Control device for a steering system

Details Control device for a steering system Control device for a steering system

1998-08-25

2000-04-11

Nguyen, Hoang

Motors: expansible chamber type

With motive fluid valve

Electrically operated

91465, 91466, 91469, F15B 13044, F15B 1304

Patent

active

060476281

ABSTRACT:
The present invention relates generally to agricultural machinery and, more particularly, to a device for controlling a double-acting steering cylinder of a steering system, having two working connections of the steering cylinder, wherein the working connections are each connected by means of an input pipe or an output pipe to a valve unit, which comprises two switching valves that can be moved alternately into a first switching position and into a second switching position and the steering cylinder in the first switching position of the first switching valve admits a fluid at the first working connection and the steering cylinder in the second switching position of the second switching valve admits the fluid at the second working connection.

REFERENCES:
patent: 4085657 (1978-04-01), Kervagoret
patent: 4227481 (1980-10-01), Cox et al.
patent: 4616674 (1986-10-01), Bardoll
patent: 4623031 (1986-11-01), Drutchas et al.
patent: 5615594 (1997-04-01), Duckinghaus
Improved Active and Passive Safety by Using Active Lateral Dynamic Control and an Unconventional Steering Unit, by Per Branneby, Bo Palmgren, Anders Isaksson, Torbjorn Pettersson and Stig Franze at the 13.sup.th International Technical Conference on Experimental Safety Vehicles, Nov. 7, 1991.
U.S. application No. 08/740,316, Diekhans, filed Oct. 28,1996.

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