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. 06, 2007
Filed:
Jul. 22, 2005
Ming Kuang, Canton, MI (US);
Fazal Syed, Canton, MI (US);
Paul Niessen, Plymouth, MI (US);
Michael Tiller, Canton, MI (US);
Prabhakar Patil, Southfield, MI (US);
Sunny Khosla, Ann Arbor, MI (US);
Ming Kuang, Canton, MI (US);
Fazal Syed, Canton, MI (US);
Paul Niessen, Plymouth, MI (US);
Michael Tiller, Canton, MI (US);
Prabhakar Patil, Southfield, MI (US);
Sunny Khosla, Ann Arbor, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method is disclosed for attenuating vibrations of an engine in a hybrid electric vehicle powertrain having a subsystem comprising an electric motor, a generator and a battery. Engine torque is coordinated with motor torque during engine start events and engine stopping events using gearing that defines in part separate torque flow paths for the engine and the motor. A filtered motor speed is used to compute active motor torque damping.