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    • 2. 发明授权
    • Wheel slip brake assurance module
    • 车轮制动保证模块
    • US07374252B2
    • 2008-05-20
    • US11376902
    • 2006-03-16
    • David E. SchweikertRobert N. ScharpfJames A. Wood
    • David E. SchweikertRobert N. ScharpfJames A. Wood
    • B60T13/74B60T8/34B60T15/02
    • B60T8/3235B60T17/228
    • A wheel slip assurance module comprises a device for disabling the wheel slip valve, a timing reservoir in communication with the disabling device, and a check valve and choke circuit providing parallel connections between the output of the wheel slip valve and the timing reservoir having a first connection path comprising a check valve and charging choke and a second connection path comprising a dissipating choke such that flow from the output of the wheel slip valve passes through the check valve and charging choke to charge the reservoir when the brake cylinders are pressurized and opposite flow passes through the dissipating choke allowing the reservoir to discharge when the brake cylinders are exhausted.
    • 车轮滑动保证模块包括用于禁用车轮滑动阀的装置,与禁用装置连通的定时储存器,以及提供在车轮滑动阀的输出和定时储存器之间的并联连接的止回阀和扼流器电路,其具有第一 连接路径包括止回阀和充电扼流圈以及包括消散扼流圈的第二连接路径,使得来自车轮滑阀的输出的流动通过止回阀和充气扼流圈,以在制动缸被加压并且相对流动时对蓄能器充气 通过耗散的扼流圈,当制动气缸耗尽时允许储液器排出。
    • 5. 发明授权
    • Universal wheel slip force control logic
    • 通用车轮滑动力控制逻辑
    • US5975656A
    • 1999-11-02
    • US912105
    • 1997-08-18
    • David E. SchweikertJames A. Wood
    • David E. SchweikertJames A. Wood
    • B60T8/175B60T7/12
    • B60T8/175
    • A method in part enables a wheel slip control system that controls slip on a per axle basis to control slip on a per truck basis. The wheel slip control system issues on a per axle basis an axle reduction signal indicative of a percentage by which to reduce the braking force that would normally be applied to one wheel/axle combination on a truck of a rail vehicle. The method includes the step of converting the axle reduction signals issued on a per axle basis to a truck reduction priority signal indicative of a percentage by which to reduce the braking force on a per truck basis. For rail vehicles featuring dynamic braking equipment another step involves commanding the dynamic braking equipment to reduce the dynamic braking force being applied to the wheel/axle combinations of the truck in response to the percentage carried by the truck reduction priority signal. Still another step involves commanding the friction braking equipment to apply an appropriate amount of friction braking force to the wheel/axle combinations of the truck so as to resolve the slip experienced thereby. The appropriate amount of friction braking force represents the sum of the total braking force sought to be applied to the wheel/axle combinations of the truck less first a product of the total braking force and the percentage carried by the truck reduction priority signal and less second the dynamic braking force being applied to the wheel/axle combinations of the truck.
    • 一种方法部分地实现了以车辆为单位控制滑移的车轮打滑控制系统,以基于卡车来控制滑移。 轮滑控制系统在每轴的基础上发出轴减速信号,其表示通过该百分比减小通常施加到轨道车辆的卡车上的一个车轮/车轮组合的制动力的百分比。 该方法包括将以每轴为基础发出的轴减速信号转换为指示以每卡车为基础减小制动力的百分比的卡车减小优先信号的步骤。 对于具有动态制动设备的轨道车辆,另一步骤是响应于卡车减速优先信号承载的百分比,指示动态制动设备减少施加到车辆的车轮组合的动态制动力。 另一个步骤涉及指令摩擦制动设备对卡车的车轮/车轮组合施加适当量的摩擦制动力,以便解决由此而产生的滑动。 适当量的摩擦制动力表示试图应用于车辆的车轮/车轮组合的总制动力的总和,较少首先是总制动力的乘积和由卡车降低优先级信号承载的百分比的乘积 动力制动力被施加到车轮/车轮组合的卡车。
    • 6. 发明授权
    • Wheel slip control parameter variation process
    • 车轮滑差控制参数变化过程
    • US5961564A
    • 1999-10-05
    • US852799
    • 1997-05-07
    • James A. WoodDavid E. Schweikert
    • James A. WoodDavid E. Schweikert
    • B60T8/58B60T8/17B60T8/1761B61H11/00B60T8/00B60T8/32
    • B60T8/1705
    • A wheel slip control system employs a method of varying the detection and correction parameters it uses based on whether the wheel/axle combinations on a truck of a rail vehicle operate in the coupled or decoupled modes of operation. The control system executes programming code featuring detection and correction logic. The steps of the method include deriving both detection parameters optimized for each mode called coupled and decoupled detection parameters and correction parameters optimized for each mode called coupled and decoupled correction parameters. Another step involves monitoring the amount of dynamic braking applied to the wheel/axle combinations. Yet another step involves determining whether the amount of dynamic braking lies for a preset time period within a preset zone of operation for the dynamic braking of the wheel/axle combinations on the truck. The method provides the coupled detection parameters to the detection logic if the amount of dynamic braking lies within the preset zone for the preset time. Alternately, it provides the decoupled detection parameters to the detection logic if the amount of dynamic braking fails to lie within the preset zone for the preset time. The method provides the coupled correction parameters to the correction logic if the amount of dynamic braking lies within the preset zone for the preset time. Alternately, it provides the decoupled correction parameters to the correction logic only if the amount of dynamic braking fails to lie within the preset zone for the preset time when the wheel slip control system is inactive.
    • 轮滑控制系统采用根据轨道车辆的卡车上的车轮/车轮组合是否以耦合或解耦操作模式运行的方式来改变其使用的检测和校正参数。 控制系统执行具有检测和校正逻辑的编程代码。 该方法的步骤包括导出针对每个模式优化的称为耦合和去耦检测参数的检测参数以及针对称为耦合和去耦校正参数的每种模式优化的校正参数。 另一个步骤是监测施加到车轮/车轮组合的动态制动量。 另一个步骤涉及确定动态制动量是否在用于车辆/车轮组合在卡车上的动态制动的预设操作区域内的预设时间段内。 如果在预设时间内动态制动量位于预设区域内,该方法将检测参数耦合到检测逻辑。 或者,如果在预设时间内动态制动量不能落在预设区域内,则为检测逻辑提供去耦检测参数。 如果在预设时间内动态制动量位于预设区域内,则该方法向校正逻辑提供耦合校正参数。 或者,只有当车轮滑移控制系统不活动的预设时间内动态制动量不能落在预设区域内时,才向校正逻辑提供去耦校正参数。
    • 9. 发明授权
    • Relative spin speed traction control
    • 相对旋转速度牵引力控制
    • US5740043A
    • 1998-04-14
    • US610727
    • 1996-03-04
    • James A. WoodDavid E. SchweikertDavid A. Greer
    • James A. WoodDavid E. SchweikertDavid A. Greer
    • B60T8/175B60T8/17B61C15/00B61C15/08B61C15/14B60T8/32
    • B60T8/1703
    • An apparatus for providing relative spin speed traction control on a railway vehicle. Such apparatus includes a wheel spin detection device connected to receive a plurality of input signals; one of such input signals being an externally generated axle rate signal which represents an acceleration/deceleration rate of a particular wheel/axle set being monitored with respect to wheel slippage. This device generates a spin speed selection output signal and a respective axle's wheel spin detection signal. A wheel spin correction device connected to receive as input signals; a power/brake signal which represents when such vehicle is either in a braking mode or not, a spin speed selection output signal and the respective axle's wheel spin detection signal. This device determines the appropriate output force command signal selected from remove, hold and apply and also generates an output signal indicating a spin correction being in progress or not in progress for a respective axle. A wheel spin axle force command signal generating unit connected to receive a power/brake signal, an output force command signal and a signal indicative of spin correction, for generating a re-application jerk limiting output signal and communicating this signal to respective truck 1 and truck 2 propulsion control units. A speed normalization unit connected to receive raw axle speed signals, a power/brake signal, axle rate signals and an output signal representative of car level spin for generating an output signal representative of normalized axle speed.
    • 一种用于在铁路车辆上提供相对旋转速度牵引控制的装置。 这种装置包括连接以接收多个输入信号的轮旋转检测装置; 这种输入信号中的一个是外部产生的轴速率信号,其表示相对于车轮打滑监测的特定车轮/车轴组的加速/减速率。 该装置产生旋转速度选择输出信号和相应的车轮旋转检测信号。 连接作为输入信号接收的车轮自旋校正装置; 表示这种车辆处于制动模式时的动力/制动信号,旋转速度选择输出信号和各自的车轮自旋检测信号。 该装置确定从去除,保持和应用中选择的适当的输出力命令信号,并且还产生指示相应车轴正在进行或未进行自旋校正的输出信号。 连接以接收电力/制动信号的转轮旋转轴力指令信号发生单元,输出力指令信号和指示自旋校正的信号,用于产生重新施加的加加速度限制输出信号并将该信号传送到相应的卡车1和 卡车2个推进控制单元。 连接的速度归一化单元,用于接收原轴速度信号,电源/制动信号,轴速率信号和表示汽车电平自旋的输出信号,以产生表示归一化车轴速度的输出信号。