Abstract: A method of controlling an electric power steering system is provided. The method includes: determining a scale factor based on a handwheel position; applying the scale factor to a hand wheel torque value to scale the hand wheel torque value; and generating a corrected handwheel torque signal based on the scaled hand wheel torque value.

Abstract: A system and a method for determining an absolute rotational position of the vehicle handwheel are provided. In one exemplary embodiment, a method includes monitoring an amount of torque applied to the vehicle handwheel. The method further includes monitoring a rotational speed of the vehicle handwheel. The method further includes setting an absolute position value indicating the absolute position of the vehicle handwheel equal to a predetermined steering travel limit of the vehicle handwheel when both the amount of torque applied to the vehicle handwheel is greater than or equal to a threshold torque level, and the rotational speed of the vehicle handwheel is less than or equal to a threshold rotational speed. The method further includes storing the absolute rotational position value in a memory device.

Abstract: Systems and methods for determining an absolute rotational position of the vehicle handwheel are provided. In one exemplary embodiment, a method includes determining a slope value based on the delta torque value associated with the vehicle steering system and the delta rotational position value associated with a vehicle handwheel. The method further includes setting an absolute position value indicating the absolute position of the vehicle handwheel equal to a predetermined steering travel limit of the vehicle handwheel when the slope value is within a predetermined slope range.

Abstract: A method for determining an absolute rotational position of a vehicle steering column is provided. In one exemplary embodiment, the method determines a relative position of a steering assist motor utilizing a relative position sensor. Thereafter, the method determines the absolute rotational position of the vehicle steering column based upon the relative position of the steering assist motor.

Abstract: A method of controlling an electric power steering system is provided. The method includes: determining a scale factor based on a handwheel position; applying the scale factor to a hand wheel torque value to scale the hand wheel torque value; and generating a corrected handwheel torque signal based on the scaled hand wheel torque value.

Abstract: A method for controlling a steering system, the method including, receiving a first signal including a position of a component in the steering system, receiving a second signal including a disturbance signal operative to indicate an effect of a first torque disturbance in the steering system, calculating a first counter acting torque command signal operative to minimize the first torque disturbance as a function of the position of the component and the disturbance signal, and sending the first counter acting torque command signal to a motor.

Abstract: Methods, systems, and computer program products for steering travel limit determination for electric power steering. Exemplary embodiments include a method, computer program product and system incorporating the method, for implementing steering travel limit determination for electric power steering, including measuring end of travel positions of a handwheel of a vehicle, recording the end of travel positions, comparing the end of travel positions with current travel limit values and recording new travel limits with respect to the end of travel positions.

Abstract: A method for determining an absolute rotational position of a vehicle steering column is provided. In one exemplary embodiment, the method determines a relative position of a steering assist motor utilizing a relative position sensor. Thereafter, the method determines the absolute rotational position of the vehicle steering column based upon the relative position of the steering assist motor.

Abstract: A method for determining an absolute rotational position of a vehicle steering column is provided. In one exemplary embodiment, the method determines a relative position of a steering assist motor utilizing a relative position sensor. Thereafter, the method determines the absolute rotational position of the vehicle steering column based upon the relative position of the steering assist motor.

Abstract: A method for controlling a steering system, the method including, receiving a first signal including a position of a component in the steering system, receiving a second signal including a disturbance signal operative to indicate an effect of a first torque disturbance in the steering system, calculating a first counter acting torque command signal operative to minimize the first torque disturbance as a function of the position of the component and the disturbance signal, and sending the first counter acting torque command signal to a motor.

Abstract: An electric power steering system includes a steering wheel, an electric assist motor operatively coupled to the steering wheel, and an electronic controller operatively coupled to the motor for receiving a first signal representative of torque applied to the steering wheel, and a second signal representative of angular velocity of the motor. The electronic controller produces an active damping motor command signal according to a function of the first and second signals. The active damping motor command signal is scaled by a first factor if the first and second signals are both positive, or if the first and second signals are both negative, to provide a scaled motor command signal. The active damping motor command signal is scaled by a second factor if the first signal is positive and the second signal is negative, or if the first signal is negative and the second signal is positive, to provide the scaled motor command signal. The scaled motor command signal is applied to the motor.

Abstract: Systems and methods for determining an absolute rotational position of the vehicle handwheel are provided. In one exemplary embodiment, a method includes determining a slope value based on the delta torque value associated with the vehicle steering system and the delta rotational position value associated with a vehicle handwheel. The method further includes setting an absolute position value indicating the absolute position of the vehicle handwheel equal to a predetermined steering travel limit of the vehicle handwheel when the slope value is within a predetermined slope range.

Abstract: A system and a method for determining an absolute rotational position of the vehicle handwheel are provided. In one exemplary embodiment, a method includes monitoring an amount of torque applied to the vehicle handwheel. The method further includes monitoring a rotational speed of the vehicle handwheel. The method further includes setting an absolute position value indicating the absolute position of the vehicle handwheel equal to a predetermined steering travel limit of the vehicle handwheel when both the amount of torque applied to the vehicle handwheel is greater than or equal to a threshold torque level, and the rotational speed of the vehicle handwheel is less than or equal to a threshold rotational speed. The method further includes storing the absolute rotational position value in a memory device.

Abstract: A method for determining an absolute rotational position of a vehicle steering column is provided. In one exemplary embodiment, the method determines a relative position of a steering assist motor utilizing a relative position sensor. Thereafter, the method determines the absolute rotational position of the vehicle steering column based upon the relative position of the steering assist motor.

Abstract: Methods, systems, and computer program products for steering travel limit determination for electric power steering. Exemplary embodiments include a method, computer program product and system incorporating the method, for implementing steering travel limit determination for electric power steering, including measuring end of travel positions of a handwheel of a vehicle, recording the end of travel positions, comparing the end of travel positions with current travel limit values and recording new travel limits with respect to the end of travel positions.

Abstract: An electric power steering system includes a steering wheel, an electric assist motor operatively coupled to the steering wheel, and an electronic controller operatively coupled to the motor for receiving a first signal representative of torque applied to the steering wheel, and a second signal representative of angular velocity of the motor. The electronic controller produces an active damping motor command signal according to a function of the first and second signals. The active damping motor command signal is scaled by a first factor if the first and second signals are both positive, or if the first and second signals are both negative, to provide a scaled motor command signal. The active damping motor command signal is scaled by a second factor if the first signal is positive and the second signal is negative, or if the first signal is negative and the second signal is positive, to provide the scaled motor command signal. The scaled motor command signal is applied to the motor.