Travel control device for unmanned vehicle

Details Travel control device for unmanned vehicle Travel control device for unmanned vehicle

1990-03-05

1991-08-06

Kashnikow, Andres

Motor vehicles

With means for controlling operation responsive to...

Having controlling means adapted to interact with stationary...

180279, 318587, 36442402, 36442601, B60T 712, B62D 128

Patent

active

050369350

ABSTRACT:
A travel control device for an unmanned vehicle automatically travelling along a predetermined travel path. The travel control device comprises non-contact type and contact type obstacle sensors for detecting an obstacle in front of the unmanned vehicle, and the unmanned vehicle is stopped when an obstacle is detected. A working area is predetermined along the travel path, and entrance and exit marks are provided to indicate the working area. When the unmanned vehicle enters the working area, a detection of signals output by the non-contact type obstacle sensor is disabled, to avoid unnecessary stops in the specific area and maintain a smooth travel of the unmanned vehicle. Further, a time counter is provided for counting a time from when the unmanned vehicle is stopped to a time when the unmanned vehicle is restarted, and when the unmanned vehicle is restarted, the unmanned vehicle is caused to travel at a speed higher than a previous speed at which it was travelling before being stopped, to recover a delay time incurred by the stop.

REFERENCES:
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patent: 4042058 (1977-08-01), Cooper
patent: 4108269 (1978-08-01), Nakao
patent: 4284160 (1981-08-01), Deliban et al.
patent: 4546840 (1985-10-01), Yukishige et al.
patent: 4847774 (1989-07-01), Tomikawa et al.
patent: 4918362 (1990-04-01), Christensen et al.

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