Relay control system for electric vehicle and method for controlling relay of electric vehicle
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United States of America Patent
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Jul 7, 2015
Grant Date -
Jun 13, 2013
app pub date -
Oct 23, 2012
filing date -
Dec 9, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A relay control system for an electric vehicle includes an electric power line, a relay, an operation member, a state sensor, a rotational speed detector, a shift position detector, and a relay disconnection permitting device. The state sensor is configured to sense that a signal circuit through which a signal related to a state of the operation member flows is changed into a disconnecting operation state. The rotational speed detector is configured to detect a rotational speed of the electric motor. The shift position detector is configured to detect a shift position of the electric vehicle. The relay disconnection permitting device permits disconnection of the relay based on the rotational speed detected by the rotational speed detector and the shift position detected by the shift position detector if the state sensor senses that the signal circuit is changed into the disconnecting operation state.
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