The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 1998
Filed:
Aug. 27, 1996
Burkhard Braasch, Berlin, DE;
Marvin Dehmlow, Berlin, DE;
Jurgen Dieluweit, Berlin, DE;
Christoph M Ernecke, Berlin, DE;
Thomas Gietzold, Berlin, DE;
Alberto Vecchiotti, Middletown, CT (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
A load compensation calibration method for an elevator controller includes the steps of moving an elevator car in a first direction, the first direction a first creep speed region; determining the time to travel a given distance; during the first run; determining a first actual creep speed of the first creep speed region; determining a difference between a dictated creep speed and the first actual creep speed; determining a first compensation frequency for minimizing the difference between the dictated creep speed and the first actual creep second; moving the elevator car in a second direction, the speed direction including a second creep speed region; determining the time to travel a given distance during the second run; determining a second actual creep speed of the second creep speed region; determining a difference between a dictated creep speed and the second actual creep speed; determining a second compensation frequency for minimizing the difference between the dictated creep speed and the second actual creep speed; and creating a load compensation characteristic in response to the time to travel a given distance and the first and second compensation frequencies.