Patent ID: 9051861
Filing Date: 2015-06-09
Classification: F01N,Y02T,Y10S

Abstract:
1. A regeneration method for regenerating an adsorber, connected downstream of an internal combustion engine, of a motor vehicle with a hybrid drive train, wherein the internal combustion engine is operated in a phase of rich combustion for regeneration of the adsorber, wherein an engine load and/or an engine rotational speed of the internal combustion engine for the rich combustion is influenced via an electric machine which can be coupled mechanically to the internal combustion engine, comprising; a first mode where an initial operating point of the internal combustion engine which is in a range of excessively low engine load, which is unsuitable for the rich combustion, is shifted to a target operating point in an operating range which is suitable for the rich combustion by virtue of the fact that the internal combustion engine additionally drives the electric machine as a generator, and therefore the engine load is increased and further the electric machine which is operated as the generator recharges an accumulator; and a second mode where an initial operating point of the internal combustion engine which is in a range of excessively high engine load, which is unsuitable for the rich combustion, is shifted to the target operating point in the operating range by virtue of the fact that the electric machine is additionally operated as a motor in parallel with the internal combustion engine, and the engine load is therefore decreased.