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:
Sep. 06, 2005
Filed:
Sep. 10, 2003
David Brigham, Ann Arbor, MI (US);
Brandon Masterson, Whitmore Lake, MI (US);
Mark Yamazaki, Canton, MI (US);
Kathleen Bailey, Dearborn, MI (US);
David Brigham, Ann Arbor, MI (US);
Brandon Masterson, Whitmore Lake, MI (US);
Mark Yamazaki, Canton, MI (US);
Kathleen Bailey, Dearborn, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
A method for controlling activation of a power source of a hybrid electric vehicle. A hybrid electric vehicle has first and second power sources connected to a motor. The motor is connected to a transmission adapted to drive a vehicle wheel. The method includes comparing a vehicle speed value to first and second threshold values. If the vehicle speed value is less than the first threshold value, then the method determines whether a vehicle brake is released. If the vehicle speed value is greater than the first threshold value and less than the second threshold value, the method determines whether additional acceleration is demanded. The power source is activated if additional power is demanded or if the vehicle brake has been released. The power source is deactivated if the brake is engaged or if additional power is not demanded.