Title:
REGENERATION CONTROL DEVICE FOR WORK VEHICLES AND REGENERATION CONTROL METHOD FOR WORK VEHICLES
Document Type and Number:
WIPO Patent Application WO/2013/080633
Kind Code:
A1
Abstract:
In order to provide a regeneration control device for work vehicles which is capable of preventing the operational discomfort and uneasiness of an operator by attenuating the disparity between driving performance during regeneration, i.e. when kinetic energy is stored as hydraulic energy in an accumulator, and driving performance during non-regeneration, a regeneration control device for work vehicles is equipped with: a hydrostatic transmission (HST) circuit (10) in which a HST pump (2) coupled to a driving source (1), and a HST motor (3) coupled to a wheel (54) are closed by HST lines (4A, 4B); a regeneration accumulator (8) which converts and stores kinetic energy during deceleration as hydraulic energy, and which supplies the stored hydraulic energy to a regeneration motor (7) coupled to the driving source (1); a regeneration valve (9) which forms a connection between the HST lines (4A, 4B) and the regeneration accumulator (8); and a controller (20) for variably controlling motor capacity during regeneration, i.e. when the regeneration valve (9) is open and regenerated hydraulic energy is being stored in the regeneration accumulator (8), such that brake torque during regeneration and brake torque during non-regeneration are the same.
Inventors:
MARUYAMA JUN (JP)
MINATO MASAHIRO (JP)
MINATO MASAHIRO (JP)
Application Number:
PCT/JP2012/073703
Publication Date:
June 06, 2013
Filing Date:
September 14, 2012
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
MARUYAMA JUN (JP)
MINATO MASAHIRO (JP)
MARUYAMA JUN (JP)
MINATO MASAHIRO (JP)
International Classes:
E02F9/22; B60K17/10; B60T1/10; E02F9/20; F15B11/04; F15B21/14; F16H61/4096; F16H61/42
Domestic Patent References:
| WO2009132765A1 | 2009-11-05 |
Foreign References:
| JP2011220390A | 2011-11-04 | |||
| JP2009275854A | 2009-11-26 | |||
| JP2009293745A | 2009-12-17 | |||
| JP2008215581A | 2008-09-18 |
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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Claims: