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. 29, 2012
Filed:
Jan. 24, 2008
Karl Andrew Sime, Mason, MI (US);
Karl Andrew Sime, Mason, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method of controlling an auxiliary pump for use with a transmission in a vehicle is provided, the vehicle having a system voltage/current. The method comprises: determining an optimal auxiliary pump start voltage/current; determining if the system voltage/current is less than the optimal auxiliary pump start voltage/current; if yes, determining if the auxiliary pump is in a start-mode and if a predetermined override condition has been met; determining if the actual auxiliary pump speed is less than a desired auxiliary pump speed if the auxiliary pump is in the start-mode; if not, determining if the auxiliary pump is in an on-state; and, increasing an actual auxiliary pump voltage/current to equal the optimal auxiliary pump start voltage/current if the actual auxiliary pump speed is less than the desired auxiliary pump speed or the predetermined override condition has been met.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile