Title:
BATTERY CHARGING SYSTEM FOR HYBRID CONSTRUCTION MACHINERY BY USING ROTATIONAL FORCE OF FAN AND CHARGING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2014/007413
Kind Code:
A1
Abstract:
The present invention relates to a charging method for charging a battery of hybrid construction machinery by using rotational force of a fan and a system therefor, the charging method for a system for charging a battery of hybrid construction machinery including a predetermined fan and a controller for controlling a brake system of the fan and a battery for charging electric energy, comprises the steps of: controlling the brake system in order to decrease the rotation speed of the fan to a target rotation speed when a measured actual rotation speed of the fan is lower than a current target rotation speed obtained by the controller according to a current cooling water temperature, a hydraulic oil pressure temperature, and an engine intake air temperature; and charging the battery with electric energy according to a rotational force generated when the rotation speed of the fan decreases from the measured actual rotation speed of the fan to the target rotation speed through the control by the brake system. Thus, since an engine operating time is shortened by storing electric energy generated due to the rotational force of the fan in the battery, fuel consumption can be reduced.
Inventors:
OK DONG-CHEOL (KR)
PARK SEONG-CHEOL (KR)
PARK SEONG-CHEOL (KR)
Application Number:
PCT/KR2012/005339
Publication Date:
January 09, 2014
Filing Date:
July 05, 2012
Export Citation:
Assignee:
VOLVO CONSTR EQUIP AB (SE)
OK DONG-CHEOL (KR)
PARK SEONG-CHEOL (KR)
OK DONG-CHEOL (KR)
PARK SEONG-CHEOL (KR)
International Classes:
B60W10/26; B66F9/24; H02J7/00
Foreign References:
| JP2008037334A | 2008-02-21 | |||
| JP2002223505A | 2002-08-09 | |||
| JP2000110779A | 2000-04-18 | |||
| JPH11158917A | 1999-06-15 | |||
| KR20100024584A | 2010-03-08 | |||
| KR20110084960A | 2011-07-26 |
Other References:
See also references of EP 2871106A4
Attorney, Agent or Firm:
YOON, Eui-Seoup (KR)
윤의섭 (KR)
윤의섭 (KR)
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