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:
Apr. 12, 2016
Filed:
Apr. 27, 2012
Applicant:
Patrick J. Monsere, Highland, MI (US);
Inventor:
Patrick J. Monsere, Highland, MI (US);
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60T 8/32 (2006.01); B60L 15/20 (2006.01); B60W 30/18 (2012.01); B60W 20/00 (2006.01);
U.S. Cl.
CPC ...
B60L 15/2045 (2013.01); B60L 15/2063 (2013.01); B60W 30/18063 (2013.01); B60W 20/00 (2013.01); B60W 2520/10 (2013.01); B60W 2540/12 (2013.01); B60W 2710/083 (2013.01); Y02T 10/7283 (2013.01); Y10T 477/37 (2015.01);
Abstract
A system and method for controlling creep torque in a vehicle with an electric powertrain, like a hybrid electric vehicle (HEV). The method uses a combination of driver braking intent and other vehicle conditions, such as vehicle speed, to determine when creep torque is not needed and to reduce and/or cancel it accordingly. By reducing and/or cancelling the creep torque during periods where energy is being unnecessarily expended by the electric powertrain in order to work against the brakes, the present method is able to improve the overall efficiency of the vehicle.