Tire Lateral Force Determination in Electrical Steering Systems
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Abstract
A method for calculation of the lateral force in a motor vehicle with an electromechanical or electrohydraulic steering system is disclosed. The method comprises the following steps: firstly a steering column force is recorded, from which a total restoring torque is calculated. The total restoring torque comprises restoring torques generated by differing forces acting on the wheels. Said restoring torques include a restoring torque generated by lateral force and other restoring torques. The other restoring torques are quantitatively determined on the basis of measured values and subtracted from the total restoring torque, in order to determine the restoring torque generated by lateral force. Finally the lateral force is determined from the restoring torque generated by the lateral force.
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Citations
22 Claims
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1-11. -11. (canceled)
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12. Method for calculating the lateral force in a motor vehicle with an electromechanical or electrohydraulic steering system, the method comprising:
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recording a steering rod force; calculating a total restoring torque from the steering rod force, with the said restoring torque comprising a restoring torque generated by lateral force and other restoring torques; quantitatively determining the other restoring torques based on measured values; subtracting the other restoring torques from the total restoring torque for determining the restoring torque generated by the lateral force; and determining the lateral force from the restoring torque generated by the lateral force. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification