, the vehicle control method further includes:

[0089] Obtain the engine's output torque;

[0090] The second injection quantity is determined based on the output torque and the target torque corresponding to the current concentration ratio, and the operation of the fuel rail injector is controlled based on the second injection quantity.

[0091] Specifically, the process of fuel injection into the engine via the fuel rail injector and engine ignition can be understood as follows: After the engine control unit receives the ignition signal, the fuel rail injector begins to inject fuel in a mist form into the cylinder or intake manifold, where it mixes with air. During the engine's intake stroke, the valves open, and outside air is drawn into the cylinder. The injected fuel mixes with the intake air to form a combustible mixture. The piston moves upward within the cylinder, compressing the mixture and increasing its temperature and pressure. At the end of the compression stroke, the ignition coil releases a high-voltage current, and the spark plug ignites the compressed mixture. The fuel-air mixture burns rapidly, producing high-temperature, high-pressure gas that pushes the piston downward, generating power.

[0092] In this embodiment, the engine's output torque can be understood as the rotational force generated by the engine during operation. After obtaining the engine's output torque, it is compared with the target torque corresponding to the current concentration ratio. If the difference between the output torque and the target torque is not within a preset range, the fuel injection quantity of the fuel rail injector is adjusted to obtain a second fuel injection quantity. The engine ignition is then controlled according to the second fuel injection quantity. This process of detection and judgment is repeated until the difference between the output torque and the target torque is within a preset range. The preset range can be understood as a pre-defined allowable range for the difference between the output torque and the target torque.

[0093] In this embodiment, by adjusting the fuel injection quantity of the fuel rail injector according to the engine's output torque after the engine is ignited, the accuracy of engine ignition can be improved.

[0094] In some implementations, before determining the second injection quantity based on the output torque and the target torque corresponding to the current concentration ratio, the vehicle control method further includes:

[0095] Obtain the relationship between the preset concentration ratio of the target fuel, the parameter set, and the engine torque;

[0096] Based on the current concentration ratio, the current values ​​of the parameter group, and the corresponding relationships, determine the target torque corresponding to the current concentration ratio.

[0097] Specifically, before determining the second injection quantity based on the output torque and the target torque corresponding to the current concentration ratio, it is necessary to first determine the preset concentration ratio of the target fuel, the correspondence between the parameter set and the engine torque, and the parameter set. The parameter set includes at least the engine intake pressure, engine intake temperature, and engine speed. In one example, based on historical data, the engine torque corresponding to each concentration ratio and each value of the parameter set can be determined, thereby deriving the correspondence between the preset concentration ratio, the parameter set, and the engine torque. In another example, the model can combine the current engine speed and throttle opening under the current concentration ratio to determine the percentage of torque required at that speed, and then calculate the operating torque requirement, i.e., the target torque.

[0098] In this embodiment, by determining the target torque corresponding to the current concentration ratio based on the current concentration ratio, the current value of the parameter group, and the correspondence with the torque, the fuel injection quantity of the fuel rail injector can be corrected, thereby improving the engine operating efficiency.

[0099] Please see Figure 2 This is a schematic diagram of the arbitrary ratio fuel supply and concentration signal transmission path provided in the embodiments of this application. For example... Figure 2As shown, the vehicle in this embodiment includes a fuel tank, a fuel concentration identification device, an engine, and an Electronic Control Unit (ECU). When fuel is pumped out of the fuel tank, the fuel concentration identification device detects the fuel concentration ratio and sends a concentration ratio signal to the ECU. After receiving the concentration ratio signal, the ECU determines the control software corresponding to the current concentration ratio and uses the corresponding control software to control the engine operation. The control software can determine a target air-fuel ratio based on the current concentration ratio, determine the second injection quantity of the fuel rail injector based on the target air-fuel ratio and the current value of the parameter set, and finally control the fuel rail injector to operate based on the second injection quantity, injecting fuel into the engine and controlling engine ignition and operation.

[0100] Please see Figure 3 This is a second schematic flowchart of the vehicle control method provided in the embodiments of this application. Figure 3 As shown, the embodiments of this application include the following steps:

[0101] Step S301: When the fuel pump pumps fuel of any blend ratio from the fuel tank, the concentration ratio of methanol fuel or gasoline fuel in the blend is identified in real time by the fuel timing device.

[0102] Step S302: Determine the control software corresponding to the received methanol fuel or gasoline fuel concentration ratio signal in the mixed fuel.

[0103] Step S303: Using control software corresponding to the methanol or gasoline fuel concentration ratio, the engine can run smoothly; when the fuel ratio in the fuel tank changes, the engine control software will switch according to the received fuel concentration signal when the methanol or gasoline concentration detected by the fuel concentration identification device changes.

[0104] In this specific embodiment, the specific implementation can be found in the foregoing description, and will not be repeated here.

[0105] Please see Figure 4 This is the third flowchart illustrating the vehicle control method provided in the embodiments of this application. Figure 4As shown, the vehicle control method provided in this application takes methanol fuel in a mixed fuel as an example. It acquires the methanol concentration signal from a fuel concentration identification device and identifies the methanol fuel concentration ratio in the mixed fuel. During identification, it first determines whether the methanol ratio in the mixed fuel is 0%. If the methanol ratio is 0%, the control software corresponding to a 0% methanol ratio is activated. If the methanol ratio is not 0%, it determines whether the methanol ratio in the mixed fuel is 100%. If the methanol ratio is 100%, the control software corresponding to a 100% methanol ratio is activated. If the methanol ratio is not 100%, the methanol ratio in the mixed fuel is compared with a preset methanol concentration ratio. When the methanol ratio in the mixed fuel is close to the preset methanol concentration ratio, the control software corresponding to the preset methanol concentration ratio is activated. When the methanol ratio in the mixed fuel is not close to either the preset methanol concentration ratio, interpolation calculation is used, and the interpolated control software is activated.

[0106] The judgment steps provided in this application are for reference only, and the specific judgment order is not limited.

[0107] Please see Figure 5 This is a schematic diagram of the structure of a vehicle control device provided in an embodiment of this application. A second aspect of this application provides a vehicle control device 50, which includes:

[0108] The identification module 51 is used to identify the current concentration ratio of the target fuel in the fuel pumped out of the fuel tank, wherein the target fuel is any one of the at least one fuels;

[0109] The first determining module 52 is used to determine the target air-fuel ratio based on the current concentration ratio; the target air-fuel ratio is the air-fuel ratio that satisfies the complete combustion of fuel.

[0110] The second determining module 53 is used to determine the first injection quantity of the fuel rail injector based on the target air-fuel ratio and the current value of the parameter set; the parameter set includes at least the engine intake pressure, the engine intake temperature and the engine speed.

[0111] The control module 54 is used to control the operation of the fuel rail injector according to the first fuel injection quantity, inject fuel into the engine through the fuel rail injector, and control the engine ignition and operation.

[0112] The vehicle control device 50 provided in the second aspect of the present application can implement the various processes implemented in the above method embodiments and achieve the same beneficial effects. To avoid repetition, it will not be described again here.

[0113] Please see Figure 6This is a structural schematic diagram of a vehicle provided in an embodiment of this application. This embodiment of the application provides a vehicle 6000, including a processor 6100 and a memory 6200. The memory 6200 stores machine-executable instructions that can be executed by the processor 6100. The processor 6100 can execute the machine-executable instructions to implement the above-mentioned vehicle control method.

[0114] A fourth aspect of this application provides a machine-readable storage medium storing instructions that, when executed by a processor, cause the processor to implement the vehicle control method described above.

[0115] In some embodiments, this application also provides a computer program product, including a computer program that, when executed by a processor, implements the vehicle control method according to the above embodiments.

[0116] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0117] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 The computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1The functions specified in one or more boxes. These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable apparatus for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0118] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0119] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0120] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0121] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0122] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

[0123] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A vehicle control method characterized by, The vehicle comprises a fuel tank, an oil rail injector and an engine, the fuel tank is capable of being filled with at least one fuel, the oil rail injector is used to spray the fuel into the engine, and the control method comprises: identifying a current concentration ratio of a target fuel in fuel pumped out by the fuel tank, the target fuel being any one of the at least one fuel; determining a target air-fuel ratio according to the current concentration ratio; the target air-fuel ratio being an air-fuel ratio satisfying complete combustion of the fuel; determining a first injection amount of the oil rail injector according to the target air-fuel ratio and current values of a parameter group; the parameter group at least comprising intake pressure of the engine, intake temperature of the engine and engine speed; controlling the oil rail injector to work according to the first injection amount, spraying the fuel into the engine through the oil rail injector, and controlling the engine to operate in ignition mode; after the step of controlling the oil rail injector to work according to the first injection amount, spraying the fuel into the engine through the oil rail injector, and controlling the engine to operate in ignition mode, the vehicle control method further comprises: obtaining output torque of the engine; determining a second injection amount according to the output torque and a target torque corresponding to the current concentration ratio, and controlling the oil rail injector to work according to the second injection amount; wherein, in the case that a difference between the output torque and the target torque is not within a preset range, adjusting the injection amount of the oil rail injector to obtain the second injection amount.

2. The vehicle control method according to claim 1, characterized by, The step of identifying the current concentration ratio of the target fuel in the fuel pumped out by the fuel tank comprises: obtaining dielectric constant and conductivity of the target fuel; substituting the dielectric constant into a first equation and the conductivity into a second equation to obtain an equation group; the first equation representing a corresponding relationship between the dielectric constant and concentration of the target fuel, and the second equation representing a corresponding relationship between the conductivity and the concentration of the target fuel; solving the equation group to obtain the current concentration ratio of the target fuel.

3. The vehicle control method according to claim 1, characterized by, The step of determining the target air-fuel ratio according to the current concentration ratio comprises: determining mass of the fuel according to the current concentration ratio; obtaining mass of air required for complete combustion of the fuel; determining the target air-fuel ratio as a ratio of the mass of the air to the mass of the fuel.

4. The vehicle control method according to claim 1, characterized by The step of determining the first injection amount of the oil rail injector according to the target air-fuel ratio and current values of the parameter group comprises: determining intake amount of the engine according to the current values of the parameter group; determining the first injection amount as a ratio of the intake amount to the target air-fuel ratio.

5. The vehicle control method according to claim 1, characterized by Before the step of determining the second injection amount according to the output torque and a target torque corresponding to the current concentration ratio, the vehicle control method further comprises: obtaining a corresponding relationship between a preset concentration ratio of the target fuel, the parameter group and torque of the engine; determining the target torque corresponding to the current concentration ratio according to the current concentration ratio, current values of the parameter group and the corresponding relationship.

6. A vehicle control device characterized by comprising: The vehicle comprises a fuel tank, an oil rail injector and an engine, the fuel tank is capable of being filled with at least one fuel, the oil rail injector is used to spray the fuel into the engine, and the vehicle control device comprises: an identification module, configured to identify a current concentration ratio of a target fuel in fuel pumped out by the fuel tank, the target fuel being any one of the at least one fuel; a first determination module, configured to determine a target air-fuel ratio according to the current concentration ratio; the target air-fuel ratio being an air-fuel ratio meeting complete combustion of the fuel; a second determination module, configured to determine a first injection amount of the oil rail injector according to the target air-fuel ratio and current values of a parameter group; the parameter group at least comprising intake pressure of the engine, intake temperature of the engine and engine speed; a control module, configured to control the oil rail injector to work according to the first injection amount, to spray the fuel into the engine through the oil rail injector, and to control the engine to be ignited and operated; after the control of the oil rail injector to work according to the first injection amount, spraying the fuel into the engine through the oil rail injector, and controlling the engine to be ignited and operated, the method further comprises: acquiring an output torque of the engine; determining a second injection amount according to the output torque and a target torque corresponding to the current concentration ratio, and controlling the oil rail injector to work according to the second injection amount; wherein, in a case that a difference between the output torque and the target torque is not within a preset range, the injection amount of the oil rail injector is adjusted to obtain the second injection amount.

7. A vehicle characterized by comprising: comprise: a memory configured to store instructions; and a processor configured to call the instructions from the memory and capable of realizing the vehicle control method according to any one of claims 1 to 5 when the instructions are executed.

8. A machine-readable storage medium, characterized in that, The machine readable storage medium stores instructions for causing a machine to perform the vehicle control method according to any one of claims 1 to 5.

9. A computer program product, characterised in that, The instructions in the computer program product are executed by a processor of a vehicle, so that the vehicle performs the vehicle control method according to any one of claims 1 to 5.

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