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. 30, 2014
Filed:
May. 24, 2011
Kumaraswamy V. Hebbale, Troy, MI (US);
Farzad Samie, Franklin, MI (US);
Chunhao J. Lee, Troy, MI (US);
Dongxu LI, Warren, MI (US);
Andrew L. Bartos, Clarkston, MI (US);
Chi-kuan Kao, Troy, MI (US);
Kevin B. Rober, Washington, MI (US);
Kumaraswamy V. Hebbale, Troy, MI (US);
Farzad Samie, Franklin, MI (US);
Chunhao J. Lee, Troy, MI (US);
Dongxu Li, Warren, MI (US);
Andrew L. Bartos, Clarkston, MI (US);
Chi-Kuan Kao, Troy, MI (US);
Kevin B. Rober, Washington, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A dry dual clutch transmission includes at least one hydraulic component and a pilot valve operably connected to the hydraulic component to actuate the hydraulic component. The pilot valve includes a Micro-Electro-Mechanical Systems (MEMS) based pressure differential actuator valve. The hydraulic component may include but is not limited to a first clutch and a second clutch of the dry dual clutch transmission, an on/off solenoid, a line pressure control valve or a synchronizing shift fork.