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:
May. 29, 2001
Filed:
Feb. 11, 2000
Jack H. Xu, Plochingen, DE;
Kenneth James Farkas, Dearborn, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
An induction motor control system (,) for electric vehicles having a DC power supply (,), an inverter (,), an induction motor (,), and a clamping unit (,). The clamping unit (,) applies a clamping value iq_clamp to a real torque current command i,*. The clamping value iq_clamp is calculated in a maximum torque current calculation unit,and is based on predetermined maximum settings for the motor power P,and torque T,. The clamping value iq_clamp is applied such that the torque current command i,* cannot exceed the clamping value iq_clamp, whereby the induction motor produces,output power P,and torque T,that is always less than the predetermined maximum settings, P,and T,.