Turning control system for use in a track-laying vehicle

Details Turning control system for use in a track-laying vehicle Turning control system for use in a track-laying vehicle

1996-07-25

1999-03-16

Zanelli, Michael

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Construction or agricultural-type vehicle

701 41, 477 1, 180 644, 180 67, B62D 1110

Patent

active

RE0361518

ABSTRACT:
A turning control system for use in a track-laying vehicle comprising: a steering motor for driving crawler belts provided at both sides of the vehicle such that a relative travel difference is caused between the crawler belts, thereby turning the vehicle rightwards or leftwards; a steering instructing device which can be displaced from a neutral position by operation and which instructs, in accordance with its displacement direction and displacement distance, a turning direction and a turning radius for the vehicle, the turning radius decreasing as the displacement distance increases; a displacement detector for detecting the displacement of the steering instructing device; a vehicle speed detector for detecting the vehicle speed at which the vehicle moves forwards or backwards; and a steering motor revolution speed control unit for controlling the revolution speed of the steering motor such that the revolution speed of the steering motor becomes proportional to the vehicle speed detected by the vehicle speed detector at least in the region of low vehicle speeds, when the steering instructing device is displaced and kept in a certain position and therefore there is no change in the displacement of the steering instructing device detected by the displacement detector.

REFERENCES:
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patent: 4882947 (1989-11-01), Barnard
patent: 4917200 (1990-04-01), Lucius
patent: 5285861 (1994-02-01), Nakamura

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