Method and system for managing a regeneration of a particulate filter

A particle filter and regeneration process technology, which is applied in the direction of electronic control of exhaust gas treatment device, diagnostic device of exhaust gas treatment device, exhaust gas treatment, etc. Achieve the effect of extending the replacement interval and reducing the impact

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  • Abstract
  • Description
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Problems solved by technology

This mixing has an effect on the internal combustion engine, which can be damaged, and also has an effect on fuel consumption

Method used

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  • Method and system for managing a regeneration of a particulate filter
  • Method and system for managing a regeneration of a particulate filter
  • Method and system for managing a regeneration of a particulate filter

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Embodiment Construction

[0032] The method of the present invention is now described, which is automatically activated (1 start) when the regeneration process of the vehicle's DPF is initiated. After its activation, the method runs continuously and stops when the regeneration process is interrupted by the method.

[0033] refer to figure 1 , start the following two parallel processes: one based on the estimated temperature at the outlet of the particulate filter (process 2), and the other based on the calculated pressure difference between the inlet and outlet of the particulate filter (process 1).

[0034] The first process, indicating that the regeneration of the filter is reasonably complete, forces an interruption of the regeneration process.

[0035] According to a preferred embodiment of the invention, in case one of the two processes detects an error in the sensor on which it is based, this process is stopped without affecting the operation of the other process. This makes it possible not on...

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Abstract

Method for managing a regeneration of a particulate filter (DPF), particulate filter comprising an inlet and an outlet, the method comprising a first checking process of a first condition, a function of a differential pressure calculated between said inlet and said outlet of the particulate filter, and a second checking process of a second condition, a function of a temperature measurement at the outlet of the particulate filter, and wherein the method provides to interrupt said regeneration process when one of said first and/or second checking process gives a positive outcome.

Description

technical field [0001] The present invention relates to the field of internal combustion engines, and in particular to the management of these components to reduce pollutants. More specifically, the present invention relates to methods and systems for managing the regeneration of particulate filters. Background technique [0002] DPF filters have long been used to confine particulates produced by the combustion of internal combustion engines, particularly diesel engines. [0003] These filters are called closed filters in terms of the shape of the channels formed therein. [0004] These channels are made of a porous ceramic material in order to retain the particles contained in the gas passing through the channels. [0005] Filter clogging is detected by measuring the pressure upstream of the filter (back pressure) or by measuring the differential pressure upstream and downstream of the filter. [0006] Depending on the usage of the vehicle, the particulate filter may be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/02F01N3/025F01N9/00
CPCF01N3/0253F01N9/002F02D41/029F01N2560/08F01N2560/06F01N2900/1406F01N2900/1404F01N2900/0422F02D2200/0804F02D2200/0802F02D2200/0812Y02T10/40F01N3/021F01N11/00
Inventor 乔瓦尼·切尔切洛安杰拉·维蒂耶洛
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