Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific current responsive fault sensor
Reexamination Certificate
2008-05-13
2008-05-13
Sherry, Michael (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific current responsive fault sensor
C361S023000
Reexamination Certificate
active
11146352
ABSTRACT:
A current detection unit samples motor current at every cycle corresponding to a cycle of the highest processing speed of a CPU. A current integral calculation unit integrates the value of the sampled motor current over a sampling period to calculate and output a current integral to an abnormality determination unit. The abnormality determination unit determines whether the current integral is larger than a threshold. When the abnormality determination unit determines that the current integral is larger than the threshold, it generates a detection signal indicating an abnormality in the motor current and outputs the signal to a relay drive unit and a notification unit. The relay drive unit receives the detection signal to generate a signal for turning off a system relay. The notification unit receives the detection signal to generate and output a signal to display means provided outside a power supply apparatus.
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Benenson Boris
Toyota Jidosha & Kabushiki Kaisha
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