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1. (WO2018047270) REGENERATIVE BRAKING DEVICE AND DUMP TRUCK

Pub. No.:    WO/2018/047270    International Application No.:    PCT/JP2016/076427
Publication Date: Fri Mar 16 00:59:59 CET 2018 International Filing Date: Fri Sep 09 01:59:59 CEST 2016
IPC: B60L 7/06
B60K 11/06
Applicants: HITACHI CONSTRUCTION MACHINERY CO., LTD.
日立建機株式会社
Inventors: TAKADA, Tomonori
高田 知範
IKARI, Takanobu
井刈 孝信
IKIMI, Takashi
伊君 高志
NAKAMURA, Akihiro
中村 明博
ARAI, Masatsugu
荒井 雅嗣
FUKUDA, Naoki
福田 直紀
TANAKA, Takaaki
田中 貴照
Title: REGENERATIVE BRAKING DEVICE AND DUMP TRUCK
Abstract:
A regenerative braking device of a dump truck is provided with: an engine; a first generator and a second generator that are driven by the engine; a travel motor driven by the generated power of the first generator; and fan motors to which the generated power of the second generator is input via a first rectifier circuit. The regenerative braking device is further provided with: a resistor body to which the regenerated power of the travel motor during regenerative braking is supplied and which is cooled by fans driven by the fan motors and converts electric energy to thermal energy to release heat; and a DC/DC converter that inputs a part of the regenerated power supplied to the resistor body to the output lines of the first rectifier circuit via a second rectifier circuit.