ELECTRIC VEHICLE

WIPO Patent Application WO/2021/014961

A1

The present invention addresses the problem of obtaining an electric vehicle that can save energy and reduce heat generation of a switching element. An electric vehicle according to the present invention is provided with: an engine 11; a first power generator 12 driven by the engine; a first rectification circuit 14 connected to the output of the first power generator; a first direct current line 16 to which a direct current output of the first rectification circuit is inputted; a travel motor 10 connected to the first direct current line; a power conversion device 20 that converts a voltage of the first direct current line; a second direct current line 34 to which a direct current output obtained from the voltage converted by the power conversion device is inputted; an auxiliary device 33 connected to the second direct current line; and a control device 40 that controls the power conversion device. The control device performs control such that, when a voltage Vi of the first direct current line is less than or equal to a first threshold value Vc, an output power Po of the power conversion device is set to a rated power P1, and when the voltage Vi is greater than the first threshold value, the output power Po is set to less than the rated power.

KADOTA MITSUHIRO (JP)
ARAI MASATSUGU (JP)
KITAGUCHI ATSUSHI (JP)
FUKUDA NAOKI (JP)

PCT/JP2020/026526

January 28, 2021

July 07, 2020

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HITACHI CONSTRUCTION MACH CO (JP)

B60L1/00; B60K6/46; B60L50/15; B60L50/61; B60L58/10; B60W10/08; B60W10/26; B60W20/00; H02J7/00; H02M3/28

JPH0670198U	1994-09-30
JP2010098888A	2010-04-30
JP2019064450A	2019-04-25
JP2002330554A	2002-11-15
JP2010074913A	2010-04-02

HIRAKI & ASSOCIATES (JP)

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