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. 15, 2015
Filed:
Mar. 12, 2013
Abraham Gebregergis, Saginaw, MI (US);
Mohammad S. Islam, Saginaw, MI (US);
Tomy Sebastian, Saginaw, MI (US);
Mazharul H. Chowdhury, Midland, MI (US);
Shakil Hossain, Saginaw, MI (US);
Ramakrishnan Rajavenkitasubramony, Saginaw, MI (US);
Niharika P. Popy, Saginaw, MI (US);
Abraham Gebregergis, Saginaw, MI (US);
Mohammad S. Islam, Saginaw, MI (US);
Tomy Sebastian, Saginaw, MI (US);
Mazharul H. Chowdhury, Midland, MI (US);
Shakil Hossain, Saginaw, MI (US);
Ramakrishnan RajaVenkitasubramony, Saginaw, MI (US);
Niharika P. Popy, Saginaw, MI (US);
Steering Solutions IP Holding Corporation, Saginaw, MI (US);
Abstract
A motor control system is provided. The motor control system includes a motor having plurality of motor harmonics, and a torque ripple compensation controller in communication with the motor. The torque ripple compensation controller is configured to determine a harmonic ripple current for a corresponding one of the plurality of motor harmonics. The harmonic ripple current is based on a reference q-axis current and a reference d-axis current. The torque ripple compensation controller is configured to add the harmonic ripple current for each of the plurality of motor harmonics together to determine the ripple compensating current.