Gm Global Technolgoy Operations, Inc.

Ramakrishna Kamath Vijayakumar

Seyedeh Asal Nahidi

Seyedalireza Kasaiezadeh Mahabadi

George E Doerr

Ibrahim A Badiru

Douglas J Spry

Cody Dunham

A vehicle steering control system including a road wheel angle sensor for detecting a road wheel angle, a steering feedback motor for rotating a steering wheel in response to the road wheel angle and for generating a steering torque value in response to a physical rotation of the steering wheel by a vehicle driver, a processor for receiving the road wheel angle and the steering torque value, for estimating a steering wheel angle in response to the steering torque value and for generating a validated steering angle in response to a difference between the road wheel angle and the steering wheel angle being less than a threshold value, and a steering controller for controlling the steering of a vehicle in response to the validated steering angle.

Steering wheel angle sensor estimation and validation system

Systems and methods for controlling an electric power steering (EPS) motor of an EPS system of a vehicle are provided. A steering rack position sensor detects a linear position of a steering rack linear of the EPS system and a suspension travel sensor detects a suspension travel of the vehicle. An EPS controller has a processor and a memory. The EPS controller is configured to control the current draw of the EPS motor. The EPS controller is further configured to determine an EPS motor output torque based on the linear position of the steering rack and the suspension travel, and to limit the current draw of the EPS motor based on the EPS motor output torque.

System and method for controlling an electric power steering motor

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Troy, MI, United States of America

Ramakrishna Kamath Vijayakumar