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:
Jul. 29, 2008
Filed:
Sep. 19, 2003
Mathew A. Boesch, Plymouth, MI (US);
Vijay K. Garg, Canton, MI (US);
Abbas Raftari, Northville, MI (US);
Bader M. Badreddine, Dearborn, MI (US);
Sergey G. Semenov, Farmington Hills, MI (US);
Lawrence M. Rose, Berkley, MI (US);
Gregory H. Benz, Saline, MI (US);
Mathew A. Boesch, Plymouth, MI (US);
Vijay K. Garg, Canton, MI (US);
Abbas Raftari, Northville, MI (US);
Bader M. Badreddine, Dearborn, MI (US);
Sergey G. Semenov, Farmington Hills, MI (US);
Lawrence M. Rose, Berkley, MI (US);
Gregory H. Benz, Saline, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method for validating engine and motor velocities in a vehicle having an engine and two motors is provided. The method validates the velocities without using two speed sensors for each device. The velocities of the engine and the two motors are first determined, and then mathematically combined using known velocity relationships based on the vehicle architecture. The mathematical combination of the velocities is then compared to a first pre-determined speed range, and if the mathematical combination is within the predetermined range, the velocities of the engine and the two motors are validated. If the validation of the engine and the two motors fails, additional equations can be used utilizing additional inputs, including the vehicle speed as measured at the vehicle wheels. In this way, the velocities of one or more of the torque generating devices in the vehicle may be validated.