Patent · US Expired

Hydraulic auxiliary-force control of steering

US5027916A · kind A · utility

3Cited by

1References

10Claims

0Family size

Assignee

Daimler-Benz AG · DE

Inventors

Arno Rohringer · Ditzingen, DE
Reinhold Abt · Bad Liebenzell, DE
Ernst-Heinrich Fasse · Schorndorf, DE
Wolfgang Jorg · Stuttgart, DE

Key dates

Filing date	Aug 6, 1990
Grant date	Jul 2, 1991
Priority date	—
Expiry date	Aug 6, 2010

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/8667
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A servo control for power-assisted steering for motor vehicles having two coaxial shaft parts that are positively coupled to each other, but with play. The shaft parts are coupled such that limited relative rotations between these shaft parts are possible against the resistance of a pretensioned spring arranged in between. These relative rotations cause a pivoting stroke of a lever arranged between the shaft parts, this lever thereby actuating the control spool of a servo valve.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.