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:
Dec. 29, 2009
Filed:
May. 16, 2006
Masunori Shibata, Tokyo, JP;
Masunori Shibata, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A control apparatus for an elevator has a speed command issuing portion, a movement control portion, and an acceleration limiting portion. The speed command issuing portion calculates a speed command for controlling a speed of a car. The movement control portion controls a movement of the car based on the speed command. The acceleration limiting portion compares drive information corresponding to an output of a drive device during the movement of the car with a preset limit value to determine whether or not an acceleration of the car can be increased. The speed command issuing portion calculates, based on information from the acceleration limiting portion, a speed command to stop the acceleration from increasing when the drive information reaches the limit value.