Range extender plateau compensation method and device and electronic equipment

Abstract

According to the range extender plateau compensation method and device and the electronic equipment provided by the embodiment of the invention, the target vehicle performance MAP table corresponding to the plateau environment is obtained in response to the situation that the vehicle runs in the plateau environment, and the target MAP table is obtained by testing and correcting the compensation rotating speed in the plateau simulation environment; any rotating speed value in the target MAP table has the same rotating speed value in the basic MAP table; determining the target output power of the range extender based on the power demand of each module of the vehicle; determining a target torque and a target rotating speed related to the target output power based on the target MAP table; and controlling the vehicle to run based on the target output power, the target torque and the target rotating speed. After the compensation rotating speed is calculated through the power and the torque, the compensation rotating speed is corrected based on the original basic MAP table, so that the obtained target rotating speed is limited as the calibrated rotating speed in the basic MAP table, the situation that the performance of the range extender is reduced due to random fluctuation of the target rotating speed is avoided, and the stability and economical efficiency of the vehicle are improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle control, and in particular to a range extender plateau compensation method, device and electronic equipment. Background Art

[0002] Plateau environments (high altitude, thin oxygen, and low air pressure) can lead to decreased engine power, increased fuel consumption, worsening emissions, and even difficulty starting. Therefore, the engine requires plateau compensation technology to optimize performance. Although the electric motor of an extended-range vehicle is not affected, the range extender (fuel engine) will still face the problem of power reduction in the oxygen-deficient environment of the plateau. The current mainstream plateau compensation method for extended-range vehicles is to directly use the torque formula to convert the speed based on the power demand of the entire vehicle and the output capacity of the engine. Since the output capacity of the engine in the plateau varies greatly, the converted speed also varies greatly, and there is randomness in the power generation point, resulting in poor vehicle performance NVH and economy. Summary of the Invention

[0003] In view of this, the present application provides a range extender plateau compensation method, device and electronic equipment to help solve the problem in the prior art that the speed after compensation is highly random, affecting vehicle performance and economy.

[0004] In a first aspect, an embodiment of the present application provides a range extender plateau compensation method, comprising:

[0005] In response to the vehicle traveling in a plateau environment, a target vehicle performance map corresponding to the plateau environment is obtained, wherein the target MAP is obtained by testing and correcting a compensation speed in a plateau simulation environment, and any speed value in the target MAP has the same speed value in a base MAP;

[0006] Determine the target output power of the range extender based on the power requirements of each module of the vehicle;

[0007] determining a target torque and a target speed related to the target output power based on the target MAP table;

[0008] The vehicle is controlled to travel based on the target output power, the target torque, and the target speed.

[0009] In an optional embodiment, the process of testing the target MAP table in a plateau simulation environment includes:

[0010] In a plateau simulation environment, the target output power and target torque of the range extender under various test conditions are obtained;

[0011] determining a compensation speed based on the target output power and the target torque;

[0012] The compensation speed is corrected based on the calibrated speed in the basic MAP table to obtain a corresponding target speed.

[0013] In an optional embodiment, the correcting the compensation speed based on the calibrated speed in the basic MAP table to obtain the corresponding target speed includes:

[0014] determining a calibrated speed in the basic MAP table that is less than or equal to the compensation speed as an optional speed;

[0015] The maximum value among the selectable rotation speeds is determined as the target rotation speed.

[0016] In an optional embodiment, the basic MAP table is a set of mapping relationships between the calibrated output power, calibrated torque, and calibrated speed of the range extender under normal altitude conditions.

[0017] In an optional embodiment, obtaining the target output power and target torque of the range extender under multiple test conditions includes:

[0018] Obtain the atmospheric pressure and target output power under the current test conditions;

[0019] The target torque corresponding to the current atmospheric pressure is determined based on a pre-calibrated plateau torque characteristic curve.

[0020] In an optional embodiment, determining the target output power of the range extender based on the power requirements of each module of the vehicle includes:

[0021] Obtaining the vehicle's drive motor power requirements, battery charging power requirements, and / or vehicle accessory power requirements;

[0022] Determining a total power requirement based on the drive motor power requirement, the battery charging power requirement, and / or the vehicle accessories power requirement;

[0023] The target output power is determined based on the total power demand and the power generation efficiency of the range extender.

[0024] In an optional embodiment, in response to the vehicle traveling in a plateau environment, obtaining a target vehicle performance MAP table corresponding to the plateau environment includes:

[0025] Get the vehicle's altitude in real time;

[0026] When the altitude exceeds a first threshold, a plateau compensation mode is triggered and the operation of obtaining the target MAP table is performed.

[0027] In an optional embodiment, in response to the vehicle traveling in a plateau environment, obtaining a target vehicle performance MAP table corresponding to the plateau environment includes:

[0028] In response to the vehicle traveling in a plateau environment, obtaining actual output power of the range extender;

[0029] If the deviation between the actual output power and the target output power exceeds a second threshold, a plateau compensation mode is triggered and the operation of obtaining the target MAP table is performed.

[0030] In a second aspect, an embodiment of the present application provides a range extender plateau compensation device, comprising:

[0031] an acquisition module, configured to acquire, in response to the vehicle traveling in a plateau environment, a target vehicle performance MAP table corresponding to the plateau environment, wherein the target MAP table is obtained by testing and correcting a compensation speed in a plateau simulation environment, and any speed value in the target MAP table has the same speed value in a basic MAP table;

[0032] a correction module, configured to correct the compensation speed based on a basic MAP table;

[0033] a determination module, configured to determine a target output power of the range extender based on power requirements of various modules of the vehicle;

[0034] The determining module is further configured to determine a target torque and a target speed associated with the target output power based on the target MAP table;

[0035] A control module is used to control the vehicle driving based on the target output power, the target torque and the target speed.

[0036] In a third aspect, an embodiment of the present application provides an electronic device comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein, when the computer program instructions are executed by the processor, the electronic device is triggered to execute any of the methods described in the first aspect above.

[0037] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored program, wherein when the program is running, the device where the computer-readable storage medium is located is controlled to execute any method described in the first aspect.

[0038] In a fifth aspect, an embodiment of the present application provides a computer program product, which includes executable instructions. When the executable instructions are executed on a computer, the computer executes any one of the methods described in the first aspect.

[0039] Using the solution provided in the embodiments of the present application, in response to a vehicle traveling in a plateau environment, a target vehicle performance MAP table corresponding to the plateau environment is obtained. The target MAP table is obtained by testing and correcting the compensation speed in a plateau simulation environment, and any speed value in the target MAP table has the same speed value in the basic MAP table. The target output power of the range extender is determined based on the power requirements of each module of the vehicle. The target torque and target speed related to the target output power are determined based on the target MAP table. The vehicle is controlled based on the target output power, target torque, and target speed. After the compensation speed is calculated using power and torque, the compensation speed is corrected based on the original basic MAP table so that the obtained target speeds are all limited to the calibrated speeds in the basic MAP table. This avoids degradation of the range extender's performance due to random fluctuations in the target speed, thereby improving the stability and economy of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. 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 any creative work.

[0041] Figure 1 A flow chart of a range extender plateau compensation method provided in an embodiment of the present application;

[0042] Figure 2 A schematic flow chart of another range extender plateau compensation method provided in an embodiment of the present application;

[0043] Figure 3 This is an example schematic diagram of a range extender plateau compensation method provided in an embodiment of the present application;

[0044] Figure 4 This is an example schematic diagram of another range extender plateau compensation method provided in an embodiment of the present application;

[0045] Figure 5 A schematic structural diagram of a range extender plateau compensation device provided in an embodiment of the present application;

[0046] Figure 6 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0047] 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.

[0048] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0049] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0050] It should be understood that the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the associated objects.

[0051] In plateau environments, the reduced atmospheric pressure reduces the intake air volume of naturally aspirated engines, resulting in a drop in output torque. Traditional plateau compensation methods typically use a direct increase in engine speed to compensate for torque loss, but this approach presents significant technical issues, severely impacting the vehicle's noise, vibration, harshness (NVH), economy, and power. This is primarily reflected in the following aspects:

[0052] (1) Speed randomness leads to NVH deterioration

[0053] Torque output at high altitudes is significantly affected by air pressure fluctuations. The resulting speed variation after compensation is wide and unpredictable, causing the engine operating point to deviate from the calibrated speed in the base MAP table, leading to noticeable vibration and noise. Random fluctuations in the power generation point cause the engine to frequently enter non-optimal speed ranges, exacerbating mechanical shock and affecting ride comfort.

[0054] (2) Decline in economic efficiency

[0055] Because the compensation speed doesn't strictly match the efficient power generation range, fuel consumption increases, especially under partial load conditions, where fuel economy deteriorates by 10%-15% compared to plain conditions. Inconsistent manual calibration points (different engineers may choose different compensation strategies) further lead to uncontrollable energy consumption, affecting vehicle range.

[0056] (3) Limited dynamics

[0057] Traditional compensation methods rely solely on speed increases, failing to consider torque-speed synergy optimization. This results in actual output power still falling short of requirements under high-altitude conditions, significantly degrading acceleration performance (0-100 km / h plateau degradation can reach 15%-20%). Dynamic response is also delayed, and power shortages are common during rapid acceleration, impacting the driving experience.

[0058] The fundamental reason is that the compensation strategy is decoupled from the basic MAP table. The traditional method does not establish a correlation between the plateau environment and the basic MAP table, resulting in the working point after compensation being out of the optimal efficiency range; manual calibration relies on experience and lacks unified standards, making it difficult to ensure performance consistency under plateau conditions.

[0059] In response to the above problems, an embodiment of the present application provides a range extender plateau compensation method, which first determines the compensation speed based on simulation tests, and then corrects the compensation speed in combination with the basic MAP table to ensure that the final target speed is always at the basic calibration speed point, thereby achieving coordinated optimization of NVH, economy and power.

[0060] Figure 1 This is a flow chart of a range extender plateau compensation method provided in an embodiment of the present application. The method can be executed by the vehicle control unit, such as Figure 1 As shown, the method may include:

[0061] Step 101, in response to the vehicle traveling in a plateau environment, a target vehicle performance MAP table corresponding to the plateau environment is obtained. The target MAP table is obtained by testing and correcting the compensation speed in a plateau simulation environment, and any speed value in the target MAP table has the same speed value in the basic MAP table.

[0062] The target MAP table is obtained by testers after simulating a high-altitude environment and testing the range extender through various test conditions. Both the target MAP table and the basic MAP table store the mapping relationship between power, torque, and speed. The calibrated speed stored in the basic MAP table is mainly used in normal low-altitude areas, while the target speed stored in the target MAP table is mainly used in high-altitude areas. The basic MAP table is determined during vehicle design, and the calibrated speeds stored in it match the vehicle's performance. When testers construct the target MAP table through simulation tests, discrete calibrated speeds are used as the value range of the target speed.

[0063] Step 102 : Determine the target output power of the range extender based on the power requirements of each module of the vehicle.

[0064] While the vehicle is in motion, the control unit obtains real-time power requirements from various vehicle modules, such as the drive motor power requirements, battery charging power requirements, and onboard accessory power requirements. Based on these requirements, the control unit determines the total power requirement. Based on this total power requirement and the range extender's power generation efficiency, the control unit determines the target output power (engine mechanical power).

[0065] Step 103 : determining a target torque and a target speed related to the target output power based on a target MAP table.

[0066] The target MAP table stores a mapping relationship between target output power, target torque, and target speed. Based on the known target output power, the control unit can determine the corresponding target torque and target speed.

[0067] Step 104 : Control the vehicle based on the target output power, target torque, and target speed.

[0068] The control unit can send a target speed command to the range extender through the vehicle bus. The range extender adjusts parameters such as throttle opening and fuel injection amount to make the engine run stably at the target speed.

[0069] In an optional embodiment, when the vehicle is traveling in a normal low-altitude area, the control unit controls the operation of the range extender in combination with the basic MAP table. When the parameters obtained by the vehicle meet the plateau environment, the control unit will trigger the plateau compensation mode and obtain the target MAP table, and then control the operation of the range extender in combination with the target MAP. For example, the control unit will obtain the altitude of the vehicle in real time. When the altitude exceeds a first threshold, the plateau compensation mode is triggered and the operation of obtaining the target MAP table is executed. For another example, the control unit obtains the actual output power of the range extender in real time. If the deviation between the actual output power and the target output power exceeds a second threshold, the plateau compensation mode is triggered and the operation of obtaining the target MAP table is executed. It can be understood that when there is a large deviation between the actual output power and the target output power, it indicates that the basic MAP is no longer applicable to the current environment, and the range extender needs to be controlled using the target MAP table corresponding to the plateau environment.

[0070] In the embodiment of the present application, since the target speed in the target MAP table is taken at a discrete calibrated speed, it can avoid the problem of NVH performance degradation caused by the range extender speed frequently entering the non-optimized range, and can also solve the problem of economy degradation caused by the range extender speed frequently entering the high fuel consumption area, thereby improving the stability and economy of the vehicle.

[0071] The test personnel tested the vehicle in the plateau simulation environment to build the target MAP table. Figure 2 , the method may be executed by a processing device, including:

[0072] Step 201 : obtaining target output power and target torque of the range extender under various test conditions in a plateau simulation environment.

[0073] Testers simulate the plateau environment by building a hardware system and a software system to test the vehicle range extender. Specifically, the hardware system configuration may include: (1) Environmental simulation cabin: equipped with high-precision air pressure, temperature, and humidity control devices, which can simulate the environment at an altitude of 0-6000 meters. For example, when simulating an altitude of 3000 meters, the air pressure needs to be stable at around 70kPa and the temperature is controlled in the range of -10℃ to 20℃. (2) Intake air processing unit: Through the air compressor, pressure reducing valve and intercooler, the intake pressure, temperature and flow are adjusted to simulate the characteristics of the thin air in the plateau. At the same time, an air filter is set to ensure the cleanliness of the intake air. (3) Dynamometer system: Using an eddy current dynamometer or a motor dynamometer, the range extender load is accurately controlled to simulate the power requirements under different working conditions. The software control system may include: (1) Deploy real-time simulation software (such as MATLAB / Simulink, dSPACE), build a range extender control model, and realize dynamic adjustment and data collection of environmental parameters and load conditions. (2) Integrate vehicle dynamics models to simulate acceleration, deceleration, climbing and other conditions during actual driving, making the test closer to real scenarios.

[0074] Test conditions can include common plateau scenarios, such as continuous hill climbing, rapid acceleration and overtaking, and steady driving. The processing equipment obtains the atmospheric pressure and target output power under the current test conditions, and then determines the target torque corresponding to the current atmospheric pressure based on a pre-calibrated plateau torque characteristic curve. As the altitude increases, the atmospheric pressure decreases and the air density decreases, resulting in a decrease in engine intake volume, reduced combustion efficiency, and ultimately a decrease in output torque. This plateau torque characteristic curve quantifies the relationship between "atmospheric pressure-torque attenuation rate" to provide a basis for power compensation in plateau environments.

[0075] Step 202 : determining a compensation speed based on the target output power and the target torque.

[0076] The processing device can calculate the compensation speed based on the mathematical relationship between power, torque and speed. Usually, the compensation speed is different from the calibrated speed in the basic MAP table.

[0077] Step 203 : Correct the compensation speed based on the calibrated speed in the basic MAP table to obtain a corresponding target speed.

[0078] The basic MAP table contains multiple calibrated speeds, with a discrete set of calibrated speeds as the optional range to determine the calibrated speed associated with each compensation speed. Among them, the calibrated speed associated with each compensation speed can be regarded as the target speed corresponding to each compensation speed. For any compensation speed, the calibrated speed associated with it should be closest to the compensation speed, and considering the performance limitations of the range extender, the calibrated speed associated with it should be less than the compensation speed. Based on this principle, the processing device can first determine the calibrated speed in the basic MAP table that is less than or equal to the compensation speed as the optional speed, and then determine the maximum value among the optional speeds as the corresponding target speed.

[0079] The following is an explanation using a specific example. Assuming that the maximum speed of a range extender is 5000 rpm, the engine's torque output capacity at an altitude of 4000 meters has been calibrated. Based on the corresponding power in the basic MAP, the torque calculation formula is used: Torque = Power * 9550 / Speed to calculate the corresponding speed. Figure 3 The first three lines are the basic MAP table, including the mapping relationship between power, speed and torque. The value recorded in the second line is the calibrated speed corresponding to each power. For the same power, the torque at sea wave = 4.0 km can be determined based on the plateau torque specific curve. Figure 3 The values recorded in the fifth row are the torques corresponding to the various powers in the plateau environment. Based on the power, torque, and the above torque calculation formula, the processing device can calculate the various compensation speeds in the plateau environment.

[0080] Depend on Figure 3 As can be seen, as the range extender's target output power increases, its target torque gradually decreases, and the compensation speed is higher than the calibrated speed at the same power. Furthermore, because the target torque changes without a linear pattern, when the target torque begins to decrease, it is difficult to find a corresponding compensation speed that is the same as the calibrated speed, which affects the range extender's performance.

[0081] To address this issue, for any compensation speed, the processing device can select a calibration speed that is closest to the compensation speed and smaller than the compensation speed in the calibration speed, replace the compensation speed with the calibration speed, and determine it as the final target speed. Taking the power of 16.1KW as an example, the calculated compensation speed is 2288rpm, which is closest to 2200rpm in the calibration speed, so the target speed can be determined as 2200rpm. Starting from a power of 40.1KW, the corresponding compensation speeds all exceed the calibration speed upper limit of 5000rpm, so the target speed can be set to 500rpm. The corrected target speed can be referred to Figure 4 , the target speed at each power has the same calibrated speed in the basic MAP table.

[0082] Figure 5This is a schematic diagram of the structure of a range extender plateau compensation device provided in an embodiment of the present application. Figure 5 As shown, the device may include:

[0083] The acquisition module 510 is used to obtain a target vehicle performance MAP table corresponding to the plateau environment in response to the vehicle traveling in the plateau environment. The target MAP table is obtained by testing and correcting the compensation speed in the plateau simulation environment, and any speed value in the target MAP table has the same speed value in the basic MAP table.

[0084] The correction module 520 is configured to correct the compensation speed based on a basic MAP table.

[0085] The determination module 530 is configured to determine the target output power of the range extender based on the power requirements of each module of the vehicle.

[0086] The determination module 530 is further configured to determine a target torque and a target speed related to the target output power based on the target MAP table.

[0087] The control module 540 is configured to control the vehicle based on the target output power, the target torque, and the target speed.

[0088] Corresponding to the above embodiments, the present application also provides an electronic device. Figure 6 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. The electronic device 600 may include: a processor 601, a memory 602, and a communication unit 603. These components communicate via one or more buses. Those skilled in the art will understand that the structure of the electronic device shown in the figure does not constitute a limitation on the embodiments of the present application. It can be a bus structure or a star structure, and can also include more or fewer components than shown, or combine certain components, or arrange the components differently.

[0089] The communication unit 603 is configured to establish a communication channel so that the electronic device can communicate with other devices, receive user data sent by other devices, or send user data to other devices.

[0090] The processor 601 is the control center of the electronic device. It uses various interfaces and lines to connect the various parts of the entire electronic device. It runs or executes software programs, instructions, and / or modules stored in the memory 602, and calls the data stored in the memory to perform various functions of the electronic device and / or process data. The processor can be composed of an integrated circuit (IC), for example, it can be composed of a single packaged IC, or it can be composed of multiple packaged ICs with the same or different functions. For example, the processor 601 can only include a central processing unit (CPU). In the embodiment of the present application, the CPU can be a single computing core or multiple computing cores.

[0091] The memory 602 is used to store the execution instructions of the processor 601. The memory 602 can 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.

[0092] When the execution instructions in the memory 602 are executed by the processor 601 , the electronic device 600 is enabled to execute part or all of the steps in the above embodiments.

[0093] In a specific implementation, the present application further provides a computer storage medium, wherein the computer storage medium may store a program that, when executed, may include some or all of the steps of each embodiment of the range extender plateau compensation method provided in the present application. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

[0094] In a specific implementation, the present application also provides a computer program product, wherein the computer program product includes executable instructions. When the executable instructions are executed on a computer, the computer executes some or all of the steps in each embodiment of the range extender plateau compensation method provided in the present application.

[0095] An embodiment of the present application also provides a non-transitory computer-readable storage medium, which stores computer instructions. The computer instructions enable the computer to execute the range extender plateau compensation method provided in an embodiment of the present application.

[0096] The above-mentioned non-temporary computer-readable storage medium can adopt any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. 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 (ErasableProgrammable 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 of the above. In this document, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, device or device.

[0097] A computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, which carries computer-readable program code. Such a propagated data signal may take a variety of forms, including, but not limited to, electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0098] 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.

[0099] Those skilled in the art can clearly understand that the technology in the embodiments of the present application can be implemented by means of software plus the necessary general hardware platform. Based on this understanding, the technical solutions in the embodiments of the present application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product, which can be stored in a storage medium such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application or certain parts of the embodiments.

[0100] In this specification, reference can be made to the same or similar parts between the various embodiments. In particular, for the device embodiment and the terminal embodiment, since they are basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description in the method embodiment.

Claims

1. A range extender plateau compensation method, characterized in that: include: In response to the vehicle traveling in a plateau environment, a target vehicle performance map corresponding to the plateau environment is obtained, wherein the target MAP is obtained by testing and correcting a compensation speed in a plateau simulation environment, and any speed value in the target MAP has the same speed value in a base MAP; Determine the target output power of the range extender based on the power requirements of each module of the vehicle; determining a target torque and a target speed related to the target output power based on the target MAP table; The vehicle is controlled to travel based on the target output power, the target torque, and the target speed.

2. The method according to claim 1, characterized in that The process of testing the target MAP table in the plateau simulation environment includes: In a plateau simulation environment, the target output power and target torque of the range extender under various test conditions are obtained; determining a compensation speed based on the target output power and the target torque; The compensation speed is corrected based on the calibrated speed in the basic MAP table to obtain a corresponding target speed.

3. The method according to claim 2, characterized in that The correcting the compensation speed based on the calibrated speed in the basic MAP table to obtain the corresponding target speed includes: determining a calibrated speed in the basic MAP table that is less than or equal to the compensation speed as an optional speed; The maximum value among the selectable rotation speeds is determined as the target rotation speed.

4. The method according to claim 1, wherein The basic MAP table is a set of mapping relationships between the calibrated output power, calibrated torque, and calibrated speed of the range extender under normal altitude conditions.

5. The method according to claim 2, characterized in that The target output power and target torque of the range extender under various test conditions are obtained, including: Obtain the atmospheric pressure and target output power under the current test conditions; The target torque corresponding to the current atmospheric pressure is determined based on a pre-calibrated plateau torque characteristic curve.

6. The method according to claim 1, characterized in that The determining of the target output power of the range extender based on the power requirements of each module of the vehicle includes: Obtaining the vehicle's drive motor power requirements, battery charging power requirements, and / or vehicle accessory power requirements; Determining a total power requirement based on the drive motor power requirement, the battery charging power requirement, and / or the vehicle accessories power requirement; The target output power is determined based on the total power demand and the power generation efficiency of the range extender.

7. The method according to claim 6, characterized in that In response to the vehicle traveling in a plateau environment, obtaining a target vehicle performance MAP table corresponding to the plateau environment includes: Get the vehicle's altitude in real time; When the altitude exceeds a first threshold, a plateau compensation mode is triggered and the operation of obtaining a target MAP table corresponding to a plateau environment is performed.

8. The method according to claim 1, characterized in that In response to the vehicle traveling in a plateau environment, obtaining a target vehicle performance MAP table corresponding to the plateau environment includes: In response to the vehicle traveling in a plateau environment, obtaining actual output power of the range extender; If the deviation between the actual output power and the target output power exceeds a second threshold, a plateau compensation mode is triggered and the operation of obtaining the target MAP table is performed.

9. A range extender plateau compensation device, characterized in that: include: an acquisition module, configured to acquire, in response to the vehicle traveling in a plateau environment, a target vehicle performance MAP table corresponding to the plateau environment, wherein the target MAP table is obtained by testing and correcting a compensation speed in a plateau simulation environment, and any speed value in the target MAP table has the same speed value in a basic MAP table; a correction module, configured to correct the compensation speed based on a basic MAP table; a determination module, configured to determine a target output power of the range extender based on power requirements of various modules of the vehicle; The determining module is further configured to determine a target torque and a target speed associated with the target output power based on the target MAP table; A control module is used to control the vehicle driving based on the target output power, the target torque and the target speed.

10. An electronic device, characterized in that: The electronic device comprises a memory for storing computer program instructions and a processor for executing the program instructions, wherein when the computer program instructions are executed by the processor, the electronic device executes the method according to any one of claims 1 to 8.

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