Registers – Transfer mechanism – Traveling pawl
Patent
1973-09-28
1976-01-20
Morrison, Malcolm A.
Registers
Transfer mechanism
Traveling pawl
23515024, 246182B, 246187B, G06F 1548, B01L 308
Patent
active
039341259
ABSTRACT:
An automatic vehicle operation system which responds to a plurality of speed commands and a plurality of stopping commands. The vehicle is controlled to travel at one of a plurality of speeds in response to one of a plurality of speed commands. The vehicle can also be controlled to stop a predetermined distance after receipt of one of the two stopping commands. Which of the two stopping commands is received determines the distance over which the vehicle travels between receipt of the stopping command and the point at which the vehicle comes to rest. Regardless of which of the commands is received the vehicle is controlled so as to respect predetermined acceleration and jerk limits during periods of acceleration and deceleration. The acceleration control circuit is responsive not only to velocity rate of change but also to the grade over which the vehicle is traveling so as to limit the total acceleration of deceleration forces to a predetermined maximum. The jerk limit control circuit is responsive to the vehicle load and limits the rate of change of tractive effort to in light of the particular loading of the vehicle so as to limit jerk to a predetermined maximum.
The receipt of a stop command initiates the operation of a digital circuit to generate a stopping pattern which controls the subsequent velocity and position of the vehicle.
REFERENCES:
patent: 3300639 (1967-01-01), Bowman et al.
patent: 3334224 (1967-08-01), Allen et al.
patent: 3402289 (1968-09-01), Burke et al.
patent: 3519805 (1970-07-01), Thorne-Booth
patent: 3547499 (1970-12-01), Maskery
patent: 3562515 (1971-02-01), Oster
patent: 3639754 (1972-02-01), Kovalcik et al.
patent: 3655962 (1972-04-01), Koch
General Signal Corporation
Morrison Malcolm A.
Smith Jerry
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