Riderless vehicle steering control apparatus

Details Riderless vehicle steering control apparatus Riderless vehicle steering control apparatus

1987-01-12

1988-10-04

Love, John J.

Motor vehicles

With means for controlling operation responsive to...

Having controlling means adapted to interact with stationary...

B60K 2900

Patent

active

047750235

ABSTRACT:
A vehicle steering control apparatus for following a riderless vehicle over a reference path defined by a guide tape installed on a floor. A sensor assembly, mounted on the vehicle bottom surface, includes a plurality of sensor units arranged on a line. Each the sensor unit includes a downward-facing light emission diode operable to emit a light ray and a downward-facing photodiode sensitive to a light ray received thereon for generating a sensor signal corresponding to the sensed light intensity. The sensor signal from each the sensor unit is applied to a control circuit which provides a command signal corresponding to the received sensor signals. The riderless vehicle includes a steering device responsive to the command signal for correcting vehicle steering to aline the vehicle sufficient well over the reference path. The control apparatus includes a drive circuit for driving the sensor units in a time-sharing fashion causing sequential light emission of the light emission diodes in a predetermined sequence.

REFERENCES:
patent: 3881568 (1975-05-01), Ando et al.

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