Power control device and hybrid construction machine provided with same
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United States of America Patent
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Oct 31, 2017
Grant Date -
Jul 28, 2016
app pub date -
Aug 20, 2014
filing date -
Aug 27, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
In a power control device, when the necessary power is greater than an upper limit value and either the integral power value or the duration time of an assist provided by an electric storage device during a continuous assist by the electric storage device exceeds a predetermined first threshold value, a controller performs a first control of reducing an assist power by the electric storage device to a value smaller than an assist power for the regular control and greater than zero. Further, when the necessary power is greater than the upper limit value and either the integral power value or the duration time exceeds a predetermined second threshold value greater than the first threshold value, the controller performs a second control of setting the assist power to zero.
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