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:
Nov. 02, 2010
Filed:
May. 08, 2006
Goro Tamai, West Bloomfield, MI (US);
William L. Aldrich, Iii, Davisburg, MI (US);
Birendra P. Bhattarai, Novi, MI (US);
Donald D. Crites, Washington, MI (US);
Tony T. Hoang, Warren, MI (US);
Goro Tamai, West Bloomfield, MI (US);
William L. Aldrich, III, Davisburg, MI (US);
Birendra P. Bhattarai, Novi, MI (US);
Donald D. Crites, Washington, MI (US);
Tony T. Hoang, Warren, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
The method of the present invention provides a variety of vehicle performance characteristics depending on the mode of operation. A first routine is initiated to provide an optimal balance of powertrain responsiveness and fuel economy for any given combination of vehicle speed and deceleration rate. The first routine may, according to a preferred embodiment, include a plurality of routines that are each configured to provide an optimal balance of powertrain responsiveness and fuel economy within a predefined range of vehicle speeds and deceleration rates. A second routine is initiated if said deceleration rate is within a predefined range. The second routine includes running the electric motor/generator while the hybrid vehicle is being stopped in order to control the driveline lash and thereby minimize disturbances during a subsequent engine re-start.