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:
Mar. 07, 2006
Filed:
Jan. 14, 2004
Sohel Anwar, Canton, MI (US);
Dean T. Wisniewski, Detroit, MI (US);
Norman Szalony, Brighton, MI (US);
Xiaohong N. Duan, Canton, MI (US);
Hualin Tan, Canton, MI (US);
Stephen Shen, Rochester Hills, MI (US);
Clive Mckenzie, Southfield, MI (US);
Hyeongcheol Lee, Ann Arbor, MI (US);
Sohel Anwar, Canton, MI (US);
Dean T. Wisniewski, Detroit, MI (US);
Norman Szalony, Brighton, MI (US);
Xiaohong N. Duan, Canton, MI (US);
Hualin Tan, Canton, MI (US);
Stephen Shen, Rochester Hills, MI (US);
Clive McKenzie, Southfield, MI (US);
Hyeongcheol Lee, Ann Arbor, MI (US);
Automotive Components Holdings LLC, Dearborn, MI (US);
Abstract
This invention describes a control method for a hydraulic coupling system that includes pressurizing a fluid in an actuator coupled to a multi-disk clutch pack to engage the clutch pack, pumping the fluid through the clutch pack to cool the clutch pack, and controlling one or more valve actuators and one or more pump-motors with a controller. The control method may incorporate pulse width modulation of the actuators, such as the actuators for the pump-motor and valve.