Vehicle which is steerable along a guide wire lying in the groun

Details Vehicle which is steerable along a guide wire lying in the groun Vehicle which is steerable along a guide wire lying in the groun

1980-04-15

1982-01-12

Dobeck, B.

Electricity: motive power systems

Positional servo systems

Vehicular guidance systems with single axis control

180168, G05D 100

Patent

active

043107893

ABSTRACT:
A sensor array which extends only over a fraction of the length of the vehicle generates pick-up signals in response to signals emitted by a ground wire lying in the ground. The pick-up signals are processed in signal-processing circuits to generate a heading signal and a displacement signal representing the position of the vehicle and the direction of its longitudinal axis relative to the guide wire. A curvature detector is provided for generating a curvature signal, which represents the curvature of a bend of the guide wire near the sensor array. The heading, displacement and curvature signals are combined by a signal-combining circuit, which delivers a position control signal to position control means for controlling at least one steerable wheel of the vehicle so as to steer the latter along the guide wire.

REFERENCES:
patent: Re30492 (1981-01-01), Blakesee
patent: 3748564 (1973-07-01), Ohba
patent: 4079801 (1978-03-01), Dobson
patent: 4253541 (1981-03-01), Lida et al.

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