Method and device for the regeneration of a particle filter arranged in the exhaust gas train of an internal combustion engine

Abstract

A method and a device for the regeneration of a particle filter, especially a diesel particle filter, arranged in the exhaust gas train of an internal combustion engine, wherein an exhaust gas stream to be cleaned is supplied to the at least one particle filter. The exhaust gas stream supplied to the at least one particle filter (3) is a raw exhaust gas stream (15) of the internal combustion engine, into which, during regeneration mode, a heated exhaust gas stream (16') at a higher temperature than the raw exhaust gas stream (15) is mixed at a point upstream of the particle filter (3) under the control of a control device and / or regeneration device, which actuates a throttle device and / or shut-off device (13) in accordance with predetermined regeneration parameters.

Description

technical field

[0001] The invention relates to a method for regenerating a particle filter arranged in an exhaust gas line (Abgastrang) of an internal combustion engine according to the preamble of claim 1 and a method for regenerating an exhaust gas of an internal combustion engine according to the preamble of claim 8 In-line particulate filter installation.

[0002] The invention relates in particular to a method and a device for regenerating a particle filter in the case of an internal combustion engine operated with an excess of air, such as a diesel or gasoline engine with direct injection, such as those used in commercial vehicles or passenger cars. Background technique

[0003] In order to minimize fine material particles, so-called particle traps or particle filters are often used in motor vehicles. A particle depositor arrangement in motor vehicles is known, for example, from EP 1072765 A2. Such particle depositors differ from particle filters in that the exhaust...

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