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1. (WO2018088354) HYBRID CONSTRUCTION MACHINE

Pub. No.:    WO/2018/088354    International Application No.:    PCT/JP2017/039913
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Tue Nov 07 00:59:59 CET 2017
IPC: B60W 10/26
B60L 3/00
B60L 11/14
B60L 11/18
B60W 10/08
B60W 20/00
B60W 20/13
E02F 9/20
H01M 10/44
H01M 10/48
H02J 7/00
H02J 7/04
Applicants: HITACHI CONSTRUCTION MACHINERY CO., LTD.
日立建機株式会社
Inventors: HITA Masafumi
日田 真史
IMURA Shinya
井村 進也
Title: HYBRID CONSTRUCTION MACHINE
Abstract:
An HCU (37) has: a battery low-temperature reduced output calculation unit (71A) that determines a battery low-temperature reduced output (PbL), which increases in value as the battery temperature (Tb) decreases, when an electrical storage device (31) is assessed to be in a low-temperature state according to the battery temperature (Tb); a hydraulic fluid low-temperature reduced output calculation unit (71B) that determines a hydraulic fluid low-temperature reduced output (PoL), which increases in value as the hydraulic fluid temperature (To) decreases, when a hydraulic fluid is assessed to be in a low-temperature state according to the hydraulic fluid temperature (To); and an output command calculation unit (80) that controls vehicle body operations on the basis of the sum of the battery low-temperature reduced output (PbL) and the hydraulic fluid low-temperature reduced output (PoL).