Work vehicle and control method for work vehicle
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United States of America Patent
Stats
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Sep 19, 2017
Grant Date -
Sep 1, 2016
app pub date -
Dec 17, 2014
filing date -
Jan 31, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A power transmission device of a work vehicle includes a generator, a motor, and an energy storage unit. The energy storage unit stores electricity generated by the generator. A forward/backward travel switch operation device receives an instruction for forward or backward travel from an operator. A vehicle speed detection unit detects the speed of the vehicle. A control unit includes an energy management requirement determination unit. The energy management requirement determination unit determines, on the basis of the difference between a target electricity storage amount and a current electricity storage amount in the energy storage unit, the energy management required power required by the power transmission device for charging the energy storage unit. The energy management requirement determination unit increases the target electricity storage amount when a first travel direction according to the instruction and a second travel direction determined from the vehicle speed are different.
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