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:
Sep. 20, 2011
Filed:
Oct. 19, 2005
Michael Zillmer, Sickte, DE;
Matthias Holz, Lehre, DE;
Ekkehard Pott, Gifhorn, DE;
David Prochazka, Libosovice, CZ;
Michael Zillmer, Sickte, DE;
Matthias Holz, Lehre, DE;
Ekkehard Pott, Gifhorn, DE;
David Prochazka, Libosovice, CZ;
VOLKSWAGEN Aktiengesellschaft, Wolfsburg, DE;
Skoda Auto A.S., Mladá Boleslav, CZ;
Abstract
A method controls an operation of a motor vehicle equipped with a hybrid drive unit having a combustion engine and at least one electric machine that can be selectively operated as a motor or as a generator. The electric machine, when in generator mode, charges an energy store and/or supplies power to a vehicle electrical system of the motor vehicle. In generator mode, the electric machine is operated in alternating intervals, while maintaining predefined boundary conditions. In a first interval, the electric machine is operated with a first high electrical power output that is higher than an actual power consumption of the vehicle electrical system of the motor vehicle. The electric machine is switched off in a second interval. This largely prevents the electric machine from approaching operating points under light load which have a low efficiency and achieves a fuel advantage in comparison to a continuous operating mode.