Steer-by-wire system with spring-to-center steering wheel control of a vehicle based on steering wheel torque and/or vehicle yaw rate
AssigneeFord Global Technologies, LLC
InventorsBang Kim Cao, Matthew Meyerholtz Johnson, Jonathan Craig Sullivan, David Gon Oh, Sage Aaron Stubbs
Life of this patent
Estimating the term…
Abstract
Disclosed example include interface circuitry to obtain a steering wheel torque value corresponding to torque produced via a spring-to-center steering wheel; machine-readable instructions; and at least one processor circuit to be programmed by the machine-readable instructions to: determine a steering pinion angle value based on the steering wheel torque value; and control a road wheel actuator to turn a road wheel based on the steering pinion angle value.
Claims16
A steer-by-wire system comprising:
- interface circuitry to obtain a steering wheel torque value corresponding to torque produced via a spring-to-center steering wheel;
- machine-readable instructions;
- and
- at least one processor circuit to be programmed by the machine-readable instructions to:
- determine a steering pinion angle value based on the steering wheel torque value;
- and
- control a road wheel actuator to turn a road wheel based on the steering pinion angle value.
A steer-by-wire system comprising:
- interface circuitry to:
- obtain a measured yaw rate value of a vehicle;
- and
- obtain a steering wheel torque value corresponding to torque produced via a spring-to-center steering wheel;
- machine-readable instructions;
- and
- at least one processor circuit to be programmed by the machine-readable instructions to:
- determine a target yaw rate value based on the steering wheel torque value;
- determine a yaw rate difference between the measured yaw rate value and the target yaw rate value;
- determine a steering pinion angle value based on the yaw rate difference;
- and
- control a road wheel actuator to turn a road wheel based on the steering pinion angle value.
At least one non-transitory machine-readable medium comprising machine-readable instructions to cause at least one processor circuit to at least:
- access a steering wheel torque value corresponding to torque produced via a spring-to-center steering wheel;
- determine a steering pinion angle value based on the steering wheel torque value;
- and
- control a road wheel actuator to turn a road wheel based on the steering pinion angle value.
Dependencies are inferred from the claim text.