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    • 9. 发明授权
    • Control device for hybrid construction machinery
    • 混合施工机械控制装置
    • US08874327B2
    • 2014-10-28
    • US13985118
    • 2012-01-05
    • Shinji IshiharaShinya ImuraMasatoshi HoshinoKazuo Fujishima
    • Shinji IshiharaShinya ImuraMasatoshi HoshinoKazuo Fujishima
    • G06F7/00E02F9/20E02F9/22
    • E02F9/22E02F9/2066E02F9/2075E02F9/2235E02F9/2246
    • Target rotation speed setup section for setting a target engine rotation speed; load detection for detecting a hydraulic pump load; an assist output computation section for calculating an assist output to be generated by a motor generator in accordance with a rotation speed deviation ΔN, which is the difference between an actual and target rotation speed, or in accordance with the hydraulic pump load; an absorption torque upper limit computation section for calculating an absorption torque upper limit value of the hydraulic pump; and an operation signal generation section for generating the operation signal to be output to a pump displacement adjustment device. When the rotation speed deviation ΔN is equal to or more than a setting NC determined in accordance with the assist output value, the absorption torque upper limit computation section reduces the absorption torque upper limit value of the hydraulic pump from the calculated value.
    • 目标转速设定部,设定目标发动机转速; 用于检测液压泵负载的负载检测; 辅助输出计算部分,用于根据作为实际和目标转速之差或根据液压泵负载的转速偏差Dgr; N计算由电动发电机产生的辅助输出; 吸收扭矩上限计算部,用于计算液压泵的吸收转矩上限值; 以及操作信号生成部,用于生成要输出到泵位移调节装置的操作信号。 当转速偏差&Dgr; N等于或大于根据辅助输出值确定的设定NC时,吸收转矩上限计算部分从计算值减小液压泵的吸收转矩上限值。
    • 10. 发明申请
    • HYBRID CONSTRUCTION MACHINE
    • 混合建筑机械
    • US20140199148A1
    • 2014-07-17
    • US13982563
    • 2012-01-05
    • Manabu EdamuraTakatoshi OokiTakako SatakeKoiji IshikawaShinya ImuraShinji Nishikawa
    • Shinya ImuraKouji IshikawaHidetoshi SatakeTakatoshi OokiShinji NishikawaManabu Edamura
    • E02F9/12
    • E02F9/123E02F9/2037E02F9/2095Y10S903/903Y10S903/93
    • In hybrid construction machine employing a hydraulic motor and an electric motor for the driving of the swing structure, satisfactory operability of a combined operation of the swing structure and other actuators is secured irrespective of the operating status of the electric motor.A control device of the hybrid construction machine executes control selected from: hydraulic/electric complex swing control for driving the swing structure by total torque of the electric motor and the hydraulic motor when a swing operating lever device is operated; and hydraulic solo swing control for driving the swing structure by the torque of the hydraulic motor alone when the swing operating lever device is operated. The control device controls drive torque or driving force of each of the electric motor, the hydraulic motor and a second hydraulic actuator so that the relationship between the position or the speed of the second hydraulic actuator and the swing angle or the swing speed of the swing structure in the combined operation when the swing operating lever device and a second operating lever device are operated at the same time during the hydraulic/electric complex swing control is substantially identical with the relationship in the combined operation during the hydraulic solo swing control.
    • 在使用液压马达和用于驱动摆动结构的电动机的混合动力施工机械中,无论电动机的运行状态如何,均可确保摆动结构和其它致动器的组合操作的可操作性。 混合动力施工机械的控制装置执行选择的控制装置:当操作摆动操作杆装置时,通过电动机和液压马达的总转矩来驱动摆动结构的液压/电动复合摇摆控制; 以及当操作摆动操作杆装置时单独通过液压马达的扭矩驱动摆动结构的液压独奏摆动控制。 控制装置控制电动机,液压马达和第二液压致动器中的每一个的驱动扭矩或驱动力,使得第二液压致动器的位置或速度与摆动角度或摆动摆动速度之间的关系 在液压/电气复合体摆动控制期间当摆动操作杆装置和第二操作杆装置同时操作时的组合操作中的结构与液压独奏摇摆控制期间的组合操作的关系基本相同。