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Method and system for determining DPF maintenance kilometers, storage medium and equipment

A determination method, DPF technology, applied in mechanical equipment, electronic control of exhaust treatment devices, diagnostic devices of exhaust treatment devices, etc., can solve problems such as long maintenance cycle of DPF

Active Publication Date: 2022-04-08
JAINGXI ISUZU AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]Based on this, the embodiment of the present invention provides a method, system, storage medium and equipment for determining the number of DPF maintenance kilometers, aiming at solving the problem of DPF maintenance period is too long or too short

Method used

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  • Method and system for determining DPF maintenance kilometers, storage medium and equipment
  • Method and system for determining DPF maintenance kilometers, storage medium and equipment
  • Method and system for determining DPF maintenance kilometers, storage medium and equipment

Examples

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Embodiment 1

[0048] see figure 1 , figure 1 It shows a flowchart for realizing a method for determining the maintenance mileage of a DPF provided by the first embodiment of the present invention, and the method specifically includes steps S01 to S07.

[0049] Step S01, regularly obtain the working weight and mileage of the DPF.

[0050]It should be noted that the DPF adopts a split DPF, which is easy to disassemble and assemble, and the working weight of the DPF needs to be disassembled and weighed every day, and the working weight and mileage of the DPF should be recorded. Among them, the DPF needs to be kept in a hot state before each weighing (100°C~200°C) to avoid accumulation of water vapor in the DPF. After each stop, the DPF needs to be quickly removed to avoid cooling of the DPF. In addition, because the DPF is still in a hot state during disassembly and assembly, the quick release device can reduce the disassembly and assembly It is better to remove all gaskets / sensors / pipelines...

Embodiment 2

[0066] see figure 2 , figure 2 It shows the implementation flow chart of a method for determining the maintenance mileage of a DPF provided by the second embodiment of the present invention, and the method specifically includes steps S10 to S19.

[0067] In step S10, the initial weight and initial mileage of the DPF are obtained, and the vehicle is driven according to the driving requirements, which include urban driving requirements, suburban driving requirements and high-speed driving requirements.

[0068] It should be noted that before the road test, it is necessary to obtain the initial weight and mileage of the DPF, that is, to calibrate the weight and mileage of the DPF. The initial weight of the DPF loaded, 100km is the initial mileage, according to the DPF working weight and DPF initial weight obtained by subsequent measurement, the weight of the growing particles in the DPF can be calculated, and the weight of the DPF particles is used to calibrate the ECU (Electr...

Embodiment 3

[0089] On the other hand, the embodiment of the present invention provides a system 200 for determining the number of DPF maintenance kilometers, please refer to image 3 , the system includes:

[0090] Obtaining module 21, for regularly obtaining DPF working weight and mileage;

[0091] Judging module 22, used to judge whether the current DPF working weight is greater than the previous DPF working weight;

[0092] Particle growth rate calculation module 23, used for when the judging module judges that the current DPF working weight is greater than the previous DPF working weight, then subtract the previous DPF working weight from the current DPF working weight, and divide by the current DPF working weight The difference between the driving mileage and the previous driving mileage is used to obtain the growth rate of particulate matter;

[0093] Circular judging module 24, when the judging module judges that the current DPF working weight is less than the previous DPF workin...

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Abstract

The invention provides a DPF maintenance mileage determination method and system, a storage medium and equipment, and the method comprises the steps: regularly obtaining the working weight and the driving mileage of a DPF, comparing the two adjacent working weights of the DPF, if the working weight of the DPF is judged to be increased, indicating that particles in the DPF are accumulated, and if the working weight of the DPF is not increased, indicating that the particles in the DPF are accumulated. The increasing rate of the particulate matter can be calculated according to the working weight of the DPF and the driving mileage, if it is judged that the working weight of the DPF is gradually decreased, it is indicated that DPF regeneration occurs, namely, the particulate matter in the DPF is cleaned, and after the working weight of the DPF is gradually decreased, the regeneration efficiency of the DPF can be obtained according to the maximum working weight of the DPF and the minimum working weight of the DPF in the complete regeneration process. And the vehicle maintenance mileage can be determined according to the particulate matter accumulation weight threshold value, the particulate matter growth rate, the DPF regeneration efficiency and the interval mileage of two adjacent complete regeneration processes. The method provided by the invention can solve the problem that the maintenance period of the DPF is too long or too short in the prior art.

Description

technical field [0001] The invention belongs to the technical field of a particle catcher DPF, and in particular relates to a method, system, storage medium and equipment for determining the maintenance mileage of a DPF. Background technique [0002] At present, with the upgrading of vehicle emission regulations, diesel engines gradually adopt DPF (diesel particulate filter) technology to filter particulate matter in engine emissions. When the accumulated carbon particles reach a certain value, it is necessary to regenerate and dispose of these accumulated carbon particles, but with the long-term operation of the engine, there will always be some carbon particles or ash generated after the carbon particles are burned, remaining in the DPF, and it is difficult to Automatically cleared, these substances occupy the space of DPF to store carbon particles, affect the judgment of regeneration time, not only easily lead to frequent regeneration, accelerate post-processing aging, bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N9/00F01N11/00
CPCY02T10/40
Inventor 刘宇李江兵代士青张海冲赵挺
Owner JAINGXI ISUZU AUTOMOBILE CO LTD