Title:
CONTROL SYSTEM FOR HYBRID CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2014/027583
Kind Code:
A1
Abstract:
A control system for a hybrid construction machine is provided with: an operation valve for boom operation; a variable capacity fluid pressure motor; a distribution mechanism for adjusting the flow rate ratio distributed to the fluid pressure motor; a motor generator that integrally rotates with the fluid pressure motor; a variable capacity assist pump that integrally rotates with the motor generator; a distribution mechanism control unit for controlling the distribution mechanism; a tilt angle control unit for controlling the tilt angle of the fluid pressure motor and the assist pump; and a motor generator control unit for keeping the speed of a motor generator at a target speed. The target speed during boom regenerative control is set to be higher than the target speed when only assist control is carried out.
Inventors:
KAWASAKI HARUHIKO (JP)
EGAWA MASAHIRO (JP)
EGAWA MASAHIRO (JP)
Application Number:
PCT/JP2013/071179
Publication Date:
February 20, 2014
Filing Date:
August 05, 2013
Export Citation:
Assignee:
KAYABA INDUSTRY CO LTD (JP)
International Classes:
F15B21/14; E02F9/20; E02F9/22; H02P9/04
Foreign References:
| JP2009235717A | 2009-10-15 | |||
| JP2008157407A | 2008-07-10 | |||
| JP2003074517A | 2003-03-12 |
Attorney, Agent or Firm:
GOTO, Masaki et al. (JP)
Masaki Goto (JP)
Masaki Goto (JP)
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