Title:
REGENERATIVE BRAKING SYSTEM AND ELECTRICALLY DRIVEN WORK VEHICLE USING SAME
Document Type and Number:
WIPO Patent Application WO/2022/014177
Kind Code:
A1
Abstract:
A regenerative braking system according to the present invention carries out control such that during a regenerative operation, power from a main machine side is supplied to an auxiliary machine side, and the voltage at the auxiliary machine side becomes a first voltage value predetermined on the basis of an operating voltage specification of an auxiliary machine device, an auxiliary-machine-side generator is stopped, the supply of power to the auxiliary machine side is stopped, and power of the auxiliary machine side is supplied to a power storage device; if the regenerative operation has been completed, supply of power to the auxiliary machine side from the main machine side is stopped, the auxiliary-machine-side generator is started and controlled such that the voltage at the auxiliary machine side becomes the first voltage value, power of the power storage device is supplied to the auxiliary machine side, and the voltage at the auxiliary machine side becomes a second voltage value that is higher than the first voltage value. Thereby, fluctuations in voltage supplied to the auxiliary machine when switching a regenerative operation of a running motor can be suppressed.
Inventors:
KADOTA MITSUHIRO (JP)
KUNITOMO YUUICHI (JP)
KITAGUCHI ATSUSHI (JP)
TANAKA TAKAAKI (JP)
FUKUDA NAOKI (JP)
KUNITOMO YUUICHI (JP)
KITAGUCHI ATSUSHI (JP)
TANAKA TAKAAKI (JP)
FUKUDA NAOKI (JP)
Application Number:
PCT/JP2021/020556
Publication Date:
January 20, 2022
Filing Date:
May 28, 2021
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
B60L1/00; B60K6/48; B60L7/14; B60L9/18; B60L50/10; B60W10/08; B60W20/00; B60W20/13; H02J7/00; H02J7/14
Foreign References:
| JP2019064450A | 2019-04-25 | |||
| JP2003230201A | 2003-08-15 | |||
| JP2010074913A | 2010-04-02 |
Attorney, Agent or Firm:
KAICHI IP (JP)
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