Method and apparatus for stall detection

Details Method and apparatus for stall detection Method and apparatus for stall detection

2008-12-19

2011-10-18

Ip, Paul (Department: 2837)

Electricity: motive power systems

Synchronous motor systems

Brushless motor closed-loop control

C318S430000, C318S432000, C180S006500

Reexamination Certificate

active

08040091

ABSTRACT:
Stall detection apparatus for an electric motor controller has an input for receiving a drive error flag indicating if the controller is unable to achieve the required motor velocity and an input for receiving a signal in order to measure, directly or indirectly, the actual motor velocity. The actual motor velocity is determined in order to indicate whether the motor is stationary and, only if so, a stall signal is outputted in order to indicate that said motor has stalled.

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patent: 2005/0258681 (2005-11-01), Fulks et al.
patent: 2007/0114965 (2007-05-01), Kutsuna et al.

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