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:
Jan. 24, 2012
Filed:
Jun. 10, 2010
Wei Liang, Farmington Hills, MI (US);
Qing Wang, Canton, MI (US);
Xiaoyong Wang, Canton, MI (US);
Joseph Gerald Supina, Saline, MI (US);
Ryan Abraham Mcgee, Ann Arbor, MI (US);
Ming Lang Kuang, Canton, MI (US);
Wei Liang, Farmington Hills, MI (US);
Qing Wang, Canton, MI (US);
Xiaoyong Wang, Canton, MI (US);
Joseph Gerald Supina, Saline, MI (US);
Ryan Abraham McGee, Ann Arbor, MI (US);
Ming Lang Kuang, Canton, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A vehicle powertrain includes an engine, an electric machine operable to output torque to at least one vehicle wheel, and an electric power source operable to provide electric power to the electric machine. A method for optimizing powertrain efficiency includes generating a plurality of three-dimensional maps of optimized engine speeds for combinations of vehicle power and vehicle speed at a plurality of predetermined powers of the electrical power source. Each of the maps corresponds to one of the predetermined powers of the electrical power source. The maps are used to determine an optimized engine speed for a given power of the electrical power source, a given vehicle power and a given vehicle speed.