McGinn IP Law Group, PLLC
Vehicle battery charger and a fault diagnosis of relay
A vehicle battery charger for providing a charging current to a rechargeable vehicle battery which stores electric traction power includes a relay for interrupting the charging current, and fault diagnosing means for switching an operating condition of the relay to thereby diagnose a fault in the relay. At a time of starting and/or stopping a supply of the charging current, if a given condition is satisfied, the fault diagnosing means executes a diagnosis of the fault, or if the given condition is not satisfied, the fault diagnosing means does not execute a diagnosis of the fault.
HITACHI METALS, LTD.
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Takafumi Hiroyuki Hiroyuki Masayoshi
Kai Ito Yanagisawa Kaneyasu