Assist Compensation For Actively Controlled Power Steering Systems
First Claim
1. An electric power steering system including a control for providing a calculated torque assist demand in the event of failure of a steering wheel torque sensor, the control responsive to one or more of a vehicle speed, a steering column position, a steering column velocity, a gear lever position, a vehicle yaw rate and a vehicle lateral acceleration for generating the calculated torque assist demand.
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Accused Products
Abstract
An electric power steering system includes a control for providing a calculated torque assist demand in the event of failure of a steering wheel torque sensor. The control is responsive to one or more of a vehicle speed, a steering column position, a steering column velocity, a gear lever position, a vehicle yaw rate and a vehicle lateral acceleration for generating the calculated torque assist demand. The control is operable to modify the torque assist demand by providing one or more of (a) friction and inertial compensation, (b) vehicle oversteer compensation, (c) reverse motion compensation, (d) damping compensation and (e) self steer prevention.
20 Citations
2 Claims
- 1. An electric power steering system including a control for providing a calculated torque assist demand in the event of failure of a steering wheel torque sensor, the control responsive to one or more of a vehicle speed, a steering column position, a steering column velocity, a gear lever position, a vehicle yaw rate and a vehicle lateral acceleration for generating the calculated torque assist demand.
Specification