A control method and system for vehicle particulate filter regeneration

Abstract

The application provides a kind of vehicle particle trap regeneration control method and system, by obtaining current particle information, and ECU application layer in flag information, and according to particle information, judge whether particle trap needs active regeneration, if yes, update the flag information in ECU application layer, control ECU will be sent to HCU after the flag information of update, and respond, generate response flag information and corresponding target parameter, then response flag information is fed back to ECU, simultaneously, ECU is called according to response flag information corresponding is target parameter, and generates control signal, control signal is used to control the active regeneration activity of particle trap, specifically, because the above-mentioned GPF regeneration control signal interaction method between ECU and HCU, can effectively solve the problem that GPF cannot be regenerated for a long time on hybrid vehicle due to hybrid strategy, and then appear the problem of blockage and failure phenomenon.

Description

Technical Field

[0001] This invention belongs to the technical field of vehicle particulate filter regeneration control, specifically relating to a control method and system for vehicle particulate filter regeneration. Background Technology

[0002] With the development of society, automobiles have become an indispensable means of transportation for people. In order to treat automobile exhaust, many models are now equipped with particulate filters, which can protect the environment to a certain extent.

[0003] Currently, the regeneration control of the Gasoline Particulate Filter (GPF) in traditional gasoline vehicles is entirely controlled by the engine's electronic control unit (ECU), and the overall strategy does not meet the GPF control requirements of hybrid vehicles. Specifically, the regeneration methods of the particulate filter in traditional gasoline vehicles include passive regeneration and active regeneration. Passive regeneration involves the control system adjusting the oxygen-enriched conditions within the aftertreatment system when the exhaust temperature exceeds the ignition point of the carbon particles. The carbon particles in the GPF then burn at a certain rate, decomposing into gaseous CO2 and being discharged. Active regeneration involves activating active regeneration control when the mass of the particulate particles in the particulate filter exceeds a certain range. The control method involves the system delaying ignition and controlling a leaner air-fuel ratio when the engine is operating at a suitable condition for GPF regeneration (speed and load), increasing the exhaust temperature of the aftertreatment system and providing oxygen-enriched conditions, allowing the carbon particles to undergo oxidation and be discharged as gaseous CO2.

[0004] However, in hybrid electric vehicles (HEVs), especially strong hybrids, the engine's operating range is not fixed and depends on the control strategy of the upper-level controller (Hybrid Control Unit, HCU). This can cause the GPF to be unable to find suitable conditions for regeneration, failing to regenerate when needed, or even becoming clogged, affecting the normal use of the vehicle. Summary of the Invention

[0005] Based on this, the present invention provides a control method and system for the regeneration of a vehicle particulate filter, which aims to solve the problem in the prior art that the GPF cannot be regenerated for a long time in hybrid vehicles due to the hybrid strategy, resulting in blockage and other failures.

[0006] A first aspect of this invention provides a control method for regenerating a vehicle particulate filter, applied in a vehicle having an ECU and an HCU, the method comprising:

[0007] Obtain current particle information and flag information in the ECU application layer, and determine whether the particle trap needs to be actively regenerated based on the particle information.

[0008] If so, update the flag information in the ECU application layer and control the ECU to send the updated flag information to the HCU;

[0009] Based on the updated flag information, control the HCU to respond and generate response flag information and corresponding target parameters;

[0010] The control HCU feeds back the response flag information to the ECU. At the same time, the ECU calls the corresponding target parameters according to the response flag information and generates a control signal. The control signal is used to control the active regeneration activity of the particle trap.

[0011] Furthermore, the flag information includes active regeneration request flag information, active regeneration level flag information, and regeneration status flag information. The active regeneration request flag information includes an active regeneration request flag and its corresponding code, the active regeneration level flag information includes an active regeneration level flag and its corresponding code, and the regeneration status flag information includes a regeneration status flag and its corresponding code.

[0012] Furthermore, the step of updating the flag information in the ECU application layer and controlling the ECU to send the updated flag information to the HCU includes:

[0013] Obtain the regeneration status of the particulate filter and determine whether the particulate filter has started regeneration;

[0014] If not, obtain the request code and the regeneration not started status code, assign the request code to the active regeneration request flag bit to obtain the updated active regeneration request flag bit sub-information, and assign the regeneration not started status code to the regeneration status flag bit to obtain the updated regeneration status flag bit information.

[0015] Based on the particle information, the target active regeneration level is determined. Based on the target active regeneration level, the corresponding active regeneration level code is obtained, and the active regeneration level code is assigned to the active regeneration level flag bit to obtain the updated active regeneration level flag bit sub-information.

[0016] The control ECU sends the updated flag information to the HCU.

[0017] Furthermore, the step of controlling the HCU to respond based on the updated flag information and generating response flag information and corresponding target parameters includes:

[0018] Based on the updated flag information, determine whether to issue a positive response;

[0019] If so, obtain the positive response code and assign the positive response code to the response flag bit to obtain the response flag bit information with a positive response;

[0020] Obtain the updated active regeneration level flag position information, and match the corresponding target parameters based on the updated active regeneration level flag position information. The target parameters include at least torque parameters and speed parameters.

[0021] If not, obtain the negative response code and assign the negative response code to the response flag bit to obtain the response flag bit information with a negative response.

[0022] Furthermore, the control HCU feeds back the response flag information to the ECU, and the ECU calls the corresponding target parameter based on the response flag information and generates a control signal, including the following steps:

[0023] Retrieve the response code from the response flag information and determine whether the response code in the response flag information is a positive response code;

[0024] If so, obtain the regeneration started status code and assign the regeneration started status code to the regeneration status flag bit;

[0025] If not, then execute the step of updating the flag information in the ECU application layer and controlling the ECU to send the updated flag information to the HCU.

[0026] Furthermore, after the step of obtaining the regeneration status of the particulate filter and determining whether the particulate filter has started regeneration, the following steps are included:

[0027] When it is determined that the particulate filter has started regeneration, the current vehicle operating condition information is obtained, and based on the operating condition information, it is determined whether the active regeneration of the particulate filter needs to be interrupted.

[0028] If so, the HCU sends a response flag information with a negative response to the ECU. The ECU generates a corresponding first control signal based on the response flag information with a negative response. The first control signal is used to control the interruption of the active regeneration activity of the particle trap.

[0029] Obtain the regeneration not started status code, assign the regeneration not started status code to the regeneration status flag bit to obtain the updated regeneration status flag bit sub-information, and control the ECU to send the updated regeneration status flag bit sub-information to the HCU.

[0030] Furthermore, the step of obtaining the current particle information and the flag information in the ECU application layer, and determining whether the particulate filter needs active regeneration based on the particle information, includes:

[0031] Obtain current particle information, wherein the particle information includes at least carbon loading, and determine whether the carbon loading is greater than a threshold.

[0032] If so, it means the particle trap needs to be actively regenerated.

[0033] A second aspect of the present invention provides a control system for regenerating a vehicle particulate filter, applied in a vehicle having an ECU and an HCU, the system comprising:

[0034] The first judgment module is used to obtain the current particle information and the flag information in the ECU application layer, and to determine whether the particle collector needs to be actively regenerated based on the particle information.

[0035] The update module is used to update the flag information in the ECU application layer when it is determined that the particulate filter needs to be actively regenerated, and to control the ECU to send the updated flag information to the HCU.

[0036] The control module is used to control the HCU to respond based on the updated flag information, and to generate response flag information and corresponding target parameters;

[0037] The control signal generation module is used to control the HCU to feed back the response flag information to the ECU. At the same time, the ECU calls the corresponding target parameter according to the response flag information and generates a control signal. The control signal is used to control the active regeneration activity of the particle trap.

[0038] A third aspect of the present invention provides an electronic device, comprising:

[0039] One or more processors;

[0040] A storage device for storing one or more programs that, when executed by one or more processors, cause the one or more processors to implement a control method for regenerating a vehicle particulate trap as described above.

[0041] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon that, when executed by a processor, implements a control method for regenerating a vehicle particulate trap as described above.

[0042] The control method and system for regenerating a vehicle particulate filter provided in the embodiments of the present invention have the following beneficial effects:

[0043] By acquiring the current particle information and the flag information in the ECU application layer, and based on the particle information, it is determined whether the particulate filter needs to actively regenerate. If it is determined that the particulate filter needs to actively regenerate, the flag information in the ECU application layer is updated, and the ECU is controlled to send the updated flag information to the HCU. After receiving the updated flag information, the HCU responds and generates response flag information and corresponding target parameters, and then feeds the response flag information back to the ECU. At the same time, the ECU calls the corresponding target parameters according to the response flag information and generates a control signal. The control signal is used to control the active regeneration activity of the particulate filter. Specifically, due to the above-mentioned GPF regeneration control signal interaction method between the ECU and HCU, the problem of GPF failure in hybrid vehicles due to the hybrid strategy, which can lead to long-term inability to regenerate and subsequent blockage and other failure phenomena, can be effectively solved. Attached Figure Description

[0044] Figure 1 This is a flowchart illustrating the implementation of a control method for regenerating a vehicle particulate filter according to Embodiment 1 of the present invention.

[0045] Figure 2 This is a structural block diagram of a control system for regenerating a vehicle particulate filter according to Embodiment 3 of the present invention;

[0046] Figure 3 This is a structural block diagram of the electronic device in Embodiment 4 of the present invention.

[0047] The following detailed embodiments will be further described in conjunction with the above-mentioned accompanying drawings. Detailed Implementation

[0048] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of the invention are illustrated in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0049] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0051] Example 1

[0052] Please see Figure 1 , Figure 1 The diagram illustrates a control method for regenerating a vehicle particulate filter according to Embodiment 1 of the present invention. This method is applied to vehicles equipped with an ECU (Electronic Control Unit) and an HCU. The method specifically includes steps S01 to S04.

[0053] Step S01: Obtain the current particle information and the flag information in the ECU application layer, and determine whether the particle collector needs to be actively regenerated based on the particle information. If so, proceed to step S02.

[0054] Specifically, real-time particle information is acquired, including carbon loading information. Carbon loading information reflects particle mass, allowing for understanding of carbon particle accumulation. It's important to note that vehicle-mounted particulate filters (GPFs) typically have a theoretical carbon loading calculation model to predict the carbon loading within the GPF. When the predicted carbon loading exceeds a certain level, the controller can promptly initiate GPF regeneration, effectively controlling the re-combustion of accumulated carbon particles to prevent excessive carbon load buildup. During the development of the theoretical carbon loading calculation model, the actual carbon loading in the GPF needs to be determined, and the parameters of the model need to be calibrated based on this actual carbon loading to ensure that the predicted carbon loading matches the actual carbon loading or falls within a certain error range.

[0055] In this embodiment, when the real-time carbon loading is greater than the threshold, it indicates that the particulate filter needs to be actively regenerated. In addition, it is also necessary to determine the particle quality level at this time in order to prepare for accurate control of torque and speed in the future. Specifically, a mapping relationship between different carbon loading ranges and different levels can be established in advance, and each level corresponds to a preset torque and speed. When a carbon loading is determined, the carbon loading is input into the mapping model with the mapping relationship, and the corresponding level, that is, the corresponding torque and speed, is output.

[0056] More specifically, the application layer within the ECU contains flag information, including active regeneration request flag information, active regeneration level flag information, and regeneration status flag information. Specifically, the active regeneration request flag information includes an active regeneration request flag and its corresponding code; the active regeneration level flag information includes an active regeneration level flag and its corresponding code; the regeneration status flag information includes a regeneration status flag and its corresponding code; and the response flag information includes a response flag and its corresponding code. In this embodiment, the active regeneration request flag information includes the active regeneration request flag... The regeneration status flag is represented by F1, which can be either 0 or 1. When F1 is 0, it indicates no active regeneration request; when F1 is 1, it indicates the particle collector needs to perform active regeneration. The active regeneration level flag is represented by F2, which can be either 0, 1, or 2. When F2 is 0, it indicates no active regeneration request; when F2 is 1, it indicates average particle quality (lower quality level); when F2 is 2, it indicates high particle quality (higher quality level). It should be noted that if there are multiple particle quality levels, more codes can be set for F2 to match. The regeneration status flag is represented by F3, which can be either 0 or 1. When F3 is 0, it indicates the particle collector has not yet started regeneration; when F3 is 1, it indicates the particle collector is regenerating.

[0057] In step S02, the flag information in the ECU application layer is updated, and the ECU is controlled to send the updated flag information to the HCU.

[0058] Specifically, firstly, the regeneration status of the particle trap is obtained, and it is determined whether the particle trap has started regeneration. If the particle trap has not started regeneration, the request code and the regeneration not started status code are obtained. The request code is assigned to the active regeneration request flag to obtain the updated active regeneration request flag information, and the regeneration not started status code is assigned to the regeneration status flag to obtain the updated regeneration status flag information. Then, based on the particle information, the target active regeneration level is determined. Based on the target active regeneration level, the corresponding active regeneration level code is obtained, and the active regeneration level code is assigned to the active regeneration level flag to obtain the updated active regeneration level flag information. In other words, F1 is set to 1; if the particle quality is judged to be average, a normal regeneration level is sent, and F2 is set to 1; if the particle quality is judged to be high, a high regeneration level is sent, and F2 is set to 2.

[0059] Furthermore, the control ECU sends the updated flag information to the HCU via the CAN bus, that is, F1, F2, F3 and their corresponding codes are sent to the HCU.

[0060] Step S03: Based on the updated flag information, control the HCU to respond and generate response flag information and corresponding target parameters.

[0061] Specifically, the HCU is controlled to respond and generate response flag information and corresponding target parameters. The response flag information includes response flags and corresponding codes. In this embodiment, the response flag can be represented by F4. The code corresponding to F4 can be 0 or 1. When F4 is 0, it indicates that the HCU is responding positively; when F4 is 1, it indicates that the HCU is responding negatively. It should be noted that, based on the updated flag information, it is determined whether a positive response is required. If a positive response is required, a positive response code is obtained and assigned to the response flag, resulting in a positive response flag information (F4 is 0). The updated active regeneration level flag information (F2 and its corresponding code) is obtained, and the corresponding target parameters are matched based on the updated active regeneration level flag information. The target parameters include at least torque and speed parameters. At this time, the ECU performs GPF regeneration control, and F3 is set to 1. If a positive response is not required, a negative response code is obtained and assigned to the response flag, resulting in a negative response flag information (F4 is 1). At this time, the ECU maintains its original state and does not perform regeneration control; F3 is not set to 0, but it continues to send active regeneration requests.

[0062] In step S04, the HCU feeds back the response flag information to the ECU. At the same time, the ECU calls the corresponding target parameter according to the response flag information and generates a control signal. The control signal is used to control the active regeneration activity of the particle trap.

[0063] Specifically, the response code in the response flag information is obtained, and it is determined whether the response code in the response flag information is a positive response code. Understandably, the ECU receives F4 and determines whether F4 is 0. If it is, it means that the ECU needs to control the corresponding component. The ECU then calls the corresponding target parameters, i.e., the preset torque parameter and preset speed parameter, according to the response flag information, and generates a control signal. The control signal is used to control the active regeneration activity of the particulate filter. Simultaneously, the regeneration start status code is obtained and assigned to the regeneration status flag, i.e., F3 is 1. If the response code in the response flag information is not a positive response code, the flag information in the ECU application layer is updated, and the ECU is controlled to send the updated flag information to the HCU, i.e., continue sending the active regeneration request.

[0064] In summary, the control method for regenerating a vehicle particulate filter (GPF) proposed in this invention obtains current particulate information and flag information in the ECU application layer. Based on the particulate information, it determines whether the GPF needs active regeneration. If active regeneration is required, the flag information in the ECU application layer is updated, and the ECU sends the updated flag information to the HCU. Upon receiving the updated flag information, the HCU responds and generates response flag information and corresponding target parameters. It then feeds back the response flag information to the ECU. Simultaneously, the ECU calls the corresponding target parameters based on the response flag information and generates a control signal. This control signal is used to control the active regeneration activity of the particulate filter. Specifically, the GPF regeneration control signal interaction method between the ECU and HCU effectively solves the problem of GPF failure in hybrid vehicles due to prolonged inability to regenerate caused by hybrid strategies, leading to blockages and other malfunctions.

[0065] Example 2

[0066] Embodiment 2 of the present invention also provides a control method for the regeneration of a vehicle particulate filter. The difference between this method and the control method for the regeneration of a vehicle particulate filter provided in Embodiment 1 of the present invention is that, after the step of obtaining the regeneration status of the particulate filter and determining whether the particulate filter has started regeneration, the method includes:

[0067] When it is determined that the particulate filter has started regeneration, the current vehicle operating condition information is obtained. Based on the operating condition information, it is determined whether the active regeneration of the particulate filter needs to be interrupted. Specifically, the operating condition information can be information representing the current vehicle driving situation, such as engine speed and acceleration. For example, if the vehicle is currently accelerating, that is, when it needs to provide greater power, in order to ensure the user's driving experience, the active regeneration of the particulate filter needs to be stopped. That is, when it is determined that the active regeneration of the particulate filter needs to be interrupted, the HCU is controlled to send a response flag information with a negative response to the ECU, that is, F4 is set to 1 and sent to the ECU. The ECU generates a corresponding first control signal based on the response flag information with a negative response. The first control signal is used to control the interruption of the active regeneration activity of the particulate filter.

[0068] Furthermore, the regeneration not started status code is obtained, and the regeneration not started status code is assigned to the regeneration status flag bit to obtain the updated regeneration status flag bit information. The ECU is then controlled to send the updated regeneration status flag bit information to the HCU. In other words, the ECU exits regeneration and sends the regeneration status flag bit to the HCU. F3 is not set and is equal to 0.

[0069] Example 3

[0070] Embodiment 3 of the present invention provides a control system 200 for the regeneration of a vehicle particulate filter. Please refer to [link / reference]. Figure 2 This is a structural block diagram of a control system for regenerating a vehicle particulate trap provided in Embodiment 3 of the present invention. The system 200 includes:

[0071] The first judgment module 21 is used to obtain the current particle information and the flag information in the ECU application layer, and to determine whether the particle collector needs to actively regenerate based on the particle information. The flag information includes active regeneration request flag information, active regeneration level flag information, and regeneration status flag information. The active regeneration request flag information includes an active regeneration request flag and a corresponding code. The active regeneration level flag information includes an active regeneration level flag and a corresponding code. The regeneration status flag information includes a regeneration status flag and a corresponding code.

[0072] The update module 22 is used to update the flag information in the ECU application layer when it is determined that the particulate trap needs to be actively regenerated, and to control the ECU to send the updated flag information to the HCU.

[0073] The control module 23 is used to control the HCU to respond according to the updated flag information, and to generate response flag information and corresponding target parameters;

[0074] The control signal generation module 24 is used to control the HCU to feed back the response flag information to the ECU. At the same time, the ECU calls the corresponding target parameter according to the response flag information and generates a control signal. The control signal is used to control the active regeneration activity of the particle trap.

[0075] Furthermore, in some other embodiments of the present invention, the updating module 22 includes:

[0076] The first judgment unit is used to obtain the regeneration status of the particle trap and determine whether the particle trap has started regeneration.

[0077] The first assignment unit is used to, when it is determined that the particle collector has not started regeneration, acquire a request code and a regeneration not started status code, assign the request code to the active regeneration request flag bit to obtain updated active regeneration request flag bit sub-information, and assign the regeneration not started status code to the regeneration status flag bit to obtain updated regeneration status flag bit information.

[0078] The second assignment unit is used to determine the target active regeneration level based on the particle information, obtain the corresponding active regeneration level code based on the target active regeneration level, and assign the active regeneration level code to the active regeneration level flag bit to obtain the updated active regeneration level flag bit sub-information.

[0079] The first transmitting unit is used to control the ECU to send the updated flag bit information to the HCU.

[0080] Furthermore, in some other embodiments of the present invention, the control module 23 includes:

[0081] The second judgment unit is used to determine whether to make a positive response based on the updated flag information;

[0082] The third assignment unit is used to obtain a positive response code when it is determined that a positive response is being made, and to assign the positive response code to the response flag bit to obtain response flag bit information with a positive response.

[0083] The matching unit is used to obtain the updated active regeneration level flag position information and match the corresponding target parameters according to the updated active regeneration level flag position information. The target parameters include at least torque parameters and speed parameters.

[0084] The fourth assignment unit is used to obtain a negative response code when it is determined that no positive response has been made, and to assign the negative response code to the response flag bit to obtain the response flag bit information with a negative response.

[0085] Furthermore, in other embodiments of the present invention, the control signal generation module 24 includes:

[0086] The third judgment unit is used to obtain the response code in the response flag information and determine whether the response code in the response flag information is a positive response code;

[0087] The fifth assignment unit is used to obtain the regeneration started status code and assign the regeneration started status code to the regeneration status flag when the response code in the response flag information is a positive response code.

[0088] An execution unit is configured to, when it is determined that the response code in the response flag information is not a positive response code, execute the step of updating the flag information in the ECU application layer and controlling the ECU to send the updated flag information to the HCU.

[0089] Furthermore, in some other embodiments of the present invention, the updating module 22 further includes:

[0090] The fourth judgment unit is used to obtain the current vehicle operating condition information when it is determined that the particulate filter has started regeneration, and to determine whether it is necessary to interrupt the active regeneration of the particulate filter based on the operating condition information.

[0091] The control signal generation unit is used to control the HCU to send a response flag information with a negative response to the ECU when it is determined that the active regeneration of the particulate trap needs to be interrupted. The ECU generates a corresponding first control signal based on the response flag information with a negative response. The first control signal is used to control the interruption of the active regeneration activity of the particulate trap.

[0092] The second sending unit is used to acquire the regeneration not started status code, assign the regeneration not started status code to the regeneration status flag bit to obtain the updated regeneration status flag bit sub-information, and control the ECU to send the updated regeneration status flag bit sub-information to the HCU.

[0093] Furthermore, in some other embodiments of the present invention, the first determining module 21 includes:

[0094] The judgment subunit is used to obtain current particle information, wherein the particle information includes at least carbon loading, and to determine whether the carbon loading is greater than a threshold.

[0095] Example 4

[0096] In another aspect, the present invention also proposes an electronic device, please refer to [link to relevant documentation]. Figure 3 The diagram shows a structural block diagram of an electronic device in Embodiment 4 of the present invention, including a memory 20, a processor 10, and a computer program 30 stored in the memory and executable on the processor. When the processor 10 executes the computer program 30, it implements the control method for regenerating the vehicle particulate trap as described above.

[0097] In some embodiments, the processor 10 may be a central processing unit (CPU), controller, microcontroller, microprocessor or other data processing chip, used to run program code stored in memory 20 or process data, such as executing access restriction programs.

[0098] The memory 20 includes at least one type of readable storage medium, such as flash memory, hard disk, multimedia card, card-type memory (e.g., SD or DX memory), magnetic memory, magnetic disk, optical disk, etc. In some embodiments, the memory 20 can be an internal storage unit of an electronic device, such as the hard disk of the electronic device. In other embodiments, the memory 20 can also be an external storage device of the electronic device, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc. Furthermore, the memory 20 can include both internal and external storage units of the electronic device. The memory 20 can be used not only to store application software and various types of data of the electronic device, but also to temporarily store data that has been output or will be output.

[0099] It should be pointed out that, Figure 3 The structure shown does not constitute a limitation on the electronic device. In other embodiments, the electronic device may include fewer or more components than shown, or combine certain components, or have different component arrangements.

[0100] This invention also proposes a computer-readable storage medium storing a computer program that, when executed by a processor, implements the control method for regenerating a vehicle particulate trap as described above.

[0101] Those skilled in the art will understand that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequential list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can mean any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device.

[0102] More specific examples of computer-readable media (a non-exhaustive list) include: electrical connections (electronic devices) having one or more wires, portable computer disk drives (magnetic devices), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Furthermore, computer-readable media can even be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in computer memory.

[0103] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0104] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0105] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A control method for regenerating a vehicle particulate filter, applied in a vehicle equipped with an ECU and an HCU, characterized in that, The method includes: Obtain current particle information and flag information in the ECU application layer, and determine whether the particle trap needs to be actively regenerated based on the particle information. If so, update the flag information in the ECU application layer and control the ECU to send the updated flag information to the HCU; Based on the updated flag information, control the HCU to respond and generate response flag information and corresponding target parameters; The control HCU feeds back the response flag information to the ECU. At the same time, the ECU calls the corresponding target parameters according to the response flag information and generates a control signal. The control signal is used to control the active regeneration activity of the particle trap. The flag information includes active regeneration request flag information, active regeneration level flag information, and regeneration status flag information. The active regeneration request flag information includes an active regeneration request flag and a corresponding code. The active regeneration level flag information includes an active regeneration level flag and a corresponding code. The regeneration status flag information includes a regeneration status flag and a corresponding code. The step of updating the flag information in the ECU application layer and controlling the ECU to send the updated flag information to the HCU includes: Obtain the regeneration status of the particulate filter and determine whether the particulate filter has started regeneration; If not, obtain the request code and the regeneration not started status code, assign the request code to the active regeneration request flag bit to obtain the updated active regeneration request flag bit sub-information, and assign the regeneration not started status code to the regeneration status flag bit to obtain the updated regeneration status flag bit information. Based on the particle information, the target active regeneration level is determined. Based on the target active regeneration level, the corresponding active regeneration level code is obtained, and the active regeneration level code is assigned to the active regeneration level flag bit to obtain the updated active regeneration level flag bit sub-information. The control ECU sends the updated flag information to the HCU; The steps of controlling the HCU to respond based on the updated flag information and generating response flag information and corresponding target parameters include: Based on the updated flag information, determine whether to issue a positive response; If so, obtain the positive response code and assign the positive response code to the response flag bit to obtain the response flag bit information with a positive response; Obtain the updated active regeneration level flag position information, and match the corresponding target parameters based on the updated active regeneration level flag position information. The target parameters include at least torque parameters and speed parameters. If not, obtain the negative response code and assign the negative response code to the response flag bit to obtain the response flag bit information with a negative response.

2. The control method for regenerating a vehicle particulate filter according to claim 1, characterized in that, The steps of the control HCU feeding back the response flag information to the ECU, and the ECU calling the corresponding target parameters and generating a control signal based on the response flag information, include: Obtain the response code from the response flag information, and determine whether the response code from the response flag information is a positive response code; If so, obtain the regeneration started status code and assign the regeneration started status code to the regeneration status flag bit; If not, then execute the step of updating the flag information in the ECU application layer and controlling the ECU to send the updated flag information to the HCU.

3. The control method for regenerating a vehicle particulate filter according to claim 2, characterized in that, The step of obtaining the regeneration status of the particulate filter and determining whether the particulate filter has started regeneration includes: When it is determined that the particulate filter has started regeneration, the current vehicle operating condition information is obtained, and based on the operating condition information, it is determined whether the active regeneration of the particulate filter needs to be interrupted. If so, the HCU sends a response flag information with a negative response to the ECU. The ECU generates a corresponding first control signal based on the response flag information with a negative response. The first control signal is used to control the interruption of the active regeneration activity of the particle trap. Obtain the regeneration not started status code, assign the regeneration not started status code to the regeneration status flag bit to obtain the updated regeneration status flag bit sub-information, and control the ECU to send the updated regeneration status flag bit sub-information to the HCU.

4. The control method for regenerating a vehicle particulate filter according to claim 3, characterized in that, The steps of obtaining current particle information and flag information in the ECU application layer, and determining whether the particulate filter needs active regeneration based on the particle information, include: Obtain current particle information, wherein the particle information includes at least carbon loading, and determine whether the carbon loading is greater than a threshold. If so, it means the particle trap needs to be actively regenerated.

5. A control system for regenerating a vehicle particulate filter, applied in a vehicle equipped with an ECU and an HCU, characterized in that, The system is used to implement the control method for regenerating a vehicle particulate filter as described in any one of claims 1-4, the system comprising: The first judgment module is used to obtain the current particle information and the flag information in the ECU application layer, and to determine whether the particle collector needs to be actively regenerated based on the particle information. The update module is used to update the flag information in the ECU application layer when it is determined that the particulate filter needs to be actively regenerated, and to control the ECU to send the updated flag information to the HCU. The control module is used to control the HCU to respond based on the updated flag information, and to generate response flag information and corresponding target parameters; The control signal generation module is used to control the HCU to feed back the response flag information to the ECU. At the same time, the ECU calls the corresponding target parameters according to the response flag information and generates a control signal, which is used to control the active regeneration activity of the particle trap.

6. An electronic device, characterized in that, include: One or more processors; A storage device for storing one or more programs, which, when executed by one or more processors, cause the one or more processors to implement the control method for regenerating a vehicle particulate trap as described in any one of claims 1-4.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by the processor, the program implements the control method for regenerating the vehicle particulate trap as described in any one of claims 1-4.

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