A method for steering system position control includes receiving a target angle for a pinion of a rack of a steering system, receiving an actual angle of the pinion, and determining an angle error value based on a difference between the target angle and the actual angle. The method also includes providing the angle error value to a proportional-integral-derivative (PID) controller, receiving a target velocity of the pinion, and generating a friction compensation value based on the target velocity. The method also includes generating a control command value based on an output of the PID controller and the friction compensation value, and controlling at least one aspect of the steering system based on the control command value.

A method for providing electrical component thermal prognostics includes proactively estimating a time remaining for thermal usage limits for an electrical component of a vehicle, and predicting a time estimate for thermal derating based on a fundamental first order filter response.

The present disclosure relates to a steering assistance system, a steering control device, and a steering control method. Specifically, the steering control device according to the present invention calculates a target rack stroke on the basis of steering information input by a driver and calculates a target instruction current according to the target rack stroke, wherein different instruction currents are calculated depending on whether other steering control devices fail, and are applied to a steering motor according to predetermined application patterns.

Disclosed is an electric power steering system for a vehicle, the power steering system including: an electric motor configured to provide mechanical power to a steering mechanism of the vehicle for steering the vehicle; a housing in which the electric motor is disposed, wherein the housing comprises an inner housing in which the electric motor is disposed, and an outer housing disposed around the inner housing, and wherein an air flow path is defined within the housing, the air flow path being defined at least in part by a gap between the inner housing and the outer housing; and an air flow source arranged to generate an air flow along the air flow path to cool the electric motor, wherein the air flow source is independent from the electric motor.

The disclosure relates generally to a method and apparatus for operating a steer-by-wire steering system for a motor vehicle and to a steer-by-wire steering system. An example method includes identifying a normal angle input for a road wheel angle of steerable wheels based on a steering command, identifying an adapted angle input characteristic curve for the road wheel angle based on the normal angle input overlaid with an overlay angle characteristic curve, communicating an actuating signal based on the adapted angle input characteristic curve to a road wheel actuator, detecting at least one operating parameter influenced by the road wheel actuator during the tracking of the road wheel angle of the steerable wheels, determining an updated friction value of the road wheel actuator based on the detected at least one operating parameter, and adjusting a current friction value of the road wheel actuator based on the updated friction value.