Servo-assisted rack-and-pinion system

US5671637A · kind A · utility

Assignee

• Mercedes-Benz Group AG · DE

Inventors

• Wolfgang Joerg · Stuttgart, DE
• Jaromir Bordovsky · Winnenden, DE
• Aydogan Cakmaz · Stuttgart, DE
• Hubert Heck · Goldkronach, DE
• Arno Roehringer · Ditzingen, DE
• Claus Gall · Fellbach, DE
• Reinhold Abt · Bad Liebenzell, DE
• Rainer Strauss · Kaarst, DE
• Karl-Hans Koehler · Wernau, DE

Key dates

• Filing date: Nov 30, 1995
• Grant date: Sep 30, 1997
• Expiry date: Nov 30, 2015

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/1967
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A servo-assisted rack-and-pinion steering system in which the rack is drive-coupled to a pinion which is mounted to move between two end positions in the longitudinal direction of the rack so that its movements control the servo motor. The end positions of the pinion are defined by two friction wheels which are driven continuously in opposite directions by the servo motor, in each case allowing an auxiliary force to be transmitted to the pinion.