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:
May. 14, 2013
Filed:
Feb. 12, 2010
Rainer Grundler, Bodman-Ludwigshafen, DE;
Thilo Schmidt, Meckenbeuren, DE;
Christian Popp, Kressbronn, DE;
Heinrich Zeller, Friedrichshafen, DE;
Rainer Grundler, Bodman-Ludwigshafen, DE;
Thilo Schmidt, Meckenbeuren, DE;
Christian Popp, Kressbronn, DE;
Heinrich Zeller, Friedrichshafen, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
An automatic vehicle transmission comprises a first oil supply unit () with at least one mechanically driven first pump () and a second oil supply unit () with at least one electrically driven second pump (), and a valve device () and a clutch system (). The second oil supply unit () supplies the clutch system (), during a first operating condition, and the first oil supply unit () supplies the clutch system (), during a second operating condition.