The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 27, 2012

Filed:

May. 04, 2005
Applicants:

Matthias Holz, Lehre, DE;

Michael Zillmer, Sickte, DE;

Ekkehard Pott, Gifhorn, DE;

David Prochazka, Libosovice, CZ;

Inventors:

Matthias Holz, Lehre, DE;

Michael Zillmer, Sickte, DE;

Ekkehard Pott, Gifhorn, DE;

David Prochazka, Libosovice, CZ;

Assignees:

Volkswagen AG, Wolfsburg, DE;

Skoda Auto A.S., Mlada, CZ;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02N 11/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a method and a device for engine stop/engine start of hybrid vehicles, which includes an internal combustion engine and an electric machine which is coupled to the internal combustion engine and is selectively able to be operated regeneratively or motively, the engine speed can be detected and compared to a limit speed to initiate the stopping of the engine in a hybrid vehicle using an automatic start/stop mechanism, and if the engine speed drops to the threshold speed, the engine is stopped, the electric machine being switched over into the motive or the regenerative operation when the limit speed is reached; the electric machine assuming the limit speed, whereas the fuel supply of the internal combustion engine is shut down or remains shut down and the electric machine initiates the stopping of the internal combustion engine.


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