In-vehicle electronic control unit
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United States of America Patent
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Sep 1, 2015
Grant Date -
Apr 18, 2013
app pub date -
Mar 27, 2012
filing date -
Oct 18, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
An in-vehicle electronic control unit is fed via a power supply relay energized when a power supply switch is closed while the vehicle is in motion. When a filler lid open command switch is closed in a vehicle stop state in which the power supply switch is opened, the power supply relay is energized and a microprocessor starts to operate and continues to energize the power supply relay by generating a self-hold command output, and opens a filler lid as a safety door after performing decompression processing control of a fuel tank. Then, the filler cap is opened and a refuel operation is performed manually. Thereafter, the microprocessor stops the self-hold command output when the filler cap and the filler lid are closed or a predetermined time has elapsed.
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