Steer-by-wire steering system for motorized vehicles

US6219604A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Elmar Dilger · Echterdingen, DE
• Peter Ahner · Eppelheim, DE
• Herbert Lohner · Friolzheim, DE
• Peter Dominke · Bietigheim-Bissingen, DE
• Chi-Thuan Cao · Ditzingen, DE
• Ngoc-Thach Nguyen · Bornsteiner Straße, DE
• Helmut Janetzke · Hemmingen, DE
• Thorsten Allgeier · Untergruppenbach, DE
• Wolfgang Pfeiffer · Künzelsau, DE
• Bo Yuan · Lo Wu, CN
• Bernd Müller · Moers, DE
• Klaus Ries-Mueller · Bad Rappenau, DE
• Werner Harter · Mühlacker, DE
• Thomas Sauer · Rellingen, DE
• Werner Hess · Stuttgart, DE
• Peter Blessing · Heilbronn, DE

Key dates

• Filing date: Dec 28, 1999
• Grant date: Apr 17, 2001
• Expiry date: Dec 28, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B62D6/003
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A steer-by-wire steering system comprised of an electronically regulated steering positioner mounted to the steering gear of the front axle or to both front wheels of a vehicle together with an electronic steering regulator and a feedback actuator. A sensor senses the driver's selected direction from the steering wheel. Road feedback can be relayed to the driver through a feedback actuator via the steering wheel. The loss of road feel caused by the absence of the steering column, which normally strongly influences the driver's directional wish, is recreated by the feedback actuator.