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:
Nov. 18, 2014
Filed:
Jun. 23, 2011
Chunhao J. Lee, Troy, MI (US);
Farzad Samie, Franklin, MI (US);
Chi-kuan Kao, Troy, MI (US);
Kumaraswamy V. Hebbale, Troy, MI (US);
Dongxu LI, Warren, MI (US);
Andrew L. Bartos, Clarkston, MI (US);
Kevin B. Rober, Washington, MI (US);
Chunhao J. Lee, Troy, MI (US);
Farzad Samie, Franklin, MI (US);
Chi-Kuan Kao, Troy, MI (US);
Kumaraswamy V. Hebbale, Troy, MI (US);
Dongxu Li, Warren, MI (US);
Andrew L. Bartos, Clarkston, MI (US);
Kevin B. Rober, Washington, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A pressure and flow control system for a dog clutch includes a pilot valve, a regulating valve, and a selector. The pilot valve is configured to produce a pilot signal and includes a first valve, which is a MEMS microvalve. The regulating valve is in fluid communication with the pilot valve, and is configured to receive the pilot signal. The regulating valve is further configured to output a control signal. The selector is configured to engage and disengage the dog clutch in response to the control signal.