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:
Dec. 29, 2009
Filed:
Jan. 23, 2007
Goro Tamai, West Bloomfield, MI (US);
Daniel P. Laurent, Saline, MI (US);
Birendra P. Bhattarai, Novi, MI (US);
James L. Worthing, Munith, MI (US);
Goro Tamai, West Bloomfield, MI (US);
Daniel P. Laurent, Saline, MI (US);
Birendra P. Bhattarai, Novi, MI (US);
James L. Worthing, Munith, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A method and system to capture energy during regenerative braking while managing driveline disturbances by controlling locking and unlocking of a torque-converter clutch based upon operator input, typically throttle position or accelerator pedal position, vehicle speed, and engine load is offered. The exemplary vehicle has an engine, a torque converter with a clutch, and a transmission device. Vehicle kinetic energy is transmittable to an electrical machine using the transmission device and the torque converter. It includes monitoring an operator demand for power, engine operating speed, and, engine load; and, actuating the locking clutch for the torque converter based upon the operator demand for power, the engine operating speed, and, the engine load.