A method, system and vehicle for particulate filter regeneration control in an EOL mode

Abstract

This invention relates to the field of particulate filter control, specifically disclosing a particulate filter regeneration control method, system, and vehicle in EOL mode. The method involves acquiring a first type of vehicle operating parameters; determining whether these parameters meet a first type of preset condition; if so, controlling the vehicle to enter EOL mode for regeneration control; otherwise, continuously acquiring the first type of operating parameters; acquiring a second type of vehicle operating parameters; and determining whether these parameters meet a second type of preset condition; if so, activating the particulate filter function; otherwise, continuously acquiring the second type of operating parameters. This invention enables the vehicle to activate the particulate filter's collection function in EOL mode, ensuring thorough activation, improving particulate filter collection efficiency, and guaranteeing the quality of vehicles leaving the factory.

Description

Technical Field

[0001] This invention relates to the field of particulate filter control, and specifically to a particulate filter regeneration control method, system, and vehicle in EOL mode. Background Technology

[0002] During vehicle operation, the engine generates carbon particles. To prevent these particles from being released into the atmosphere and polluting the environment, a particulate filter (DPF / SDPF) is installed in the vehicle's engine emission system. The particulate filter captures particulate matter before it enters the atmosphere, thus reducing air pollution from vehicle exhaust.

[0003] Particulate filters effectively reduce particulate matter emissions. They first capture particulate matter in exhaust gases and then oxidize the captured particles, regenerating the filter. Particulate filter regeneration refers to the process where, over long-term operation, the gradual increase in particulate matter in the filter causes increased engine back pressure, leading to decreased engine performance. Therefore, it's necessary to periodically remove deposited particulate matter to restore the filter's filtration performance. There are two methods of filter regeneration: active and passive. Active regeneration uses external energy to raise the temperature inside the filter, causing the particulate matter to ignite and burn. When the temperature inside the filter reaches 550°C, the deposited particulate matter will oxidize and burn. If the temperature doesn't reach 550°C, excessive deposits will clog the filter. In this case, external energy (such as an electric heater, burner, or changes in engine operating conditions) is needed to raise the temperature inside the DPF (Diesel Particulate Filter) to oxidize and burn the particulate matter. Passive regeneration uses fuel additives or catalysts to lower the ignition temperature of the particulate matter, allowing it to ignite and burn at normal engine exhaust temperatures.

[0004] Before leaving the factory, particulate filters typically undergo high-temperature treatment to activate their regeneration function, after which vehicle manufacturers install them on their vehicles. However, the particulate filters purchased by vehicle manufacturers may not be fully activated, leading to user feedback on abnormal particulate filter function after the vehicle leaves the factory, such as low collection efficiency, short driving range, and frequent regeneration, thus affecting the quality of vehicle use. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides a particulate filter regeneration control method, system, and vehicle in EOL mode, enabling the vehicle to activate the particulate filter's collection function in EOL mode, ensuring thorough activation of the particulate filter, improving its collection efficiency, and guaranteeing the quality of vehicles leaving the factory.

[0006] In a first aspect, the technical solution of the present invention provides a method for regenerating a particle trap in EOL mode, comprising the following steps:

[0007] S1, Obtain the first type of vehicle operating parameters;

[0008] S2, determine whether the first type of operating parameters meet the first type of preset conditions. If they do, control the vehicle to enter the EOL mode to control the regeneration condition; otherwise, continue to acquire the first type of operating parameters.

[0009] S3, obtain the second type of vehicle operating parameters;

[0010] S4. Determine whether the second type of operating parameters meet the second type of preset conditions. If they do, activate the particulate trap function; otherwise, continue to acquire the second type of operating parameters of the vehicle.

[0011] In one optional implementation, the first type of operating parameters includes the total mileage of the vehicle, the total engine operating time, and the total number of times the EOL mode control regeneration condition has been triggered.

[0012] In an optional implementation, determining whether the first type of operating parameters meets the first type of preset conditions specifically includes:

[0013] It determines whether the total mileage of the vehicle is less than a set threshold, whether the total engine running time is less than a set threshold, and whether the total number of times the EOL mode is triggered is less than a set threshold.

[0014] In one optional implementation, the second type of operating parameters includes vehicle speed, engine speed, ambient pressure, ambient temperature, coolant temperature, accelerator pedal opening, brake pedal status, clutch pedal status, parking status, and gear information.

[0015] In an optional implementation, determining whether the second type of operating parameters meets the second type of preset conditions specifically includes:

[0016] It determines whether the vehicle speed is within the set threshold, whether the engine speed is within the set range, whether the ambient pressure, ambient temperature, and coolant temperature are within their respective set ranges, whether the accelerator pedal opening is within the set threshold, whether the brake pedal and clutch pedal are in their respective set states, whether the parking function is in its set state, and whether the gear is in the set gear.

[0017] In an optional implementation, activating the particle trap function specifically includes:

[0018] When the second type of operating parameters meet the preset conditions, a prompt sound will be emitted;

[0019] Press the parking regeneration button to send the regeneration signal to the particulate filter control unit;

[0020] The particulate filter control unit triggers passive regeneration of the particulate filter to activate the particulate filter function.

[0021] Secondly, the technical solution of the present invention provides a particulate filter regeneration control system in EOL mode, comprising,

[0022] First operating parameter acquisition module: Acquires the first type of operating parameters of the vehicle;

[0023] EOL Mode Control Module: Determines whether the first type of operating parameters meet the first type of preset conditions. If they do, it controls the vehicle to enter the EOL mode control regeneration condition. Otherwise, it triggers the first operating parameter acquisition module to continuously acquire the first type of operating parameters.

[0024] Second operating parameter acquisition module: Acquires the second type of vehicle operating parameters;

[0025] Particulate filter activation module: Determines whether the second type of operating parameters meet the second type of preset conditions. If they do, the particulate filter function is activated; otherwise, the second operating parameter acquisition module is triggered to continuously acquire the second type of operating parameters of the vehicle.

[0026] In one optional implementation, the first type of operating parameters includes the total mileage driven by the vehicle, the total engine running time, and the total number of times the EOL mode has been triggered.

[0027] Determining whether the first type of operating parameters meets the first type of preset conditions specifically includes:

[0028] It determines whether the total mileage of the vehicle is less than a set threshold, whether the total engine running time is less than a set threshold, and whether the total number of times the EOL mode control regeneration condition is triggered is less than a set threshold.

[0029] In one optional implementation, the second type of operating parameters includes vehicle speed, engine speed, ambient pressure, ambient temperature, coolant temperature, accelerator pedal opening, brake pedal status, clutch pedal status, parking status, and gear information.

[0030] Determining whether the second type of operating parameters meets the second type of preset conditions specifically includes:

[0031] It determines whether the vehicle speed is within the set threshold, whether the engine speed is within the set range, whether the ambient pressure, ambient temperature, and coolant temperature are within their respective set ranges, whether the accelerator pedal opening is within the set threshold, whether the brake pedal and clutch pedal are in their respective set states, whether the parking function is in its set state, and whether the gear is in the set gear.

[0032] Thirdly, the technical solution of the present invention provides a vehicle that performs the method described in any of the above-mentioned embodiments.

[0033] This invention provides a particulate filter regeneration control method, system, and vehicle in EOL mode. Compared with existing technologies, it has the following advantages: It detects the vehicle's first type of operating parameters, and when certain conditions are met, the vehicle enters the EOL mode control and regeneration condition. Under this condition, it continues to collect the vehicle's second type of operating parameters, and when certain conditions are met, it activates the particulate filter function, thus achieving particulate filter activation. This invention activates the particulate filter's collection function in EOL mode, ensuring thorough activation, improving particulate filter collection efficiency, and guaranteeing the quality of vehicles leaving the factory. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of a particle trap regeneration control method under EOL mode provided by an embodiment of the present invention.

[0036] Figure 2 This is a schematic block diagram of a particle trap regeneration control system under EOL mode provided in an embodiment of the present invention. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present invention, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] 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.

[0039] The key terms used in this invention will be explained below.

[0040] EOL: End of Line, refers to a series of testing processes performed on automotive products after they leave the production line, with the aim of ensuring product quality.

[0041] Figure 1This is a schematic flowchart of a particle trap regeneration control method in EOL mode provided by an embodiment of the present invention, as shown below. Figure 1 As shown, the method includes the following steps.

[0042] S1, obtain the first type of vehicle operating parameters.

[0043] S2, determine whether the first type of operating parameters meet the preset conditions. If they do, control the vehicle to enter the EOL mode to control the regeneration condition; otherwise, continue to acquire the first type of operating parameters.

[0044] S3, obtain the second type of vehicle operating parameters.

[0045] S4. Determine whether the second type of operating parameters meet the preset conditions. If they do, activate the particulate trap function; otherwise, continue to acquire the second type of operating parameters of the vehicle.

[0046] The system acquires the vehicle's first type of operating parameters and determines the vehicle's current state based on these parameters. If the first type of operating parameters meet the corresponding first type of preset conditions, the vehicle is controlled to enter the EOL mode regeneration control condition, i.e., the particulate filter activation procedure under this condition is executed to detect the second type of operating parameters and control the activation of the particulate filter based on these parameters. Thus, when the first type of operating parameters meet the preset first type of conditions, it indicates that the vehicle's operating state meets the requirements for EOL mode use, allowing for EOL mode-based regeneration control to improve the performance of the particulate filter (DPF / SDPF) in the vehicle. It is understood that before using the EOL mode-based regeneration control method, the vehicle's operating parameters are typically judged internally. When the vehicle's operating parameters meet the requirements of the EOL mode-based regeneration control method, the vehicle executes the EOL mode-based regeneration control procedure. In some specific embodiments, when the vehicle's operating parameters do not meet the requirements for executing the EOL mode-based regeneration control procedure, the vehicle can use other external conditions to activate the function.

[0047] When the vehicle is running in EOL mode regeneration control mode, it is determined whether the second type of operating parameters meet the second preset condition. It is understandable that after the vehicle enters EOL mode control regeneration mode, the vehicle's operating parameters need to be continuously monitored and judged to ensure the particulate filter activation function is satisfied.

[0048] In this embodiment, when the second type of operating parameters meet the second type of preset conditions, the particulate filter function is activated via a physical switch (button). Specifically, when the second type of operating parameters meet the preset conditions, a prompt sound is emitted, reminding the driver to press the parking regeneration button, sending a regeneration signal to the particulate filter control unit. The particulate filter control unit then triggers passive regeneration of the particulate filter to activate its function. The particulate filter control unit can be an EMS (Engine-Management-System). It can be understood that if the operating parameters meet the second preset parameters, the vehicle is controlled to enter the regeneration condition determination stage. Thus, when the vehicle's operating parameters meet the second preset parameters, the vehicle performs parking regeneration in EOL mode to ensure that the particulate filter (DPF / SDPF) is activated promptly by pressing the parking regeneration button when the vehicle is at EOL (off-line).

[0049] It should be noted that the EOL mode-based regeneration control method refers to the particulate filter activating and operating in response to entering EOL mode, or the particulate filter transmitting this feedback to the vehicle, which then authorizes the particulate filter to activate regeneration in EOL mode. In this way, during vehicle operation, when the vehicle detects EOL mode, it activates the particulate filter regeneration via a physical switch (button) signal, improving the particulate filter's performance.

[0050] This embodiment determines whether to control the vehicle to enter EOL mode for regeneration based on a first type of operating parameter. If the first type of operating parameter meets the first type of preset conditions, it indicates that the vehicle's operating status meets the basic requirements for entering EOL mode for regeneration. In a specific embodiment, the first type of operating parameter includes the vehicle's total mileage, total engine operating time, and the total number of times the EOL mode for regeneration has been triggered.

[0051] Accordingly, it is determined whether the first type of operating parameters meet the first type of preset conditions, specifically including: determining whether the total mileage of the vehicle is less than a set threshold, determining whether the total engine running time is less than a set threshold, and determining whether the total number of times the EOL mode is triggered is less than a set threshold.

[0052] For example, if the total engine running time is less than 24 hours and the total vehicle mileage is less than 300 km, the vehicle status is assessed. If the total number of function triggers is less than 3, it indicates that the above conditions meet the first preset condition. At this time, the vehicle is controlled to enter EOL mode to control the regeneration condition.

[0053] In this embodiment, after the vehicle enters the EOL mode control regeneration condition, it detects whether the vehicle's second type of operating parameters meet the second type of preset conditions. If the conditions are met, the particulate filter is activated. In one specific embodiment, the second type of operating parameters includes vehicle speed, engine speed, ambient pressure, ambient temperature, coolant temperature, accelerator pedal opening, brake pedal status, clutch pedal status, parking status, and gear information.

[0054] Accordingly, it is determined whether the second type of operating parameters meet the second type of preset conditions, specifically including: determining whether the vehicle speed is at the set threshold, determining whether the engine speed is within the set range, determining whether the ambient pressure, ambient temperature, and coolant temperature are each within their respective set ranges, determining whether the accelerator pedal opening is at the set threshold, determining whether the brake pedal and clutch pedal are each in their respective set states, determining whether the parking function is in the set state, and determining whether the gear is in the set gear.

[0055] For example, when the vehicle speed is 0 km / h, the engine speed is greater than 350 rpm but less than 5000 rpm, the temperature is greater than 40℃ but less than 120℃, the accelerator pedal opening is 0%, the brake and clutch pedals are idle, the parking function is engaged, and the gear is in neutral or P gear. In this way, the conditions for judging the vehicle's driving status can detect problems with corresponding vehicle components to provide feedback on the vehicle's driving status, allowing for a more accurate assessment of the vehicle's driving status and timely triggering of the particulate filter's passive regeneration to activate its function. It should be noted that the ambient temperature can be any temperature from -50℃ to 100℃, meaning the particulate filter function can be activated in all environments.

[0056] The foregoing has described in detail an embodiment of a particulate filter regeneration control method in EOL mode. Based on the particulate filter regeneration control method in EOL mode described in the above embodiment, this invention also provides a particulate filter regeneration control system in EOL mode corresponding to the method.

[0057] Figure 2 This is a schematic block diagram of a particulate filter regeneration control system in EOL mode provided by an embodiment of the present invention. In this embodiment, the particulate filter regeneration control system 200 in EOL mode can be divided into multiple functional modules according to the functions it performs, such as... Figure 2 As shown. The functional modules may include: a first operating parameter acquisition module 210, an EOL mode operating condition control module 220, a second operating parameter acquisition module 230, and a particle trap activation module 240. The module referred to in this invention is a series of computer program segments that can be executed by at least one processor and perform a fixed function, and which are stored in memory.

[0058] First operating parameter acquisition module 210: Acquires the first type of operating parameters of the vehicle.

[0059] EOL mode operating condition control module 220: Determines whether the first type of operating parameters meet the first type of preset conditions. If they do, it controls the vehicle to enter the EOL mode control regeneration condition. Otherwise, it triggers the first operating parameter acquisition module 210 to continuously acquire the first type of operating parameters.

[0060] Second operating parameter acquisition module 230: Acquires the second type of operating parameters of the vehicle.

[0061] Particle trap activation module 240: Determines whether the second type of operating parameters meet the second type of preset conditions. If they do, the particle trap function is activated. Otherwise, the second operating parameter acquisition module 230 is triggered to continuously acquire the second type of operating parameters of the vehicle.

[0062] In one optional implementation, the first type of operating parameters includes the total vehicle mileage, the total engine operating time, and the total number of times the EOL mode has been triggered. Accordingly, determining whether the first type of operating parameters meet the first type of preset conditions specifically includes: determining whether the total vehicle mileage is less than a set threshold, determining whether the total engine operating time is less than a set threshold, and determining whether the total number of times the EOL mode control regeneration condition has been triggered is less than a set threshold.

[0063] In one optional implementation, the second type of operating parameters includes vehicle speed, engine speed, ambient pressure, ambient temperature, coolant temperature, accelerator pedal opening, brake pedal state, clutch pedal state, parking state, and gear information. Accordingly, determining whether the second type of operating parameters meet the second type of preset conditions specifically includes: determining whether the vehicle speed is at a set threshold; determining whether the engine speed is within a set range; determining whether the ambient pressure, ambient temperature, and coolant temperature are each within their respective set ranges; determining whether the accelerator pedal opening is at a set threshold; determining whether the brake pedal and clutch pedal are each in their respective set states; determining whether the parking function is in a set state; and determining whether the gear is in a set gear.

[0064] The particulate filter regeneration control system in EOL mode of this embodiment is used to implement the aforementioned particulate filter regeneration control method in EOL mode. Therefore, the specific implementation of this device can be found in the embodiment section of the particulate filter regeneration control method in EOL mode above. So, the specific implementation can be referred to the description of the corresponding embodiments, and will not be described in detail here.

[0065] Furthermore, since the particulate filter regeneration control system in EOL mode of this embodiment is used to implement the aforementioned particulate filter regeneration control method in EOL mode, its function corresponds to the function of the above method, and will not be repeated here.

[0066] This embodiment also provides a vehicle that executes the particulate filter regeneration control method in EOL mode described above.

[0067] The above-disclosed embodiments are merely preferred embodiments of the present invention, but the present invention is not limited thereto. Any non-creative variations that can be conceived by those skilled in the art, as well as any improvements and modifications made without departing from the principles of the present invention, should fall within the protection scope of the present invention.

Claims

1. A method for controlling the regeneration of a particulate filter in EOL mode, characterized in that, Includes the following steps: S1, Obtain the first type of vehicle operating parameters; S2, determine whether the first type of operating parameters meet the first type of preset conditions. If they do, control the vehicle to enter the EOL mode to control the regeneration condition; otherwise, continue to acquire the first type of operating parameters. S3, obtain the second type of vehicle operating parameters; S4. Determine whether the second type of operating parameters meet the second type of preset conditions. If they do, activate the particulate trap function; otherwise, continue to acquire the second type of operating parameters of the vehicle.

2. The particulate filter regeneration control method in EOL mode according to claim 1, characterized in that, The first category of operating parameters includes the total mileage of the vehicle, the total engine running time, and the total number of times the EOL mode control regeneration condition has been triggered.

3. The particulate filter regeneration control method in EOL mode according to claim 2, characterized in that, Determining whether the first type of operating parameters meets the first type of preset conditions specifically includes: It determines whether the total mileage of the vehicle is less than a set threshold, whether the total engine running time is less than a set threshold, and whether the total number of times the EOL mode is triggered is less than a set threshold.

4. The particulate filter regeneration control method in EOL mode according to claim 3, characterized in that, The second category of operating parameters includes vehicle speed, engine speed, ambient pressure, ambient temperature, coolant temperature, accelerator pedal opening, brake pedal status, clutch pedal status, parking status, and gear information.

5. The particulate filter regeneration control method in EOL mode according to claim 4, characterized in that, Determining whether the second type of operating parameters meets the second type of preset conditions specifically includes: It determines whether the vehicle speed is within the set threshold, whether the engine speed is within the set range, whether the ambient pressure, ambient temperature, and coolant temperature are within their respective set ranges, whether the accelerator pedal opening is within the set threshold, whether the brake pedal and clutch pedal are in their respective set states, whether the parking function is in its set state, and whether the gear is in the set gear.

6. The particulate filter regeneration control method under EOL mode according to any one of claims 1-5, characterized in that, Activating the particle trap function specifically includes: When the second type of operating parameters meet the preset conditions, a prompt sound will be emitted; Press the parking regeneration button to send the regeneration signal to the particulate filter control unit; The particulate filter control unit triggers passive regeneration of the particulate filter to activate the particulate filter function.

7. A particulate matter collector regeneration control system in EOL mode, characterized in that, include, First operating parameter acquisition module: Acquires the first type of operating parameters of the vehicle; EOL Mode Control Module: Determines whether the first type of operating parameters meet the first type of preset conditions. If they do, it controls the vehicle to enter the EOL mode control regeneration condition. Otherwise, it triggers the first operating parameter acquisition module to continuously acquire the first type of operating parameters. Second operating parameter acquisition module: Acquires the second type of vehicle operating parameters; Particulate filter activation module: Determines whether the second type of operating parameters meet the second type of preset conditions. If they do, the particulate filter function is activated; otherwise, the second operating parameter acquisition module is triggered to continuously acquire the second type of operating parameters of the vehicle.

8. The particulate filter regeneration control system in EOL mode according to claim 7, characterized in that, The first category of operating parameters includes the total mileage of the vehicle, the total engine running time, and the total number of times the EOL mode has been triggered. Determining whether the first type of operating parameters meets the first type of preset conditions specifically includes: It determines whether the total mileage of the vehicle is less than a set threshold, whether the total engine running time is less than a set threshold, and whether the total number of times the EOL mode control regeneration condition is triggered is less than a set threshold.

9. The particulate filter regeneration control system in EOL mode according to claim 8, characterized in that, The second category of operating parameters includes vehicle speed, engine speed, ambient pressure, ambient temperature, coolant temperature, accelerator pedal opening, brake pedal status, clutch pedal status, parking status, and gear information. Determining whether the second type of operating parameters meets the second type of preset conditions specifically includes: It determines whether the vehicle speed is within the set threshold, whether the engine speed is within the set range, whether the ambient pressure, ambient temperature, and coolant temperature are within their respective set ranges, whether the accelerator pedal opening is within the set threshold, whether the brake pedal and clutch pedal are in their respective set states, whether the parking function is in its set state, and whether the gear is in the set gear.

10. A vehicle, characterized in that, Perform the method according to any one of claims 1-6.

Images