Title:
AUTOMATIC DOOR OPENING/CLOSING CONTROL DEVICE
Document Type and Number:
Japanese Patent JP3473470
Kind Code:
B
Abstract:
PROBLEM TO BE SOLVED: To provide an automatic door opening/closing control device capable of preventing abnormal action of a linear motor in a no-load condition.
SOLUTION: A speed Vab when a needle is moved from a position (a) where a magnetism detection signal is changed to (b) is determined, a step S14 is taken when Vab≥V, and it is determined if the needle is overturned to be moved from the position (b) where the magnetism detection signal is changed to (a). A speed Vba when it is moved from the position (b) to (a) is determined, and it is determined if it is a preset speed V or more or not. When Vba≥V, a step S18 is taken to determine abnormal action in which the needle is moved to reciprocate at high speed, and a needle action abnormality detection signal is outputted to a main control device. In a step S20, the main control device outputs a motor stop signal to a motor control circuit to immediately stop the needle.
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Inventors:
Inagaki, Hiroshi
Application Number:
JP1999000007793
Publication Date:
September 19, 2003
Filing Date:
January 14, 1999
Export Citation:
Assignee:
TOYOTA AUTO BODY CO LTD
International Classes:
E05F15/18; H02K41/03; H02P7/00; H02P25/06; E05F15/00; H02K41/03; H02P7/00; H02P25/02; (IPC1-7): E05F15/18; H02K41/03; H02P7/00
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