FORKLIFT
    3.
    发明申请
    FORKLIFT 审中-公开

    公开(公告)号:US20110297486A1

    公开(公告)日:2011-12-08

    申请号:US13201468

    申请日:2010-02-17

    IPC分类号: B66F9/24 H02P5/74

    CPC分类号: B66F9/20 B66F9/24

    摘要: [Object]To enable stable cargo handling operation and high-efficiency recovery of regenerative electric power by means of simple configuration.[Solution]In a forklift which includes linear actuators that convert rotational motion into linear motion, the linear actuators being provided in a plurality of fork parts of a cargo handling drive device, the forklift includes induction motors that drive each of the plurality of actuators provided in the plurality of fork parts, an inverter that drives the induction motors in the same manner, and a controller that controls the inverter, and the controller computes a slip frequency by using the lowest detection value among detection values from detectors that detect each of rotation speeds of the plurality of induction motors.

    摘要翻译: [对象]通过简单的配置实现稳定的货物处理操作和再生电力的高效回收。 [解决方案]在包括将旋转运动转换成直线运动的线性致动器的叉车中,线性致动器设置在货物处理驱动装置的多个叉部中,叉车包括驱动多个致动器中的每个致动器的感应马达 在多个叉部中,以相同的方式驱动感应电动机的逆变器和控制逆变器的控制器,并且控制器通过使用检测每个旋转的检测器的检测值中的最低检测值来计算转差频率 多个感应电动机的速度。

    Automotive radar
    5.
    发明授权
    Automotive radar 失效
    汽车雷达

    公开(公告)号:US06933881B2

    公开(公告)日:2005-08-23

    申请号:US10618736

    申请日:2003-07-15

    摘要: An automotive radar having a high level of azimuth accuracy and a broad detectable range by virtue of preventing leaks of unnecessary waves to receiving antennas is to be provided. A transmitting array antenna 1 and receiving array antennas 2a, 2b are arranged on an antenna plate (grounding conductor plate) 3 which serves to ground the antennas, and radio wave absorbers 4 are arranged on two sides of the edges 15 of the antenna plate 3. The radio wave absorbers 4 may be configured of, for instance, a sponge material containing radio wave absorbing grains.

    摘要翻译: 提供一种具有高水平的方位精度和宽广的可检测范围的汽车雷达,借助于防止对接收天线的不必要的波浪的泄漏。 发射阵列天线1和接收阵列天线2a,2b布置在用于对天线的天线板(接地导体板)3上,并且无线电波吸收器4被布置在天线的边缘15的两侧 板3。 无线电波吸收器4可以由例如包含无线电波吸收颗粒的海绵材料构成。

    Construction machine having revolving structure
    6.
    发明授权
    Construction machine having revolving structure 有权
    具有旋转结构的施工机械

    公开(公告)号:US09581176B2

    公开(公告)日:2017-02-28

    申请号:US13979436

    申请日:2012-01-19

    摘要: Both a hydraulic motor and an electric motor are provided for driving an upper swing structure. When the amount of electricity stored in a capacitor is appropriate, the upper swing structure is driven by both the hydraulic motor and the electric motor. When the amount of electricity stored in the capacitor exceeds an appropriate value, the mode is changed over to a mode in which the upper swing structure is driven only by the hydraulic motor, and an assist electric generation motor is assist-driven or engine-driven to thereby rapidly return the amount of electricity stored in the capacitor to an appropriate range. The capacity of the capacitor can be reduced, and the amount of electricity stored in the capacitor can be managed without losing the operability of swing motion.

    摘要翻译: 提供液压马达和电动马达用于驱动上部摆动结构。 当存储在电容器中的电量适当时,上部摆动结构由液压马达和电动马达驱动。 当存储在电容器中的电量超过适当的值时,该模式转换到仅由液压马达驱动上部摆动结构的模式,并且辅助发电马达是辅助驱动的或发动机驱动的 从而将存储在电容器中的电量迅速返回到适当的范围。 可以降低电容器的容量,并且可以在不损失摆动运动的可操作性的情况下管理存储在电容器中的电量。

    Construction machine and industrial vehicle having power supply system
    7.
    发明授权
    Construction machine and industrial vehicle having power supply system 有权
    具有供电系统的建筑机械和工业车辆

    公开(公告)号:US08831805B2

    公开(公告)日:2014-09-09

    申请号:US13202143

    申请日:2010-03-31

    IPC分类号: B60L1/00

    摘要: A construction machine or industrial vehicle having a power supply system which includes a chargeable and dischargeable capacitor and a feeder circuit connecting a battery and the capacitor to a load capable of power running and regeneration. The capacitor is connected through a DC/DC converter which includes a controller that controls energy charged or discharged by the capacitor through the DC/DC converter to the load. The controller includes a power running/regeneration operation estimater which estimates an operation pattern including a point of change between power running and regeneration modes of the motor, or DC current supplied to an inverter, or control lever information and previously stored operation pattern information, and a capacitor target voltage calculator which controls an output command value of the DC/DC converter according to the estimated operation pattern so that a capacitor target voltage sequentially decreases in power running and sequentially increases in regeneration.

    摘要翻译: 一种具有电源系统的施工机械或工业车辆,该供电系统包括可充电和可放电的电容器,以及将电池和电容器连接到能够进行电力再生的负载的馈电电路。 电容器通过DC / DC转换器连接,该DC / DC转换器包括一个控制器,该控制器控制电容器通过DC / DC转换器对负载进行充电或放电的能量。 该控制器包括功率运行/再生运行估计器,其估计包括电动机的动力运行和再生模式之间的变化点,或者提供给逆变器的直流电流,控制杆信息和预先存储的运行模式信息的运行模式,以及 电容器目标电压计算器,其根据估计的操作模式控制DC / DC转换器的输出指令值,使得电力目标电压在功率运行中顺序地减小,并且再生顺序地增加。

    ACTUATOR CONTROL DEVICE AND WORKING MACHINE EQUIPPED WITH SAME
    9.
    发明申请
    ACTUATOR CONTROL DEVICE AND WORKING MACHINE EQUIPPED WITH SAME 审中-公开
    执行器控制装置和配备其的工作机器

    公开(公告)号:US20130013159A1

    公开(公告)日:2013-01-10

    申请号:US13579995

    申请日:2011-01-18

    IPC分类号: G05B11/32 G06F17/10

    摘要: Provided is an actuator control system capable of suppressing vibrations during regeneration. The actuator control system is provided with a target speed computing means (121) for computing a target rpm for the electric motor, a load sensing means (2) for sensing a load applied to an actuator, a torque instruction computing means (123) for computing a torque instruction for the electric motor based on the load, a current instruction computing means (131) for computing a vector instruction on a current, which is to be allowed to flow to the electric motor, from the torque instruction, a current sensing means (5a), a current conversion means (132) for converting a current to a current vector, a voltage instruction computing means (133) for computing a voltage vector instruction corresponding to a deviation between the current vector instruction and the current vector, and a voltage conversion means (134) for converting the voltage vector instruction to a voltage instruction, and further, outputting the voltage instruction to a control unit for the electric motor. The current conversion means and voltage conversion means perform the respective conversions based on the target rpm computed by the target speed computing means.

    摘要翻译: 提供能够抑制再生时的振动的致动器控制系统。 致动器控制系统设有用于计算用于电动机的目标转速的目标速度计算装置(121),用于感测施加到致动器的负载的负载感测装置(2),用于 基于负载计算用于电动机的转矩指令;当前指令计算装置(131),用于从转矩指令计算要被允许流向电动机的电流的矢量指令,电流感测 装置(5a),用于将电流转换为电流矢量的电流转换装置(132),用于计算与当前矢量指令和当前矢量之间的偏差相对应的电压矢量指令的电压指令计算装置(133),以及 用于将电压矢量指令转换为电压指令的电压转换装置(134),并且还将电压指令输出到用于电动机的控制单元。 电流转换装置和电压转换装置基于由目标速度计算装置计算出的目标转速执行各自的转换。