Elevator profile selection based on absence or presence of passe

Details Elevator profile selection based on absence or presence of passe Elevator profile selection based on absence or presence of passe

1990-09-17

1993-08-31

Stephan, Steven L.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187118, B06B 128

Patent

active

052411419

ABSTRACT:
An elevator system including variable speed motive means is disclosed wherein the motive means is controlled in response to a selected motion profile to effect desired operation of the elevator car. Multiple elevator car motion profiles are stored and depending upon whether or not an occupant is present in the elevator car, either a comfortable high quality ride profile having an increased flight time and lower acceleration and jerk rates or a high performance profile having a decreased flight time and higher acceleration and jerk rates is selected. If no passengers are detected in the elevator car by sensing the weight of the elevator car and its occupants, and by sensing the lack of car calls, then the elevator car is free to be dispatched to a floor having a hall call at a high performance rate to minimize the flight time to reach that floor.

REFERENCES:
patent: 3561571 (1971-02-01), Gingrich
patent: 3735221 (1973-05-01), Bell et al.
patent: 3891064 (1975-06-01), Clark
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patent: 4193478 (1980-03-01), Keller et al.
patent: 4527662 (1985-07-01), Doane et al.
patent: 4658935 (1987-04-01), Holland
patent: 4751984 (1988-06-01), Williams et al.
G. C. Barney and S. M. dos Santos "Lift Traffic Analysis Design & Control", pub. by Peter Peregrinus Ltd. Southgate House, Stevenage, Herts. SG1 1HQ England (1977).

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