Abstract
Electromechanical steering systems become more and more important. This is on the one hand due to the demand-oriented and thus fuel-optimal control of these systems; on the other, they do not depend on the combustion engine. Further advantages of electromechanical steering systems include more freedom in the application of steering assistance and thus the best possible steering feel as well as a higher functionality of driver assistance systems, e.g. Lane Departure Warning (LDW), due to possible steering torque superposition. However, the additional freedom results in new tasks and challenges for the engineers in terms of application and development of steering control.
One important topic discussed in this paper is human reaction if improper steering torque is applied. In addition to the implementation and application of the control software, monitoring of the functions in terms of quality control has become more important. A HIL environment for the evaluation of the center point feeling was developed to identify faulty software on the one hand. On the other, it aims at relieving the application engineer. The approach for the objectification of subjective characteristics for the calibration of the steering system is discussed. This method is already in successful use for the automated calibration of automatic transmissions.
Keywords: steering system, driver assistance, HiL, disturbance rating, objectification