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. 03, 2002
Filed:
Nov. 10, 2000
Abbas Raftari, Northville, MI (US);
Deepa Ramaswamy, Ypsilanti, MI (US);
Jerry D. Robichaux, Tucson, AZ (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
A torque based monitor method, apparatus, and system, for a torque splitting hybrid electric vehicle (HEV) powertrain and regenerative brake system. The preferred powertrain configuration includes an internal combustion engine , generator , and electric traction motor combined to produce the vehicle's output shaft torque. The invention has a set of vehicle state sensors and communication interfaces connected independently to a main controller and an independent plausibility check (IPC) . The IPC monitors and mitigates the powertrain output shaft torque (OST) by reducing powertrain torque when the detected OST is greater than the desired OST. The IPC has a second mode of operation to shut down the powertrain OST of the HEV powertrain when a fault or failure is detected. Additional features include a quizzer function to continuously verify the functionality of the IPC.