System for safely and automatically controlling the distance bet

Details System for safely and automatically controlling the distance bet System for safely and automatically controlling the distance bet

1992-12-04

1995-02-14

Le, Mark T.

Railway switches and signals

Cab signal or train control

Magnetic rail

246182R, 246182B, 246182C, B61L 300

Patent

active

053887891

ABSTRACT:
The present invention provides a system for automatically controlling the distance between vehicles following each other on the same drive track which includes in each vehicle a drive device, brake device, distance sensing device, vehicle speed measuring device, and control device. Paralleling the drive track are a neutral rail and a control rail. The drive device drives the vehicle. The brake device brakes the vehicle. The distance sensing device generates a distance variable. The vehicle speed measuring device measures a speed of the vehicle, and generates speed signals based thereon. The control device controls the drive device to drive the vehicle at a speed based on a speed control variable. The control device generates the speed control variable based on the distance variable. The speed control variable is less than the distance variable. The control device also controls the brake device to brake the vehicle when a speed signal is greater than a maximum permissible speed; the maximum permissible speed being dependent on the distance variable.

REFERENCES:
patent: 3817344 (1974-06-01), Asano et al.
patent: 3835950 (1974-09-01), Asano et al.
patent: 4133505 (1979-01-01), Bongiorno
patent: 4956779 (1990-09-01), Rutherford
Wampfler, Anti-Collision Device No. 80230, 1990.

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