Electricity: motive power systems – Positional servo systems – With particular 'error-detecting' means
Patent
1989-12-26
1992-01-21
Ip, Paul
Electricity: motive power systems
Positional servo systems
With particular 'error-detecting' means
318632, 36442602, 303 92, 303 95, 303119R, 361 92, B60T 804, B60T 888
Patent
active
050830759
ABSTRACT:
An electromagnetically operated control system includes an actuator having an electromagnetic solenoid which exerts an electromagnetic force of the magnitude corresponding to the amount of electricity input to the solenoid, and a control circuit for controlling the amount of input electricity. The solenoid includes a pair of coils and the control circuit is changed over between a plurality of states including one state in which half of the amount of input electricity is applied to both coils, respectively, and another state in which upon a failure in either one of the coils the whole amount of input electricity is applied to the other coil. This control circuit assures a normal level of electromagnetic force, even upon a failure in one of the coils, with use of the normal one coil which is then applied with the whole of input electricity.
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Inagaki Hiromi
Sato Makoto
Honda Giken Kogyo Kabushiki Kaisha
Ip Paul
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