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. 24, 2011
Filed:
Feb. 12, 2007
Applicant:
Wayne B. Vogel, Canton, MI (US);
Inventor:
Wayne B. Vogel, Canton, MI (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 15/00 (2006.01); B60W 10/02 (2006.01); B60W 10/04 (2006.01); F16D 25/00 (2006.01); F16D 43/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
A transmission for a hybrid vehicle including a combustion engine and an electric propulsion system may include a forward clutch assembly, a fluid chamber, a fluid supply, and a forward clutch holding valve. The forward clutch assembly may include a hydraulically actuated clutch member in communication with the fluid chamber. The forward clutch holding valve may be in communication with the fluid chamber and the fluid supply. The valve may provide communication between the fluid supply and the fluid chamber when in a first position and may seal the fluid chamber when in a second position, thereby maintaining a fixed quantity of fluid within the fluid chamber.