Title:
ENERGY RECUPARTION SYSTEM AND METHOD FOR CONSTRUCTION EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2019/093537
Kind Code:
A1
Abstract:
The present invention provides an energy recuperation system for construction equipment, the system including: an actuator driving upward and downward operations of a work unit; an accumulator connected to the actuator; and a controller determining a predicted downward mode associated with the downward operation of the work unit, regulating a dischargeable lowest limit pressure of the accumulator to a target pressure corresponding to the predicted downward mode, and charging the accumulator having the dischargeable lowest limit pressure regulated to the target pressure with pressurized oil discharged from the actuator during the downward operation of the work unit to recuperate energy, and an energy recuperation method.
Inventors:
KIM DONGSOO (KR)
Application Number:
PCT/KR2017/012624
Publication Date:
May 16, 2019
Filing Date:
November 08, 2017
Export Citation:
Assignee:
VOLVO CONSTR EQUIP AB (SE)
KIM DONGSOO (KR)
KIM DONGSOO (KR)
International Classes:
E02F9/22; E02F9/20
Foreign References:
| US20140208728A1 | 2014-07-31 | |||
| US20040118623A1 | 2004-06-24 | |||
| US20160002889A1 | 2016-01-07 | |||
| US20170009428A1 | 2017-01-12 | |||
| CN105715596A | 2016-06-29 | |||
| US20160238041A1 | 2016-08-18 | |||
| EP1433648A2 | 2004-06-30 |
Other References:
See also references of EP 3707313A4
Attorney, Agent or Firm:
KIM, Seon-Min (KR)
Download PDF:
Previous Patent: BATTERY CONSUMPTION OPTIMISATION SYSTEM FOR INTERNET OF THINGS TERMINAL
Next Patent: HYDRAULIC CIRCUIT
Next Patent: HYDRAULIC CIRCUIT