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:
May. 28, 2002
Filed:
Mar. 30, 2000
Richard Joseph Hampo, Livonia, MI (US);
Xingyi Xu, Canton, MI (US);
Ford Global Technologies, Inc., Dearborn, MI (US);
Abstract
A hybrid electric vehicle contains a powerplant for propelling the vehicle. The powerplant comprises a combustion engine ( ) and a dynamoelectric machine ( ). A control system ( ) issues a wheel torque command corresponding to torque desired at road-engaging wheels, and includes an engine controller ( ) for issuing an engine torque command and a dynamoelectric machine controller ( ) for issuing a dynamoelectric machine torque command. Controller ( ) contains one or more maps and/or profiles defining functional relationship of torque to engine crankshaft speed and/or position over a range of crankshaft speeds and/or positions. The maps and/or profiles are used to develop make-up torque that is delivered by the dynamoelectric machine to accomplish certain smoothing functions. Transmission gear shifts can be smoothed by using the dynamoelectric machine controller to slew the engine to a new target speed appropriate to the new gear. A dedicated, high-speed data communication link supplies crankshaft speed and position information from an engine-mounted sensor directly to controller ( ).