Title:
REGENERATIVE BRAKING SYSTEM AND ELECTRICALLY DRIVEN WORK VEHICLE USING SAME
Document Type and Number:
WIPO Patent Application WO/2020/116272
Kind Code:
A1
Abstract:
According to the present invention, a power regeneration device 21 that converts the power of a master DC line 16 to which a master generator 12 is connected via a rectifier circuit 14, and that supplies power to a slave DC line 34 to which a slave generator 31 is connected via a rectifier circuit 32 comprises a plurality of power conversion modules 221 to 22N in which input units 221a to 22Na are connected in series. The master generator 12 and a power consuming device 15 are controlled such that the voltage input to the power regeneration device 21 does not exceed a voltage upper limit value Vm. When a part of the plurality of power conversion modules 221 to 22N is stopped, the positive terminal (+) and the negative terminal (-) of the input unit of the power conversion module to be stopped are short-circuited by a bypass device, and the voltage upper limit value Vm is reduced. Thereby, the continuity of operation can be improved while preventing an increase in the size of the device.
Inventors:
KADOTA MITSUHIRO (JP)
ARAI MASATSUGU (JP)
SATOU TAKAYUKI (JP)
FUKUDA NAOKI (JP)
ARAI MASATSUGU (JP)
SATOU TAKAYUKI (JP)
FUKUDA NAOKI (JP)
Application Number:
PCT/JP2019/046336
Publication Date:
June 11, 2020
Filing Date:
November 27, 2019
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
B60W10/08; B60K6/46; B60L7/10; B60L50/15; B60L50/61; B60W20/13; B60W20/14; B60W20/50
Foreign References:
| JP2008113548A | 2008-05-15 | |||
| JP2018152172A | 2018-09-27 | |||
| JP2009033943A | 2009-02-12 | |||
| JP2015098746A | 2015-05-28 | |||
| JP2009033943A | 2009-02-12 |
Other References:
See also references of EP 3892507A4
Attorney, Agent or Firm:
KAICHI IP (JP)
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