Failure detection device for rotation angle detection sensor

Details Failure detection device for rotation angle detection sensor Failure detection device for rotation angle detection sensor

2006-05-26

2009-06-30

Raevis, Robert R (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Angle, direction, or inclination

Reexamination Certificate

active

07552615

ABSTRACT:
A failure detection device for detecting a failure of a rotation angle detection sensor, which sensor detects a rotational angle through which a rotary member has rotated, the failure detection device including a first detection element which has an output which increases as the rotational angle of the rotary member increases, a second detection element which has an output that decreases as the rotational angle of the rotary member increases, and a detecting unit that detects the failure of either the first detection element or the second detection element by comparing a calculated value, based on the outputs of both of the first and second detection elements, with at least one predetermined value.

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