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.
Patent No.:
Date of Patent:
Dec. 27, 2016
Filed:
Jul. 09, 2009
Juergen Pantring, Schwieberdingen, DE;
Ruediger Weiss, Moetzingen, DE;
Jean-marc Tonye Djon, Stuttgart, DE;
Armin Huber, Ostfildern, DE;
Karsten Kroepke, Pudong New Area, CN;
Juergen Pantring, Schwieberdingen, DE;
Ruediger Weiss, Moetzingen, DE;
Jean-Marc Tonye Djon, Stuttgart, DE;
Armin Huber, Ostfildern, DE;
Karsten Kroepke, Pudong New Area, CN;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
In a method for detecting a running internal combustion engine in a hybrid vehicle, the internal combustion engine, as a first drive unit, and a second drive unit contribute toward driving the hybrid vehicle. To determine reliably whether the internal combustion engine is running during hybrid operation, an interference signal is actively introduced into the ongoing operating sequence of the internal combustion engine, and the response of the internal combustion engine to this interference signal is evaluated. If there is no response of the internal combustion engine, it is concluded that the internal combustion engine is not operating.