Encoder failure detection

Details Encoder failure detection Encoder failure detection

2007-02-20

2007-02-20

Thompson, Jewel V. (Department: 2855)

Measuring and testing

Dynamometers

Responsive to torque

Reexamination Certificate

active

10903492

ABSTRACT:
An encoder failure detector system and method for detecting failure of an encoder at near-zero rotational speeds. For example, in one embodiment a failure is indicated if a torque command exceeds a selected threshold for a selected period of time and no movement of a rotor is detected during the selected period of time.

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