An extender control method, a terminal device, and a storage medium

Abstract

The present application provides a range extender control method, a terminal device and a storage medium. The range extender control method includes the following steps: obtaining the real-time vehicle speed of the vehicle; calling a power calibration database, where the power calibration database at least includes: multiple groups of vehicle speeds and the corrected power generation powers corresponding to the vehicle speeds; the corrected power generation power is the base power * correction coefficient; traversing the power calibration database to determine the corrected power generation power at the real-time vehicle speed; driving the range extender with the corrected power generation power. Through the correction of the power generation power, the present solution obtains a more realistic power generation power, improving the accuracy and applicability of the control.

Description

Technical Field

[0001] This application relates to the technical field of range extenders, and particularly to a range extender control method, a terminal device, and a storage medium. Background Art

[0002] In recent years, with the continuous enhancement of the awareness of energy conservation and emission reduction, China has strongly supported the development of new energy vehicles. Among them, range-extended electric vehicles that can solve the mileage anxiety are widely favored by consumers. The energy management control strategy of range extender vehicles is the key to vehicle control. Currently, the more commonly used range extender control strategy is to determine the power generation power of the range extender according to the required power of the vehicle under different scenario conditions. However, this control method does not consider the external driving habit interference factors and has poor applicability. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide a range extender control method, a terminal device, and a storage medium.

[0004] In a first aspect, this application proposes a range extender control method, including the following steps:

[0005] Obtain the real-time vehicle speed of the vehicle;

[0006] Call a power calibration database, where the power calibration database at least includes: multiple groups of vehicle speeds and the corrected power generation power corresponding to the vehicle speeds; the corrected power generation power is the base power * correction coefficient;

[0007] Traverse the power calibration database to determine the corrected power generation power at the real-time vehicle speed;

[0008] Drive the range extender with the corrected power generation power.

[0009] According to the technical solution provided by the embodiment of this application, the correction coefficient is obtained by the following method:

[0010] Construct a characteristic parameter sequence, where the characteristic parameter sequence includes multiple parameters;

[0011] Calculate the average value and standard value of each parameter per unit mileage to obtain a first reference sequence of each parameter;

[0012] For each parameter, obtain multiple groups of the first reference sequences, and calculate the first mean value of the average values and the second mean value of the standard values in the first reference sequence to obtain a second reference sequence of the parameter;

[0013] Based on the first reference sequence and the second reference sequence of each parameter, calculate the ratio sequence of each parameter;

[0014] Construct a variation ratio matrix with the ratio sequences of all the said parameters. The variation ratio matrix includes N rows and M columns, where N, M ≥ 2;

[0015] Based on the variation ratio matrix, solve the correction coefficient by weighting.

[0016] According to the technical solution provided by the embodiment of the present application, the parameter at least includes a first parameter, and the first parameter is acceleration;

[0017] The first reference sequence corresponding to the first parameter includes average acceleration and acceleration standard deviation;

[0018] The second reference sequence corresponding to the first parameter includes average standard horizontal acceleration and standard deviation of standard horizontal acceleration;

[0019] Based on the first reference sequence corresponding to the first parameter and the second reference sequence corresponding to the first parameter, calculate the first ratio sequence corresponding to the first parameter.

[0020] According to the technical solution provided by the embodiment of the present application, the parameter at least includes a second parameter, and the second parameter is accelerator pedal opening;

[0021] The first reference sequence corresponding to the second parameter includes average accelerator pedal opening and standard deviation of accelerator pedal opening;

[0022] The second reference sequence corresponding to the second parameter includes average standard horizontal accelerator pedal opening and standard deviation of standard horizontal accelerator pedal opening;

[0023] Based on the first reference sequence corresponding to the second parameter and the second reference sequence corresponding to the second parameter, calculate the second ratio sequence corresponding to the second parameter.

[0024] According to the technical solution provided by the embodiment of the present application, the parameter at least includes a third parameter, and the third parameter is brake pedal depth;

[0025] The first reference sequence corresponding to the third parameter includes average brake pedal depth and standard deviation of brake pedal depth;

[0026] The second reference sequence corresponding to the third parameter includes average standard horizontal brake pedal depth and standard deviation of standard horizontal brake pedal depth;

[0027] Based on the first reference sequence corresponding to the third parameter and the second reference sequence corresponding to the third parameter, calculate the third ratio sequence corresponding to the third parameter.

[0028] Based on the technical solution provided by the embodiment of the present application, a fourth parameter is constructed based on the second parameter and the third parameter; the fourth parameter is: the change gradient.

[0029] The first reference sequence corresponding to the fourth parameter includes the change gradient of the accelerator pedal opening and the change gradient of the brake pedal depth.

[0030] The second reference sequence corresponding to the fourth parameter includes the change gradient of the accelerator pedal opening and the change gradient of the brake pedal depth.

[0031] According to the technical solution provided by the embodiment of the present application, the correction coefficient is solved in the following manner:

[0032] Construct a first weighted feature vector, the first weighted feature vector includes a plurality of first weighted coefficients, and the number of the first weighted coefficients is N; the sum of all the first weighted coefficients is 1;

[0033] Construct a second weighted feature vector, the second weighted feature vector includes a plurality of second weighted coefficients, and the number of the second weighted coefficients is M; the sum of all the second weighted coefficients is 1;

[0034] Solve the correction coefficient based on the first weighted feature vector, the change ratio matrix, and the second weighted feature vector.

[0035] According to the technical solution provided by the embodiment of the present application, before calling the power calibration database, the following steps are further included:

[0036] Calculate the corrected power generation at different vehicle speeds based on the correction coefficient;

[0037] Construct the power calibration database with different vehicle speeds and the corrected power generation at different vehicle speeds.

[0038] In a second aspect, the present application proposes a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: when the processor executes the computer program, the steps of the range extender control method as described above are implemented.

[0039] In a third aspect, the present application proposes a computer-readable storage medium, the computer-readable storage medium has a computer program, characterized in that when the computer program is executed by a processor, the steps of the range extender control method as described above are implemented.

[0040] In summary, this application proposes a control method for a range extender. By obtaining the real-time vehicle speed of the vehicle, calling the power calibration database to obtain the corrected power generation power, and driving the range extender with the corrected power generation power, a more realistic power generation power is obtained through the correction of the power generation power, improving the accuracy and applicability of the control. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a flowchart of a control method for a range extender provided by an embodiment of this application;

[0042] Figure 2 It is a schematic structural diagram of a computer system of a terminal device or a server. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0043] The following further elaborates on this application in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely for explaining the related invention and not for limiting the invention. Additionally, it should be noted that for ease of description, only parts related to the invention are shown in the drawings.

[0044] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will elaborate on this application in detail with reference to the drawings and embodiments.

[0045] Embodiment 1

[0046] Just as mentioned in the background art, in response to the problems in the prior art, this application proposes a control method for a range extender, as Figure 1 shown, including the following steps:

[0047] S100. Obtain the real-time vehicle speed of the vehicle;

[0048] S101. Call the power calibration database, where the power calibration database at least includes: multiple sets of vehicle speeds and the corrected power generation power corresponding to the vehicle speeds; the corrected power generation power is the base power * correction coefficient; wherein, the base power is the power generation power corresponding to different vehicle speeds under the CLTC (China Light Vehicle Test Cycle) condition;

[0049] S102. Traverse the power calibration database to determine the corrected power generation power at the real-time vehicle speed; wherein, call the corrected power generation power database to obtain the corrected power generation power corresponding to the real-time vehicle speed;

[0050] S103. Drive the range extender with the corrected power generation power; through the correction of the power generation power in this solution, a more realistic power generation power is obtained, improving the accuracy and applicability of the control.

[0051] Furthermore, the correction coefficient is solved in the following manner:

[0052] S201. Construct a characteristic parameter sequence, which includes multiple parameters; optionally, the parameters at least include a first parameter, and the first parameter is acceleration; the acceleration is calculated from the vehicle speed obtained in real time, and its calculation formula is as shown in the following formula:

[0053] a i =(v i+1 -v i-1 ) / (i*3.6) (2)

[0054] where a i is the acceleration, with the unit of m / s2, v i+1 is the vehicle speed at the (i + 1)-th moment, with the unit of km / h, v i-1 is the vehicle speed at the (i - 1)-th moment, with the unit of km / h, and i is the time step;

[0055] The parameters at least further include a second parameter, and the second parameter is the accelerator pedal opening;

[0056] The parameters at least further include a third parameter, and the third parameter is the brake pedal depth;

[0057] S202. Calculate the average value and standard value of each parameter per unit mileage to obtain a first reference sequence for each parameter; among them, the first reference sequence corresponding to the first parameter includes the average acceleration a A , the acceleration standard deviation a σ ;

[0058] The first reference sequence corresponding to the second parameter includes the average accelerator pedal opening P A , the accelerator pedal opening standard deviation P σ ;

[0059] The first reference sequence corresponding to the third parameter includes the average brake pedal depth B A , the brake pedal depth standard deviation B σ ;

[0060] Based on the second parameter and the third parameter, construct a fourth parameter; the fourth parameter is the change gradient;

[0061] The first reference sequence corresponding to the fourth parameter includes the accelerator pedal opening change gradient P grad , the brake pedal depth change gradient B grad , and the accelerator pedal opening change gradient P grad is obtained from the accelerator pedal opening change gradient P gradObtained by performing gradient derivative calculation, the braking pedal depth change gradient B grad From the braking pedal depth B A Obtained by performing gradient derivative calculation;

[0062] The first reference sequence A is a matrix, and its structure is:

[0063]

[0064] S203. For each of the parameters, obtain multiple groups of the first reference sequences, calculate the first mean value of the mean values in the first reference sequences and the second mean value of the standard values, and obtain the second reference sequence of the parameter; wherein, the second reference sequence corresponding to the first parameter includes the average value of the standard horizontal acceleration a A1 , the standard deviation of the standard horizontal acceleration a σ1 , the second reference sequence corresponding to the second parameter includes the average opening degree P of the standard horizontal accelerator pedal A1 , the standard deviation of the opening degree of the standard horizontal accelerator pedal P σ1 ,

[0065] The second reference sequence corresponding to the third parameter includes: the average depth B of the standard horizontal braking pedal A1 , the standard deviation of the depth of the standard horizontal braking pedal B σ1 ,

[0066] The second reference sequence corresponding to the fourth parameter includes the change gradient P of the standard horizontal accelerator pedal opening degree grad1 and the change gradient B of the standard horizontal braking pedal depth grad1 ;

[0067] The second reference sequence B is a matrix, and its structure is:

[0068]

[0069] S204. Based on the first reference sequence and the second reference sequence of each parameter, calculate the ratio sequence of each parameter; wherein, the ratio sequence includes the first ratio sequence corresponding to the first parameter. Based on the first reference sequence corresponding to the first parameter and the second reference sequence corresponding to the first parameter, calculate the first ratio sequence corresponding to the first parameter. The first ratio sequence is [Δa A Δa σ , where:

[0070] a A is the average value of the acceleration, and a A1 is the average value of the standard horizontal acceleration;

[0071] a σ is the standard deviation of the acceleration, a σ1 is the average value of the standard horizontal acceleration;

[0072] The ratio sequence further includes a second ratio sequence corresponding to the second parameter. Based on the first reference sequence corresponding to the second parameter and the second reference sequence corresponding to the first parameter, calculate the second ratio sequence corresponding to the first parameter. The second ratio sequence is [ΔP A ΔP σ , where:

[0073] P A is the average accelerator pedal opening, P A1 is the average value of the standard horizontal accelerator pedal opening;

[0074] P σ is the standard deviation of the accelerator pedal opening, P σ1 is the standard deviation of the standard horizontal accelerator pedal opening;

[0075] The ratio sequence further includes a third ratio sequence corresponding to the third parameter. Based on the first reference sequence corresponding to the third parameter and the second reference sequence corresponding to the third parameter, calculate the third ratio sequence corresponding to the third parameter. The third ratio sequence is [ΔB A ΔB σ , where:

[0076] B A is the average brake pedal depth, B A1 is the average value of the standard horizontal brake pedal depth;

[0077] B σ is the standard deviation of the brake pedal depth, B σ1 is the standard deviation of the standard horizontal brake pedal depth;

[0078] The ratio sequence further includes a fourth ratio sequence. Based on the first reference sequence corresponding to the fourth parameter and the second reference sequence corresponding to the fourth parameter, calculate the fourth ratio sequence corresponding to the fourth parameter, where:

[0079] P grad is the gradient of the change in the accelerator pedal opening, P grad1 is the gradient of the change in the standard horizontal accelerator pedal opening;

[0080] B grad is the gradient of the change in the depth of the brake pedal, and B grad1 is the standard horizontal gradient of the change in the depth of the brake pedal;

[0081] S205. Construct a change ratio matrix in the proportional sequence of all the parameters. The change ratio matrix includes N rows and M columns, where N, M ≥ 2; the multiple parameters include: acceleration, accelerator pedal opening, and brake pedal depth. Therefore, N is selected as 4 and M is selected as 2;

[0082] The ratio matrix is C, and its structure is:

[0083]

[0084] S206. Based on the change ratio matrix, solve the correction coefficient by weighting; in this solution, the correction coefficient is related to the accelerator pedal opening and the brake pedal depth, and the accelerator pedal opening and the brake pedal depth are determined by the driver. That is to say, this solution takes into account the driving habits of the driver, obtains the correction coefficient through the driving habits of the driver, and corrects the power generation power, so that the power generation power of the range extender is more personalized and closer to the actual application; the average value of multiple unit mileage is used for calculation, which improves the accuracy of the correction.

[0085] Further, the correction coefficient is solved in the following manner:

[0086] S301. Construct a first weighted eigenvector, which includes multiple first weighting coefficients, and the number of the first weighting coefficients is N; the sum of all the first weighting coefficients is 1;

[0087] Optionally, the first weighted eigenvector is [λ1 λ2 λ3 λ4], and λ1 + λ2 + λ3 + λ4 = 1, where λ1, λ2, λ3, λ4, μ1, μ2 are the first weighting coefficients;

[0088] S302. Construct a second weighted eigenvector, which includes multiple second weighting coefficients, and the number of the second weighting coefficients is M; the sum of all the second weighting coefficients is 1;

[0089] Optionally, the second weighted eigenvector is and μ1 + μ2 = 1, where μ1, μ2 are the second weighting coefficients;

[0090] S303. Solve the correction coefficient based on the first weighted eigenvector, the change ratio matrix, and the second weighted eigenvector; the correction coefficient is calculated by the following formula:

[0091]

[0092] Substituting C into formula (1), we get:

[0093]

[0094] When the correction coefficient K is less than -0.2, the correction coefficient K takes the value of -0.2; when the correction coefficient K is greater than 0.2, the correction coefficient K takes the value of 0.2; wherein, if the value of the correction coefficient is too large or too small, problems such as electrical imbalance or poor NVH may occur; therefore, in this embodiment, if the correction coefficient is less than -0.2, it takes the value of -0.2, and if it is greater than 0.2, it takes the value of 0.2; when K is less than or equal to 0.2 and greater than or equal to -0.2, the value of the correction coefficient obtained through formula (3) is taken.

[0095] Further, before calling the power calibration database, the following steps are further included:

[0096] Based on the correction coefficient, calculate the corrected power generation power at different vehicle speeds;

[0097] Using different vehicle speeds and the corrected power generation power at different vehicle speeds, construct the power calibration database; after establishing the power calibration database, at different vehicle speeds, by calling this power calibration database, the corrected power generation power can be obtained, and different power calibration databases are obtained for different drivers, improving the personalization of this solution and the accuracy of the correction.

[0098] Embodiment 2

[0099] Based on Embodiment 1, the present application proposes a range extender control device, including:

[0100] A first receiving module, the first receiving module is configured to receive the real-time vehicle speed;

[0101] A first storage module, the first storage module is electrically connected to the first receiving module, and the first storage module is used to store the power calibration database; wherein, the power calibration database includes the real-time vehicle speed and the corrected power generation power corresponding to the real-time vehicle speed;

[0102] A first output module, the first output module is electrically connected to the first storage module, and the first output module is used to output the corrected power generation power corresponding to the real-time vehicle speed; after calling the power calibration database, the corrected power generation power is obtained and sent to the engine.

[0103] Further, it further includes:

[0104] A second receiving module, the second receiving module is configured to obtain the set of characteristic parameters; the set of characteristic parameters includes: acceleration, accelerator pedal opening, brake pedal depth, etc.;

[0105] A second storage module, the second storage module is configured to store the set of characteristic parameters;

[0106] A first calculation module, the first calculation module is electrically connected to the second storage module and the first timing module, the first calculation module is configured to calculate the first reference parameter set from the set of characteristic parameters; the first calculation module has a mean function, a standard deviation function and a gradient function inside, which are used to take the average, take the standard deviation and take the gradient derivative of the set of characteristic parameters.

[0107] Further, it further includes:

[0108] A third storage module, the third storage module is electrically connected to the first calculation module, the third storage module is configured to store the first reference parameter set;

[0109] A second calculation module, the second calculation module is electrically connected to the third storage module, the second calculation module is configured to calculate the second reference parameter set from the first reference parameter set; wherein, the second calculation module is to take the average of multiple first reference parameter sets to obtain the second reference parameter set;

[0110] A fourth storage module, the fourth storage module is electrically connected to the second calculation module, the fourth storage module is configured to store the second reference parameter set;

[0111] A third calculation module, the third calculation module is electrically connected to the fourth storage module, the third calculation module is configured to calculate the correction coefficient from the second reference parameter set; wherein, the third calculation module has the weighting function, which is used to perform weighted calculation on the second reference parameter set to obtain the correction coefficient.

[0112] Further, it further includes:

[0113] A fifth storage module, the fifth storage module is electrically connected to the first receiving module, the fifth storage module is configured to store a basic power database, the basic power database includes at least multiple groups of vehicle speeds, and the basic power corresponding to the vehicle speeds;

[0114] A fourth calculation module, electrically connected to the fifth storage module and the third calculation module, configured to obtain the corrected power generation power from the base power and the correction factor; wherein, the fourth calculation module has a multiplication function to multiply the base power corresponding to different vehicle speeds by the correction factor to obtain the corrected power generation power.

[0115] Embodiment 3

[0116] A terminal device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the above-described range extender control method are implemented.

[0117] Next, refer to Figure 2 , which shows a schematic structural diagram of a computer system 700 suitable for use in implementing the terminal device or server of the embodiments of the present application.

[0118] As Figure 2 shown, the computer system 700 includes a central processing unit (CPU) 701, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 702 or the program loaded from the storage section 708 into the random access memory (RAM) 703. In the RAM 703, various programs and data required for the operation of the system 700 are also stored. The CPU 701, ROM 702, and RAM 703 are connected to each other via a bus 704. The input / output (I / O) interface 705 is also connected to the bus 704.

[0119] The following components are connected to the I / O interface 705: an input section 706 including a keyboard, a mouse, etc.; an output section 707 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc. and a speaker, etc.; a storage section 708 including a hard disk, etc.; and a communication section 709 including a network interface card such as a LAN card, a modem, etc. The communication section 709 performs communication processing via a network such as the Internet. A drive 710 is also connected to the I / O interface 705 as needed. A removable medium 711, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 710 as needed so that a computer program read from it can be installed into the storage section 708 as needed.

[0120] Specifically, according to an embodiment of the present disclosure, the process described above with reference to Figure 1 can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program tangibly contained on a machine-readable medium, and the computer program includes instructions for executing Figure 1Program code of the method. In such an embodiment, the computer program can be downloaded and installed from a network through the communication part 709, and / or installed from the removable medium 711.

[0121] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagram may represent a module, a program segment, or a part of code that contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the block may occur in a different order than marked in the accompanying drawings. For example, two consecutive blocks shown may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and the combinations of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system that performs the specified functions or operations, or can be implemented by a combination of dedicated hardware and computer instructions.

[0122] Embodiment 4

[0123] The fourth embodiment of this application also provides a computer-readable storage medium. The computer-readable storage medium may be the computer-readable storage medium included in the device described in the above embodiments; or it may exist separately and be a computer-readable storage medium not assembled into the device. The computer-readable storage medium stores one or more programs, and the one or more programs are used by one or more processors to execute the steps of the range extender control method described in Embodiment 1.

[0124] Specific examples are used herein to elaborate on the principles and implementation manners of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application. The above are only the preferred implementation manners of this application. It should be noted that due to the limited nature of written expression and the objectively infinite specific structures, for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements, refinements, or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes, or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, should all be regarded as the protection scope of this application.

Claims

1. A range extender control method, characterized in that, It includes the following steps: Obtain the real-time vehicle speed of the vehicle; Call the power calibration database, where the power calibration database at least includes: multiple groups of vehicle speeds and the corrected power generation power corresponding to the vehicle speeds; the corrected power generation power is the base power * correction coefficient; Traverse the power calibration database to determine the corrected power generation power at the real-time vehicle speed; Drive the range extender with the corrected power generation power; The correction coefficient is solved in the following manner: Construct a characteristic parameter sequence, where the characteristic parameter sequence includes multiple parameters; Calculate the average value and standard value of each parameter per unit mileage to obtain the first reference sequence of each parameter; For each parameter, obtain multiple groups of the first reference sequences, calculate the first mean value of the average value and the second mean value of the standard value in the first reference sequence to obtain the second reference sequence of the parameter; Based on the first reference sequence and the second reference sequence of each parameter, calculate the ratio sequence of each parameter; Construct a change ratio matrix with the ratio sequences of all the parameters. The change ratio matrix includes N rows and M columns, where N, M ≥ 2; Based on the change ratio matrix, solve the correction coefficient by weighting.

2. The range extender control method according to claim 1, wherein: The parameter at least includes a first parameter, and the first parameter is acceleration; The first reference sequence corresponding to the first parameter includes average acceleration and acceleration standard deviation; The second reference sequence corresponding to the first parameter includes average standard horizontal acceleration and standard horizontal acceleration standard deviation; Based on the first reference sequence corresponding to the first parameter and the second reference sequence corresponding to the first parameter, calculate the first ratio sequence corresponding to the first parameter.

3. The range extender control method according to claim 2, wherein: The parameter at least includes a second parameter, and the second parameter is the accelerator pedal opening; The first reference sequence corresponding to the second parameter includes average accelerator pedal opening and accelerator pedal opening standard deviation; The second reference sequence corresponding to the second parameter includes average standard horizontal accelerator pedal opening and standard horizontal accelerator pedal opening standard deviation; Based on the first reference sequence corresponding to the second parameter and the second reference sequence corresponding to the second parameter, calculate the second ratio sequence corresponding to the second parameter.

4. The range extender control method according to claim 3, wherein: The parameter at least includes a third parameter, and the third parameter is the brake pedal depth; The first reference sequence corresponding to the third parameter includes average brake pedal depth and brake pedal depth standard deviation; The second reference sequence corresponding to the third parameter includes average standard horizontal brake pedal depth and standard horizontal brake pedal depth standard deviation; Based on the first reference sequence corresponding to the third parameter and the second reference sequence corresponding to the third parameter, calculate the third ratio sequence corresponding to the third parameter.

5. The range extender control method according to claim 4, wherein: Construct a fourth parameter based on the second parameter and the third parameter; the fourth parameter is: the change gradient. The first reference sequence corresponding to the fourth parameter includes the change gradient of the accelerator pedal opening and the change gradient of the brake pedal depth. The second reference sequence corresponding to the fourth parameter includes the change gradient of the accelerator pedal opening and the change gradient of the brake pedal depth.

6. The range extender control method according to any one of claims 1-5, characterized in that, The correction coefficient is solved by the following method: Construct a first weighted feature vector, the first weighted feature vector includes a plurality of first weighted coefficients, and the number of the first weighted coefficients is N; the sum of all the first weighted coefficients is 1. Construct a second weighted feature vector, the second weighted feature vector includes a plurality of second weighted coefficients, and the number of the second weighted coefficients is M; the sum of all the second weighted coefficients is 1. Solve the correction coefficient based on the first weighted feature vector, the change ratio matrix and the second weighted feature vector.

7. The range extender control method according to claim 1, wherein Before calling the power calibration database, the following steps are further included: Calculate the corrected power generation power at different vehicle speeds based on the correction coefficient. Construct the power calibration database with different vehicle speeds and the corrected power generation power at different vehicle speeds.

8. A terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the range extender control method according to any one of claims 1 to 7 are implemented.

9. A computer-readable storage medium having a computer program, characterized in that, When the computer program is executed by the processor, the steps of the range extender control method according to any one of claims 1 to 7 are implemented.

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