0 nm within the range of normal steering sensation coordination rather higher manual torque is required for this purpose without the special function at higher manual torque in turn higher eps motor torque is allowed for this reason it is functionally appropriate and necessary to correct the manual torque for the safety function and a substitute manual torque m manual is computed as follows m manual m manual u2212 m offset 0 nm u2212 u2212 5 nm u2212 5 nm the substitute manual torque corresponds to the manual torque that is required to travel the curve without the special function the allowed motor torque is shifted from the first range 60 to a second range 62 arrow 64 and the request for torque for the special function is allowed this method can be established as part of a comparison of the vehicle response the decisive factor for the vehicle response which must be kept within the controllable range is the toothed rack motion because this steers the wheels the motion is obtained from the sum of the manual torque and eps servo torque if the driver is required to provide a lower manual torque contribution due to special functions die contribution of the servo motor increases accordingly however the sum of manual torque and eps motor torque on the toothed rack remains the same which is to say only the amplification factor between the manual torque and the motor torque is altered by torque based added functions in this case however the appropriately signed sum.