Railroad brake pipe overcharge and separation detection system
    1.
    发明授权
    Railroad brake pipe overcharge and separation detection system 失效
    铁路制动管过充分离检测系统

    公开(公告)号:US06375275B1

    公开(公告)日:2002-04-23

    申请号:US09475821

    申请日:1999-12-30

    IPC分类号: B60T1368

    CPC分类号: B60T17/228 B60T13/665

    摘要: A brake pipe overcharge detection scheme determines when an overcharge situation occurs followed by an interruption of the brake pipe slow pressure reduction process of the brake system assimilation. When the slow pressure reduction process is interrupted, the rail cars may be left in an overcharged state (i.e., the car braking system is charged to a pressure greater than the normal brake pipe pressure). When the brake pipe pressure is set to its normal brake-release value, the pressure of the car braking systems will be greater than the brake pipe pressure. The car braking system will interpret this positive pressure differential as a request to set the car brakes, and will therefore partially apply the car brakes. As a result, additional drag forces will be encountered by the locomotive as it moves the train, which may result in train separations, and overheating of the car brake shoes and wheels may result in cracked wheels and derailments.

    摘要翻译: 制动管过充电检测方案确定何时发生过充电情况,然后中止制动系统同步的制动管慢压减压过程。 当缓慢压力降低过程中断时,轨道车辆可能处于过充电状态(即,轿厢制动系统被充入大于正常制动管道压力的压力)。 当制动管压力设定为其正常制动释放值时,轿厢制动系统的压力将大于制动管压力。 汽车制动系统将将这种正压差解释为设置汽车制动器的要求,因此将部分应用汽车制动器。 结果,机车在移动火车时会遇到额外的拖曳力,这可能导致列车分离,并且汽车制动蹄和车轮的过热可能导致车轮破裂和脱轨。

    Adaptive air brake control system
    2.
    发明授权
    Adaptive air brake control system 失效
    自适应空气制动控制系统

    公开(公告)号:US4946229A

    公开(公告)日:1990-08-07

    申请号:US360417

    申请日:1989-06-02

    IPC分类号: B60T13/40 B60T17/22

    CPC分类号: B60T17/228 B60T13/406

    摘要: An adaptive brake control system monitors a plurality of brake pipe/air line parameters, such as fluid path volume and air flow rate, and controllably modifies action taken by the engineman or performs emergency control of the brakes, in order to continuously enable the brake system to adapt itself to dynamic operating conditions and anomalies in the integrity of the fluid path. In accordance with a pressure reduction modification mechanism, the application of a pressure reduction to the equalizing reservoir is precisely controlled by taking into account the actual state of the brake pipe, so as to ensure that the requested brake application is effected as intended. The control mechanism also monitors the integrity of the fluid flow path of the brake pipe/train air line, so that the engineman may be alerted and a prescribed train safety measure may be effected in the event of a potentially hazardous anomaly in the link. It also provides the engineman with a precise indication that the brake of the train have been fully released or applied.

    摘要翻译: 自适应制动控制系统监视多个制动管/空气管线参数,例如流体路径体积和空气流量,并且可控制地修改工作人员采取的动作或执行制动器的紧急控制,以便使制动系统 以适应动态操作条件和流体路径完整性的异常。 根据减压修改机构,通过考虑制动管的实际状态来精确地控制向均衡油箱施加减压,以确保所要求的制动器施加按照预期进行。 控制机构还监控制动管/列车空气管线的流体流路的完整性,从而可以提醒工程师,并且在链路中存在潜在的危险异常的情况下可以实施规定的列车安全措施。 它还为工程师提供了火车制动完全释放或应用的精确指示。

    Adaptive air brake control system
    3.
    发明授权
    Adaptive air brake control system 失效
    自适应空气制动控制系统

    公开(公告)号:US4859000A

    公开(公告)日:1989-08-22

    申请号:US232466

    申请日:1988-08-15

    IPC分类号: B60T13/40 B60T17/22

    CPC分类号: B60T13/406 B60T17/228

    摘要: An adaptive brake control system monitors a plurality of brake pipe/air line parameters, such as fluid path volume and air flow rate, and controllably modifies action taken by the engineman or performs emergency control of the brakes, in order to continuously enable the braking system to adapt itself to dynamic operating conditions and anomalies in the integrity of the fluid path. In accordance with a pressure reduction modification mechanism, the application of a pressure reduction to the equalizing reservoir is precisely controlled by taking into account the actual state of the brakepipe, so as to ensure that the requested brake application is effected as intended. The control mechanism also monitors the integrity of the fluid flow path of the brake pipe/train air line, so that the engineman may be alerted and a prescribed train safety measure may be effected in the event of a potentially hazardous anomaly in the link. It also provides the engineman with a precise indication that the brakes of the train have been fully released or applied.

    摘要翻译: 自适应制动控制系统监视多个制动管/空气管线参数,例如流体路径体积和空气流量,并且可控制地修改工作人员采取的动作或执行制动器的紧急控制,以便连续地使制动系统 以适应动态操作条件和流体路径完整性的异常。 根据减压修改机构,通过考虑到制动器的实际状态来精确地控制向均衡储存器施加减压,以便确保所要求的制动器施加是按预期实现的。 控制机构还监控制动管/列车空气管线的流体流路的完整性,从而可以提醒工程师,并且在链路中存在潜在的危险异常的情况下可以实施规定的列车安全措施。 它还向工程师提供了火车制动器已经完全释放或应用的精确指示。

    Adaptive air braking system with correction for second order transient
effects
    4.
    发明授权
    Adaptive air braking system with correction for second order transient effects 失效
    具有二阶瞬态效应校正的自适应空气制动系统

    公开(公告)号:US5056873A

    公开(公告)日:1991-10-15

    申请号:US581792

    申请日:1990-09-13

    IPC分类号: B60T17/22

    CPC分类号: B60T17/228

    摘要: Method and apparatus for compensating for transient effects in pneumatically operated air brake system for a railway vehicle. A look up table or experimentally determined second order correction values is stored in a memory. Based on the magnitude of a previous application of the brakes, a correction value is selected from the look up table having a magnitude to compensate for transient errors in the system. The correction value is then diminished by fixed decrements at fixed intervals. Upon a subsequent application of the brakes, the diminished correction value is used to adjust the pressure communicated to braking mechanisms located on the train cars.

    摘要翻译: 用于补偿铁路车辆气动空气制动系统中的瞬态效应的方法和装置。 查询表或实验确定的二阶校正值存储在存储器中。 基于先前应用制动器的大小,从具有用于补偿系统中的瞬态误差的幅度的查找表中选择校正值。 校正值然后以固定的间隔减少固定的减量。 在随后的制动器应用时,使用减小的校正值来调节传递到位于火车车厢上的制动机构的压力。

    Railroad air brake system
    5.
    发明授权
    Railroad air brake system 失效
    铁路空气制动系统

    公开(公告)号:US4553723A

    公开(公告)日:1985-11-19

    申请号:US532522

    申请日:1983-09-15

    IPC分类号: B60T13/66 B61L3/00

    CPC分类号: B60T13/665

    摘要: A radio communication control system for a lead unit and a plurality of remote units is disclosed. The system has a protocol for establishing a communication link between the lead unit and the one or more remote units in the system which prevents any of the units in that system from processing messages or commands from other units in other train systems or processing messages or commands originating from units within a train system which are addressed to other units within the system. The communication system also includes a communications channel contention system for minimizing the probability of multiple units transmitting on the common communication channel at the same time and for insuring that the highest priority communications in each train are transmitted first in time measured from the end of the latest transmission on the radio communications channel. The invention also includes apparatus for verifying the establishment of the communications link by signaling through the mechanical coupling in the train and monitoring the radio response. The invention further includes an improved flow rate sensor for use in a remote unit for determining when significant air flows occur into the brake pipe of the remote unit. The invention further includes an air pressure regulation system which prevents the fluctuation of the air pressure in the equalizing reservoir of the lead and remote units consequent from either leakage or change in the ambient temperature.

    摘要翻译: 公开了一种用于引导单元和多个远程单元的无线电通信控制系统。 该系统具有用于在引导单元和系统中的一个或多个远程单元之间建立通信链路的协议,其阻止该系统中的任何单元处理来自其他列车系统中的其他单元的消息或命令或处理消息或命令 来自列车系统内的单元,其被发送到系统内的其他单元。 通信系统还包括通信信道争用系统,用于在同一时间将公共通信信道上的多个单元发送的概率最小化,并确保每个列车中的最高优先级通信在时间上从最新的时间 无线电通信信道上的传输。 本发明还包括用于通过通过列车中的机械耦合进行信令并且监视无线电响应来验证通信链路的建立的装置。 本发明还包括一种用于远程单元的改进的流量传感器,用于确定何时重要的空气流出现在远程单元的制动管中。 本发明还包括一个空气压力调节系统,其防止由于泄漏或环境温度变化引起的铅和远程单元的均压容器中的空气压力波动。

    Railroad communication system
    6.
    发明授权
    Railroad communication system 失效
    铁路通信系统

    公开(公告)号:US4582280A

    公开(公告)日:1986-04-15

    申请号:US532147

    申请日:1983-09-14

    摘要: A radio communication control system for a lead unit and a plurality of remote units is disclosed. The system has a protocol for establishing a communication link between the lead unit and the one or more remote units in the system which prevents any of the units in that system from processing messages or commands from other units in other train systems or processing messages or commands originating from units within a train system which are addressed to other units within the system. The communication system also includes a communications channel contention system for minimizing the probability of multiple units transmitting on the common communication channel at the same time and for insuring that the highest priority communications in each train are transmitted first in time measured from the end of the latest transmission on the radio communications channel. The invention also includes apparatus for verifying the establishment of the communications link by means of signaling through the mechanical coupling in the train and monitoring the radio response. The invention further includes an improved flow rate sensor for use in a remote unit for determining when significant air flows occur into the brake pipe of the remote unit. The invention further includes an air pressure regulation system which prevents the fluctuation of the air pressure in the equalizing reservoir of the lead and remote units consequent from either leakage or change in the ambient temperature.

    摘要翻译: 公开了一种用于引导单元和多个远程单元的无线电通信控制系统。 该系统具有用于在引导单元和系统中的一个或多个远程单元之间建立通信链路的协议,其阻止该系统中的任何单元处理来自其他列车系统中的其他单元的消息或命令或处理消息或命令 来自列车系统内的单元,其被发送到系统内的其他单元。 通信系统还包括通信信道争用系统,用于在同一时间将公共通信信道上的多个单元发送的概率最小化,并确保每个列车中的最高优先级通信在时间上从最新的时间 无线电通信信道上的传输。 本发明还包括用于通过借助于列车中的机械耦合的信令来验证通信链路的建立并监视无线电响应的装置。 本发明还包括一种用于远程单元的改进的流量传感器,用于确定何时重要的空气流出现在远程单元的制动管内。 本发明还包括一个空气压力调节系统,其防止由于泄漏或环境温度变化引起的铅和远程单元的均压容器中的空气压力波动。

    Railroad communication system
    7.
    发明授权
    Railroad communication system 失效
    铁路通信系统

    公开(公告)号:US5039038A

    公开(公告)日:1991-08-13

    申请号:US416516

    申请日:1989-10-03

    摘要: A radio communication control system for a lead unit and a plurality of remote units is disclosed. The system has a protocol for establishing a communication link between the lead unit and the one or more remote units in the system which prevents any of the units in that system from processing messages or commands from other units in other train systems or processing messages or commands originating from units within a train system which are addressed to other units within the system. The communication system also includes a communications channel contention system for minimizing the probability of multiple units transmitting on the common communication channel at the same time and for insuring that the highest priority communications in each train are transmitted first in time measured from the end of the latest transmission on the radio communications channel. The invention also includes apparatus for verifying the establishment of the communications link by means of signaling through the mechanical coupling in the train and monitoring the radio response. The invention further includes an improved flow rate sensor for use in a remote unit for determining when significant air flows occur into the brake pipe of the remote unit. The invention further includes an air pressure regulation system which prevents the fluctuation of the air pressure in the equalizing reservoir of the lead and remote units consequent from either leakage or change in the ambient temperature.

    摘要翻译: 公开了一种用于引导单元和多个远程单元的无线电通信控制系统。 该系统具有用于在引导单元和系统中的一个或多个远程单元之间建立通信链路的协议,其阻止该系统中的任何单元处理来自其他列车系统中的其他单元的消息或命令或处理消息或命令 来自列车系统内的单元,其被发送到系统内的其他单元。 通信系统还包括通信信道争用系统,用于在同一时间将公共通信信道上的多个单元发送的概率最小化,并确保每个列车中的最高优先级通信在时间上从最新的时间 无线电通信信道上的传输。 本发明还包括用于通过借助于列车中的机械耦合的信令来验证通信链路的建立并监视无线电响应的装置。 本发明还包括一种用于远程单元的改进的流量传感器,用于确定何时重要的空气流出现在远程单元的制动管中。 本发明还包括一个空气压力调节系统,其防止由于泄漏或环境温度变化引起的铅和远程单元的均压容器中的空气压力波动。

    Engine monitoring system
    8.
    发明授权
    Engine monitoring system 失效
    发动机监控系统

    公开(公告)号:US4408483A

    公开(公告)日:1983-10-11

    申请号:US294990

    申请日:1981-08-21

    IPC分类号: F02B3/06 G01M15/08 G01M15/00

    CPC分类号: G01M15/08 F02B3/06

    摘要: A system for monitoring the performance of an internal combustion engine includes a pressure sensor that has a mounting configuration external to the cylinders such that it is capable of monitoring the pressures within two adjacent cylinders. The signal output of the sensor is filtered to remove undesired engine noise and blank out those signals which are unrelated to compression and firing, thereby reducing errors in the signal output. After filtering the signals to reduce noise, a successive number of samples related to compression and firing are obtained to provide an adequate number of signals which will average out mechanical and electrical noise. From the successive samples, a straight line approximation of the slope of the cylinder pressure curve, relative to crank angle, is obtained. The derived slope values are compared with upper and lower limits to determine whether or not the pressure within the engine cylinder of interest is acceptable. If the upper limit is exceeded or if the value obtained is less than the lower limit a fault in the cylinder operation is assumed to have occurred. This fault measurement and analysis procedure is repeated a prescribed number of times and if the problem continues to occur over a predetermined consecutive number of measurements, then a fault indication is generated.

    摘要翻译: 用于监测内燃机性能的系统包括压力传感器,该压力传感器具有在气缸外部的安装配置,使得其能够监测两个相邻气缸内的压力。 对传感器的信号输出进行滤波以消除不期望的发动机噪声,并清除与压缩和点火无关的信号,从而减少信号输出中的误差。 在对信号进行滤波以降低噪声之后,获得与压缩和触发相关的连续数量的采样,以提供足够数量的信号,其将平均机械和电气噪声。 从连续的样品中,获得相对于曲轴角度的气缸压力曲线的斜率的直线近似。 将导出的斜率值与上限和下限进行比较,以确定感兴趣的发动机气缸内的压力是否可接受。 如果超过上限,或者如果所获得的值小于下限,则假定发生了气缸操作中的故障。 该故障测量和分析过程重复规定次数,并且如果问题在预定的连续数量的测量中继续发生,则产生故障指示。