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. 12, 2013
Filed:
Dec. 09, 2010
Steven P. Moorman, Dexter, MI (US);
John R. Czoykowski, Grosse Pointe Park, MI (US);
Chinar S. Ghike, Livonia, MI (US);
Steven P. Moorman, Dexter, MI (US);
John R. Czoykowski, Grosse Pointe Park, MI (US);
Chinar S. Ghike, Livonia, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A hydraulic control system for a transmission includes a first source of pressurized hydraulic fluid for providing a first flow of hydraulic fluid, a second source of pressurized hydraulic fluid for providing a second flow of hydraulic fluid, and a torque converter control subsystem for controlling a torque converter and a torque converter clutch. The torque converter control subsystem includes a torque converter control valve and a solenoid. The solenoid is multiplexed to the torque converter control valve and the torque converter clutch. The torque converter control valve is operable to control a flow of hydraulic fluid to the torque converter and to other subsystems within the hydraulic control system.