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    • 11. 发明申请
    • Method Of Effecting Simultaneous Displacement Changes In Hydrostatic Drive Machine
    • 在静液压驱动机中同时进行位移变化的方法
    • US20130131937A1
    • 2013-05-23
    • US13303324
    • 2011-11-23
    • Randall Todd AndersonBradley John Will
    • Randall Todd AndersonBradley John Will
    • F16H61/42F16D31/00F16H61/44
    • F16H61/452F16H61/462
    • A method is provided for controlling a gear ratio change in a hydrostatic drive machine. The hydrostatic drive machine includes a variable displacement pump and at least one variable displacement motor fluidly connected with the variable displacement pump. The method includes a step of determining a gear ratio rate of change corresponding to a change from a current gear ratio to a new gear ratio. Start and stop overlap gear ratios corresponding to the gear ratio rate are determined and define an overlap range. The current gear ratio is changed to the new gear ratio using electronic signals at least in part by simultaneously changing displacements of the variable displacement pump and the at least one variable displacement motor at gear ratios within the overlap range, and sequentially changing displacements of the variable displacement pump and the at least one variable displacement motor at gear ratios outside the overlap range.
    • 提供了一种用于控制静液压驱动机器中的变速比变化的方法。 静液压驱动机器包括可变排量泵和至少一个与可变排量泵流体连接的可变排量马达。 该方法包括确定与从当前齿轮比变化到新齿轮比的变化率相对应的变速比变化率的步骤。 确定与齿轮比率对应的起始和停止重叠齿轮比,并定义重叠范围。 至少部分地通过在重叠范围内同时改变变量泵和至少一个可变容量电动机的变速比的位移,使用电子信号将目前的传动比改变为新的传动比,并且依次改变变量的位移 位移泵和位于重叠范围之外的齿轮比的至少一个可变排量马达。
    • 12. 发明申请
    • Power control system and method
    • 电力控制系统及方法
    • US20070141874A1
    • 2007-06-21
    • US11582236
    • 2006-10-17
    • Robert SteigerwaldTodd Anderson
    • Robert SteigerwaldTodd Anderson
    • H01R25/00
    • H02J7/32H02N2/181
    • A power system includes an energy harvesting device, a battery coupled to the energy harvesting device, and a circuit coupled to the energy harvesting device and the battery. The circuit is adapted to deliver power to a load by providing power generated by the energy harvesting device to the load without delivering excess power to the battery and to supplement the power generated by the energy harvesting device with power from the battery if the power generated by the energy harvesting device is insufficient to fully power the load. A method of operating the power system is also provided.
    • 电力系统包括能量收集装置,耦合到能量收集装置的电池以及耦合到能量收集装置和电池的电路。 该电路适于通过向负载提供由能量收集装置产生的电力而向电池提供电力,而不向电池输送多余的电力,并且如果由电池产生的电力而由能量收集装置产生的电力补充来自电池的电力, 能量收集装置不足以完全为负载供电。 还提供了一种操作电力系统的方法。
    • 19. 发明申请
    • SYSTEM AND METHOD FOR DETECTING RAIL BREAK OR VEHICLE
    • 用于检测轨道或车辆的系统和方法
    • US20070145982A1
    • 2007-06-28
    • US11318970
    • 2005-12-27
    • Todd AndersonKenneth Welles
    • Todd AndersonKenneth Welles
    • G01R31/08
    • B61L23/044B61L1/181
    • A rail break or vehicle detection system includes a plurality of voltage sources, each coupled to one of the plurality of zones. A plurality of resistors are provided, each coupled in series with one of the plurality of voltage sources. A plurality of current sensors are provided, each coupled to one of the plurality of resistors and adapted to measure a first set of values and second set of values indicative of current flowing through the resistor. At least one control unit is adapted to receive input from the plurality of current sensors and to compare a difference between the second set of values and the first set of values to a predetermined threshold limit to detect presence of a rail vehicle on the block. The control unit is further adapted to switch a polarity of each voltage source.
    • 轨道断路或车辆检测系统包括多个电压源,每个电压源耦合到多个区域之一。 提供多个电阻器,每个电阻器与多个电压源中的一个串联耦合。 提供多个电流传感器,每个电流传感器分别耦合到多个电阻器中的一个并且适于测量指示电流流过电阻器的电流的第一组值和第二组值。 至少一个控制单元适于接收来自多个电流传感器的输入,并且将第二组值与第一组值之间的差值比较至预定阈值极限,以检测轨道车辆在该块上的存在。 控制单元还适于切换每个电压源的极性。