HYBRID CONSTRUCTION MACHINE

WIPO Patent Application WO/2020/044921

A1

A backhoe 1 comprises: an engine 2; an engine ECU 21; a hydraulic pump that is driven by the engine 2; a motor generator 3 that assists in the driving of the engine 2 during powering and generates electric power during regeneration; a battery 32 that is charged with electric power generated by the motor generator 3 or discharges the power; an inverter 31a that controls the output of the motor generator 3; and a motor generator control command device 5 that generates a control command and transmits the control command to the motor generator 3 via the inverter 31a. The motor generator control command device 5 is provided with: a control command generation unit 51 that generates the control command on the basis of a load factor deviation that is the difference between the target engine load factor of the engine 2 and the actual engine load factor; and a control command correction unit 52 that corrects the load factor deviation on the basis of a rotational speed deviation that is the difference between the target engine rotational speed of the engine 2 and the actual engine rotational speed.

HARA NAOHIRO (JP)
EGUCHI SHINGO (JP)
YAMANAKA KEISHI (JP)
FUJIMORI TATSUYA (JP)
YAMADA MASAKI (JP)
KANEDA KENSUKE (JP)

PCT/JP2019/029931

March 05, 2020

July 31, 2019

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YANMAR CO LTD (JP)

B60W20/10; B60K6/48; B60L50/16; B60W10/06; B60W10/08; E02F9/20; F02D29/00; F02D29/04

JP2013095246A	2013-05-20
JP5594748B2	2014-09-24
JP2011246955A	2011-12-08
JP2016159785A	2016-09-05

UNIUS PATENT ATTORNEYS OFFICE (JP)

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