Railway Vehicle Speed Control Patents (Class 701/20)
  • Publication number: 20120130568
    Abstract: A data communication system for a rail vehicle consist includes a data reading device and a processing module. The data reading device is disposed on the consist and is configured to interrogate and read data from a tangible and non-transitory medium that is spaced apart from the data reading device. The processing module is disposed on the rail vehicle consist and is communicatively coupled with the data reading device. The processing module receives the data from the data reading device and uses the data in connection with one or more operations of the rail vehicle consist. A method for communicating data with a rail vehicle consist includes interrogating and reading data from a tangible and non-transitory medium using an electronic reading device while the medium is spaced apart from the reading device and using the data in connection with one or more operations of the rail vehicle consist based on the data.
    Type: Application
    Filed: March 14, 2011
    Publication date: May 24, 2012
    Applicant: General Electric Company
    Inventors: Samuel GOLDEN, David Eldredge, Robert Foy, Stephen Smith, John William Brand, Kevin Kapp
  • Patent number: 8185263
    Abstract: A computer readable storage medium has a sequence of instructions stored thereon, which, when executed by a processor, causes the processor to acquire a plurality of actual train speed measurements from at least one sensor during a journey and acquire a train power parameter corresponding to each of the plurality of actual train speed measurements. The sequence of instructions further causes the processor to estimate a plurality of resistance parameters from the plurality of actual train speed measurements and the corresponding train power parameters.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: May 22, 2012
    Assignee: General Electric Company
    Inventors: Krishnamoorthy Kalyanam, Paul K. Houpt, Manthram Sivasubramaniam
  • Publication number: 20120116617
    Abstract: A method for providing traction control on a wheeled vehicle involves receiving a speed reference signal. A variance in wheel size between a first and at least one other wheel of the vehicle is determined. Lastly, a drive control signal operable to control power to each of the first and at least one other wheel is output, the drive control signal being based on the speed reference signal and determined variance in wheel size and operable to provide that a tractive force exerted by each of the wheels on a corresponding surface during traction and/or braking is substantially similar.
    Type: Application
    Filed: February 16, 2009
    Publication date: May 10, 2012
    Applicant: Schaffler IP Pty Limited
    Inventors: Bernard Schaffler, Ren Zhou
  • Patent number: 8175764
    Abstract: A system for identifying at least one condition of at least one upcoming feature of at least one track in a track network. The system includes a positioning system for determining an estimated train position on a track within the track network, and at least one database including track data and feature data. A computer (i) obtains the determined estimated train position on at least one track from the positioning system; and (ii) for the at least one track, identifies at least one condition for at least one upcoming feature based at least in part upon the track data and the feature data in the at least one database. The feature data is dynamically updated while the train is traversing the track in the track network. A method and apparatus for identifying a condition of an upcoming feature are also provided.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: May 8, 2012
    Assignee: Wabtec Holding Corp.
    Inventor: Jeffrey D. Kernwein
  • Patent number: 8155810
    Abstract: It is an object to provide a train information management system that performs high-order priority processing of brake commands without using a relay, and that achieves improved redundancy, enables high-speed processing, and achieves high reliability with a simple configuration. For that, by performing high-order priority processing of brake notches that are created by an ATC system, an automatic train stop, and a manual braking device without using a relay, but by performing comparison processing based on logic by a train information management system, the improved redundancy, the high-speed processing, and the high reliability are achieved.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: April 10, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventor: Takashi Miyauchi
  • Patent number: 8150568
    Abstract: A synthetic image is produced which will be viewed by an operator of a train to provide the operator with important information indicative of the environment to be encountered by the train during subsequent movement of the train. This information includes information about upcoming track and highway crossings. The synthetic image may be utilized during all periods of operation of the train but will be particularly desirable during night and during periods of bad weather, such as rain, snow and fog, when normal vision is limited. The system utilizes accurate measurement of the location of the train, accurate knowledge of the path of the track and accurate knowledge of placement of track and highway crossings. Automated horn soundings, or monitoring of manual operator activations, significantly enhance safety at such track and highway crossings.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: April 3, 2012
    Inventor: Robert Gray
  • Patent number: 8145368
    Abstract: A method of controlling merging of a plurality of streams of vehicles in an automated vehicle system. The method comprises: Defining a merge control zone associated with a merge point, the merge control zone defining at least respective sections of the upstream tracks leading to the merge point; detecting a vehicle entering the merge control zone on a first one of the upstream tracks; allocating a passage time to the vehicle, the passage time being indicative of a time at which the vehicle is scheduled to pass the merge point; wherein allocating the passage time is based on a merge priority assigned to the vehicle according to a predetermined set of merge priority rules; controlling a speed of the vehicle responsive to the allocated passage time.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: March 27, 2012
    Assignee: POSCO
    Inventors: Jin Myung Won, Ingmar Andreasson
  • Patent number: 8140202
    Abstract: A train is driven by drive stations positioned along a track for frictionally contacting side plates on the train. The drive speed is controlled in response to sensors located at each drive station sensing a position of a wheel and a side plate for confirming a presence of the train. A start command is transmitted from the drive station driving the train to a second drive station downstream when a lead car is within a preselected distance from the second drive station. The drive station at the second drive station is quickly accelerated to a target speed for synchronizing the first drive station with the second drive station. After receiving the train, the second drive station then transmits a stop command to the first drive station for fast decelerating the drive station to a stop.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: March 20, 2012
    Assignee: Rail-Veyor Systems, Inc.
    Inventors: Merton F. Dibble, Joe Capers
  • Patent number: 8140203
    Abstract: A method for operating a train includes: (a) using a processor carried by the train, creating a trip profile which is computed at so as to substantially optimize an operating parameter of the train which depends on multiple operating variables; (b) operating the train along a route at speeds determined by the trip profile; (c) identifying a target location ahead of the train which cannot be cleared in a desired time if the train operates in accordance with the trip profile; and (d) operating the train at a clearing speed substantially faster than determined by the trip profile until the target location is cleared. A computer program product is provided for carrying out the method.
    Type: Grant
    Filed: April 8, 2008
    Date of Patent: March 20, 2012
    Assignee: General Electric Company
    Inventors: Joseph Forrest Noffsinger, Ajith Kuttannair Kumar, Glenn Robert Shaffer
  • Publication number: 20120065818
    Abstract: A method for operating a rail vehicle includes coasting point determination for a route section. Upon reaching that point, vehicle traction is deactivated and coasting occurs over at least part of the remaining route to a route section end. Coasting points are stored for the route section and assigned a fixed distance and fixed travel time to the section end. Upon passing the route section, continuous evaluation is performed whether a currently recorded distance to the section end is shorter than the fixed distance to the route section end for one coasting point according to a first condition, and whether a current travel time to the section end is longer than or equal to the fixed travel time to the section end according to a second condition. Possible traction deactivation is signaled when fulfilling both conditions. If not fulfilled, another stored coasting point is evaluated for fulfillment of the conditions.
    Type: Application
    Filed: April 7, 2010
    Publication date: March 15, 2012
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Stefan Haaf
  • Patent number: 8131411
    Abstract: The present interface system includes a controller monitoring pressure on a locomotive brake pipe port, controlling pressure on a train brake pipe port in response to the pressure on a locomotive brake pipe port, providing ECP commands on an ECP trainline via a train electrical terminal in response to the pressure on the locomotive brake pipe port, and providing electrical power on the ECP trainline via an train electrical trainline terminal from the locomotive electrical trainline terminal. The system includes a three position change over valve. The system also includes a wireless display unit which communicates via a transceiver with the controller and displays information from the controller to the operator remote from the interface system.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: March 6, 2012
    Assignee: New York Air Brake Corporation
    Inventors: Kumar Deepak, John Sullivan, Michael J. Spadaccini
  • Patent number: 8126601
    Abstract: A system and method for predicting a route to be authorized by a dispatcher for a vehicle to travel on a route network comprises a computer system that has a database having stored data relative to interconnecting route segments that make up the route network. Data relative to the origination location and the destination location is input into the computer system. The processor accesses the database and generates a predicted route with an origination location and destination location.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: February 28, 2012
    Assignee: General Electric Company
    Inventors: Kevin Kapp, Eric Vorndran, Daniel Pagano, Ajith Kuttannair Kumar
  • Publication number: 20120035791
    Abstract: The invention relates to a method for controlling a railway vehicle having a double drive system, wherein each drive system comprises an internal combustion engine and a transmission unit, wherein a target drive torque (M(SL)) is provided as a power requirement by means of a drive lever, wherein an actual drive torque (M(IST)) of the railway vehicle is determined and a drive torque deviation is calculated from the target drive torque (M(SL)) and the actual drive torque (M(IST)). The method further comprises determining a prediction drive type (AAP), and a target drive type (AA(SL)) in the sense of a single or double drive, a target operating point (BP(SL)), and a target transmission stage (US(SL)) are set for the transmission units, based on the drive torque deviation and the prediction drive type (AAP), by means of a traction manager (9).
    Type: Application
    Filed: March 11, 2010
    Publication date: February 9, 2012
    Applicant: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Holger Bottlang, Ingo Lehmann, Michael Willmann
  • Patent number: 8112189
    Abstract: A railway communication system (10) includes a transmitter (12) receiving an input and producing a communication signal (18). The communication signal (18) includes at least two different portions (20,22) for separately encoding respective indications (38,40) of the input. The system also includes a receiver (14) coupled to a controlled device, the receiver (14) extracting at least one of the respective indications (38,40) from the communication signal (18). The receiver controls the device responsive to the at least one extracted indications (38,40).
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: February 7, 2012
    Assignee: General Electric Company
    Inventors: David Michael Peltz, Robert James Foy, Mark Bradshaw Kraeling, Mark Wheeler, Brian Lee Staton
  • Publication number: 20120029740
    Abstract: A method and a corresponding device enable monitoring the speed of rail vehicles. In order to enable a reduction and simplification of the required system components and a speed monitoring that is not only intermittent, it is provided that the rail vehicle emits a signal, the propagation time of which is evaluated on the track side with regard to the speed. The evaluated signal is transmitted back to the rail vehicle.
    Type: Application
    Filed: March 30, 2010
    Publication date: February 2, 2012
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Ulrich Bock, Bernhard Evers, Lars Schnieder
  • Patent number: 8095253
    Abstract: A fuel efficiency improvement device for use on each of a plurality of locomotives in a consist includes a processor configured to transmit an initialization message including an identifier and power and fuel consumption rate information for the locomotive on which it is installed to all other locomotives in the consist. One of the devices is chosen to act as a lead device. The lead device is responsible for determining alternative throttle notch settings for each of the locomotives based on the power and fuel consumption rate information in the initialization message. The lead device may be chosen on the basis of identifiers in the initialization messages such as serial numbers. The alternative throttle settings may be determined using greedy value and maximum power calculations.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: January 10, 2012
    Assignee: Invensys Rail Corporation
    Inventors: Mark Edward Kane, John D. Mix, Mark M. Madden
  • Patent number: 8090486
    Abstract: A method for delivering and maintaining mandatory directives data from a central office server to an on-board system. Mandatory directives include the enforceable train control data required for a train operating on controlled track. The method enables the on-board system and the central server to exchange data in a vital manner, in part by checking for any inconsistency between i) the on-board system's data as previously transmitted and ii) the required data as represented by both a transmitted set of data identifiers and an associated error correction code.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: January 3, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Gerhard F. Meyer, Richard A. Allshouse, Robert B. Groves, Jr.
  • Patent number: 8082071
    Abstract: A system and method of scheduling the movement of trains as a function of the predicted crew behavior and predicted rail conditions based on the historical behavior of the crew for specific rail conditions.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: December 20, 2011
    Assignee: General Electric Company
    Inventors: Wolfgang Daum, John Hershey, Randall Markley, Paul Julich, Mitchell Scott Wills
  • Patent number: 8065045
    Abstract: A system which operates a digitally controlled model railroad transmitting a first command from a first client program to a resident external controlling interface through a first communications transport. A second command is transmitted from a second client program to the resident external controlling interface through a second communications transport. The first command and the second command are received by the resident external controlling interface which queues the first and second commands. The resident external controlling interface sends third and fourth commands representative of the first and second commands, respectively, to a digital command station for execution on the digitally controlled model railroad.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: November 22, 2011
    Inventor: Matthew A. Katzer
  • Publication number: 20110270475
    Abstract: Systems and methods are described for monitoring different conditions that are simultaneously or concurrently experienced by different vehicles in the same consist and using the monitored conditions to locally change operations of one or more of the vehicles. In accordance with one embodiment, operations data related to one or more vehicles of the consist is acquired from one or more of plural different locations in the consist. The operations data and location data related to where the operations data is acquired are communicated to a first vehicle of the consist. Command data is formed based on the operations data and the location data. The command data directs at least one of the vehicles in the consist to change one or more operations of the at least one of the vehicles. The command data is transmitted to one or more of the vehicles of the consist.
    Type: Application
    Filed: July 15, 2011
    Publication date: November 3, 2011
    Inventors: John BRAND, Jared COOPER, Wolfgang DAUM, Daniel BALLESTY
  • 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: 8010246
    Abstract: The present locomotive brake control system includes a vacuum relay valve responsive to air brake apply and release signals on the air brake pipe to provide vacuum brake apply and release signals on a vacuum brake pipe. A locomotive brake controller is responsive to the brake apply and release signals on the air brake pipe to control the brake cylinder to apply and release the locomotive brakes in an air mode, and is responsive to the brake apply and release signals on the vacuum brake pipe sensed by a transducer to control the brake cylinder to apply and release the locomotive brakes in a vacuum mode.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: August 30, 2011
    Assignee: New York Air Brake Corporation
    Inventors: Robert Carter, Brian Cameron, Vincent S. Guarrera, Jr., John Reynolds, Jon Marra
  • Patent number: 8000850
    Abstract: An electric vehicle is described herein which includes a microprocessor based interface module which is used to control electric motors coupled to drive wheels. The interface module is configured to include a backup communications link to allow an operator to control the vehicle in situations where control information is unavailable over a primary communications network.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: August 16, 2011
    Assignee: Oshkosh Truck Corporation
    Inventors: Nader Nasr, Christopher K. Yakes, Rongjun Zhang, Duane R. Pillar
  • Patent number: 7983805
    Abstract: A communications system for a train having spaced apart first and second locomotives each capable of lead and remote operation and rail cars. The first locomotive operating as a lead unit controlling the second locomotive operating as a remote unit. The train comprising a brake system comprising a brake pipe extending a length of the train and controlled by a brake controller in the first and second locomotives. The communications system comprises a communications channel; a station in the first locomotive issuing a first command over the channel to the second locomotive, the first locomotive applying brakes and entering a suspended operational state during which its lead operation is suspended; and a station in the second locomotive issuing a second command over the channel to the first locomotive controlling it to remote operation and controlling the second locomotive to lead operation, and terminating the suspended operational state.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: July 19, 2011
    Assignee: General Electric Company
    Inventor: Robert F. Bryant
  • Patent number: 7979170
    Abstract: A snow removal system wherein snow removers located in remote locations can be monitored and controlled at a computing device. Data collected by sensors on the snow removal unit or data collected from a secondary source can be used to control the operation of the snow removers. In one embodiment, data regarding whether it is snowing at a particular location can be collected by moister sensors on the snow removal device and verified by on-line contemporaneous weather reports corresponding to the same location.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: July 12, 2011
    Assignee: Railway Equipment Company, Inc.
    Inventors: David K. Fox, Greggory C. Phelps, Randall G. Honeck, Albert Newton
  • Publication number: 20110160943
    Abstract: A regulator includes a regulation computing section for computing and outputting an operation signal allow a process value from a controlled target to agree with a target value, and an output limiting section for restricting the operation signal from the regulation computing section for output to the controlled target. The output limiting section includes a function for outputting a limit deviation signal indicative of the degree of deviation from a predetermined limit. The regulator also includes an over-integration computing section for calculating a previous over-integration signal corresponding to a previous over-integration occurred during a previous control cycle on the basis of the speed-type integration regulating signal delivered by the regulation computing section and the limit deviation signal. The regulation computing section includes a function for allowing the previous over-integration signal to eliminate the previous over-integration by correcting an integral stored in itself.
    Type: Application
    Filed: October 10, 2008
    Publication date: June 30, 2011
    Applicant: Mitsubishi Electric Corporation
    Inventor: Hiroshi Yoshikawa
  • Patent number: 7970504
    Abstract: A system which operates a digitally controlled model railroad transmitting a first command from a first client program to a resident external controlling interface through a first communications transport. A second command is transmitted from a second client program to the resident external controlling interface through a second communications transport. The first command and the second command are received by the resident external controlling interface which queues the first and second commands. The resident external controlling interface sends third and fourth commands representative of the first and second commands, respectively, to a digital command station for execution on the digitally controlled model railroad.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: June 28, 2011
    Inventor: Matthew A. Katzer
  • Publication number: 20110125350
    Abstract: Disclosed is a method of controlling merging of a plurality of streams of vehicles in an automated vehicle system. The method comprises: Defining a merge control zone associated with a merge point, the merge control zone defining at least respective sections of the upstream tracks leading to the merge point; detecting a vehicle entering the merge control zone on a first one of the upstream tracks; allocating a passage time to the vehicle, the passage time being indicative of a time at which the vehicle is scheduled to pass the merge point; wherein allocating the passage time is based on a merge priority assigned to the vehicle according to a predetermined set of merge priority rules; controlling a speed of the vehicle responsive to the allocated passage time.
    Type: Application
    Filed: May 26, 2009
    Publication date: May 26, 2011
    Applicant: POSCO
    Inventors: Jin Myung Won, Ingmar Andreasson
  • Patent number: 7949441
    Abstract: Method for controlling the level of tractive efforts in a train having a first locomotive at a head end of the train, constituting a lead locomotive, and a second locomotive positioned in the train behind the lead locomotive, constituting a remote locomotive, with the remote locomotive being configured to selectively operate in either of two modes of operation, such as a first mode in which the locomotive operates at a full tractive effort level of operation and a second mode in which the locomotive operates in a partial tractive effort level of operation producing a tractive effort which is less than the full tractive effort of the locomotive. The method allows selecting (e.g., at the lead locomotive) one of the two modes of operation for producing a level of tractive effort appropriate for conditions as the train moves along a length of track. The method further allows transmitting a signal indicative of the selected mode of operation from the lead locomotive to the remote locomotive.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: May 24, 2011
    Assignee: General Electric Company
    Inventors: Mirza Aref Ahmed Baig, Richard L. Evans, Scott Sexauer, Christopher E. Pallo, Ning Zhang, Steven Andrew Kellner, Leonard Hill, Bruce M. Sweeley, James Glen Corry
  • Publication number: 20110118899
    Abstract: Methods and systems are provided for controlling movement of a train including a plurality of locomotives along a route. In one example, the method comprises, generating a first plan profile, the first plan profile including synchronous settings for the locomotives over a route, and generating a second plan profile based on the first plan profile, the second plan profile including independent settings for the locomotives over at least one region within the route. The method may further comprise, operating the locomotives based in the first and/or second plan profiles. In another example, the method comprises, generating a plan profile with fully independent settings for the locomotives over the entire route, the fully independent settings based on cost function coefficients of each locomotive.
    Type: Application
    Filed: May 5, 2010
    Publication date: May 19, 2011
    Inventors: James D. Brooks, Ajith Kuttannair Kumar, Bernardo Adrian Movsichoff, Ramu Chandra
  • Publication number: 20110118914
    Abstract: Methods and systems are provided for controlling movement of a train including a plurality of locomotives along a route. In one example, the method comprises, generating a first plan profile, the first plan profile including synchronous settings for the locomotives over a route, and generating a second plan profile based on the first plan profile, the second plan profile including independent settings for the locomotives over at least one region within the route. The method may further comprise, operating the locomotives based in the first and/or second plan profiles. In another example, the method comprises, generating a plan profile with fully independent settings for the locomotives over the entire route, the fully independent settings based on cost function coefficients of each locomotive.
    Type: Application
    Filed: May 5, 2010
    Publication date: May 19, 2011
    Inventors: James D. BROOKS, Ajith Kuttannair Kumar, Bernardo Adrian Movsichoff, Ramu Chandra
  • Publication number: 20110093144
    Abstract: A system for communicating data in a train is provided. The system includes at least one respective router transceiver unit positioned in each of at least two rail vehicles of the train. Each router transceiver unit is coupled to a trainline that extends between the rail vehicles. The trainline is an existing cable bus used in the train for transferring propulsion control data between the rail vehicles that controls at least one of tractive effort or braking effort of the rail vehicles. The router transceiver units are configured to communicate network data over the trainline. In one embodiment, the trainline is an Electrically Controlled Pneumatic (ECP) trainline and the propulsion control data is ECP brake data used to control operations of brakes in the train.
    Type: Application
    Filed: December 29, 2010
    Publication date: April 21, 2011
    Inventors: Todd GOODERMUTH, David PELTZ
  • Patent number: 7917345
    Abstract: A train simulator, including a microprocessor, a display and an input device for the microprocessor. A program drives the display with the track data during simulation, determines if an exception has occurred during the simulation; and provides a multimedia message if an exception has occurred.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: March 29, 2011
    Assignee: New York Air Brake Corporation
    Inventor: Michael J Hawthorne
  • Patent number: 7904215
    Abstract: A system which operates a digitally controlled model railroad transmitting a first command from a first client program to a resident external controlling interface through a first communications transport. A second command is transmitted from a second client program to the resident external controlling interface through a second communications transport. The first command and the second command are received by the resident external controlling interface which queues the first and second commands. The resident external controlling interface sends third and fourth commands representative of the first and second commands, respectively, to a digital command station for execution on the digitally controlled model railroad.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: March 8, 2011
    Inventor: Matthew A. Katzer
  • Patent number: 7904216
    Abstract: According to one embodiment, an electric train control apparatus having a plurality of electric motors and a plurality of inverters configured to control electric motors, independently of one another, including shaft speed calculating units respectively, and configured to calculate shaft speeds of electric motors, reference speed calculating unit configured to calculate a reference speed from shaft speeds of electric motors, acceleration detection control units configured to calculate torque reduction values from rates at which shaft speeds calculated, slip speed control units configured to reduce torques in accordance with a difference between shaft speeds of electric motors, state monitoring units configured to monitor states of detecting shaft speeds and output state signals, and changeover unit configured to switch control of inverters, between control performed by acceleration detection control units and control performed by slip speed control units, in accordance with state signals received from state m
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: March 8, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yosuke Nakazawa, Tetsu Tone
  • Publication number: 20110046827
    Abstract: The present disclosure relates to an apparatus and method for controlling speed in an automatic train operation, capable of estimating and controlling a speed at which a train should run at each position where the train will run in order to satisfy a restrictive speed profile and to make passengers comfortable by observing acceleration limit and jerk limit in case of accelerating or decelerating the train.
    Type: Application
    Filed: August 13, 2010
    Publication date: February 24, 2011
    Inventors: Young Hwan Yoon, Yung Bang
  • Patent number: 7890223
    Abstract: A system for remotely monitoring compliance with a railroad signal associated with a section of railroad track includes a remote aspect compliance subsystem for monitoring compliance with an indication for the section of railroad track represented by an aspect of the railroad signal. The remote aspect compliance subsystem selectively generates corresponding compliance messages, which are communicated via a network to server for display and processing.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: February 15, 2011
    Assignee: BNSF Railway Company
    Inventor: Ralph Young
  • Publication number: 20110029167
    Abstract: A train slide control device and a train slide control method capable of further improving the precision of slide control are achieved. The train slide control device comprises: an electromagnetic valve unit; a relay valve that outputs a pressure of the brake cylinder; and a slide controller that includes: a velocity-difference detecting unit that detects a velocity difference of each wheel based on a velocity signal; a deceleration calculating unit that calculates a deceleration of a train based on the velocity signal; a sliding-amount determining unit that determines a sliding-amount of each wheel based on the velocity difference and deceleration; and a brake-cylinder-pressure calculating unit that calculates a pressure control signal for controlling a pressure of the brake cylinder based on: the sliding-amount; a brake command for obtaining a predetermined deceleration; and a signal that indicates the pressure of the compressed air and a pressure of the brake cylinder.
    Type: Application
    Filed: May 8, 2009
    Publication date: February 3, 2011
    Inventors: Yasuharu Itano, Hiroshi Yamada, Etsuji Matsuyama
  • Publication number: 20100332058
    Abstract: A speed profile for an entire train trip includes a maximum allowable speed at each point of the entire trip, taking into account the ability of the train to comply with speed reductions encountered during the trip. The speed profile includes a braking curve that gradually reduces from a higher speed to a lower speed starting at a point at which the train must begin braking in order to be traveling at the lower speed when the train reaches the point at which the lower speed limit begins. The speed profile is generated on multiple wayside computers, cross checked, and then vitally transmitted to an onboard locomotive control system. The onboard control system includes redundant speed sensors with redundant vital circuits, and also includes redundant speed comparators to ensure that the train doesn't exceed the speed profile. A GPS receiver may be used for greater reliability.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 30, 2010
    Applicant: QUANTUM ENGINEERING, INC.
    Inventors: Mark Edward Kane, Harrison Thomas Hickenlooper
  • Publication number: 20100324761
    Abstract: According to one embodiment, an electric train control apparatus having a plurality of electric motors and a plurality of inverters configured to control electric motors, independently of one another, including shaft speed calculating units respectively, and configured to calculate shaft speeds of electric motors, reference speed calculating unit configured to calculate a reference speed from shaft speeds of electric motors, acceleration detection control units configured to calculate torque reduction values from rates at which shaft speeds calculated, slip speed control units configured to reduce torques in accordance with a difference between shaft speeds of electric motors, state monitoring units configured to monitor states of detecting shaft speeds and output state signals, and changeover unit configured to switch control of inverters, between control performed by acceleration detection control units and control performed by slip speed control units, in accordance with state signals received from state m
    Type: Application
    Filed: August 9, 2010
    Publication date: December 23, 2010
    Inventors: Yosuke NAKAZAWA, Tetsu TONE
  • Publication number: 20100319565
    Abstract: An overhead mass transportation system for cities and urban areas may be particularly suitable for environmentally acceptable, or “green”, systems because it can be used to produce power by an optional super solar system deployed, for example, over the tracks. The mass transportation system may meet many current economic and environmental needs. In many urban areas around the world, the mass transportation system can replace buses and taxis on the street, with their noise and pollution, and reduce the use of oil and fuel. The system can also be used for inter-cities transportation, where in can dispense with the need to carry large amounts of fuel for long distance transportation. The system may also be suitable for areas with challenged trains, such as those areas with a high level of floods, snow, or the like. Furthermore, the system may be suitable for desert transportation or transportation over waterways or between islands.
    Type: Application
    Filed: June 16, 2010
    Publication date: December 23, 2010
    Inventor: JP H. MOBASHER
  • Publication number: 20100318247
    Abstract: A system for regulating the speed, position and/or power of a powered vehicle, which is traveling on a track system according to a planned trip. The system comprises a database having data relative to the planned trip including a plurality of elapsed travel times associated with a planned speed, position and power. One or more controllers provide data including data relative to an operating speed, position and power of the vehicle during the trip and an operating time at which the vehicle is traveling at the operating speed, power or position. A regulator may adjust the operating parameter of the vehicle if the difference between the vehicle operating data and planned trip data exceeds a predetermined threshold speed.
    Type: Application
    Filed: June 12, 2009
    Publication date: December 16, 2010
    Inventor: Ajith Kuttannair Kumar
  • Publication number: 20100305788
    Abstract: The invention relates to a method for adapting at least one parameter in a controlled system of a vehicle, wherein at least some of the possible positions of the vehicle within a road network that can be traveled by the vehicle are associated with at least one position-related boundary condition of the road network. The at least one parameter in the controlled system of the vehicle is adapted during travel as a function of the current position of the vehicle based on the position-related boundary conditions that are present there.
    Type: Application
    Filed: September 17, 2008
    Publication date: December 2, 2010
    Applicant: KNORR-BREMSE SYSTEME FUR SCHIENENFAHRZEUGE GMBH
    Inventor: Manfred Walter
  • Publication number: 20100299007
    Abstract: A method and an apparatus for an on-board train control device are provided, and are based on converting speed codes received from wayside cab-signaling devices into movement authority limits. The device determines the train location independent of the wayside train detection system, and generates and enforces stopping profiles based on said movement authority limits.
    Type: Application
    Filed: May 19, 2009
    Publication date: November 25, 2010
    Inventor: Nabil N. Ghaly
  • Patent number: 7840338
    Abstract: An apparatus, and related method, for monitoring and controlling the traffic of transport systems, such as railway vehicles, wherein the vehicles include device elements, such as satellite positioning systems, monitored by a series of centralized units to monitor and control adjacent areas. In case of anomalous traffic situations, the system and method provides proper alarm signals and signals for automatically putting into action the breaking systems of the vehicles. To do so, the devices can interface with breaking means and sensors placed along the railway paths and in the vehicles, and exchange positioning data or other kinds of data of various sensors, among vehicles running within a certain mutual distance and can further include a secured memory means for storing data, information and parameters.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: November 23, 2010
    Assignee: MP S.R.L.
    Inventor: Marco Paolacci
  • Patent number: 7835830
    Abstract: A device for generating safe status signals of a vehicle (9) that is movable along a given guideway includes data transmitters disposed along said guideway and provided with data (28a, 28b), data acquisition units (21) mounted on the vehicle and used for scanning the data transmitters and for supplying data signals, and an evaluation device (24) connected to said data acquisition units (21) evaluating the data signals. At least two of the data acquisition units (21) are provided which are connected to the evaluation device (24), and the evaluation device (24) has an output (25) for delivering safe status signals when and as long as at least two data acquisition units (21) supply matching data.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: November 16, 2010
    Assignee: ThyssenKrupp Transrapid GmbH
    Inventors: Siegfried Ellmann, Freidrich Loeser
  • Publication number: 20100280683
    Abstract: It is an object to provide a train information management system that performs high-order priority processing of brake commands without using a relay, and that achieves improved redundancy, enables high-speed processing, and achieves high reliability with a simple configuration. For that, by performing high-order priority processing of brake notches that are created by an ATC system, an automatic train stop, and a manual braking device without using a relay, but by performing comparison processing based on logic by a train information management system, the improved redundancy, the high-speed processing, and the high reliability are achieved.
    Type: Application
    Filed: December 1, 2008
    Publication date: November 4, 2010
    Applicant: Mitsubishi Electric Corporaiton
    Inventor: Takashi Miyauchi
  • Patent number: 7822515
    Abstract: An ocean bottom cable system includes a sensor cable configured to be extended from a vessel to the bottom of the body of water. The sensor cable includes a plurality of seismic sensor units at spaced apart locations. A lead in cable is coupled at a to at least one of the vessel and a buoy, and to an aft lead in cable segment. The segment includes a cable loop to compensate water-caused motion of the lead in cable substantially without moving the sensor units. A first swivel is disposed between a forward end of the sensor cable and an aft end of the aft lead in cable segment. The first swivel enables relative rotation between the sensor cable and the segment. At least a second swivel is disposed between the second end of the lead in cable and a forward end of the aft lead in segment.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: October 26, 2010
    Assignee: PGS Americas, Inc.
    Inventors: Nicholas C. George, Ole-Fredrik Semb
  • Publication number: 20100262321
    Abstract: A method for improving train performance, the method including determining a rail car parameter for at least one rail car to be included in a train, and creating a train trip plan based on the rail car parameter in accordance with one or more operational criteria for the train.
    Type: Application
    Filed: January 9, 2007
    Publication date: October 14, 2010
    Inventors: Wolfgang Daum, John Erik Hershey, David Michael Peltz, Glenn Robert Shaffer, Joseph Forrest Noffsinger, John Borntraeger, Ajith Kumar
  • Publication number: 20100241296
    Abstract: A method of controlling braking of a train that includes obtaining in an on-board computer of the train a brake propagation delay time (Td), a brake build-up time (T) and a maximum brake rate (?max) for the train, and controlling braking of the train in the on-board computer by generating one or more braking signals for the train using Td, T and ?max. Also, a methods of determining for a train a profile velocity to a target position of a selected target, selecting a most restrictive target from among a plurality of targets for a train, and determining a plurality of braking parameters for a train having a train consist, wherein the parameters include a brake propagation delay time (Td), a brake build-up time (T) and a maximum brake rate (?max).
    Type: Application
    Filed: February 11, 2010
    Publication date: September 23, 2010
    Applicant: Ansaldo STS USA, Inc.
    Inventors: William Stover Rhea, JR., Chinnarao Mokkapati, Robert D. Pascoe, Brian Michael Nypaver