Power steering servo control for motor vehicles

US5390755A · kind A · utility

Assignee

• Mercedes-Benz Group AG · DE

Inventors

• Wolfgang Joerg · Stuttgart, DE
• Arno Roehringer · Ditzingen, DE

Key dates

• Filing date: Dec 10, 1993
• Grant date: Feb 21, 1995
• Expiry date: Dec 10, 2013

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B62D5/083
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A servo control is disclosed especially for a power steering for motor vehicles. A shaft serves as an actuating member and is subdivided axially into a primary shaft and a secondary shaft. The two shaft parts are coupled elastically to one another via a torsion bar and a prestressed leg spring acting parallel thereto. Accordingly, a relative rotation adjusting a servo-valve arrangement can occur between the two shaft parts only when the shaft is loaded by a torque which exceeds the prestress of the leg spring.