发明名称 |
HYBRID WORK MACHINE |
摘要 |
Provided is a hybrid work machine capable of performing a warm-up operation on an electric storage device by charging and discharging while suppressing the occurrence of lug-down or over-revolution to an engine. The hybrid work machine includes: an engine; an assist motor mechanically connected to the engine, causing a discharge by generating a drive torque, and generating electric power by generating a brake torque; a hydraulic pump driven by a total torque of the engine and the assist motor; an electric storage device storing the electric power generated by the assist motor and supplying the electric power when the assist motor is discharged; and a controller outputting a torque command signal in order to control the drive torque or the brake torque of the assist motor. The hybrid work machine further includes a torque-command-value arithmetic unit calculating a hydraulic pump torque necessary to drive the hydraulic pump, and calculating the torque command signal that is equal to or lower than a value obtained by subtracting a preset minimum torque of the engine from the hydraulic pump torque. |
申请公布号 |
EP3141442(A1) |
申请公布日期 |
2017.03.15 |
申请号 |
EP20150789107 |
申请日期 |
2015.02.03 |
申请人 |
Hitachi Construction Machinery Co., Ltd. |
发明人 |
IMURA Shinya;HITA Masafumi;AMANO Hiroaki;ISHIDA Seiji;TAKEUCHI Ken;NAYA Itaru;TAKAHASHI Chiaki |
分类号 |
B60W10/08;B60K6/485;B60L11/14;B60W20/00;F02D29/00;F02D29/04;F02D29/06 |
主分类号 |
B60W10/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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