Method and device for controlling regeneration of GPF of strong hybrid automobile

Abstract

The invention discloses a strong hybrid automobile GPF regeneration control method and device, and the method comprises the steps: obtaining a GPF carbon loading amount sent by an engine of an automobile, and judging whether the GPF carbon loading amount is greater than a GPF carbon loading amount threshold value or not; if yes, whether the vehicle speed of the vehicle is larger than a vehicle speed threshold value or not is judged; when it is judged that the vehicle speed of the vehicle is larger than the vehicle speed threshold value, whether the percentage of the remaining capacity of a battery pack of the vehicle is within a preset range or not is judged; and if yes, whether the accelerator opening degree of the vehicle is zero or not is judged, and regeneration control is conducted on the GPF in a corresponding regeneration mode according to the judgment result of the accelerator opening degree. The problem that in the prior art, the effect is poor when the GPF regeneration control of the strong hybrid automobile is carried out is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a GPF regeneration control method and device for a strong hybrid vehicle. Background Art

[0002] With the addition of restrictions on particulate matter emissions in the National VI emission regulations, and the emission restrictions of National VI Phase B are 10 times stricter than those of National VI Phase A, based on considerations of fuel consumption, emissions, etc., major OEMs are moving towards pure electric vehicles and hybrid vehicles. Due to the frequent start and stop of the engine in hybrid vehicles, especially strong hybrid vehicles, the start and stop are more frequent, and the amount of particulate matter emitted from their exhaust is greater than that of traditional fuel vehicles. This not only causes pollution, but also as the particle blockage accumulates over time, it is easy to cause exhaust blockage problems, causing the engine performance to decline, affecting the power and economy of the entire vehicle. At present, the GPF control methods of most hybrid vehicles or fuel vehicles during driving are active and passive regeneration. Active regeneration is to increase the engine torque speed, increase the load, increase the GPF carrier center temperature, and then burn the carbon deposits in the GPF by creating more oxygen. Passive regeneration is to cut off the fuel supply after the GPF carrier center temperature reaches a certain value, allowing a large amount of air to enter the GPF for combustion regeneration. Therefore, formulating a set of high-efficiency active and passive regeneration control methods can reduce vehicle emissions and improve the fuel economy and drivability of the vehicle.

[0003] The existing GPF regeneration control technology generally simply determines the GPF carbon load and then executes the corresponding instructions. For a strong hybrid structure, because the battery pack has a small amount of power, if the SOC is not considered, it is easy to cause the battery pack to be overcharged, and then the regeneration time is short and the effect is not good. And during passive regeneration, if the fuel is simply cut off, it will cause poor driving performance and the vehicle will have an impact when entering and exiting this mode. Therefore, the existing GPF regeneration control method still has certain disadvantages. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a method and device for controlling GPF regeneration of a strong hybrid vehicle, aiming to solve the problem of poor effect of GPF regeneration control of a strong hybrid vehicle in the prior art.

[0005] An object of the present invention is to provide a GPF regeneration control method for a strong hybrid vehicle, which is applied to a hybrid controller of the vehicle, and the method comprises: Obtaining a GPF carbon load sent by the engine of the vehicle, and determining whether the GPF carbon load is greater than a GPF carbon load threshold; If so, determining whether the vehicle speed is greater than a speed threshold; When it is determined that the speed of the vehicle is greater than the speed threshold, determining whether the remaining power percentage of the battery pack of the vehicle is within a preset range; If so, it is determined whether the throttle opening of the vehicle is zero, and a corresponding regeneration method is used to regenerate the GPF according to the determination result of the throttle opening.

[0006] Furthermore, in the above-mentioned GPF regeneration control method for a strong hybrid vehicle, before the step of determining whether the remaining power of the battery pack of the vehicle is within a preset range when determining that the vehicle speed is greater than the vehicle speed threshold, the method includes: The speed of the vehicle is obtained, and the corresponding preset range of the remaining power percentage of the battery pack is searched in a preset mapping table according to the speed of the vehicle.

[0007] Furthermore, in the above-mentioned GPF regeneration control method for a strong hybrid vehicle, the step of controlling the GPF regeneration by adopting a corresponding regeneration method according to the judgment result of the throttle opening comprises: When the throttle opening of the vehicle is not zero, obtaining the current mode of the vehicle; When the vehicle is in series mode, performing corresponding series active regeneration on the GPF; When the vehicle is in parallel mode, the GPF is actively regenerated in parallel; Among them, the series mode is that the engine and the generator cooperate to generate electricity to charge the battery pack and supply the drive motor, and the parallel mode is that the engine directly drives the wheel end.

[0008] Furthermore, in the above-mentioned GPF regeneration control method for a strong hybrid vehicle, the step of controlling the GPF regeneration by adopting a corresponding regeneration method according to the judgment result of the throttle opening further includes: When the throttle opening of the vehicle is zero, determining whether the vehicle currently meets the passive regeneration condition; If yes, passive regeneration control is performed on the GPF; Among them, the passive regeneration conditions are whether the remaining power percentage of the vehicle's battery pack, GPF temperature and altitude are within a preset range.

[0009] Furthermore, in the above-mentioned strong hybrid vehicle GPF regeneration control method, the step of passively regenerating the GPF comprises: When the mode of the vehicle is the series mode, a fuel cut-off command is sent to the engine of the vehicle to perform passive regeneration control on the GPF.

[0010] Furthermore, in the above-mentioned strong hybrid vehicle GPF regeneration control method, the step of passively regenerating the GPF further comprises: When the vehicle is in the parallel mode, when the engine torque and the engine request torque are lower than a threshold, a fuel cut-off command is sent to the engine to perform passive regeneration control on the GPF.

[0011] Furthermore, the above-mentioned strong hybrid vehicle GPF regeneration control method, wherein the method also includes: When the vehicle satisfies the requirement of not responding to the regeneration request, not responding to the regeneration request of the vehicle; The non-response to the regeneration request is one of the following: the GPF carbon load is lower than a threshold, the vehicle speed is greater than a threshold, and the battery pack remaining power percentage is lower than a threshold.

[0012] Another object of the present invention is to provide a GPF regeneration control device for a strong hybrid vehicle, which is applied to a hybrid controller of the vehicle, and the device comprises: an acquisition module, used for acquiring a GPF carbon load sent by the engine of the vehicle, and determining whether the GPF carbon load is greater than a GPF carbon load threshold; A first judgment module, configured to judge whether the vehicle speed is greater than a vehicle speed threshold when it is judged that the GPF carbon load is greater than a GPF carbon load threshold; A second judgment module is used to judge whether the remaining power percentage of the battery pack of the vehicle is within a preset range when it is judged that the vehicle speed is greater than the vehicle speed threshold; The control module is used to determine whether the throttle opening of the vehicle is zero when it is determined that the remaining power percentage of the battery pack of the vehicle is within a preset range, and to regenerate the GPF using a corresponding regeneration method according to the judgment result of the throttle opening.

[0013] Another object of the present invention is to provide an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the program.

[0014] The present invention obtains the GPF carbon load sent by the vehicle's engine to determine whether the GPF carbon load is greater than the GPF carbon load threshold; if so, it determines whether the vehicle speed is greater than the vehicle speed threshold; when it is determined that the vehicle speed is greater than the vehicle speed threshold, it determines whether the percentage of remaining power in the vehicle's battery pack is within a preset range; if so, it determines whether the vehicle's throttle opening is zero, and uses a corresponding regeneration method to regenerate the GPF according to the throttle opening judgment result, and determines the entry and exit of GPF regeneration by judging the percentage of remaining power in the battery pack, thereby ensuring the regeneration efficiency, ensuring that the battery pack will not be overcharged, and ensuring that the whole vehicle will not have engine start-up and flameout beyond the driver's expectation when the GPF is regenerated, thereby ensuring the drivability and smoothness of the whole vehicle. The problem of poor effect in the prior art when performing GPF regeneration control on a strong hybrid vehicle is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a flow chart of a GPF regeneration control method for a strong hybrid vehicle in a first embodiment of the present invention; Figure 2 1 is a structural block diagram of a GPF regeneration control device for a strong hybrid vehicle in a third embodiment of the present invention.

[0016] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0017] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0020] Embodiment 1 See also Figure 1 , shown is a GPF regeneration control method for a strong hybrid vehicle in a first embodiment of the present invention, which is applied to a hybrid controller of a vehicle, and the method includes steps S10 to S13.

[0021] Step S10, obtaining the GPF carbon load sent by the engine of the vehicle, and determining whether the GPF carbon load is greater than a GPF carbon load threshold.

[0022] Among them, the HCU (hybrid control unit) allows the GPF (gasoline particulate filter) carbon load signal value sent by the engine to enter the regeneration condition when it is greater than the threshold.

[0023] Step S11: If yes, determine whether the vehicle speed is greater than a speed threshold.

[0024] Among them, the HCU judges the vehicle speed condition. When the vehicle speed is greater than the threshold, it is allowed to enter the regeneration condition. The purpose of this condition is to avoid regeneration under low speed conditions, because it increases the engine load, the drivability in the low speed range is poor, and the noise is large.

[0025] Step S12, when it is determined that the vehicle speed is greater than the vehicle speed threshold, it is determined whether the remaining power percentage of the battery pack of the vehicle is within a preset range.

[0026] Among them, the HCU determines whether the SOC range is within a reasonable range. When entering for the first time, the SOC only needs to be less than the calibrated maximum value. As the active regeneration proceeds, the SOC will inevitably rise due to the increase in engine load. When the calibrated maximum value is reached, it is necessary to return to a smaller SOC calibrated value before allowing regeneration again.

[0027] Specifically, the speed of the vehicle is obtained, and the corresponding preset range of the remaining battery power percentage of the battery pack is found in the preset mapping table according to the speed of the vehicle, wherein the calibrated maximum value and calibrated minimum value of the remaining battery power percentage of the battery pack are obtained by looking up the table according to the vehicle speed. The purpose of this is to protect the battery pack from overcharging, and secondly, to have enough SOC range to support regeneration as much as possible, to avoid frequent entry and exit of regeneration in a short period of time, resulting in poor driving performance of the whole vehicle. Exemplarily, the preset mapping table is shown in Table 1 below.

[0028] Table 1

[0029] Among them, the principle of making the above mapping table is to match the engine start-stop strategy based on SOC of the whole vehicle. The higher the vehicle speed, the higher the SOC for entering and exiting should be, so as to make the engine start-stop during GPF regeneration not abrupt and not exceed the driver's expectations.

[0030] Step S13: If yes, determine whether the throttle opening of the vehicle is zero, and adopt a corresponding regeneration method to regenerate the GPF according to the determination result of the throttle opening.

[0031] Specifically, when the above three conditions of carbon load, battery pack remaining power percentage and vehicle speed are met, regeneration conditions are allowed, that is, GPF regeneration control can be performed.

[0032] In summary, the present invention obtains the GPF carbon load sent by the vehicle's engine to determine whether the GPF carbon load is greater than the GPF carbon load threshold; if so, determine whether the vehicle speed is greater than the vehicle speed threshold; when it is determined that the vehicle speed is greater than the vehicle speed threshold, determine whether the percentage of remaining power in the vehicle's battery pack is within a preset range; if so, determine whether the vehicle's throttle opening is zero, and use the corresponding regeneration method to regenerate the GPF according to the throttle opening judgment result, and determine the entry and exit of GPF regeneration by judging the percentage of remaining power in the battery pack, thereby ensuring the regeneration efficiency, ensuring that the battery pack will not be overcharged, and ensuring that the whole vehicle will not have engine start-up and flameout beyond the driver's expectations when the GPF is regenerated, thereby ensuring the drivability and smoothness of the whole vehicle. The problem of poor effect in the prior art when performing GPF regeneration control on a strong hybrid vehicle is solved.

[0033] Embodiment 2 This embodiment also proposes a GPF regeneration control method for a strong hybrid vehicle. The GPF regeneration control method for a strong hybrid vehicle in this embodiment is different from the GPF regeneration control method for a strong hybrid vehicle in the first embodiment in that: The step of controlling the GPF to regenerate using a corresponding regeneration method according to the throttle opening judgment result comprises: When the throttle opening of the vehicle is not zero, obtaining the current mode of the vehicle; When the vehicle is in series mode, performing corresponding series active regeneration on the GPF; When the vehicle is in parallel mode, the GPF is actively regenerated in parallel; Among them, the series mode is that the engine and the generator cooperate to generate electricity to charge the battery pack and supply the drive motor, and the parallel mode is that the engine directly drives the wheel end.

[0034] Specifically, the HCU determines the driver's throttle opening. When the throttle opening is not zero, that is, when the accelerator is pressed, the vehicle responds to the GPF active regeneration control, increases the engine torque speed when the vehicle's working mode is series, and increases the engine torque when the vehicle's working mode is parallel. At the same time, it ensures that its torque speed is within a reasonable range, does not exceed the capacity of the engine and generator, and does not affect the vehicle's drivability too much.

[0035] In addition, when the driver does not step on the accelerator, the HCU must determine whether the GPF carrier temperature is greater than the threshold, because when the GPF temperature does not reach a certain value, its regeneration effect is not good; it must determine whether the SOC is greater than the calibration value, because it is a strong hybrid car, the battery pack has a small amount of power, and the whole vehicle is consuming power when the fuel is cut off during passive regeneration. If it is still regenerating when the SOC is low, the power balance cannot be maintained, and the performance of the whole vehicle will be greatly reduced, and it will also have a certain impact on the safety of the whole vehicle. It is necessary to determine whether the altitude is less than the threshold. If the altitude is too high and the oxygen content in the air is low, the efficiency of passive regeneration is very low at this time.

[0036] Specifically, the working mode of the whole vehicle is judged. Because the principles of the whole vehicle modes are different, the control strategies are somewhat different. If it is in parallel, the parallel GPF passive regeneration is performed: because the engine is directly connected to the wheel end in the parallel mode, the fuel cut-off command cannot be sent immediately when the accelerator is not pressed, because the engine torque is still at a large value at the previous moment. Cutting off the fuel within a cycle will cause the whole vehicle to shake and affect the drivability. Therefore, the patent of this invention believes that it is necessary to wait for the engine torque value and the HCU requested torque value to drop to a smaller value before issuing the fuel cut-off command, and the driving feel of the whole vehicle will be greatly improved. If in the series mode, the fuel cut-off command is sent directly when the accelerator is not pressed, because the engine is not directly connected to the wheel end, sending the fuel cut-off command directly to the engine when the accelerator is not pressed will not affect the drivability.

[0037] In addition, in some optional embodiments of the present invention, when one of the following situations occurs: the GPF carbon load is lower than a threshold, the vehicle speed is greater than a threshold, and the battery pack remaining power percentage is lower than a threshold, the vehicle's regeneration request is not responded to.

[0038] In summary, the GPF regeneration control method for a strong hybrid vehicle in the above embodiment of the present invention determines whether the GPF carbon load is greater than the GPF carbon load threshold by obtaining the GPF carbon load sent by the vehicle's engine; if so, determines whether the vehicle speed is greater than the vehicle speed threshold; when it is determined that the vehicle speed is greater than the vehicle speed threshold, determines whether the percentage of remaining power in the vehicle's battery pack is within a preset range; if so, determines whether the vehicle's throttle opening is zero, and uses a corresponding regeneration method to regenerate the GPF according to the judgment result of the throttle opening, and determines the entry and exit of the GPF regeneration by judging the percentage of remaining power in the battery pack, thereby ensuring the regeneration efficiency, ensuring that the battery pack will not be overcharged, and ensuring that the whole vehicle will not have engine start-up and flameout beyond the driver's expectation when the GPF is regenerated, thereby ensuring the drivability and smoothness of the whole vehicle. The problem of poor effect in the prior art when performing GPF regeneration control for strong hybrid vehicles is solved.

[0039] Embodiment 3 See also Figure 2, shown is a GPF regeneration control device for a strong hybrid vehicle proposed in a third embodiment of the present invention, which is applied to a hybrid controller of a vehicle, and the device comprises: An acquisition module 100 is used to acquire a GPF carbon load sent by the engine of the vehicle, and determine whether the GPF carbon load is greater than a GPF carbon load threshold; The first judgment module 200 is used to judge whether the vehicle speed is greater than a vehicle speed threshold when it is judged that the GPF carbon load is greater than a GPF carbon load threshold; The second judgment module 300 is used to judge whether the remaining power percentage of the battery pack of the vehicle is within a preset range when it is judged that the vehicle speed is greater than the vehicle speed threshold; The control module 400 is used to determine whether the throttle opening of the vehicle is zero when it is determined that the remaining power percentage of the battery pack of the vehicle is within a preset range, and to use a corresponding regeneration method to regenerate the GPF according to the judgment result of the throttle opening.

[0040] Furthermore, in the above-mentioned GPF regeneration control device for a strong hybrid vehicle, before the step of determining whether the remaining power of the battery pack of the vehicle is within a preset range when determining that the vehicle speed is greater than the vehicle speed threshold, the step includes: The speed of the vehicle is obtained, and the corresponding preset range of the remaining power percentage of the battery pack is searched in a preset mapping table according to the speed of the vehicle.

[0041] Furthermore, in the above-mentioned GPF regeneration control device for a strong hybrid vehicle, the step of controlling the GPF regeneration by adopting a corresponding regeneration method according to the judgment result of the throttle opening comprises: When the throttle opening of the vehicle is not zero, obtaining the current mode of the vehicle; When the vehicle is in series mode, performing corresponding series active regeneration on the GPF; When the vehicle is in parallel mode, the GPF is actively regenerated in parallel; Among them, the series mode is that the engine and the generator cooperate to generate electricity to charge the battery pack and supply the drive motor, and the parallel mode is that the engine directly drives the wheel end.

[0042] Furthermore, in the above-mentioned GPF regeneration control device for a strong hybrid vehicle, the step of controlling the GPF regeneration by adopting a corresponding regeneration method according to the judgment result of the throttle opening further includes: When the throttle opening of the vehicle is zero, determining whether the vehicle currently meets the passive regeneration condition; If yes, passive regeneration control is performed on the GPF; Among them, the passive regeneration conditions are whether the remaining power percentage of the vehicle's battery pack, GPF temperature and altitude are within a preset range.

[0043] Furthermore, in the above-mentioned GPF regeneration control device for a strong hybrid vehicle, the step of passively regenerating the GPF comprises: When the mode of the vehicle is the series mode, a fuel cut-off command is sent to the engine of the vehicle to perform passive regeneration control on the GPF.

[0044] Furthermore, in the above-mentioned GPF regeneration control device for a strong hybrid vehicle, the step of passively regenerating the GPF further comprises: When the vehicle is in the parallel mode, when the engine torque and the engine request torque are lower than a threshold, a fuel cut-off command is sent to the engine to perform passive regeneration control on the GPF.

[0045] Furthermore, the above-mentioned GPF regeneration control device for a strong hybrid vehicle, wherein the device also includes: When the vehicle satisfies the requirement of not responding to the regeneration request, not responding to the regeneration request of the vehicle; The non-response to the regeneration request is one of the following: the GPF carbon load is lower than a threshold, the vehicle speed is greater than a threshold, and the battery pack remaining power percentage is lower than a threshold.

[0046] The functions or operation steps implemented when the above modules are executed are substantially the same as those in the above method embodiments, and will not be repeated here.

[0047] Embodiment 4 Another aspect of the present invention further provides a readable storage medium having a computer program stored thereon, and when the program is executed by a processor, the steps of the method described in any one of the above-mentioned embodiments 1 to 2 are implemented.

[0048] Embodiment 5 Another aspect of the present invention provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method described in any one of the above-mentioned embodiments one to two when executing the program.

[0049] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] Those skilled in the art will appreciate that the logic and / or steps represented in the flowchart or otherwise described herein, for example, may be considered as an ordered list of executable instructions for implementing logical functions, and may be specifically implemented in any computer-readable storage medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For purposes of this specification, a "computer-readable storage medium" may be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0051] More specific examples (a non-exhaustive list) of computer-readable storage media include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable storage medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0052] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or a combination thereof: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0054] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A GPF regeneration control method for a strong hybrid vehicle, characterized in that: In a hybrid controller for a vehicle, the method comprises: Obtaining a GPF carbon load sent by the engine of the vehicle, and determining whether the GPF carbon load is greater than a GPF carbon load threshold; If so, determining whether the vehicle speed is greater than a speed threshold; When it is determined that the speed of the vehicle is greater than the speed threshold, determining whether the remaining power percentage of the battery pack of the vehicle is within a preset range; If so, it is determined whether the throttle opening of the vehicle is zero, and a corresponding regeneration method is used to regenerate the GPF according to the determination result of the throttle opening.

2. The GPF regeneration control method for a strong hybrid vehicle according to claim 1, characterized in that: The step of determining whether the remaining power of the battery pack of the vehicle is within a preset range when determining that the vehicle speed is greater than the vehicle speed threshold comprises: The speed of the vehicle is obtained, and the corresponding preset range of the remaining power percentage of the battery pack is searched in a preset mapping table according to the speed of the vehicle.

3. The GPF regeneration control method for a strong hybrid vehicle according to claim 2, characterized in that: The step of controlling the GPF to regenerate using a corresponding regeneration method according to the throttle opening judgment result comprises: When the throttle opening of the vehicle is not zero, obtaining the current mode of the vehicle; When the vehicle is in series mode, performing corresponding series active regeneration on the GPF; When the vehicle is in parallel mode, the GPF is actively regenerated in parallel; Among them, the series mode is that the engine and the generator cooperate to generate electricity to charge the battery pack and supply the drive motor, and the parallel mode is that the engine directly drives the wheel end.

4. The GPF regeneration control method for a strong hybrid vehicle according to claim 3, characterized in that: The step of controlling the GPF to regenerate using a corresponding regeneration method according to the throttle opening judgment result further includes: When the throttle opening of the vehicle is zero, determining whether the vehicle currently meets the passive regeneration condition; If yes, passive regeneration control is performed on the GPF; Among them, the passive regeneration conditions are whether the remaining power percentage of the vehicle's battery pack, GPF temperature and altitude are within a preset range.

5. The GPF regeneration control method for a strong hybrid vehicle according to claim 4, characterized in that: The step of performing passive regeneration control on the GPF comprises: When the mode of the vehicle is the series mode, a fuel cut-off command is sent to the engine of the vehicle to perform passive regeneration control on the GPF.

6. The GPF regeneration control method for a strong hybrid vehicle according to claim 5, characterized in that: The step of performing passive regeneration control on the GPF further includes: When the vehicle is in the parallel mode, when the engine torque and the engine request torque are lower than a threshold, a fuel cut-off command is sent to the engine to perform passive regeneration control on the GPF.

7. The GPF regeneration control method for a strong hybrid vehicle according to claim 1, characterized in that: The method further comprises: When the vehicle satisfies the requirement of not responding to the regeneration request, not responding to the regeneration request of the vehicle; The non-response to the regeneration request is one of the following: the GPF carbon load is lower than a threshold, the vehicle speed is greater than a threshold, and the battery pack remaining power percentage is lower than a threshold.

8. A GPF regeneration control device for a strong hybrid vehicle, characterized in that: In a hybrid controller for a vehicle, the device comprises: an acquisition module, used for acquiring a GPF carbon load sent by the engine of the vehicle, and determining whether the GPF carbon load is greater than a GPF carbon load threshold; A first judgment module, configured to judge whether the vehicle speed is greater than a vehicle speed threshold when it is judged that the GPF carbon load is greater than a GPF carbon load threshold; A second judgment module is used to judge whether the remaining power percentage of the battery pack of the vehicle is within a preset range when it is judged that the vehicle speed is greater than the vehicle speed threshold; The control module is used to determine whether the throttle opening of the vehicle is zero when it is determined that the remaining power percentage of the battery pack of the vehicle is within a preset range, and to regenerate the GPF using a corresponding regeneration method according to the judgment result of the throttle opening.

9. A storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

10. An electronic device, characterized in that: The method comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method according to any one of claims 1 to 7 when executing the program.

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