Train-order Cab Signal Or Train Control Patents (Class 246/6)
  • Patent number: 8998147
    Abstract: A train control system with pulse code-modulated cab signaling, especially for defining traveling speeds, includes a code generator acting upon a signal generator in dependence on a direction of travel. An output signal of the signal generator is supplied to a current track circuit covering a track section. In order to economize on components, the signal generator includes a transmitting device for modulating the input signals of both code generators. The transmitting device is connected to circuit connection adaptation devices on one of two entry ends of the track section through travel direction-specific outputs.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: April 7, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Peer Bohlmann, Gerald Lude
  • Patent number: 8548654
    Abstract: A message that contains train on-track information and reservation information of a train detection section and direction information and reservation information of a switch is circulated among a train detector, switch machine, signal device controller and a route indicating device. Via a signaling message, the train detector transmits the train detection result to the signal device controller and the route indicating device, the switch machine can transmit switch condition to the signal device controller, the route indicating device transmits route reservation to the switch machine and the signal device controller. Based on the transmitted train detection result, switch condition and route reservation condition, the signal device controller transmits travel permission or travel non-permission for the assigned route to a train.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: October 1, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Keiichi Katsuta, Dai Watanabe, Yoichi Sugita
  • Patent number: 8532842
    Abstract: Systems and methods for remotely controlling a rail vehicle are provided. In one embodiment, a remote operator control system includes a communication link to send and receive rail vehicle information, an operator interface, and a controller. The controller is configured to send, through the communication link, a request to establish communication with a positive train control system on-board a selected rail vehicle based on an operating condition. In response to receiving confirmation of communication with the positive train control system, the control is configured to receive positive train control information for the selected rail vehicle through the communication link, and display the positive train control information for the selected rail vehicle on the operator interface.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: September 10, 2013
    Assignee: General Electric Company
    Inventors: Kristopher Smith, Todd William Goodermuth, Brian Schroeck, Robert Bremmer, Robert Foy
  • Patent number: 8162409
    Abstract: A system (10) and method for automatically controlling braking of a train (38). The method includes applying a first degree of braking to the train during a first period of time, and then applying a second degree of braking to the train during a second time period following the first time period so that the train is slowed in a manner effective to limit a peak deceleration rate experienced by the train. The system includes a sensor (36) providing a signal indicative of an operating condition of a locomotive of the train requiring braking of the train, a memory (22) storing a braking schedule, and a processor (18) comprising logic executable for accessing the braking schedule stored in the memory responsive to the signal to automatically control braking of the locomotive according to the schedule.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: April 24, 2012
    Assignee: General Electric Company
    Inventors: Eugene A. Smith, Steven Andrew Kellner, Glen Paul Peltonen, Brian Lee Staton
  • Patent number: 8036784
    Abstract: A system for verifying the integrity of a train having a predetermined length is provided. The system includes a device for communicating and synchronizing with a detector of a circuit. The detector detects the presence/absence of a train. The device also includes an odometer providing an odometric reference at the start of occupation of the circuit and when the circuit is left by the train, a first processor calculating the distance traveled by the train on the basis of the difference between the two odometric references, a second processor calculating a minimum estimate of the length of the train that is equal to the calculated distance traveled less the algebraic length of the detection circuit and an information mechanism indicating that the train is integral when the calculated length of the train is greater than the predetermined length of the train less the length of a wagon. A method and a computer program product are also provided.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: October 11, 2011
    Assignee: Alstom Belgium S.A.
    Inventors: Jean-Pierre Franckart, Eric Lechevin
  • Patent number: 7937193
    Abstract: A scheduling system and method for moving plural objects through a multipath system described as a freight railway scheduling system. The scheduling system utilizes a resource scheduler to minimize resource exception while at the same time minimizing the global costs associated with the solution. The achievable movement plan can be used to assist in the control of, or to automatically control, the movement of trains through the system. Similar movement planners exist for moving trains in yards or terminals. Coordination is achieved and system efficiency improved by interfacing the line of road and yard planners.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: May 3, 2011
    Assignee: General Electric Company
    Inventors: Joseph Wesley Philp, Mitchell Scott Wills, Joanne Maceo
  • Patent number: 7731129
    Abstract: Methods and systems for communicating with a vehicle are provided. The method includes providing a plurality of wayside control units controlling an area along a guideway to be traveled by the vehicle, the plurality of wayside control units including a database of fixed data defining an operational profile of the guideway in a local area of an associated wayside control unit. The method also includes monitoring dynamic data in the local area of the associated wayside control unit wherein the dynamic data includes at least one of guideway availability and signal status information and transmitting wirelessly an authority message including at least one of the fixed data and the dynamic data from the associated wayside unit to a receiver on board the vehicle, the authority message dynamic data being valid for a selectable one of a plurality of time periods.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: June 8, 2010
    Assignee: General Electric Company
    Inventors: Craig Alan Stull, Stephen Harold Humphrey, John Zimmerman, Warren Burnett
  • Patent number: 7359770
    Abstract: The present invention is directed to a system and method for optimizing the dynamics and energy usage of long vehicles such as freight trains by determining their operating conditions and calculating an optimal sequence of power and braking control actions. The sequence calculated provides for optimal vehicle dynamic behaviour with minimum energy usage in accordance with the train type, track topography and train operation rules and policies. The method and system serves as a management tool for the driver and reference signals for a train cruise control or autopilot system.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: April 15, 2008
    Assignees: Central Queensland University, Queensland Railways
    Inventor: Colin Cole
  • Patent number: 6980127
    Abstract: Trainline controller including testing of signal quality on a trainline network by commanding each node to transmitter calibration signal. A signal detector is connected to the trainline at a common junction with a head end termination circuit. A stuck-on transmitter is determined by a transmission current drawn by the transceiver is on for a present amount of time.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: December 27, 2005
    Assignee: New York Air Brake Corporation
    Inventors: Anthony W. Lumbis, Dale R. Stevens, John N. Versic
  • Publication number: 20040102877
    Abstract: A positive signal comparator system comprises a transceiver located on a train for transmitting an interrogation signal to a wayside signal device and receiving a response signal from the wayside signal device, an input device through which an operator enters a signal in response to the signal received from the wayside signal device, and a controller including a signal comparator for determining if the signal input by the operator matches the signal received from the wayside signal device and taking corrective action if the operator fails to enter the proper signal. In some embodiments, the corrective action comprises activating a warning device and/or activating the train's brakes. In some embodiments, the invention further comprises a display for displaying the signal received from the wayside signal generator to the operator.
    Type: Application
    Filed: November 21, 2002
    Publication date: May 27, 2004
    Inventors: Mark Edward Kane, James Francis Shockley, Harrison Thomas Hickenlooper
  • Patent number: 6681161
    Abstract: The present invention provides methods for preventing low train voltages and managing interference, thereby improving the efficiency, reliability, and passenger comfort associated with commuter trains. An algorithm implementing neural network technology is used to predict low voltages before they occur. Once voltages are predicted, then multiple trains can be controlled to prevent low voltage events. Further, algorithms for managing inference are presented in the present invention. Different types of interference problems are addressed in the present invention such as “Interference During Acceleration”, “Interference Near Station Stops”, and “Interference During Delay Recovery.” Managing such interference avoids unnecessary brake/acceleration cycles during acceleration, immediately before station stops, and after substantial delays.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: January 20, 2004
    Assignee: San Francisco Bay Area Rapid Transit
    Inventors: Susanna P. Gordon, John A. Evans
  • Patent number: 6172619
    Abstract: A method of serialization including establishing a parameter along a length of the train between a node on one of the cars and one end of the train. The presence or absence of the parameter at each node is determined and the parameter is removed. The sequence is repeated for each node on the train. Finally, serialization of the cars is determined as a function of the number of either determined presences or absences of the parameter for each node. The parameter can be established by providing at the individual node, one at a time, an electric load across an electric line running through the length of the train and measuring an electrical property, either current or voltage, at each node. The same process is used to determine the orientation of a car. The operability of each node is determined by counting the presence and then the absence of a parameter along the whole train.
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: January 9, 2001
    Assignee: New York Air Brake Corporation
    Inventors: Anthony W. Lumbis, Dale R. Stevens
  • Patent number: 6144900
    Abstract: A linking process allows a head-end unit (HEU) of a railroad train to determine the sequence of cars in the train using wireless links between nodes on the cars, and requires no physical connection between the nodes or cars. Each car in the train is equipped with a wireless communication device which models an oscillator i. Each oscillator is phase-variable, the phase .theta..sub.i linearly increasing from 0 to 1 such that, when the i.sup.th oscillator "fires", transmitting a packet, and phase .theta..sub.i then jumps back to zero. When a car receives the transmission of another car, it changes the phase of its oscillator according to a phase-response curve function, setting up a wave pattern of transmission from nodes, from one end of the train to the other end. The wave pattern, along with protocol logic, enables each car to determine the sequence in which cars are arranged in its vicinity.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: November 7, 2000
    Assignee: General Electric Company
    Inventors: Irfan Ali, Michael Paul Weir, Kenneth Brakeley Welles, II
  • Patent number: 6119056
    Abstract: A method and an apparatus for generating a sensor signal related a track-banking angle of a banked section of track traversed by a train car wherein a track-banking angle value basically is determined from measured values of the rolling angular speed and yaw speed of the car chassis. A track-banking angle (.PHI.g) is determined in an observer unit (2), preferably estimated by use of an inverse gyro system simulation (10) of a measured-value generator (6), and compared, as an estimated track-banking angle (.PHI.gb), to a track-banking angle (.PHI.gs) determined from the transverse acceleration (aq), the yaw speed (.omega.G) and the train speed (v), as information about the track-banking angle (.PHI.g). A resulting difference (.DELTA..PHI.g) is filtered via a regulating circuit formed by a feedback from a comparator (11) to the inverse gyro system simulator (10). This signal, in the form of a track-banking angle (.PHI.b), as the signal representing the real track-banking angle (.PHI.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: September 12, 2000
    Assignee: TZN Forschungs-und Entwicklungszentrum
    Inventor: Johannes Beike
  • Patent number: 6114974
    Abstract: A method and apparatus for determining railcar order in an ECP equipped train involving the inherent propagation delay of a pneumatic signal propagation in a brake air line as measured by each car and used to determine the car order in the train.
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: September 5, 2000
    Assignee: WABTEC Railway Electronics
    Inventor: David H. Halvorson
  • Patent number: 6112142
    Abstract: A signal comparator receives switch-created signals from two stations manned by an engineer and a trainman in a locomotive and compares the signals for a match. The signals are an implementation and acknowledgement of wayside signals. One station is used to acknowledge a signal and unless a match is determined by the other operator entering the same acknowledgement within a preset time interval the system will automatically stop the train. Alarm functions and speed monitoring functions based on matched station signals are also provided. The system is automatically activated anytime a switch is operated or the speed of the train exceeds 15 mph. Signal matching is also required at period time intervals. If such acknowledgement is not forthcoming, the system assumes crew incapacitation and will automatically stop the train.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: August 29, 2000
    Assignee: Quantum Engineering, Inc.
    Inventors: James F. Shockley, Mark E. Kane
  • Patent number: 6049296
    Abstract: A method of serialization including establishing a parameter along a length of the train between a node on one of the cars and one end of the train. The presence of the parameter at each node is determined and the parameter is removed. The sequence is repeated for each node on the train. Finally, serialization of the cars is determined as a function of the number of determined presences of the parameter for each node. The parameter can be established by providing at the individual node, one at a time, an electric load across an electric line running through the length of the train and measuring an electrical property, either current or voltage, at each node. To determine the orientation of a car, each node include two subnodes. The operability of each node is determined by counting the presence and then the absence of a parameter along the whole train.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: April 11, 2000
    Assignee: New York Air Brake Corporation
    Inventors: Anthony W. Lumbis, Dale R. Stevens, Arnold W. Knight, Douglas G. Knight, Bryan M. McLaughlin
  • Patent number: 5986579
    Abstract: A method and apparatus for determining railcar order in an ECP equipped train involving the inherent propagation delay of a pneumatic signal propagation in a brake air line as measured by each car and used to determine the car order in the train.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: November 16, 1999
    Assignee: Westinghouse Air Brake Company
    Inventor: David H. Halvorson
  • Patent number: 5986577
    Abstract: A system and method for determining the position of each railroad vehicle within a train consist. The train consist includes a locomotive, at least one trainline and at least one railroad vehicle. The locomotive has a computer. The at least one trainline has a power line for supplying power to the computer and to each railroad vehicle. The system includes the computer as programmed, a vehicle computing device incorporated into each railroad vehicle, and the at least one trainline interconnecting the computer with each vehicle computing device. Each vehicle computing device contains a unique identification code. Each vehicle computing device can apply to and sense from the power line an electrical signal. The computer via the program commands sequentially each vehicle computing device, via the identification codes, to so apply the electrical signal.
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: November 16, 1999
    Assignee: Westinghouse Air Brake Company
    Inventor: Angel P. Bezos
  • Patent number: 5966084
    Abstract: A method of serialization including establishing a parameter along a length of the train between a node on one of the cars and one end of the train. The presence of the parameter at each node is determined and the parameter is removed. The sequence is repeated for each node on the train. Finally, serialization of the cars is determined as a function of the number of determined presences of the parameter for each node. The parameter can be established by providing at the individual node, one at a time, an electric load across an electric line running through the length of the train and measuring an electrical property, either current or voltage, at each node. To determine the orientation of a car, each node include two subnodes. The operability of each node is determined by counting the presence and then the absence of a parameter along the whole train.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: October 12, 1999
    Assignee: New York Air Brake Corporation
    Inventors: Anthony W. Lumbis, Dale R. Stevens, Arnold W. Knight, Douglas G. Knight, Bryan M. McLaughlin
  • Patent number: 5758848
    Abstract: An automatic switching system integrated into freight cars includes a microcomputer for controlling the automatic system and regulating the shunting speed, a rotary pulse generator for determining the shunting distance and freight car speed, distance sensors for detecting the distance to and difference in speed relative to cars in front, an automatic coupling, a brake system for controlling the speed of the freight cars in the shunting zone and precise target braking on the sorting tracks and a data transmission devices for information exchange with a superordinated control station. The automatic switching system integrated into the freight cars makes it possible to decouple the freight cars by remote control, to precisely control the shunting speed, to maintain a minimum distance between the sections for safe setting of the switches, to automatically reduce speed by braking and re-coupling on the sorting tracks as well as to conduct a remote-monitored freight car diagnosis and brake test.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: June 2, 1998
    Inventor: Erhard Beule
  • Patent number: 4944474
    Abstract: A system and method for indicating the speed of a locomotive during low speed continuous loading and or unloading of bulk materials such as coal. The system utilizes treadle switches which are equally spaced along a track, the treadle switches generating positional information which is transmitted to a receiver in the locomotive thereby enabling a very accurate indication of the speed of the vehicle to be displayed to the driver.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: July 31, 1990
    Assignee: Kooragang Coal Management Pty. Ltd.
    Inventor: Laurence W. Jones
  • Patent number: 4266273
    Abstract: A system is disclosed for controlling vehicles equipped with computer systems from a center of a rapid transit system. If at least two vehicles equipped with computer systems form a train, and the computer system of the vehicle controlling the train fails, the control of the train can be shifted onto the computer system of another vehicle. Therefore, the individual on-board computers need not be fully redundant.
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: May 5, 1981
    Assignee: International Standard Electric Corporation
    Inventors: Karl-Ulrich Dobler, Sigurd Mura, Erhard Kraft