Title:
ELECTROMOTIVE DRIVE TYPE WORK VEHICLE
Document Type and Number:
WIPO Patent Application WO/2019/039608
Kind Code:
A1
Abstract:
An electromotive drive type wheel loader (30) is provided with: a power generation motor (5) mechanically connected to an engine (1); a power generation inverter (6) that controls the power generation amount of the power generation motor (5); a travelling motor (7) electrically connected to the power generation motor; a travelling inverter (8) that controls the torque of the travelling motor (7); and a forward/rearward switch (103) that is operated to switch movement of a vehicle body between the forward movement and the rearward movement. The wheel loader (30) is provided with: a brake resistor (3); a chopper circuit (4) which, when the input voltage exceeds a brake setting voltage (Vb), electrically connects the power generation inverter (6) and the travelling inverter (8) to the brake resistor (3); and a main controller (100) which, during modulating operation of the wheel loader (30), outputs, to the power generation inverter (6), a power generation command for generating a voltage (V2) exceeding the brake setting voltage (Vb).
Inventors:
YOSHIHARA SHIGEYUKI (JP)
ITO NORITAKA (JP)
UTASHIRO HIROSHI (JP)
ITO NORITAKA (JP)
UTASHIRO HIROSHI (JP)
Application Number:
PCT/JP2018/031451
Publication Date:
February 28, 2019
Filing Date:
August 24, 2018
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
B60W10/08; B60K6/46; B60L7/00; B60W20/14; E02F9/20; H02P9/04; H02P101/25; H02P101/45
Domestic Patent References:
| WO2013122101A1 | 2013-08-22 | |||
| WO2013172062A1 | 2013-11-21 |
Attorney, Agent or Firm:
KAICHI IP (JP)
Download PDF:
Previous Patent: ELECTROLYSIS CELL AND ELECTRODE PLATE FOR ELECTROLYSIS CELL
Next Patent: LIGNIN DERIVATIVE COMPOUND AND USE THEREOF
Next Patent: LIGNIN DERIVATIVE COMPOUND AND USE THEREOF