Elevator door motor compensations

Details Elevator door motor compensations Elevator door motor compensations

1979-12-27

1981-11-17

Truhe, J. V.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 31, 318617, B66B 1308

Patent

active

043006620

ABSTRACT:
An elevator system includes a microprocessor-based cab controller mounted directly on an elevator car, which controls elevator door motion in response to the difference between elevator door velocity and a desired dictated door velocity. The signals driving the elevator motor include compensation signals for hoistway door spirators, static door friction, and variations in the door operator mechanism as a function of door position, and are generated, in the disclosed embodiment, to take into account the variation in door motion as a function of door motor motion. An exemplary elevator system, an exemplary microprocessor-based controller, and logic flowcharts for an overall door control program, as well as details of the invention herein are disclosed.

REFERENCES:
patent: 3376486 (1968-04-01), Caputo
patent: 3627080 (1971-12-01), Yuminaka et al.
patent: 3673482 (1972-06-01), Davey
patent: 3729668 (1973-04-01), Brette

Affiliated with

Also associated with

Rating

Elevator door motor compensations does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Elevator door motor compensations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elevator door motor compensations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1288937