Abstract: A way is provided to simulate the steering handle manual torques which correspond to a steering stop of the steered vehicle wheels for a vehicle steering system which can be operated in a normal mode and in an emergency mode. The steering system is capable of being switched between a steer-by-wire level assigned to the normal mode, on which level a steering handle is connected to steered vehicle wheels via an electric or electronic control system, and a fall-back level assigned to the emergency mode, on which level the steering handle is positively coupled mechanically and/or hydraulically to the steered vehicle wheels. The fall-back level is activated in normal mode if the steered vehicle wheels are displaced into the region of the steering stop.
Type:
Grant
Filed:
September 17, 1999
Date of Patent:
September 4, 2001
Assignee:
DaimChrysler AG
Inventors:
Hubert Bohner, Mathias Hartl, Reinhold Schneckenburger