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:
Apr. 25, 2017
Filed:
Nov. 11, 2014
Applicant:
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Inventors:
Assignee:
ZF Friedrichshafen AG, Friedrichshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 61/02 (2006.01); F16H 61/00 (2006.01); F02D 17/04 (2006.01);
U.S. Cl.
CPC ...
F16H 61/0025 (2013.01); F16H 61/0021 (2013.01); F02D 17/04 (2013.01); F16H 2061/0034 (2013.01); F16H 2312/14 (2013.01); Y10T 477/688 (2015.01);
Abstract
A method is provided for reducing the reaction time of an automatic transmission of a motor vehicle, the vehicle having a hydraulic control unit with a pressure regulator, from an engine stop of an automatic start-stop mechanism. The oil volume that is still present in the hydraulic control unit (HCU) of the transmission prior to the stopping of the internal combustion engine is used for the supply of oil for the actuation of the shifting elements of the transmission upon an engine start.