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1. (WO2017198549) STEER-BY-WIRE STEERING SYSTEM WITH COUPLABLE SINGLE-WHEEL STEERING SYSTEMS

Pub. No.:    WO/2017/198549    International Application No.:    PCT/EP2017/061364
Publication Date: Fri Nov 24 00:59:59 CET 2017 International Filing Date: Fri May 12 01:59:59 CEST 2017
IPC: B62D 5/00
Applicants: THYSSENKRUPP PRESTA AG
THYSSENKRUPP AG
Inventors: POLMANS, Kristof
Title: STEER-BY-WIRE STEERING SYSTEM WITH COUPLABLE SINGLE-WHEEL STEERING SYSTEMS
Abstract:
The invention relates to a steer-by-wire steering system for motor vehicles having at least two steering regulators which act on the steered wheels (201, 251) and are regulated electronically in a manner which is dependent on a driver's steering request, having a feedback actuator (4) which transmits feedback moments to a steering wheel, and a control unit (6) which actuates the feedback actuator (4) and the at least two steering regulators in order to generate drive power, wherein the at least two steering regulators have in each case one actuator with an output shaft, wherein, in a normal case, each steerable vehicle wheel (201, 251) is assigned a single steering regulator with an actuator in the form of a single-wheel steering system (20, 25), and a rotation of the respective steerable vehicle wheel (201, 205) about a pivoting axis (267) is brought about by way of a rotation of the output shaft of the actuator (202, 252), wherein a switchable clutch (14, 100) is provided which is configured in such a way that it is open in the normal case and is closed in the special case of parking, wherein the clutch (14, 100) connects the single-wheel steering systems (20, 25) to one another in the closed state in such a way that drive power can be transmitted from one single-wheel steering system (20, 25) to the other single-wheel steering system (20, 25) in order to rotate a steerable vehicle wheel (201, 251).