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公开(公告)号：US20110227512A1
公开(公告)日：2011-09-22
申请号：US13036391
申请日：2011-02-28
IPC分类号： H02P3/04
CPC分类号： E02F9/123 , B66C23/86 , B66C23/94 , E02F9/128 , E02F9/2075 , E02F9/2083
摘要： There is provided a slewing control device that enables to detect breakdown of a driving system of a mechanical brake, and generate a torque for holding a slewing body in a stopped state to thereby prevent movement of the slewing body when an anomaly has occurred. In a working machine for driving a slewing body by an electric motor 1, judgment is made as to whether a mechanical brake 4 is in an inconsistent state, based on a command to be outputted to a brake circuit B, and a pressure detected by a brake pressure sensor 17. The inconsistent state is a state that the mechanical brake 4 is in a brake released state when an activation command for switching the mechanical brake 4 to a brake activated state is outputted. If it is judged that the mechanical brake 4 is in the inconsistent state, a command for obtaining a braking torque for holding the slewing body in a stopped state is outputted to the electric motor 1.
摘要翻译： 提供了一种回转控制装置，其能够检测机械制动器的驱动系统的故障，并且产生用于将回转体保持在停止状态的扭矩，从而防止在发生异常时的回转体的运动。 在用于通过电动机1驱动回转体的作业机械中，判断机械制动器4是否处于不一致状态，基于要输出到制动回路B的指令，以及由 制动压力传感器17.当将机械制动器4切换到制动器启动状态的启动命令被输出时，不一致状态是机械制动器4处于制动释放状态的状态。 如果判断为机械制动器4处于不一致状态，则将用于获得用于将转动体保持在停止状态的制动转矩的指令输出到电动机1。
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公开(公告)号：US20080201045A1
公开(公告)日：2008-08-21
申请号：US12034331
申请日：2008-02-20
IPC分类号： G06F17/00
CPC分类号： E02F9/123 , E02F9/128 , E02F9/2075 , E02F9/2095
摘要： An excavator has a controller capable of setting target torque of a rotation motor in accordance with a speed deviation between target speed set in accordance with an operation amount of an operating lever and actual rotation speed and is provided with an inverter for detecting necessary torque for rotating an upper rotating body, the necessary torque being changed in accordance with a working state of the upper rotating body. The controller calculates a correction amount which is increased as increasing the torque and subtracts the correction amount from the target speed so as to set new target speed. A controller sets first target torque for driving the motor and second target torque for maintaining the upper rotating body on the spot on the basis of the actual speed, and operates the motor in accordance with the torque which has a larger absolute value in the same direction as the first target torque among both the torque.
摘要翻译： 挖掘机具有能够根据与操作杆的操作量设定的目标速度和实际转速之间的速度偏差来设定旋转马达的目标转矩的控制器，并且设置有用于检测旋转的必要转矩的逆变器 上旋转体，必要的扭矩根据上旋转体的工作状态而变化。 控制器计算随着转矩的增加而增大的校正量，并从目标速度减去校正量，从而设定新的目标速度。 控制器基于实际速度设定用于驱动电动机的第一目标转矩和用于将上部旋转体保持在现场的第二目标转矩，并且根据相同方向具有较大绝对值的转矩来操作电动机 作为两个转矩之间的第一个目标转矩。
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公开(公告)号：US20080093865A1
公开(公告)日：2008-04-24
申请号：US11875340
申请日：2007-10-19
CPC分类号： B60W20/10 , B60K6/48 , B60K6/543 , B60L1/003 , B60L3/0023 , B60L11/14 , B60L15/20 , B60L2200/40 , B60L2240/421 , B60L2240/423 , B60L2240/441 , B60L2250/24 , B60L2250/26 , B60W10/06 , B60W10/08 , B60W20/00 , B60W2540/10 , B60W2710/0644 , B60W2710/081 , E02F9/2075 , E02F9/2091 , Y02T10/6221 , Y02T10/6286 , Y02T10/645 , Y02T10/70 , Y02T10/7077 , Y02T10/72 , Y02T10/7275
摘要： The present invention is to drive a hydraulic pump and a generator motor by an engine, to electrically charge a battery by a generator action of the generator motor, and to drive the generator motor by electric power of the battery so as to assist the engine. A governor position is changed by operations of a potentiometer for accelerator and a mode selection switch so as to control rotation speed of the engine. On the premise of the above configuration, generator output is limited by a controller at the time of accelerating the engine until the rotation speed of the engine reaches set speed determined on the basis of the operations of the potentiometer for accelerator and the mode selection switch, and hence engine load is reduced so as to assist acceleration.
摘要翻译： 本发明是通过发动机驱动液压泵和发电机电动机，通过发电机电动机的发电机动作对电池进行充电，并且通过电池的电力驱动发电机电动机，以辅助发动机。 通过用于加速器的电位计和模式选择开关的操作来改变调速器位置，以便控制发动机的转速。 在上述结构的前提下，发动机输出在加速发动机时由控制器限制，直到发动机的转速达到基于用于加速器的电位计和模式选择开关的操作确定的设定速度， 从而减少发动机负荷，从而有助于加速。
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公开(公告)号：US20100102763A1
公开(公告)日：2010-04-29
申请号：US12581299
申请日：2009-10-19
CPC分类号： B60W20/50 , B60K6/46 , B60L1/003 , B60L1/20 , B60L7/02 , B60L7/10 , B60L11/123 , B60L2200/40 , B60W10/04 , B60W10/06 , B60W10/08 , B60W10/26 , B60W20/00 , B60W2050/0297 , B60W2300/17 , B60W2510/244 , B60Y2200/412 , E02F9/123 , E02F9/2075 , E02F9/2091 , Y02T10/6208 , Y02T10/6217 , Y02T10/6282 , Y02T10/6286 , Y02T10/7005 , Y02T10/7077
摘要： In a hybrid excavator, a generator motor and a hydraulic pump are driven by using an engine as a power source. A battery is charged with power generated by the generator motor. A rotation motor is driven by the generator motor and the battery. The voltage of a DC bus is detected by a voltage sensor, and whether the battery is unusable is determined by a breakdown detector. When the battery becomes unusable, emergency evacuation control is performed so that the power consumption of the rotation motor will be suppressed to be less than or equal to the power generation of the generator motor while maintaining the DC bus voltage greater than or equal to the normal operation voltage of the system.
摘要翻译： 在混合动力挖掘机中，通过使用发动机作为动力源来驱动发电电动机和液压泵。 电池由发电机电机产生的电力充电。 旋转电机由发电机电机和电池驱动。 DC母线的电压由电压传感器检测，电池是否不可用由击穿检测器决定。 当电池不能使用时，进行紧急撤离控制，使得将旋转电动机的功率消耗抑制在小于或等于发电机电动机的发电量，同时保持直流母线电压大于或等于正常 系统的工作电压。
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公开(公告)号：US20070214782A1
公开(公告)日：2007-09-20
申请号：US11677236
申请日：2007-02-21
IPC分类号： F16D31/02
CPC分类号： B60W20/10 , B60K6/46 , B60L1/003 , B60L11/123 , B60L2240/421 , B60L2240/423 , B60L2240/441 , B60L2240/486 , B60W10/08 , B60W10/30 , B60W20/00 , B60W2300/17 , B60W2510/0638 , B60W2510/081 , B60W2510/083 , B60W2510/244 , B60W2540/16 , B60W2710/081 , B60Y2200/25 , Y02T10/6217 , Y02T10/642 , Y02T10/7005 , Y02T10/7077
摘要： In a hybrid excavator, a hydraulic pump and a generator motor are connected in parallel to an output shaft of an engine and a rotation motor is driven by a battery. The generator motor assists the engine by performing a motor function. Power consumption of each of the hydraulic pump and the rotation motor is detected. The output of the hydraulic pump and the rotation motor is controlled such that the sum of the detected power consumption does not exceed maximum supply power set as the sum of power that can be supplied to the hydraulic pump and the rotation motor.
摘要翻译： 在混合动力挖掘机中，液压泵和发电电动机与发动机的输出轴并联连接，旋转电动机由电池驱动。 发电机通过执行电机功能来协助发动机。 检测出液压泵和旋转马达的功耗。 控制液压泵和旋转马达的输出，使得检测到的功率消耗的总和不超过作为可以提供给液压泵和旋转马达的功率之和而设定的最大供给功率。
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公开(公告)号：US20080082240A1
公开(公告)日：2008-04-03
申请号：US11861811
申请日：2007-09-26
IPC分类号： G06F19/00
CPC分类号： E02F9/123 , E02F9/2075
摘要： In a rotation control device for rotating a rotation motor at speed in accordance with a boom raising operation amount, at the time of a combined operation for simultaneously performing a rotation action and a boom raising action, a limitation value of rotation torque in accordance with the boom raising operation amount is determined by rotation torque limitation value setting means of a controller, the limitation value serving as a rotation torque limitation value is sent to rotation speed control means, and a command value of the rotation torque is torque-limited by rotation torque limiting means.
摘要翻译： 在旋转控制装置中，根据动臂提升动作量使转动马达转速，在同时进行旋转动作和起重臂升降动作的组合动作时，根据旋转动作的旋转力矩的限制值 起重臂上升操作量由控制器的转矩限制值设定装置决定，作为旋转转矩限制值的限制值被发送到转速控制装置，旋转转矩的指令值由转矩限制 限制手段。
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公开(公告)号：US20070096667A1
公开(公告)日：2007-05-03
申请号：US11537190
申请日：2006-09-29
IPC分类号： H02P1/54
摘要： In a hybrid construction machine, its display device displays, toward an operator, an artificial engine sound serving as load information according to a magnitude of a workload, instead of an engine sound. Furthermore, the display device issues an alarm sound to surrounding workers when performing an operation by only stored electrical power of an electrical energy storage device without using an engine. In this hybrid construction machine, in addition to the issuing of alarm from the display device during the operation without using the engine, the display device issues an advance notice sound for engine restart when at least one value out of the workload and a charge amount of the electrical energy storage device has become an advance notice set value close to a set value of engine restart.
摘要翻译： 在混合动力施工机械中，其显示装置代替发动机声音向操作员显示作为负载信息的人造发动机声音，而不是发动机声音。 此外，显示装置在不使用发动机的情况下通过仅存储电能存储装置的电力进行操作而向周围的工人发出报警声。 在该混合动力施工机械中，除了在不使用发动机的情况下从显示装置发出报警的情况下，显示装置在工作量的至少一个值和工作负荷的至少一个值的情况下，发出用于发动机重起的提前通知声音 电能存储装置已经成为接近发动机重启的设定值的预先通知设定值。
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公开(公告)号：US20070090650A1
公开(公告)日：2007-04-26
申请号：US11531971
申请日：2006-09-14
IPC分类号： H02P9/04
CPC分类号： E02F9/2075 , E02F9/0866
摘要： An inverter/converter as a kind of hybrid unit is composed of a body and a casing covering the body and is disposed in an engine room. An air intake port and an air discharge port each provided with a fan are formed in the casing to configure an internal air cooling device for introducing air present outside the engine room into the casing, allowing the air to flow through the interior of the casing and then discharging it from the air discharge port. A power divider for distributing engine power to a hydraulic pump and a generator-motor is disposed on one of right and left sides of an engine in a rear portion of an upper rotating body. Further, an electric power storage device and the inverter/converter are disposed right and left in parallel behind a cabin and in front of the engine, and a partition wall which defines the engine room is configured by casings of the electric power storage device, the inverter/converter and the power divider.
摘要翻译： 作为一种混合动力单元的逆变器/转换器由主体和覆盖主体的壳体构成，并且设置在发动机室中。 在壳体中形成有设置有风扇的进气口和排气口，以构成将存在于发动机室外的空气引入壳体的内部空气冷却装置，使空气流过壳体内部， 然后将其从排气口排出。 用于将发动机功率分配给液压泵和发电机的功率分配器设置在上部旋转体的后部中的发动机的左右两侧之一。 此外，电力存储装置和逆变器/转换器平行于机舱后方和发动机前方平行配置，并且限定发动机室的分隔壁由蓄电装置的壳体构成， 逆变器/转换器和功率分配器。
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