Superposition steering system with integrated mechanical and inf

Details Superposition steering system with integrated mechanical and inf Superposition steering system with integrated mechanical and inf

1989-09-22

1990-10-02

Wright, Dirk

Planetary gear transmission systems or components

Steering by driving

With infinitely variable drive

475 22, 180644, F16H 3706

Patent

active

049604040

ABSTRACT:
A superposition steering system for a track vehicle includes an infinitely variable steering drive unit integrated with an engine driven mechanical steering input drive to provide a reduction in the amount of power to be transmitted by the variable steering drive to only 20% of the total steering power. The system includes a steering transmission having five epicyclic differential gears and five shift couplings with the differential gears and shift couplings so connected that for shifting from one operating speed to another, in each instance, only one shift coupling is required to be opened and another shift coupling required to be closed. Because of the small number of shift couplings, operating reliability is increased and shifting between various stages can take place quickly to provide high vehicle maneuverability.

REFERENCES:
patent: 3938604 (1976-02-01), Kugler et al.
patent: 4327603 (1982-05-01), Zaunberger et al.
patent: 4497218 (1985-02-01), Zaunbergere et al.

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