Electricity: motive power systems – Positional servo systems – Vehicular guidance systems with single axis control
Patent
1979-11-06
1981-12-22
Dobeck, B.
Electricity: motive power systems
Positional servo systems
Vehicular guidance systems with single axis control
180168, B62D 124
Patent
active
043073298
ABSTRACT:
A ground vehicle guidance system for following a current-carrying guidewire provides improved steering stability over a wide range of speeds and improved immunity to inductive field anomalies by computing vehicle heading and lateral displacement using sensor signals themselves substantially insensitive to heading variations, with the sensor signals being processed to provide steering command signals having specified relationships to vehicle steering geometry, so that desired damping factors can be obtained for both forward and reverse travel. Improved vehicle speed-limiting and stopping circuits control truck operation in accordance with computed heading and lateral displacement deviations independently from each other. Steering systems are illustrated both for vehicles using steerable wheels and vehicles steered by differential drive wheel speed control.
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Dobeck B.
Stephens Richard G.
The Raymond Corporation
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