Hybrid gearbox ECVT mode power distribution strategy, electronic equipment and vehicle

Abstract

The invention relates to the technical field of vehicle hybrid gearbox control, in particular to a hybrid gearbox ECVT dual-motor pure electric driving power distribution control strategy, electronic equipment and a vehicle. According to the ECVT mode power distribution strategy of the hybrid gearbox, the NVH problem of the hybrid gearbox can be effectively solved by reasonably distributing the driving positive power and the recycling negative power of the driving motor and the generator during ECVT dual-motor pure electric driving running, meanwhile, durability and economical efficiency are considered, and the vehicle driving experience is improved; meanwhile, the invention provides a method for calculating the maximum driving positive power and the minimum recycling negative power of the driving motor and the generator, basic protection of a power battery is considered, and the accuracy of power distribution control can be further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle hybrid transmission control, and in particular to a hybrid transmission ECVT dual-motor pure electric driving power distribution control strategy and electronic equipment and vehicles. Background Art

[0002] Planetary power split multi-speed hybrid transmission structure, such as Figure 1 As shown, the engine (ICE) flywheel is connected to the planet carrier of the single planetary gear, the generator (EM2) is connected to the sun gear and the left and right sides of the S2 synchronizer are respectively engaged to realize the integration of the entire planetary gear and the stationary sun gear-generator, the ring gear is connected to the wheels through the left and right sides of the S1 synchronizer respectively with two sets of gear systems with different speed ratios through the differential and half-shafts, and the drive motor (EM1) and another set of gear systems are also connected to the wheels through the differential and half-shafts.

[0003] In the ECVT dual-motor driving mode of the prior art, there are many ways to distribute the electric power between the EM1 drive motor and the EM2 generator, and different distribution methods may bring different vehicle performance. Based on the hybrid transmission configuration and the characteristics of the flywheel locking mechanism, the EM2 generator driving power transmission path is long when the ECVT dual-motor is driven purely electrically, and the transmission efficiency is relatively low, which is not conducive to the vehicle's economy. In addition, when the push rods of the locking solenoid valves on both sides extend into the flywheel groove after the flywheel is locked, there may be a gap between the push rods and the grooves, and the gear chain between the EM2 generator and the wheel end is long and has many contact surfaces and there is a gear gap. In this way, the rapid change of the torque of the EM2 generator or the change of the torque direction will bring about the knocking sound of the locking solenoid valve push rod and the flywheel groove and the knocking sound of the gear, resulting in system noise and vibration (NVH) problems, and even affecting the reliability and durability of the locking mechanism. Therefore, the power distribution of the EM1 drive motor and the EM2 generator in the ECVT dual-motor pure electric driving mode needs to consider economy while also paying attention to NVH and reliability and durability, as well as basic system protection. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in view of the deficiencies in the prior art, a hybrid transmission ECVT mode power distribution strategy is provided, which can effectively improve the NVH problem of the hybrid transmission, while taking into account durability and economy, and improving the vehicle driving experience.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A hybrid transmission ECVT mode power distribution strategy, comprising:

[0007] S1, determining the maximum positive driving power of the driving motor according to the difference between the actual SOC of the battery and the minimum target SOC combined with the total discharge power of the battery;

[0008] S2, determining the maximum positive driving power of the generator by combining the maximum positive driving power of the driving motor with the maximum positive available power of the driving motor;

[0009] S3, determining the minimum negative power recovery of the drive motor according to the difference between the actual SOC of the battery and the maximum target SOC combined with the total charging power of the battery and the negative power external characteristics of the drive motor;

[0010] S4, set the minimum negative power recovery of the generator to 0;

[0011] S5, executes driving power distribution under pure electric working condition of hybrid transmission ECVT dual motor according to maximum driving positive power of driving motor, maximum driving positive power of generator, minimum recovery negative power of driving motor and minimum recovery negative power of generator.

[0012] Further, the determining of the maximum positive driving power of the driving motor includes:

[0013] 1) According to the difference between the actual SOC of the battery and the minimum target SOC, query the one-dimensional relationship table between the minimum target SOC difference and the driving positive power limit to determine the SOC driving positive power limit;

[0014] 2) Smoothing the SOC driving positive power limit based on a preset SOC positive power rising slope LU1 and a preset SOC positive power falling slope LD1;

[0015] 3) Take the minimum value between the smoothed SOC drive positive power limit and the total battery discharge power to determine the maximum drive positive power of the drive motor.

[0016] Furthermore, the maximum positive driving power of the generator is specifically obtained by subtracting the maximum positive driving power of the driving motor from the maximum available positive power of the driving motor.

[0017] Furthermore, the process of determining the maximum available positive power of the driving motor includes:

[0018] 1) Take the minimum value between the allowable positive torque of the drive motor and the external characteristic of the positive torque of the drive motor to determine the maximum allowable positive torque of the drive motor;

[0019] 2) calculating the maximum allowable positive power of the drive motor based on the maximum allowable positive torque of the drive motor and the torque-to-power conversion coefficient;

[0020] 3) Take the minimum value of the maximum allowable positive power of the drive motor, the maximum driving positive power of the drive motor and the positive power external characteristic of the drive motor to determine the maximum available positive power of the drive motor.

[0021] Furthermore, the positive torque external characteristic of the drive motor, the positive power external characteristic of the drive motor, and the negative power external characteristic of the drive motor are respectively obtained by querying the corresponding one-dimensional relationship table between the positive torque external characteristic and the speed, the one-dimensional relationship table between the positive power external characteristic and the speed, and the one-dimensional relationship table between the negative power external characteristic and the speed according to the drive motor speed.

[0022] Furthermore, the determining of the minimum negative power recovery of the driving motor includes:

[0023] 1) According to the difference between the actual SOC of the battery and the maximum target SOC, query the one-dimensional relationship table between the maximum target SOC difference and the recovery negative power limit to determine the SOC recovery negative power limit;

[0024] 2) smoothing the SOC recovery negative power limit based on a preset SOC negative power rising slope LU2 and a preset SOC negative power falling slope LD2;

[0025] 3) Take the minimum value among the smoothed SOC recovery negative power limit, the total battery charging power and the drive motor negative power external characteristic to determine it as the minimum recovery negative power of the drive motor.

[0026] Furthermore, the one-dimensional relationship table between the minimum target SOC difference and the driving positive power limit, the one-dimensional relationship table between the maximum target SOC difference and the recovery negative power limit, the one-dimensional relationship table between the positive torque external characteristic and the speed, the one-dimensional relationship table between the positive power external characteristic and the speed, and the one-dimensional relationship table between the negative power external characteristic and the speed are all determined through experimental calibration.

[0027] Compared with the prior art, the present invention has the following main advantages:

[0028] The present invention proposes a power distribution strategy for the ECVT mode of a hybrid transmission. By reasonably distributing the driving positive power and recovered negative power of the drive motor and the generator during pure electric driving of the ECVT dual-motor, the NVH problem of the hybrid transmission can be effectively improved, while taking into account durability and economy, and improving the vehicle driving experience. At the same time, the present invention proposes a calculation method for the maximum driving positive power and the minimum recovered negative power of the drive motor and the generator, which takes into account the basic protection of the power battery and can further improve the accuracy of power distribution control. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of a planetary gearbox with power split and multi-speed hybrid transmission in the background technology of the present invention;

[0030] Figure 2 This is a flow chart of the ECVT dual-motor pure electric driving power distribution control strategy in the first embodiment of the present invention;

[0031] Figure 3This is a logic block diagram for calculating the maximum positive driving power of the EM1 driving motor in the second embodiment of the present invention;

[0032] Figure 4 This is a logic block diagram for calculating the maximum positive driving power of the EM2 generator in the second embodiment of the present invention;

[0033] Figure 5 This is a logic block diagram for calculating the minimum recovered negative power of the EM1 driving motor in the second embodiment of the present invention. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] It should be pointed out that, according to the needs of implementation, the various steps / components described in this application can be split into more steps / components, and two or more steps / components or partial operations of steps / components can be combined into new steps / components to achieve the purpose of the present invention.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0037] Embodiment 1. This embodiment provides a hybrid transmission ECVT mode power distribution strategy. Based on the structure of a planetary power-split multi-speed hybrid transmission and the characteristics of a flywheel locking mechanism, a distribution principle for driving positive power and recovering negative power of the EM1 drive motor and the EM1 generator during ECVT dual-motor pure electric driving that takes into account NVH while taking into account durability and economy is formulated, as well as a basic protection control method for low / high remaining battery capacity (SOC) and a power processing method that ensures a certain degree of drivability under this condition.

[0038] like Figure 2 As shown, it mainly includes:

[0039] S1, determining the maximum positive driving power of the driving motor according to the difference between the actual SOC of the battery and the minimum target SOC combined with the total discharge power of the battery;

[0040] S2, determining the maximum positive driving power of the generator by combining the maximum positive driving power of the driving motor with the maximum positive available power of the driving motor;

[0041] S3, determining the minimum negative power recovery of the drive motor according to the difference between the actual SOC of the battery and the maximum target SOC combined with the total charging power of the battery and the negative power external characteristics of the drive motor;

[0042] S4, set the minimum negative power recovery of the generator to 0;

[0043] S5, executes driving power distribution under pure electric working condition of hybrid transmission ECVT dual motor according to maximum driving positive power of driving motor, maximum driving positive power of generator, minimum recovery negative power of driving motor and minimum recovery negative power of generator.

[0044] Further, the determining of the maximum positive driving power of the driving motor includes:

[0045] 1) According to the difference between the actual SOC of the battery and the minimum target SOC, query the one-dimensional relationship table between the minimum target SOC difference and the driving positive power limit to determine the SOC driving positive power limit;

[0046] 2) Smoothing the SOC driving positive power limit based on a preset SOC positive power rising slope LU1 and a preset SOC positive power falling slope LD1;

[0047] 3) Take the minimum value between the smoothed SOC drive positive power limit and the total battery discharge power to determine the maximum drive positive power of the drive motor.

[0048] Furthermore, the maximum positive driving power of the generator is specifically the difference between the maximum positive driving power of the drive motor and the maximum available positive power of the drive motor.

[0049] Furthermore, the process of determining the maximum available positive power of the driving motor includes:

[0050] 1) Take the minimum value between the allowable positive torque of the drive motor and the external characteristic of the positive torque of the drive motor to determine the maximum allowable positive torque of the drive motor;

[0051] 2) calculating the maximum allowable positive power of the drive motor based on the maximum allowable positive torque of the drive motor and the torque-to-power conversion coefficient;

[0052] 3) Take the minimum value of the maximum allowable positive power of the drive motor, the maximum driving positive power of the drive motor and the positive power external characteristic of the drive motor to determine the maximum available positive power of the drive motor.

[0053] Furthermore, the positive torque external characteristic of the drive motor, the positive power external characteristic of the drive motor, and the negative power external characteristic of the drive motor are respectively obtained by querying the corresponding one-dimensional relationship table between the positive torque external characteristic and the speed, the one-dimensional relationship table between the positive power external characteristic and the speed, and the one-dimensional relationship table between the negative power external characteristic and the speed according to the drive motor speed.

[0054] Furthermore, the determining of the minimum negative power recovery of the driving motor includes:

[0055] 1) According to the difference between the actual SOC of the battery and the maximum target SOC, query the one-dimensional relationship table between the maximum target SOC difference and the recovery negative power limit to determine the SOC recovery negative power limit;

[0056] 2) smoothing the SOC recovery negative power limit based on a preset SOC negative power rising slope LU2 and a preset SOC negative power falling slope LD2;

[0057] 3) Take the minimum value among the smoothed SOC recovery negative power limit, the total battery charging power and the drive motor negative power external characteristic to determine it as the minimum recovery negative power of the drive motor.

[0058] Furthermore, the one-dimensional relationship table between the minimum target SOC difference and the driving positive power limit, the one-dimensional relationship table between the maximum target SOC difference and the recovery negative power limit, the one-dimensional relationship table between the positive torque external characteristic and the speed, the one-dimensional relationship table between the positive power external characteristic and the speed, and the one-dimensional relationship table between the negative power external characteristic and the speed are all determined through experimental calibration.

[0059] Embodiment 2: This embodiment provides a hybrid transmission ECVT mode power distribution strategy, and the specific control strategy includes:

[0060] 1. EM1 drive motor and EM2 generator drive positive power distribution

[0061] 1) EM1 drive motor maximum positive power:

[0062] Based on the speed ratio and motor efficiency map calculation, the ECVT dual-motor pure electric drive can meet the driver's needs even if only the drive motor is used. Under a few working conditions, the overall efficiency of the generator participating in the drive in an appropriate proportion is relatively higher than that of only using the drive motor, but the advantage is not very obvious, and the change in the generator torque will cause NVH problems such as locking mechanism knocking and gear knocking. Therefore, the total discharge power of the battery is given priority to the drive motor after comprehensive consideration. The generator will only participate in the drive when the driver's demand exceeds the drive motor's capacity. In addition, in order to avoid the high-voltage relay being disconnected due to the low battery remaining capacity (SOC), the positive power output needs to be limited when the SOC is low. The positive power limit is calculated by looking up the table with the difference between the battery SOC and the minimum target SOC as input, and the actual system performance is calibrated. The basic principle is that the SOC difference is proportional to the power limit, and when the SOC difference is higher than a certain value, the positive power output does not need to consider the SOC.

[0063] Take the following one-dimensional table of Table 1 - Minimum target SOC difference - driving positive power limit as an example:

[0064] Minimum SOC difference / % 0 0.5 1 2 Positive power limit / kW 1 5 10 150

[0065] When the SOC difference is 0, only 1kw positive power output is allowed for driving. When the SOC difference is higher than 2%, driving is no longer restricted. During this period, in order to avoid a short-term sudden change in driving capability caused by a rapid change in driving positive power due to SOC changes, the SOC positive power limit is smoothed with a certain slope. In summary, the maximum driving positive power of the driving motor is the smaller of the total battery discharge power and the positive power limit after SOC limit smoothing. The corresponding logic block diagram is shown in Figure 3 .

[0066] 2) EM2 generator maximum positive drive power:

[0067] According to the principle of giving priority to the positive power output of the drive motor, the maximum positive drive power of the generator is the residual power after deducting the maximum available positive power of the drive motor from the maximum positive drive power of the drive motor. That is, under the current working condition, the full capacity of the drive motor is fully exerted before the generator is used to participate in the drive.

[0068] The logic diagram for calculating the maximum available positive power of the drive motor is shown in Figure 4 First, the MCU takes into account factors such as motor temperature and calculates the allowable positive torque of the drive motor. The smaller of the external characteristics of the motor positive torque is taken to obtain the maximum allowable positive torque of the drive motor. Then, the quadratic equation between the motor torque and electric power is fitted based on the motor bench test data. The relationship (the A, B, and C coefficients are obtained based on the one-dimensional map table of the motor speed) can be used to obtain the maximum allowable positive power of the drive motor. Finally, the maximum available positive power of the drive motor is obtained by taking the smaller of the maximum positive power of the drive motor and the positive power external characteristic obtained based on the one-dimensional map table of the motor speed.

[0069] 2. Negative power recovery distribution between EM1 drive motor and EM2 generator

[0070] Similar to the positive power distribution, the transmission efficiency from the generator to the wheel end is still considered. If the driving process changes to energy recovery, the direction of the generator driving torque will change, and it is also easier to produce the knocking sound of the locking mechanism and the gear knocking sound. At the same time, it is considered that only the negative power of the drive motor can meet the energy recovery needs of the vehicle. Therefore, the total charging power of the battery is all allocated to the drive motor, and the generator no longer participates in energy recovery, that is, the minimum negative power recovery of the generator is 0. Among them, in order to avoid the battery SOC being charged too high and the battery voltage being too high, the negative power recovery needs to be limited when the SOC is high. The difference between the battery SOC and the highest target SOC is used as the input to look up the table to calculate the negative power limit, and the actual system performance calibration is the standard. The basic principle is that the SOC difference is proportional to the power limit, and after the SOC difference is lower than a certain value, the negative power output does not need to consider the SOC.

[0071] Take the following one-dimensional table of Table 2 - Maximum target SOC difference - recovery negative power limit as an example:

[0072] Maximum SOC difference / % -2 -1 -0.5 0 Negative power limit / kW -100 -75 -50 0

[0073] When the SOC difference is 0, the drive motor energy recovery is not allowed. When the SOC difference is less than -2%, charging is no longer restricted. In order to avoid driving problems caused by short-term rapid changes in the drive recovery power due to SOC changes, the SOC negative power limit is smoothed with a certain slope. In summary, the minimum negative recovery power of the drive motor is the greater of the total battery charging power, the negative power limit after SOC limit smoothing, and the negative power external characteristic obtained by the one-dimensional lookup table based on the motor speed. The corresponding logic block diagram is shown in Figure 5 .

[0074] Embodiment three, based on the same inventive concept, this embodiment also provides a vehicle electronic device, including a memory, a processor and a program stored in the memory and executable on the processor, and when the processor executes the program, the hybrid transmission ECVT dual-motor pure electric driving power distribution control strategy as described above is implemented.

[0075] Embodiment 4: Based on the same inventive concept, this embodiment further provides a hybrid vehicle, wherein the vehicle is provided with the vehicle electronic device as described above.

[0076] Furthermore, all parts of the present application that are not described in detail are the same as the prior art or are implemented using the prior art.

[0077] In summary:

[0078] The present invention proposes a power distribution strategy for the ECVT mode of a hybrid transmission. By reasonably distributing the driving positive power and recovered negative power of the drive motor and the generator during pure electric driving of the ECVT dual-motor, the NVH problem of the hybrid transmission can be effectively improved, while taking into account durability and economy, and improving the vehicle driving experience. At the same time, the present invention proposes a calculation method for the maximum driving positive power and the minimum recovered negative power of the drive motor and the generator, which takes into account the basic protection of the power battery and can further improve the accuracy of power distribution control.

[0079] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0080] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0081] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0082] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0083] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hybrid transmission ECVT mode power distribution strategy, characterized in that: include: The maximum positive driving power of the driving motor is determined based on the difference between the actual SOC of the battery and the minimum target SOC and the total discharge power of the battery; Determine the maximum positive driving power of the generator by combining the maximum positive driving power of the driving motor with the maximum positive available power of the driving motor; According to the difference between the actual SOC of the battery and the maximum target SOC, combined with the total charging power of the battery and the negative power external characteristics of the drive motor, the minimum negative power recovery of the drive motor is determined, and the minimum negative power recovery of the generator is set to 0; The driving power distribution under the pure electric working condition of the hybrid transmission ECVT dual-motor is executed according to the maximum driving positive power of the driving motor, the maximum driving positive power of the generator, the minimum recovery negative power of the driving motor and the minimum recovery negative power of the generator.

2. A hybrid transmission ECVT mode power distribution strategy according to claim 1, characterized in that: The determining of the maximum positive driving power of the driving motor comprises: According to the difference between the actual SOC of the battery and the minimum target SOC, querying a one-dimensional relationship table between the minimum target SOC difference and the driving positive power limit to determine the SOC driving positive power limit; Smoothing the SOC driving positive power limit based on a preset SOC positive power rising slope LU1 and a preset SOC positive power falling slope LD1; The minimum value between the smoothed SOC drive positive power limit and the total battery discharge power is taken to determine the maximum drive positive power of the drive motor.

3. A hybrid transmission ECVT mode power distribution strategy according to claim 2, characterized in that: The maximum positive driving power of the generator is specifically obtained by subtracting the maximum positive driving power of the driving motor from the maximum available positive power of the driving motor.

4. A hybrid transmission ECVT mode power distribution strategy according to claim 2, characterized in that: The process of determining the maximum available positive power of the driving motor includes: Take the minimum value between the allowable positive torque of the drive motor and the positive torque external characteristic of the drive motor to determine the maximum allowable positive torque of the drive motor; Calculating the maximum allowable positive power of the drive motor based on the maximum allowable positive torque of the drive motor and the torque-to-power conversion coefficient; The minimum value of the maximum allowable positive power of the drive motor, the maximum drive positive power of the drive motor and the positive power external characteristic of the drive motor is taken to determine the maximum available positive power of the drive motor.

5. A hybrid transmission ECVT mode power distribution strategy according to claim 4, characterized in that: The positive torque external characteristic of the driving motor, the positive power external characteristic of the driving motor, and the negative power external characteristic of the driving motor are respectively obtained by querying the corresponding one-dimensional relationship table between the positive torque external characteristic and the speed, the one-dimensional relationship table between the positive power external characteristic and the speed, and the one-dimensional relationship table between the negative power external characteristic and the speed according to the driving motor speed.

6. A hybrid transmission ECVT mode power distribution strategy according to claim 5, characterized in that: The determining of the minimum negative power recovery of the driving motor comprises: According to the difference between the actual SOC of the battery and the maximum target SOC, querying a one-dimensional relationship table between the maximum target SOC difference and the recovery negative power limit to determine the SOC recovery negative power limit; Smoothing the SOC recovery negative power limit value based on a preset SOC negative power rising slope LU2 and a preset SOC negative power falling slope LD2; The minimum value among the smoothed SOC recovery negative power limit, the total battery charging power and the drive motor negative power external characteristic is taken to determine the minimum recovery negative power of the drive motor.

7. A hybrid transmission ECVT mode power distribution strategy according to claim 6, characterized in that: The one-dimensional relationship table of the minimum target SOC difference and the driving positive power limit, the one-dimensional relationship table of the maximum target SOC difference and the recovery negative power limit, the one-dimensional relationship table of the positive torque external characteristic and the speed, the one-dimensional relationship table of the positive power external characteristic and the speed, and the one-dimensional relationship table of the negative power external characteristic and the speed are all determined through experimental calibration.

8. A vehicle electronic device, comprising a memory, a processor, and a program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the hybrid transmission ECVT dual-motor pure electric driving power distribution control strategy as described in any one of claims 1 to 7 is implemented.

9. A non-transitory readable storage medium having a program stored thereon, characterized in that: When the program is executed by the vehicle electronic equipment, it implements the hybrid transmission ECVT dual-motor pure electric driving power distribution control strategy as described in any one of claims 1 to 7.

10. A hybrid vehicle, characterized in that: The vehicle electronic device comprising the vehicle electronic device as claimed in claim 8.

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