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US 12,759,519 B2Granted
Vehicle wheel steer control system and method
AssigneesSteering Solutions IP Holding Corporation, Continental Automotive Systems, Inc.
InventorsClinton L. Schumann, Scott T. Sanford
Life of this patent
Estimating the term…
Abstract
Steering a vehicle may include applying a net brake-steering force to a steered wheel sufficient to affect a steering moment upon the steered wheel sufficient to move the steered wheel away from a zero steering angle, and resisting movement of the steered wheel back toward the zero steering angle.
Claims14
A system comprising:
- a vehicle comprising a steered wheel;
- a steering angle sensor to detect a steering angle of the steered wheel, wherein a steering angle represents the angle that a centerline of the steered wheel makes with a longitudinal axis of the vehicle, wherein steering angles that open to in a left direction of the centerline is a positive steering angle and steering angles opening to the right direction of the centerline is a negative steering angle;
- a braking system for braking the steered wheel to steer a vehicle, wherein the braking system comprises a controllable friction brake connected to the steered wheel;
- a damping system for damping steering movement of the steered wheel;
- and
- a control system, comprising a processor and memory, operably coupled to the braking system and damping system to periodically brake the steered wheel comprising pulsed brake pressure control of a brake at the steered wheel sufficient to affect a steering moment upon the steered wheel sufficient to incrementally move the steered wheel toward a desired steering angle that is one of the positive steering angle or the negative steering angle, and to prevent reverse motion of the steered wheel when the desired steering angle is attained, wherein the pulsed brake control produced at least four brake pulses.
3 more elements
A system comprising:
- a steered wheel;
- a steering angle sensor to detect a steering angle of the steered wheel;
- a braking system for braking the steered wheel;
- damping system for damping steering movement of the steered wheel;
- and
- a control system, comprising a processor and memory, operably coupled to the braking system and damping system to periodically brake the steered wheel comprising pulsed brake pressure control of a brake at the steered wheel sufficient to affect a steering moment upon the steered wheel sufficient to incrementally move the steered wheel toward a desired steering angle and to prevent reverse motion of the steered wheel when a desired steering angle is attained, wherein the pulse brake pressure control of the brake comprises an oscillating brake pressure comprising a plurality of oscillations from a first brake pressure to a second brake pressure without the brake pressure going to zero brake pressure, wherein the second brake pressure is greater than the first brake pressure.
3 more elements
Dependencies are inferred from the claim text.