US Patent:
20110060466, Mar 10, 2011
Inventors:
William F. TANDROW - Simi Valley CA, US
Kurt P. ZIERHUT - Camarillo CA, US
Michael A. TEITEL - Ventura CA, US
Symon Man-Yiu TSUI - Thousand Oaks CA, US
Michael FECHTNER - Fillmore CA, US
Assignee:
HAAS AUTOMATION, INC. - Oxnard CA
International Classification:
G05D 15/01
E06B 3/00
E05F 15/20
G05D 3/12
US Classification:
700275, 49506, 49 31, 700302
Abstract:
A method of controlling the motion of a moveable door includes determining the direction that the door is moving with respect to its anticipated closed position, and based on the direction, regulating an amount of force that is available to the door for its motion. The method may further include monitoring the position of the door as it is moving, and adjusting the motion of the door and regulating the amount of force available to the door for its motion, based on the calculated difference between the door's position as detected during monitoring and its expected position.