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1. 发明公开

EP2902551A1 Construction machine 有权
标题翻译：建筑机械
公开(公告)号：EP2902551A1
公开(公告)日：2015-08-05
申请号：EP15152144.0
申请日：2015-01-22
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Hijikata, Seiji , Ishikawa, Kouji , Ooki, Takatoshi , Imura, Shinya
IPC分类号： E02F9/22 , B66C13/20 , F15B21/14
CPC分类号： E02F9/2221 , E02F9/2095 , E02F9/2217 , E02F9/2228 , E02F9/2285 , E02F9/2296 , F15B21/082 , F15B21/14 , F15B2211/20523 , F15B2211/40515 , F15B2211/415 , F15B2211/426 , F15B2211/6316 , F15B2211/6651 , F15B2211/6658
摘要： Provided is a construction machine comprising an energy recovery device for recovering hydraulic fluid energy from a hydraulic actuator and being capable of achieving excellent operability even when the power of the prime mover is changed. The construction machine comprises an engine (1), a hydraulic pump (2), a plurality of hydraulic actuators (31 - 34), a plurality of control valves (41 - 44), a plurality of operating devices (71 - 74), an energy recovery device (80), an operation mode selector switch (76), an engine revolution speed dial (77), a pressure sensor (75), and a controller (90) which controls the flow rate of hydraulic fluid recovered by the energy recovery device based on input signals from the operation mode selector switch, the engine revolution speed dial and the pressure sensor.
摘要翻译：本发明提供一种建筑机械，其包括能量回收装置，该能量回收装置用于从液压致动器回收液压流体能量，并且即使在原动机的动力被改变时也能够实现优异的可操作性。该建筑机械包括发动机1，液压泵2，多个液压致动器31〜34，多个控制阀41〜44，多个操作装置71〜74，（80），运转模式选择开关（76），发动机转速刻度盘（77），压力传感器（75）和控制器（90），所述控制器基于来自操作模式选择器开关，发动机转速拨盘和压力传感器的输入信号的能量回收装置。

2. 发明公开

EP2503064A3 Hybrid construction machine 审中-公开
标题翻译：混合建筑机器
公开(公告)号：EP2503064A3
公开(公告)日：2017-08-02
申请号：EP12160621.4
申请日：2012-03-21
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Ooki, Takatoshi , Kajita, Yusuke , Satake, Hidetoshi , Ishida, Seiji , Izumi, Shiho , Ishikawa, Kouji , Okumura, Shinya , Edamura, Manabu
IPC分类号： E02F9/12 , E02F9/22 , E02F9/20
CPC分类号： E02F9/123 , E02F9/2095 , E02F9/2217 , E02F9/2296
摘要： Provided is a hybrid construction machine (driving the upper swing structure (20) using a hydraulic motor (27) and an electric motor (25) together) capable of regenerating the energy of the upper swing structure (20) in deceleration or stopping into electric power and using the regenerated electric power for assisting the hydraulic motor (27) for driving the upper swing structure (20), while also being capable of securing a satisfactory operational feeling equivalent to that in construction machines driving the upper swing structure (20) with the hydraulic motor (27) alone. Opening area characteristics of a meter-out restrictor (37MOa; 37MOc) and a bleed-off restrictor (37BO) of a swing directional control valve (37) are set so that their opening areas become larger than prescribed opening areas that are set to the construction machines driving the upper swing structure (20) with the hydraulic motor (37) alone. Torque of the electric motor (25) is controlled so that the total sum of actual torque (braking torque or acceleration torque) occurring in the hydraulic motor (27) and torque (braking torque or acceleration torque) of the electric motor (25) in deceleration or acceleration of the hydraulic motor (27) equals torque (braking torque or acceleration torque) occurring when the opening area of the meter-out restrictor (37MOa, 37MOc) or the bleed-off restrictor (37BO) is set at the prescribed opening area.
摘要翻译：本发明提供一种混合动力建筑机械（使用液压马达（27）和电动机（25）一起驱动上部回转体（20）），该回转体能够将上部回转体（20）的能量减速或停止为电动（20）驱动的液压电动机（27）的辅助动力，并且能够确保与在驱动上部回转体（20）的工程机械中相同的良好的操作感的同时，仅液压马达（27）。摆动方向控制阀（37）的出口节流限流器（37MOa; 37MOc）和泄放限流器（37BO）的开口面积特性设定为其开口面积大于规定的开口面积只用液压马达（37）驱动上部回转结构（20）的建筑机械。控制电动机（25）的转矩，使得在液压马达（27）中出现的实际转矩（制动转矩或加速转矩）和电动机（25）的转矩（制动转矩或加速转矩）的总和液压马达27的减速或加速度等于出口节流限流器37MOc或泄放限流器37BO的开口面积设定在规定开度时产生的转矩（制动转矩或加速转矩）区。

3. 发明公开

EP2503065A2 Hybrid construction machine 审中-公开
公开(公告)号：EP2503065A2
公开(公告)日：2012-09-26
申请号：EP12161030.7
申请日：2012-03-23
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Ooki, Takatoshi , Satake, Hidetoshi , Ishikawa, Kouji , Nishikawa, Shinji
IPC分类号： E02F9/12 , E02F9/22 , E02F9/20
CPC分类号： E02F9/2217 , B60K6/12 , B60K6/48 , B60W2300/17 , E02F9/123 , E02F9/2075 , E02F9/2095 , E02F9/2235 , E02F9/2296 , Y02T10/6208 , Y02T10/6221 , Y02T10/6282
摘要： Provided is a hybrid construction machine (driving the upper swing structure (20) using a hydraulic motor (27) and an electric motor (25) together) capable of regenerating the energy of the upper swing structure (20) in deceleration or stopping into electric power and using the regenerated electric power for assisting the driving of the upper swing structure (20), while also being capable of securing satisfactory operational feeling and operation capability even when the electric motor (25) does not operate. When the electric motor (25) is not driven, a controller (51) controls a hydraulic circuit system (40) (specifically, a swing direction/flow rate control valve (42), a center bypass cut valve and a regulator) so as to increase output torque of the hydraulic motor (27) by an amount corresponding to torque to be compensated for the non-driving of the electric motor (25) compared to cases where the electric motor (25) is driven.

4. 发明公开

EP2503065A3 Hybrid construction machine 审中-公开
标题翻译：混合建筑机器
公开(公告)号：EP2503065A3
公开(公告)日：2017-05-10
申请号：EP12161030.7
申请日：2012-03-23
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Ooki, Takatoshi , Satake, Hidetoshi , Ishikawa, Kouji , Nishikawa, Shinji
IPC分类号： E02F9/12 , E02F9/22 , E02F9/20 , B60K6/12 , B60K6/48
CPC分类号： E02F9/2217 , B60K6/12 , B60K6/48 , B60W2300/17 , E02F9/123 , E02F9/2075 , E02F9/2095 , E02F9/2235 , E02F9/2296 , Y02T10/6208 , Y02T10/6221 , Y02T10/6282
摘要： Provided is a hybrid construction machine (driving the upper swing structure (20) using a hydraulic motor (27) and an electric motor (25) together) capable of regenerating the energy of the upper swing structure (20) in deceleration or stopping into electric power and using the regenerated electric power for assisting the driving of the upper swing structure (20), while also being capable of securing satisfactory operational feeling and operation capability even when the electric motor (25) does not operate. When the electric motor (25) is not driven, a controller (51) controls a hydraulic circuit system (40) (specifically, a swing direction/flow rate control valve (42), a center bypass cut valve and a regulator) so as to increase output torque of the hydraulic motor (27) by an amount corresponding to torque to be compensated for the non-driving of the electric motor (25) compared to cases where the electric motor (25) is driven.
摘要翻译：本发明提供一种混合动力建筑机械（使用液压马达（27）和电动机（25）一起驱动上部回转体（20）），该回转体能够将上部回转体（20）的能量减速或停止为电动并且利用再生电力辅助上部旋转体20的驱动，并且即使在电动机25不工作的情况下也能够确保良好的操作感和操作性。当电动机25不驱动时，控制器51控制液压回路系统40（具体地说，摆动方向/流量控制阀（42），中央旁通切断阀和调节器），以便与驱动电动机（25）的情况相比，将液压马达（27）的输出扭矩增加与对于电动机（25）的不驱动而要补偿的扭矩对应的量。

5. 发明公开

EP2503064A2 Hybrid construction machine 审中-公开
标题翻译： Hybridbaumaschine
公开(公告)号：EP2503064A2
公开(公告)日：2012-09-26
申请号：EP12160621.4
申请日：2012-03-21
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Ooki, Takatoshi , Kajita, Yusuke , Satake, Hidetoshi , Ishida, Seiji , Izumi, Shiho , Ishikawa, Kouji , Okumura, Shinya , Edamura, Manabu
IPC分类号： E02F9/12 , E02F9/22 , E02F9/20
CPC分类号： E02F9/123 , E02F9/2095 , E02F9/2217 , E02F9/2296
摘要： Provided is a hybrid construction machine (driving the upper swing structure (20) using a hydraulic motor (27) and an electric motor (25) together) capable of regenerating the energy of the upper swing structure (20) in deceleration or stopping into electric power and using the regenerated electric power for assisting the hydraulic motor (27) for driving the upper swing structure (20), while also being capable of securing a satisfactory operational feeling equivalent to that in construction machines driving the upper swing structure (20) with the hydraulic motor (27) alone. Opening area characteristics of a meter-out restrictor (37MOa; 37MOc) and a bleed-off restrictor (37BO) of a swing directional control valve (37) are set so that their opening areas become larger than prescribed opening areas that are set to the construction machines driving the upper swing structure (20) with the hydraulic motor (37) alone. Torque of the electric motor (25) is controlled so that the total sum of actual torque (braking torque or acceleration torque) occurring in the hydraulic motor (27) and torque (braking torque or acceleration torque) of the electric motor (25) in deceleration or acceleration of the hydraulic motor (27) equals torque (braking torque or acceleration torque) occurring when the opening area of the meter-out restrictor (37MOa, 37MOc) or the bleed-off restrictor (37BO) is set at the prescribed opening area.
摘要翻译：提供一种混合式施工机械（使用液压马达（27）和电动马达25驱动上部摆动结构（20）），能够使上部摆动结构（20）的能量减速或停止成为电力并且使用再生电力来辅助用于驱动上摆动结构（20）的液压马达（27），同时还能够确保与驱动上摆动结构（20）的施工机械相当的令人满意的操作感觉，液压马达（27）。设置摆动方向控制阀（37）的出口限流器（37Maa; 37MOc）和泄放限制器（37BO）的开口面积特性使得它们的开口面积变得大于设定为施工机械单独用液压马达（37）驱动上部摆动结构（20）。控制电动机（25）的转矩，使得液压马达（27）中发生的实际转矩（制动转矩或加速转矩）与电动机（25）的扭矩（制动转矩或加速转矩）的总和在液压马达（27）的减速度或加速度等于当出口限制器（37Maa，37MOc）或泄放限制器（37BO）的开口面积被设定在规定开度时发生的转矩（制动转矩或加速力矩）区。

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