Hybrid work vehicle with load dependent target state of charge
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United States of America Patent
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Mar 21, 2017
Grant Date -
Sep 24, 2015
app pub date -
Nov 6, 2013
filing date -
Nov 7, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
There are provided a work vehicle comprising a motor generator (6) driven by an engine, a hydraulic pump (4) driven by at least either of the motor generator and the engine, a work device (50) driven by hydraulic fluid from the hydraulic pump, a electric traction motor (9) driving wheels (61), an electrical storage device (11) connected to the motor generator and to the electric traction motor and charged electrically on the basis of a target SOC; and a control device (200) varying the target SOC for the electrical storage device (11) on the basis of total demanded power (Pf+Prun) of the hydraulic pump and the electric traction motor.
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