Motor vehicles – Steering gear – With fluid power assist
Patent
1996-09-30
1999-08-24
DePumpo, Daniel G.
Motor vehicles
Steering gear
With fluid power assist
180442, 280268, 701 41, B62D 506
Patent
active
059413387
ABSTRACT:
The correction system of this invention simulates a power steering leak which the driver can manually adjust or automatically tune to offset vehicle drift and/or pull generated by road crown, wind, vehicle alignment, and tires during straight ahead driving. The drift and pull correction system taps into the bypass line of a vehicle's power steering system and can be added to the vehicle as an aftermarket device. For example, the standard rack or power gear, the power steering pump and reservoir and the steering assembly of the power steering system can be used in combination with the addition of correction lines and correction valves of the steering correction system to correct the vehicle's steering system for "straight ahead driving" without operator assistance. The magnitude of the drift and/or pull is a direct function of the magnitude of the leak and the back (parasitic) pressure in the system. The correction system bypasses hydraulic fluid to one side of the power steering piston causing the steering system to input a steer angle change to the wheels until the added steering force generated on the vehicle is adequate to balance the forces and moments generated during straight ahead driving.
REFERENCES:
patent: 4410193 (1983-10-01), Howard
patent: 4534577 (1985-08-01), Howard
patent: 4756427 (1988-07-01), Yonker
patent: 4877100 (1989-10-01), Emori et al.
patent: 4941097 (1990-07-01), Karnopp et al.
patent: 5048630 (1991-09-01), Schaffer
patent: 5156229 (1992-10-01), Yasui et al.
patent: 5267627 (1993-12-01), Frank et al.
patent: 5267628 (1993-12-01), Tomiyoshi et al.
patent: 5291962 (1994-03-01), Momiyama et al.
patent: 5303636 (1994-04-01), Stephenson et al.
patent: 5313389 (1994-05-01), Yasui et al.
patent: 5373911 (1994-12-01), Yasui
patent: 5422810 (1995-06-01), Brunning et al.
patent: 5511630 (1996-04-01), Kohata et al.
patent: 5527053 (1996-06-01), Howard
patent: 5536028 (1996-07-01), Howard
Clinkscales James Kenneth
Miller Gerald Roger
Wilson, Jr. Jack Latrop
Csontos Alan A.
DePumpo Daniel G.
Michelin Recherche ET Technique S.A.
Reed Robert R.
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