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Regeneration control method and device for particle catcher and engine management system

A particle trap and engine management technology, which is applied in the field of particle traps, can solve problems such as damage, particle trap torque limitation, failure to meet the conditions for triggering active regeneration, etc., and achieve the effect of avoiding torque limitation or even damage

Active Publication Date: 2021-08-10
JIANGLING MOTORS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, the object of the present invention is to provide a regeneration control method, device, storage medium, and engine management system of a particle trap, so as to solve the problem that the existing vehicle is in a low-speed driving state for a long time, resulting in the inability to trigger active regeneration. Ultimately lead to technical problems of limited torque or even damage to the particle catcher due to clogging

Method used

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  • Regeneration control method and device for particle catcher and engine management system
  • Regeneration control method and device for particle catcher and engine management system
  • Regeneration control method and device for particle catcher and engine management system

Examples

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Effect test

Embodiment 1

[0054] see figure 2 , shows the regeneration control method of the particle trap in the first embodiment of the present invention, which can be applied in the engine management system (ESC), and the method specifically includes steps S01-step S05.

[0055] Step S01 , when the vehicle continues to run within a preset speed range for a first preset time, the current pressure difference between the inlet and outlet of the particle trap is acquired.

[0056]Wherein, the preset speed range is a low speed range, such as 10-30km / h, and the first preset time may be specifically 10-30 minutes, which means that the vehicle is in a low-speed driving state for a long time.

[0057] In addition, during specific implementation, pressure sensors can be installed at the inlet and outlet of the particle trap to respectively collect the pressure at the inlet and outlet of the particle trap, so as to obtain the current pressure between the inlet and outlet of the particle trap. differential pr...

Embodiment 2

[0067] see image 3 , shows the regeneration control method of the particle trap in the second embodiment of the present invention, which can be applied to an engine management system (ESC), and the method specifically includes steps S11 to S17.

[0068] Step S11 , when the vehicle continues to run within the preset speed range for a first preset time, the current pressure difference between the inlet and outlet of the particle trap is acquired.

[0069] Step S12, determining the current carbon load of the particle trap according to the current pressure difference.

[0070] Step S13, judging whether the current carbon load is greater than a carbon load threshold.

[0071] Among them, when it is judged that the current carbon load is greater than the carbon load threshold, which means that the DPF is clogged or about to be clogged, step S14-step S15 is performed; when it is judged that the current carbon load is not greater than the carbon load threshold, no action is taken an...

Embodiment 3

[0081] see Figure 4 , shows the regeneration control method of the particle trap in the third embodiment of the present invention, which can be applied in an engine management system (ESC), and the method specifically includes steps S21 to S27.

[0082] Step S21 , when the vehicle continues to run within the preset speed range for a first preset time, the current pressure difference between the inlet and outlet of the particle trap is acquired.

[0083] Step S22, determining the current carbon load of the particle trap according to the current pressure difference.

[0084] Step S23, judging whether the current carbon load is greater than a carbon load threshold.

[0085] Among them, when it is judged that the current carbon load is greater than the carbon load threshold, which means that the DPF is clogged or about to be clogged, step S24-step S25 is performed; when it is judged that the current carbon load is not greater than the carbon load threshold, no action is taken an...

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Abstract

The invention provides a regeneration control method and device for a particle catcher and an engine management system. The method comprises the steps that when a vehicle continuously runs within the preset speed range for the first preset time, the current pressure difference between an inlet and an outlet of the particle catcher is obtained; the current carbon load of the particle catcher is determined according to the current pressure difference; whether the current carbon load is greater than a carbon load threshold value or not is judged; if yes, prompt information of manually triggering a regeneration function is sent to a vehicle-mounted instrument, so that a user is prompted to manually trigger the regeneration function of the particle catcher; and when a request for manually triggering the regeneration function is received, the particle catcher is controlled to execute the regeneration function. When it is detected that the vehicle runs at a low speed for a long time and the carbon deposition amount of the particle catcher reaches the threshold value, the prompt information of manually triggering the regeneration function is sent to the vehicle-mounted instrument so as to prompt the user to manually trigger the regeneration function of the particle catcher, and therefore torque limiting and even damage of the particle catcher after blockage are avoided.

Description

technical field [0001] The present invention relates to the technical field of particle traps, in particular to a regeneration control method, device, storage medium and engine management system for particle traps. Background technique [0002] In accordance with national emission requirements, diesel vehicles must be equipped with a particulate filter (Diesel Particulate Filter, DPF for short). When the particles are collected to a certain extent, the normal circulation of the system can be maintained through the regeneration function of the particle catcher. [0003] At present, the vehicle's control system will develop intelligent active regeneration, that is, actively control the regeneration of the particulate filter, but active regeneration requires the temperature and oil volume of the exhaust system to reach a certain range before it can be triggered. However, in the actual driving process, the vehicle may be in a low-speed driving state for a long time (such as dri...

Claims

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Application Information

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IPC IPC(8): F01N3/023F01N11/00F01N13/00
CPCF01N3/023F01N11/00F01N13/00Y02T10/40
Inventor 辜云陈江波夏永强刘婷赵能卿彭玲
Owner JIANGLING MOTORS
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