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Patent Searching and Data


Title:
POWER REGENERATION SYSTEM FOR WORK VEHICLES
Document Type and Number:
WIPO Patent Application WO/2019/064703
Kind Code:
A1
Abstract:
The present invention makes effective use of regenerative electrical power without providing a high-voltage DC line with a power storage device such as a battery. A power regeneration system for work vehicles comprises: a first generator (12) and a second generator (31) which are driven by the engine (11); a first electrical circuit (C1) for supplying electrical power to traveling motors (10L, R); a second electrical circuit (C2) for supplying electrical power to an auxiliary machine (35); a step-down device (21) which supplies electrical power from the first electrical circuit to the second electrical circuit; and a controller (51) which determines whether the travel mode of a work vehicle is the powering mode or the regenerative mode and controls the drive of the step-down device. In the regenerative mode, the controller supplies regenerative electrical power from the first electrical circuit to the second electrical circuit via the step-down device, and drives the auxiliary machine with the regenerative electrical power.

Inventors:
TANAKA SHINTAROU (JP)
ARAI MASATSUGU (JP)
FUKUDA NAOKI (JP)
TANAKA TAKAAKI (JP)
SHIMIZU YUKIAKI (JP)
Application Number:
PCT/JP2018/021375
Publication Date:
April 04, 2019
Filing Date:
June 04, 2018
Export Citation:
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Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
B60K6/34; B60W10/08; B60K6/46; B60L7/14; B60L15/20; B60W10/30; B60W20/00
Foreign References:
JPH10174201A1998-06-26
JP2014072913A2014-04-21
JP2006280110A2006-10-12
JP2012121555A2012-06-28
JP2014176167A2014-09-22
JP2000299901A2000-10-24
JP2000299901A2000-10-24
Other References:
See also references of EP 3640103A4
Attorney, Agent or Firm:
THE PATENT BODY CORPORATE TAKEWA INTERNATIONAL PATENT OFFICE (JP)
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