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:
Jul. 16, 2013
Filed:
Feb. 17, 2011
Jy-jen F. Sah, West Bloomfield, MI (US);
Robert L. Morris, Milford, MI (US);
Pinaki Gupta, Wixom, MI (US);
Gil J. Mendoza, Novi, MI (US);
Jy-Jen F. Sah, West Bloomfield, MI (US);
Robert L. Morris, Milford, MI (US);
Pinaki Gupta, Wixom, MI (US);
Gil J. Mendoza, Novi, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method for controlling a hybrid electric vehicle having a control system, a traction motor, and an engine includes generating an activation signal during a predetermined vehicle maneuver. The predetermined vehicle maneuver is a threshold hard braking maneuver on a surface having a low coefficient of friction. The method also includes processing the activation signal using the control system, and using the traction motor to command an injection or a passing of a feed-forward torque to the driveline of the vehicle. The feed-forward torque is in the same direction as the engine torque, and prevents a drive shaft of the engine from spinning in reverse during the maneuver. The method may include generating the activation signal in response to detecting an active state of the ABS controller. A hybrid electric vehicle includes an engine, a traction motor, and a control system configured to execute the above method.