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. 09, 2014
Filed:
Jul. 12, 2012
Jing Zhou, Auburn Hills, MI (US);
Goro Tamai, West Bloomfield, MI (US);
Feisel Weslati, Troy, MI (US);
Nadirsh Patel, Farmington Hills, MI (US);
Ashish Krupadanam, Cupertino, CA (US);
Jing Zhou, Auburn Hills, MI (US);
Goro Tamai, West Bloomfield, MI (US);
Feisel Weslati, Troy, MI (US);
Nadirsh Patel, Farmington Hills, MI (US);
Ashish Krupadanam, Cupertino, CA (US);
Chrysler Group LLC, Auburn Hills, MI (US);
Abstract
A system and method of controlling first and second electric motors of a vehicle having an electrically variable transmission during an engine start/stop operation. The system and method determine an input speed profile and an input acceleration profile based on an optimum engine speed, determine a requested output torque based on a plurality of torque limits and a desired output torque, determine first and second feedforward motor torques based on a requested output torque and the input speed and input acceleration profiles, determine first and second feedback motor torques based on a difference between the input speed profile and an actual input speed, and using the feedforward and feedback first and second motor torques to control the operation of the first and second electric motors when an engine is being turned on or off.