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. 17, 2013
Filed:
Sep. 23, 2011
Ming Lang Kuang, Canton, MI (US);
Shailesh Shrikant Kozarekar, Novi, MI (US);
Fazal Urrahman Syed, Canton, MI (US);
Edward William Haran, Northville, MI (US);
Jonathan Andrew Butcher, Farmington, MI (US);
Kimberly Murphy, Canton, MI (US);
Ming Lang Kuang, Canton, MI (US);
Shailesh Shrikant Kozarekar, Novi, MI (US);
Fazal Urrahman Syed, Canton, MI (US);
Edward William Haran, Northville, MI (US);
Jonathan Andrew Butcher, Farmington, MI (US);
Kimberly Murphy, Canton, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A system and method for controlling a hybrid electric vehicle powertrain having an engine, a generator, and a motor connected via a planetary gear set to detect lockup in the planetary gear set and control the powertrain in response. When torque is distributed in an electric mode of operation with the engine disabled, the generator is disabled based at least upon a difference between actual generator speed and an expected generator speed exceeding a threshold, indicating a lockup in the planetary gear set. When the engine is activated and distributes torque through the powertrain, the engine and the generator are disabled based at least upon a difference between engine acceleration and an expected engine acceleration exceeding a first threshold, and a difference between engine speed and ring gear speed being less than a second threshold.