Rotating-body control device

Details Rotating-body control device Rotating-body control device

2006-08-08

2006-08-08

Luu, Thanh X. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C327S002000, C327S227000

Reexamination Certificate

active

07087890

ABSTRACT:
A P-ECU controls an actuator which drives a shift control mechanism. An encoder signal acquisition unit acquires signals output from an encoder which detects a rotational angle of the actuator. A counter calculates a count value from the output signals of the encoder. An energization control unit controls energization to the actuator. A first phase-matching unit uses the Z-phase signal of the encoder to match the count value with energized phases so as to find a correspondence therebetween and a second phase-matching unit matches the count value with energized phases to find a correspondence therebetween without using the Z-phase signal of the encoder. If the first phase-matching unit detects an abnormality of the encoder, the second phase-matching unit subsequently performs phase matching.

REFERENCES:
patent: 2004/0119506 (2004-06-01), Ioi
patent: 1-140113 (1989-09-01), None
patent: 5-294587 (1993-11-01), None
patent: 11-64040 (1999-03-01), None

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