US 12,344,331 B2
Method for determining a steering hysteresis requirement, steering system, computer program product and storage medium
Peter Hambloch, Krefeld (DE); Andreas Kotz, Duisburg (DE); and Martin Gebing, Vreden (DE)
Assigned to ZF Automotive Germany GmbH, Alfdorf (DE)
Filed by ZF Automotive Germany GmbH, Alfdorf (DE)
Filed on May 17, 2022, as Appl. No. 17/746,177.
Claims priority of application No. 102021204995.8 (DE), filed on May 18, 2021.
Prior Publication US 2022/0371656 A1, Nov. 24, 2022
Int. Cl. B62D 5/04 (2006.01); B62D 6/00 (2006.01)
CPC B62D 5/0493 (2013.01) [B62D 6/008 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for determining a steering hysteresis requirement of a steering device of a vehicle, wherein the steering device is part of a steering system of the vehicle and is coupled to at least one sensor and at least one actuator which is configured to apply a target steering torque to the steering device, the method comprising:
taking measurements corresponding to at least one rack force of the steering system via the at least one sensor;
determining an absolute limit value of the steering hysteresis requirement and an absolute gradient value of the steering hysteresis requirement based at least in part on the measurements corresponding to the at least one rack force of the steering system taken via the at least one sensor;
determining the steering hysteresis requirement based on the determined absolute limit value of the steering hysteresis requirement and the determined absolute gradient value of the steering hysteresis requirement, wherein the steering hysteresis requirement forms at least one component of the target steering torque; and
activating the at least one actuator to act upon the steering device to apply the target steering torque to the steering device.