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21 条记录 (耗时 0.018 秒)

    CONSTRUCTION MACHINERY
    1.
    发明公开
    CONSTRUCTION MACHINERY 审中-公开

    公开(公告)号：EP3521516A1

    公开(公告)日：2019-08-07

    申请号：EP17855646.0

    申请日：2017-09-06

    申请人： Hitachi Construction Machinery Co., Ltd.

    发明人： ISHIHARA, Shinji ,  IMURA, Shinya ,  NISHIKAWA, Shinji ,  AMANO, Hiroaki

    IPC分类号： E02F9/20 ,  E02F9/22

    摘要： A construction machine capable of achieving favorable operability in a combined operation is provided. A hybrid excavator includes: a boom cylinder 10 driven by hydraulic fluid from a hydraulic pump 16b; a swing hydraulic motor 5 driven by hydraulic fluid from the hydraulic pump 16b; a swing electric motor 6 connected mechanically with the swing hydraulic motor 5; an inverter 19 that controls operation of the swing electric motor 6; and a controller 21 that outputs to the inverter 19 a torque command value for controlling electric driving torque or electricity generating torque of the swing electric motor 6. The controller 21 includes a torque command value calculation section 24 that receives inputs of a swing operation amount signal of an operation lever device 15a and a boom raising operation amount signal of an operation lever device 15b and that outputs a torque command value of the electricity generating torque of the swing electric motor 6 to the inverter 19 when load pressure of the swing hydraulic motor 5 is determined to be higher than load pressure of the boom cylinder 10.

    CONSTRUCTION MACHINE
    4.
    发明公开
    CONSTRUCTION MACHINE 审中-公开

    公开(公告)号：EP3712335A1

    公开(公告)日：2020-09-23

    申请号：EP18877094.5

    申请日：2018-11-08

    申请人： Hitachi Construction Machinery Co., Ltd.

    发明人： ISHIHARA, Shinji ,  SAKAMOTO, Hiroshi ,  MORIKI, Hidekazu ,  NARIKAWA, Ryu

    IPC分类号： E02F3/43 ,  E02F9/20

    摘要： A construction machine that can make a depressing force of a bucket during compaction work to be uniform without requiring an operator to perform a complicated operation is provided.
    A controller 18 determines whether or not compaction work is in progress, calculates a front distance R that represents a distance between a rotational pivot of a boom 4 and a predetermined position B in a back surface of a bucket 6, determines a target velocity of the bucket such that a velocity with which the bucket approaches a leveling target surface decreases with increasing values of the front distance, and, during the compaction work, notifies the operator of details of an operation of operation devices 9a and 9b for achieving the target velocity of the bucket or controls hydraulic actuators 4a to 6a so as to achieve the target velocity of the bucket.

    CONTROL DEVICE FOR HYBRID CONSTRUCTION MACHINE
    6.
    发明公开
    CONTROL DEVICE FOR HYBRID CONSTRUCTION MACHINE 审中-公开
    混凝土施工机械的控制装置

    公开(公告)号：EP3269953A1

    公开(公告)日：2018-01-17

    申请号：EP15885367.1

    申请日：2015-03-13

    申请人： Hitachi Construction Machinery Co., Ltd.

    发明人： ISHIHARA, Shinji ,  HOSHINO, Masatoshi

    IPC分类号： F01N3/023

    CPC分类号： B60W20/16 ,  B60K6/48 ,  B60W10/06 ,  B60W10/08 ,  B60W10/26 ,  B60W10/30 ,  B60W30/1886 ,  B60W2300/17 ,  B60W2510/06 ,  B60W2540/00 ,  B60W2710/083 ,  B60W2710/086 ,  B60W2710/242 ,  B60W2710/305 ,  E02F9/2075 ,  F01N3/023 ,  F01N3/027 ,  F01N9/002 ,  Y02T10/54 ,  Y02T10/6221 ,  Y02T10/6286 ,  Y10S903/93

    摘要： A control apparatus for a hybrid construction machine which can continue filter regeneration without impairing the operability as far as possible irrespective of a condition of a machine body or a power storage device is provided.
    The control apparatus for a hybrid construction machine includes an engine, a motor generator driven by the engine and capable of generating electric power, a hydraulic pump driven by total torque of the engine and the motor generator, a power storage device, an inverter, a filter that collects a particulate material in exhaust gas of the engine, and a control section that outputs a command signal for controlling powering operation or regeneration operation of the motor generator. The control apparatus further includes a powering operation limitation section that inputs thereto an ordinary torque command for the motor generator calculated by a torque command value calculation section and a demand signal for regeneration of the filter decided by a filter regeneration decision section and calculates the command signal in response to the input signals. The powering operation limitation section calculates, when the demand signal for regeneration of the filter is available, a command signal for limiting the powering operation of the motor generator.

    摘要翻译： 本发明提供一种混合动力工程机械的控制装置，无论机体或蓄电装置的状况如何，都能够尽可能地不损害可操作性地继续过滤器再生。 混合动力建筑机械的控制装置包括发动机，由发动机驱动并能够发电的电动发电机，由发动机和电动发电机的总转矩驱动的液压泵，蓄电装置，逆变器， 过滤器，其收集发动机的废气中的颗粒材料;以及控制部分，其输出用于控制电动发电机的动力运行或再生操作的命令信号。 控制装置还包括动力运转限制部，该动力运转限制部输入由转矩指令值计算部计算出的电动发电机的常规转矩指令和由过滤器再生判定部决定的再生过滤器的要求信号，并计算指令信号 响应于输入信号。 供电操作限制部分在用于再生过滤器的需求信号可用时计算用于限制电动发电机的供电操作的命令信号。

    CONSTRUCTION MACHINE
    7.
    发明公开
    CONSTRUCTION MACHINE 有权
    施工机械

    公开(公告)号：EP2966283A1

    公开(公告)日：2016-01-13

    申请号：EP14761050.5

    申请日：2014-03-05

    申请人： Hitachi Construction Machinery Co., Ltd.

    发明人： SAKAMOTO, Hiroshi ,  HOSHINO Masatoshi ,  ISHIHARA, Shinji

    IPC分类号： F02D29/00 ,  E02F9/20 ,  F02D29/04

    CPC分类号： E02F9/2075 ,  B60W20/11 ,  B60W20/13 ,  Y10S903/903

    摘要： To provide a construction machine that appropriately sets the magnitude of an engine output for each work mode. A construction machine according to the present invention includes: an engine (22); a generator-motor (23) configured to generate electric power by the engine; a hydraulic pump (41) configured to be driven by the engine and the generator-motor; a hydraulic actuator (32, 34, 36) that drives and operates a working device (30) with the power of the hydraulic pump; an electric storage device (24) for supplying electric power to drive the generator-motor and charging the electric power generated by the generator-motor; a work-mode selecting device (45, 46) that selects a work mode corresponding to operation of an operator; and an engine-output setting unit (403, 405, 407) that sets the magnitude of the output of the engine corresponding to the work mode selected by the work-mode selecting device.

    摘要翻译： 提供适当设定每种工作模式的发动机输出量的工程机械。 根据本发明的建筑机械包括：发动机（22）;发动机 发电电动机（23），其构成为通过所述发动机进行发电; 液压泵（41），其构造成由所述发动机和所述发电机 - 马达驱动; 液压致动器（32,34,36），其利用所述液压泵的动力来驱动和操作工作装置（30）; 蓄电装置（24），其用于供给电力以驱动发电电动机并对由发电电动机产生的电力进行充电; 工作模式选择装置（45,46），其选择与操作员的操作对应的工作模式; 以及发动机输出设定单元（403,405,407），其设定与由所述工作模式选择装置选择的所述工作模式对应的所述发动机的输出的大小。

    WORKING MACHINE
    9.
    发明公开
    WORKING MACHINE 审中-公开
    工作机器

    公开(公告)号：EP3305617A1

    公开(公告)日：2018-04-11

    申请号：EP16803375.1

    申请日：2016-06-01

    申请人： Hitachi Construction Machinery Co., Ltd.

    发明人： HOSHINO, Masatoshi ,  ISHIHARA, Shinji ,  ITOGA, Kentarou

    IPC分类号： B60W20/13 ,  B60K6/485 ,  B60L11/12 ,  B60W10/06 ,  B60W10/08 ,  E02F9/20 ,  F02D29/00 ,  F02D29/06 ,  F02D41/14 ,  F02D45/00

    摘要： The present invention includes a battery controller that calculates an electrical storage remaining amount of a battery, a charging/discharging request calculation part that calculates a charging/discharging request amount for keeping electric power outputted by the battery within a predetermined range based on the electrical storage remaining amount calculated, a target rotational speed calculation part that calculates a target rotational speed command value of a motor generator, and an inverter that controls the motor generator according to the target rotational speed command value calculated, and it is configured that at least one of the battery controller and the inverter calculates the actual charging/discharging amount of the battery, and that the target rotational speed calculation part calculates a target rotational speed correction value from difference between the charging/discharging request amount and the actual charging/discharging amount and corrects the target rotational speed command value.

    摘要翻译： 本发明包括：电池控制器，其计算电池的电存储剩余量;充电/放电请求计算部分，其基于电存储来计算用于将由电池输出的电力保持在预定范围内的充电/放电请求量 计算剩余量;目标转速计算部分，其计算电动发电机的目标转速命令值;以及逆变器，其根据所计算的目标转速命令值来控制电动发电机，并且其被配置为至少 电池控制器和逆变器计算电池的实际充电/放电量，并且目标旋转速度计算部分根据充电/放电请求量与实际充电/放电量之间的差来计算目标旋转速度校正值，并校正 目标旋转 速度指令值。