ELECTRIC WORK VEHICLE

WIPO Patent Application WO/2023/127320

A1

This electric work vehicle comprises: a battery (4); an inverter (14) that converts the output of the battery (4) to AC power; a motor (M) that is driven by the converted AC power; a traveling device (42) that is driven by the motor (M); a control unit (44) that drives the inverter (14) in accordance with rotational speed information indicating the rotational speed of the motor (M) and a required rotational speed required to the motor (M) and thereby controls the current flowing through the motor (M); a DC/DC converter (71) that converts the output voltage of the battery (4) to a voltage that can be applied to the control unit (44); and a current limiting unit (73) that limits the current flowing through the motor (M) when the temperature of the inverter (14) is higher than a preset temperature. When at least either one of the temperature of the inverter (14), the temperature of the motor (M), and the temperature of the DC/DC converter (71) is higher than the preset temperature, the control unit (44) limits the current flowing through the motor (M).

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TAKASE SHUNYA (JP)
YAMANAKA YUKIFUMI (JP)
TAMBA DAIKI (JP)

PCT/JP2022/041713

July 06, 2023

November 09, 2022

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KUBOTA KK (JP)

B60L1/00; B60K1/04; B60L3/00; B60L50/60; B60L58/12; B60L58/24

JPH0787602A	1995-03-31
JP2013133060A	2013-07-08
JP2015091147A	2015-05-11

R&C IP LAW FIRM (JP)

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