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    • 31. 发明授权
    • Electronic emergency brake load weigh device
    • 电子紧急制动负载称重装置
    • US6095621A
    • 2000-08-01
    • US425428
    • 1999-10-22
    • James A. WoodRichard J. Mazur
    • James A. WoodRichard J. Mazur
    • B60T8/18B60T8/22B60T13/66B61H13/30
    • B60T8/1893B60T13/665B60T8/1881
    • An electronic load weigh device is used with a railcar truck control unit. A relay valve provides to a brake cylinder a pressure proportional to the pressure impinging upon its control port. A first feedback signal is indicative of the pressure at the control port. A second feedback signal is indicative of the load borne by the truck. A pressure switch opens when pressure within a trainline changes to a level indicative of an emergency. By controlling the opening and closing of application and release magnet valves, a controller controls the pressure impinging on the control port and thereby service braking of the wheels of the truck. The load weigh device includes (i) circuitry for electronically compensating for the load during braking and (ii) a mechanism for granting the circuitry exclusive control over the magnet valves. Should such emergency occur, the mechanism responds to such emergency by disconnecting the controller from the magnet valves. This gives the circuitry exclusive control over the magnet valves. The circuitry compensates for the load borne by the truck during emergency braking by selectively opening and closing the magnet valves, according to predetermined criteria using the feedback signals, thereby controlling the magnitude of the pressure impinging upon the control port. Absent such emergency, the mechanism responds to such absence by connecting the controller to the magnet valves whereby such service braking on the truck is normally controlled, yet the circuitry is still enabled to compensate for the load during such service braking.
    • 电子负载称重装置与轨道车辆卡车控制单元一起使用。 继动阀向制动缸提供与撞击其控制端口的压力成比例的压力。 第一反馈信号指示控制端口处的压力。 第二个反馈信号表示卡车承受的载荷。 打开一个压力开关,当列车内的压力变为指示紧急情况的水平时。 通过控制打开和关闭应用和释放电磁阀,控制器控制撞击控制端口的压力,从而维持卡车车轮的制动。 负载称重装置包括(i)用于在制动期间电子补偿负载的电路,以及(ii)用于授予对电磁阀专用控制的电路的机构。 如果发生这种紧急情况,则机构通过将控制器与电磁阀断开来应对这种紧急情况。 这使得电路专用于磁阀。 该电路通过使用反馈信号根据预定标准,通过选择性地打开和关闭磁阀来补偿卡车在紧急制动期间承载的负载,从而控制撞击控制端口的压力大小。 没有这样的紧急情况,机构通过将控制器连接到电磁阀来应对这种缺失,由此在卡车上的这种工作制动被正常地控制,而电路仍然能够在这种制动期间补偿负载。
    • 32. 发明授权
    • Proportional polarity shift wheel slide protection
    • 比例极性换档滑轮保护
    • US5752212A
    • 1998-05-12
    • US436882
    • 1995-05-08
    • James A. WoodDavid A. Greer
    • James A. WoodDavid A. Greer
    • B60T8/58B60T8/17B60T8/1761B60T13/58B60T8/00B60T8/32
    • B60T8/1705B60T13/586
    • This invention of a proportional force modulation wheel slide protection process for steel wheel/steel rail vehicles. It applies particularly to self-propelled transit type railway vehicles. It uses a slide detection logic which predicts the force reduction needed to control slippage and correct the slide condition. The force modulation is made on the basis of the initial prediction and the time that a slide has been in effect to determine if greater force reduction is needed to effect a slide correction. Sensing of positive to negative axle rate polarity shift is used to determine when a slide has been corrected and normal braking force can be restored. This process is used to control slides by modulating both the dynamic and friction braking in like manner. The normal braking control devices are used to reduce braking force during slide correction. Although this process could be implemented through the use of discrete circuits, it lends itself to microprocessor applications.
    • 本发明用于钢轮/钢轨车辆的比例力调制轮滑块保护过程。 特别适用于自走式过境型铁路车辆。 它使用幻灯检测逻辑,其预测控制滑移所需的力减少并校正滑动条件。 力调制基于初始预测和滑块已经生效的时间来确定是否需要更大的力减小来实现滑块校正。 使用正轴负轴极性偏移的检测来确定滑块何时被校正,并且可以恢复正常的制动力。 该过程用于通过以类似的方式调节动态和摩擦制动来控制滑块。 正常的制动控制装置用于减少滑块校正期间的制动力。 虽然这个过程可以通过使用分立电路来实现,但它适用于微处理器应用。
    • 34. 发明授权
    • Compressor inlet valve
    • 压缩机入口阀
    • US5388968A
    • 1995-02-14
    • US282114
    • 1994-07-28
    • James A. WoodRobert R. Ball
    • James A. WoodRobert R. Ball
    • F04B39/08F04B49/00
    • F04B39/08F04B2205/01Y10T137/7761
    • An electronically controlled gas compressor inlet valve includes a housing mounted on the compressor in fluid communication with an inlet of the compressor. A piston member is moveable linearly within the housing along a path of travel, into and out of occluding relation with the compressor inlet. A linear positioning device is connected to the piston member. The linear positioning device positions the piston member linearly, in a predetermined location, along the path of travel. A vent maintains a predetermined atmospheric pressure across the piston member. A sensor determines compressor inlet pressure, and generates a signal in response to a predetermined inlet pressure. A controller is operatively connected to the stepper motor for controlling actuation of the stepper motor in response to the signal generated by the sensor.
    • 电子控制的气体压缩机入口阀包括安装在压缩机上的与压缩机入口流体连通的壳体。 活塞构件沿着行进路径在壳体内线性移动,进入和离开与压缩机入口的闭塞关系。 线性定位装置连接到活塞构件。 线性定位装置将活塞构件沿着行进路径线性地定位在预定位置。 排气口在活塞构件上保持预定的大气压力。 传感器确定压缩机入口压力,并响应于预定的入口压力产生信号。 控制器可操作地连接到步进电机,以响应于由传感器产生的信号来控制步进电机的致动。
    • 36. 发明授权
    • Speed sensor gap fault-detection arrangement for multiple-axle rail
vehicles
    • 多轴轨道车辆的速度传感器间隙故障检测装置
    • US4972145A
    • 1990-11-20
    • US450484
    • 1989-12-14
    • James A. WoodJohn W. Drake
    • James A. WoodJohn W. Drake
    • G01B7/14G01P21/02
    • G01P21/02G01B7/14B60L2200/26
    • A magnetic speed sensor air gap fault-detection arrangement having a two-input AND gate for each of the two-axle trucks of a railway vehicle for conditioning a gap process circuit common to each axle. Each of the gap process circuits of each axle is activated to provide a logical "1" output to an associated two-input AND gate. The associated two-input AND gates each outputs a logical "1" to a respective gap counter circuit when the axle rate reaches a predetermined value. The respective gap counter circuits count the logical "1's" and activate an associated gap fault check circuit to reset the respective gap counter circuit and to display an error code and to output a logical "1" signal to the dynamic diagnostic apparatus.
    • 一种磁速传感器气隙故障检测装置,其具有用于铁路车辆的每个双轴卡车的双输入“与”门,用于调节每个轴共同的间隙处理电路。 激活每个轴的每个间隙处理电路以向相关联的双输入与门提供逻辑“1”输出。 当轴速度达到预定值时,相关联的双输入“与”门在相应的间隙计数器电路中分别输出逻辑“1”。 相应的间隙计数器电路对逻辑“1”进行计数,并激活相关的间隙故障检查电路以复位相应的间隙计数器电路并显示错误代码并向逻辑“1”信号输出到动态诊断装置。
    • 37. 发明授权
    • Synchronous wheel-slip protection system
    • 同步车轮保护系统
    • US4486839A
    • 1984-12-04
    • US407522
    • 1982-08-12
    • Richard J. MazurJames A. Wood
    • Richard J. MazurJames A. Wood
    • B60T8/72B60T8/17B60T8/66B60T8/08
    • B60T8/1703B60T8/1705
    • A synchronous wheel-slip control system for a multi-axle vehicle having a speed sensor for producing signals representative of the velocity of each of the wheel axle units. A differentiator connected to each of the speed sensors for differentiating the velocity signals to obtain rate signals. A plurality of truck and car rate comparators for determining when all the wheel axle units are in synchronism. A plurality of truck and car highest velocity circuits for determining the actual highest velocity signal of the wheel axle units and a car differentiator for differentiating the actual highest velocity signal to obtain the actual highest rate signal. A synchronous slip logic network for causing a data processing circuit to initiate a brake force reduction action of one of the trucks when all the wheel axle units are in synchronism and when the actual highest rate signal exceeds a requested rate.
    • 一种用于多轴车辆的同步车轮滑移控制系统,其具有用于产生表示每个轮轴单元的速度的信号的速度传感器。 连接到每个速度传感器的微分器,用于区分速度信号以获得速率信号。 用于确定所有轮轴单元何时同步的多个卡车和车速比较器。 用于确定轮轴单元的实际最高速度信号的多个卡车和轿厢最高速度电路以及用于区分实际最高速度信号以获得实际最高速率信号的轿厢微分器。 一种同步滑动逻辑网络,用于当所有轮轴单元同步并且当实际最高速率信号超过请求速率时,使数据处理电路启动其中一个卡车的制动力减小动作。