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. 01, 2014
Filed:
Jun. 21, 2012
Eric E. Krueger, Chelsea, MI (US);
Michael C. Roberts, Auburn Hills, MI (US);
Kevin S. Kidston, New Hudson, MI (US);
Paul A. Kilmurray, Wixom, MI (US);
Eric E. Krueger, Chelsea, MI (US);
Michael C. Roberts, Auburn Hills, MI (US);
Kevin S. Kidston, New Hudson, MI (US);
Paul A. Kilmurray, Wixom, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A vehicle brake system and method designed to maximize the contributions from a regenerative braking system, yet still provide adequate safety measures that address potential regenerative braking failure. According to one embodiment, the method determines both a requested deceleration from the driver and an actual deceleration experienced by the vehicle, and uses the difference between these two values to calculate a deceleration error that can be integrated over time and compared to an error threshold. If the integrated or accumulated deceleration error surpasses the error threshold, then the method may reduce or disable the regenerative braking system until it can confirm that it is operating properly.