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:
May. 05, 2015
Filed:
Oct. 14, 2004
Gianluca Foschini, Ravenna, IT;
Sandro Bonfiglioli, Bologna, IT;
Leonida Lorquando, Bologna, IT;
Ronnie Thebeau, Haddam, CT (US);
Sally Mahoney, New Hartford, CT (US);
Gianluca Foschini, Ravenna, IT;
Sandro Bonfiglioli, Bologna, IT;
Leonida Lorquando, Bologna, IT;
Ronnie Thebeau, Haddam, CT (US);
Sally Mahoney, New Hartford, CT (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
An elevator system () includes a propulsion power assembly () with a power rating below that required to move a fully loaded elevator car () using a contract or design motion profile. One example propulsion power assembly () uses more than one motion profile based upon existing load conditions. One example uses a first motion profile including a first power parameter limit for load conditions at or below a selected load threshold that is less than a maximum load capacity of the car (). The propulsion power assembly () uses a second motion profile with a lower power parameter limit for other load conditions. In one example, electrical current is the power parameter selected as a decision parameter dictating which profile to select based on an existing load. Another example propulsion power assembly () selects at least one of a speed limit or an electrical current limit based on an existing load and maintains a speed to stay within the selected limit.