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.

Date of Patent:
Oct. 06, 2020

Filed:

Jan. 03, 2018
Applicant:

Steering Solutions Ip Holding Corporation, Saginaw, MI (US);

Inventors:

Harshwardhan D. Karve, Midland, MI (US);

Jens Dittmer, Munich, DE;

Anthony J. Champagne, Saginaw, MI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62D 6/10 (2006.01); B62D 6/00 (2006.01); B62D 5/04 (2006.01); H02P 21/22 (2016.01); G05B 19/427 (2006.01);
U.S. Cl.
CPC ...
B62D 6/10 (2013.01); B62D 5/0463 (2013.01); B62D 5/0472 (2013.01); B62D 5/0481 (2013.01); B62D 6/008 (2013.01); G05B 19/427 (2013.01); H02P 21/22 (2016.02);
Abstract

Technical solutions are described for generating and providing a motor torque command in electric systems such as an electric power steering (EPS) system. For example, an example EPS system includes a motor, and a controller that operates the motor to generate torque. The controller determines a torque reference twist based on a torque reference. The controller further determines a motor angle reference twist based on an angle-difference by multiplying the angle-difference by an autonomous mode enable signal. The autonomous mode enable signal is indicative whether the EPS is operating in autonomous mode. The controller further computes a total reference twist based on the torque reference twist and the motor angle reference twist, and computes a motor angle reference based on the total reference twist and a handwheel angle. The controller further generates the motor torque command using the motor angle reference, and sends the motor torque command to the motor.


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