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Method and system for managing regeneration of particulate filters

A particle filter and regeneration process technology, applied in the electronic control of exhaust treatment devices, diagnostic devices of exhaust treatment devices, exhaust treatment, etc., can solve the problems of fuel consumption impact, internal combustion engine damage, impact, etc. Achieve the effect of extending the replacement interval and reducing the impact

Active Publication Date: 2022-02-25
FPT IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 regeneration of particulate filters
  • Method and system for managing regeneration of particulate filters
  • Method and system for managing regeneration of particulate filters

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Embodiment Construction

[0031] 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.

[0032] 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).

[0033] The first process, indicating that the regeneration of the filter is reasonably complete, forces an interruption of the regeneration process.

[0034] 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

A method for managing the regeneration of a particulate filter (DPF) comprising an inlet and an outlet, the method comprising a first checking process with respect to a first condition and a second checking process with respect to a second condition, wherein the first One condition is a function of the calculated pressure difference between said inlet and said outlet of the particulate filter, the second condition is a function of the temperature measured at the outlet of the particulate filter, and wherein the method The regeneration process is interrupted when one of the first checking process and / or the second checking process gives a positive result.

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 Patents(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
Owner FPT IND
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