Electricity: motive power systems – Automatic and/or with time-delay means – Movement – position – or limit-of-travel
Patent
1997-02-20
1999-06-29
Ip, Paul
Electricity: motive power systems
Automatic and/or with time-delay means
Movement, position, or limit-of-travel
318469, 318281, H02P 300
Patent
active
059172991
ABSTRACT:
A motor drive control device, comprises: a switch which operates a motor; a motor which raises and lowers a door glass; a pulse signal generating device which synchronizes with the rotation of the motor and generates a pulse signal; and a determining device which, in a case in which there is a predetermined difference between this pulse signal and a normal pulse signal which is generated by synchronizing with the rotation of said motor, determines that the pulse signal generating device is failed. Therefore, in a case in which it is determined that the pulse signal generating device is failed and the switch is operated so that the motor raises the door glass, raising of the door glass can be stopped.
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Inagaki Osamu
Ito Shigeji
Kumagai Katsuhide
Mizukami Noboru
Obata Yousuke
Ip Paul
Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
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