Including Means To Sense Or Control Car Position Or Attitude With Respect To Guideway Patents (Class 104/284)
  • Patent number: 9689934
    Abstract: A method and system for determining a force experienced by an object of interest (OOI) within a magnetic field is disclosed. The method includes moving the OOI toward an expected position by altering the magnetic field and then calculating force information associated with the force experienced by the OOI. The force calculation based on a comparing the new position of the OOI vs the expected position of the OOI. The force calculations include magnetic flux measurements.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: June 27, 2017
    Inventors: Mir Behrad Khamesee, Moein Mehrtash
  • Patent number: 9512515
    Abstract: An organic layer deposition apparatus, and a method of manufacturing an organic light-emitting display device using the organic layer deposition apparatus. The organic layer deposition apparatus includes: an electrostatic chuck that fixedly supports a substrate that is a deposition target; a deposition unit including a chamber maintained at a vacuum and an organic layer deposition assembly for depositing an organic layer on the substrate fixedly supported by the electrostatic chuck; and a first conveyer unit for moving the electrostatic chuck fixedly supporting the substrate into the deposition unit, wherein the first conveyer unit passes through inside the chamber, and the first conveyer unit includes a guide unit having a receiving member for supporting the electrostatic chuck to be movable in a direction.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: December 6, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok-Rak Chang, Myeng-Woo Nam, Hee-Cheol Kang, Jong-Heon Kim, Jong-Won Hong, Uno Chang
  • Patent number: 9346371
    Abstract: Aspects of the invention provide a transport system powered by short block Linear Synchronous Motors (LSMs). The use of short blocks allows vehicles to move under precise control even when they are in close proximity to each other. The design allows the vehicles to be propelled and guided while negotiating sharp turns and negotiating merge and diverge switches. A coreless LSM can be used to create propulsive force without attractive force so as to allow a relatively high drag vehicle suspension, such as a vehicle sliding on a smooth surface.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: May 24, 2016
    Assignee: MAGNEMOTION, INC.
    Inventors: Nathanael N. King, Brian M. Perreault, Tracy M. Clark, Richard D. Thornton, Jason Young, Michael W. Bottasso
  • Patent number: 9193565
    Abstract: A guide device (26) for use in an elevator system includes an elevator guide roller (30) having a hardness that varies depending on a speed of rotation of the guide roller (30). In a disclosed example, a magnetorheological fluid within the guide roller (30) changes viscosity depending on the speed of rotation. One example includes varying an influence of a first magnetic field on the magnetorheological fluid to change the viscosity.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: November 24, 2015
    Assignee: Otis Elevator Company
    Inventor: Zbigniew Piech
  • Patent number: 8967051
    Abstract: Aspects of the invention provide a transport system powered by short block Linear Synchronous Motors (LSMs). The use of short blocks allows vehicles to move under precise control even when they are in close proximity to each other. The design allows the vehicles to be propelled and guided while negotiating sharp turns and negotiating merge and diverge switches. A coreless LSM can be used to create propulsive force without attractive force so as to allow a relatively high drag vehicle suspension, such as a vehicle sliding on a smooth surface. Further aspects of the invention provide a switching member that is selectively moveable relative to a guideway in order to change a magnetic force acting on the vehicle transverse to a direction of motion of the vehicle.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: March 3, 2015
    Assignee: Magnemotion, Inc.
    Inventors: Nathanael N. King, Brian M. Perreault, Tracy M. Clark, Richard D. Thornton, Jason Young, Michael W. Bottasso
  • Patent number: 8794158
    Abstract: A magnetic levitation vehicle is described, which comprises a car body (2), being mounted by means of pneumatic air springs (4) on a suspension frame (5), said suspension frame (5) being supported by means of supporting points (5b) on pairs of carrying magnets (35A, 35B). According to the invention a control device (14) is assigned to said pneumatic springs (4) in such a manner that on failure of one of the two carrying magnets (35A, 35B) the pressure in the pneumatic springs (4) can automatically be reduced to a pre-selected fraction of the nominal air pressure (FIG. 3).
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: August 5, 2014
    Assignee: ThyssenKrupp Transrapid Gmbh
    Inventors: Olaf Huber, Siegbert Kunz
  • Patent number: 8683926
    Abstract: Systems and methods of transporting containers are disclosed. In one embodiment, an apparatus for transporting shipping containers is provided. The apparatus is configured to move along rails of a railroad track. The apparatus comprises a coupling configured to couple with a trailer configured to transport shipping containers. The coupling is attached to a source of magnetic flux. The source of magnetic flux is positioned so as to be driven by a source of varying magnetic flux positioned along the railroad track. In one embodiment, the source of magnetic flux comprises one or more permanent magnets and the source of varying magnetic flux comprises at least one electromagnet.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: April 1, 2014
    Inventors: Sandor Wayne Shapery, Raymond William Holdsworth, Jr.
  • Patent number: 8616134
    Abstract: Aspects of the invention provide a transport system powered by short block Linear Synchronous Motors (LSMs). The use of short blocks allows vehicles to move under precise control even when they are in close proximity to each other. The design allows the vehicles to be propelled and guided while negotiating sharp turns and negotiating merge and diverge switches. A coreless LSM can be used to create propulsive force without attractive force so as to allow a relatively high drag vehicle suspension, such as a vehicle sliding on a smooth surface.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: December 31, 2013
    Assignee: Magnemotion, Inc.
    Inventors: Nathanael N. King, Brian M. Perreault, Tracy M. Clark, Richard D. Thornton, Jason Young, Michael W. Bottasso
  • Patent number: 8578860
    Abstract: Inductrack III configurations are suited for use in transporting heavy freight loads. Inductrack III addresses a problem associated with the cantilevered track of the Inductrack II configuration. The use of a cantilevered track could present mechanical design problems in attempting to achieve a strong enough track system such that it would be capable of supporting very heavy loads. In Inductrack III, the levitating portion of the track can be supported uniformly from below, as the levitating Halbach array used on the moving vehicle is a single-sided one, thus does not require the cantilevered track as employed in Inductrack II.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: November 12, 2013
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Richard F. Post
  • Patent number: 8528486
    Abstract: A dynamic magnetic suspension propeller includes an separate body electromotor and an external force to reversely rotate the separate body electromotor. The separate body electromotor includes a stator and a rotor mounted separately, wherein the stator includes a single layer plane magnetic path having magnetism, the rotor includes a cantilever electromagnet having a first pole provided at an end portion of the cantilever and a second pole provided at a rotating shaft close to the cantilever, wherein the electromagnet is reversely rotated by the external force around the rotating shaft with respect to the stator, so as to produce a countertorque with respect to an magnetic force of the stator, wherein the countertorque includes a magnetic suspension force and a magnetic propelling force.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: September 10, 2013
    Assignee: China Sight Corporation Limited
    Inventor: Kwang Hwee Lee
  • Patent number: 8499697
    Abstract: A system and method are provided for determining the position of a vehicle on a guideway. For operation, the vehicle includes a magnet system having a wavelength “?”. Further, the guideway includes a propulsion winding for carrying a propulsion current. Structurally, the propulsion winding includes a series of sections, with each section having a wavelength “?”. Further, the propulsion winding includes “N” coils linearly aligned along the guideway, with a phase difference of “?/N” between adjacent coils. Importantly, a transmitter is located on the vehicle for emitting a position current that interacts with the propulsion winding to produce a signal in each coil. Also, the system includes a trap connected to each coil for receiving each respective signal, and a processor for resolving the respective signals to determine the position of the vehicle on the guideway.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: August 6, 2013
    Assignee: General Atomics
    Inventors: Bogdan S. Borowy, Husam Gurol
  • Patent number: 8453580
    Abstract: A method and system for magnetically levitating a load is disclosed. One embodiment of the invention is a system for magnetically levitating a load, the system comprising at least two lift generators, each comprising a source of magnetic flux configured to induce a magnetic flux in a rail via a leg on either side of the rail, at least one magnetically permeable beam connecting the lift generators, and control circuitry configured to generate and modulate a magnetic current flux through the crossbeam so as to maintain gaps between the legs and rail, wherein the gaps defined by the legs on either side of the rail are of unequal size.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: June 4, 2013
    Assignees: Sandor Wayne Shapery, Philip Albert Studer
    Inventor: Philip Albert Studer
  • Patent number: 8430039
    Abstract: The invention relates to a magnetic levitation vehicle (11) and to a method for lifting said magnetic levitation vehicle (11) and to lowering said magnetic levitation vehicle onto a roadway. According to the invention, the carrier magnetic units (38) of the magnetic levitation vehicle (11) are not all activated or deactivated at the same time but at different times in order to keep the current energy requirement from an external energy supply or main power supply to a minimum.
    Type: Grant
    Filed: September 1, 2008
    Date of Patent: April 30, 2013
    Assignee: ThyssenKrupp Transrapid GmbH
    Inventors: Qinghua Zheng, Peter Becker
  • Patent number: 8391936
    Abstract: A magnetic levitation device includes at least two superconductor molded bodies with stored magnetic field configurations above a magnetic guide track. The at least two superconductor molded bodies have at least one of a stored magnetic field configuration with different vertical spacing from the guide track and a stored magnetic field configuration with different horizontal position with respect to the guide track. The at least two superconductor molded bodies are mechanically held in a position deviating from their stored position above the guide track and connected to one another. This abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: January 29, 2006
    Date of Patent: March 5, 2013
    Assignee: Leibniz-Institut Fuer Festkoerper-und Werkstoffforschung Dresden E.V.
    Inventors: Christoph Beyer, Oliver De Haas, Torsten Riederich, Ludwig Schultz
  • Patent number: 8333156
    Abstract: A method provides for the traction control of a maglev car on a maglev track. A levitation magnetic field is produced by supplying a levitation magnetic flux on the car side to at least two levitation magnets to produce a defined air gap between the maglev car and a reaction rail on the track side. A stator current is supplied to the stator to produce a propulsion force on the maglev track, the propulsion force acts upon the maglev car being determined by the magnetic coupling between the magnetic stator field and the magnetic levitation field. An oscillating movement of the maglev car in relation to the magnetic stator field is dampened by changing the magnetic coupling between the magnetic stator field and the magnetic levitation field on the car side. The levitation magnets are operated on the car side with at least two different individual levitation magnetic fluxes.
    Type: Grant
    Filed: January 21, 2008
    Date of Patent: December 18, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventor: Robert Schmid
  • Patent number: 8297196
    Abstract: An apparatus for transferring substrates includes a carrier to which substrates are loaded, an upper transfer unit transferring the carrier horizontally by applying thrust to the carrier, a lower transfer unit maintaining the lower body of the carrier at the horizontal in a non-contact status, a magnetic levitation module levitating the carrier magnetically, and a lower damper unit maintaining the lower center of gravity of the carrier levitated by the magnetic levitation module.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: October 30, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Yeongjin Yeo, Seungheon Choi, Geejo Lee
  • Patent number: 8234981
    Abstract: A magnetic polar arrangement which is intended for magnetic levitation vehicles is described, the magnetic polar arrangement having at least one magnetic pole (22) with a core (6) which defines a magnetic pole surface (23), and with a winding (5) which is set back with respect to the magnetic pole surface (23) in order to form a free space (24). The magnetic pole (22) is provided with a sensor which contains a sensor head (9a), which is arranged at least partially in the free space (24), and an electronic module (9b). According to the invention the sensor head (9a) is physically separated from the electronic module (9b) and is combined, at least with the core (6), to form a single-piece structural unit which is surrounded by a common anti-corrosion layer (26).
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: August 7, 2012
    Assignee: Thyssenkrupp Transrapid GmbH
    Inventors: Qinghua Zheng, Jürgen Frantzheld, Friedrich Löser
  • Patent number: 8224509
    Abstract: A system for controlling movements of a vehicle along a guideway includes an array of targets that are mounted on the vehicle, and a series of wayside sensors that are mounted on the guideway. A signal processor monitors the passage of targets past appropriate sensors and uses resultant signals to derive parametric values that are characteristic of the vehicle's movements. The parametric values are then coordinated with a controller for the operation of a linear synchronous motor that propels the vehicle.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: July 17, 2012
    Assignee: General Atomics
    Inventors: Philip Lynn Jeter, Karoly Kehrer, Husam Gurol
  • Patent number: 8215238
    Abstract: According to one embodiment, a pair of guideway engagement members having a controller circuit is configured on a transport vehicle that travels over an elongated guideway. The pair of guideway engagement members have a corresponding pair of bearing members that are each disposed on opposing sides of the guideway. The controller circuit receives a measurement indicative of dynamic movement of the transport vehicle from one or more sensors, and adjusts the stiffness of the pair of guideway engagement members according to the measurements received from the sensors.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: July 10, 2012
    Assignee: The Texas A&M University System
    Inventor: Stephen S. Roop
  • Patent number: 8198890
    Abstract: In a method for determining a parameter set describing electric parameters of a route section of a magnetic suspension railway, the route section contains a stator section forming a drive section of the magnetic suspension railway and a route cable connecting the stator section to an associated converter device. In the method, the current and voltage values are measured at the electric connecting point between the route cable and the converter device. The parameters of the parameter set are determined using the measurement values, thus forming the parameter set. Accordingly, the current and voltage values are additionally measured at the electrical connecting point between the route cable and the stator section and the current values at the neutral point side of the stator section, if the stator section is electrically connected to the route cable. The additional measurement values are also considered when determining the parameters.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: June 12, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventor: Rizqa Derfiora
  • Patent number: 8171859
    Abstract: A magnetic levitation vehicle has at least one magnetic arrangement (27). The magnetic arrangement (27) contains a plurality of magnetic poles (27a . . . 27n) which are arranged one behind the other in the direction of travel and comprise windings (33) associated therewith. The magnetic levitation vehicle is also provided with a circuit for supplying the windings (33) with a direct current, said circuit containing switches for selectively switching the magnetic arrangement between a guiding function and/or a braking function.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: May 8, 2012
    Assignee: ThyssenKrupp Transrapid GmbH
    Inventors: Friedrich Löser, Qinghua Zheng
  • Patent number: 8171858
    Abstract: The networked guideway transit system uses materials and methods of constructing guideway elements. The materials and methods are designed to reduce the static weight, cost and physical size of the guideway structure. Installation cost is also significantly reduced by the modular nature of the guideway components, which can be manufactured in a controlled factory environment using mass production methods. As a result, the supporting structure of the guideway can be quickly erected and the modular blocks inserted with simple equipment. In addition, complex alignment procedures are not required. In particular, the guideway component includes motor coils having the shapes and configurations that facilitate the easy insertion of the guideway component without the need for interleaving coils in adjacent guideway components and without creating dead spots in the magnetic fields between guideway components.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: May 8, 2012
    Assignee: Advanced Maglev Systems, LLC
    Inventors: John Lee Wamble, III, Christopher Perkins, John V. Cole, Clark Foster
  • Patent number: 8085037
    Abstract: A method for measuring the pole position of a magnetic levitation vehicle in a magnetic levitation railway, wherein a supporting magnetic field is generated on the maglev vehicle as a result of a supporting magnetic current on the vehicle side being fed to at least one supporting magnet. The voltage in the stator on the track is measured and the pole position angle between a reference axis of the stator and a reference axis of the maglev vehicle is determined. The magnitude of the supporting magnetic current on the vehicle side and thus the supporting magnetic field is temporally modified and a voltage induced in the stator by the temporal modification of the magnitude of the supporting magnetic field is detected. The pole position angle is formed using the measured values for the induced voltage.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: December 27, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventor: Robert Schmid
  • Patent number: 8047138
    Abstract: A self-regulating magneto-dynamic system, utilizing steel core rails and permanent magnets as sources of magnetic field, provided for magnetic levitation, stabilization and propulsion in a high speed ground transportation vehicle moving with high speed without friction along a track having a predetermined trajectory, comprising of a self-regulating magneto-dynamic levitation and stabilizing system (MDLSS) provided for magnetic levitation and stabilization of the vehicle, and a permanent magnet linear synchronous motor (PMLSM) provided for stable propulsion of the vehicle. Both systems are situated on the same vehicle, interacting with each other only through electro-magnetic process, working synchronously, supporting each other's stability and self-regulation, where the stability of the MDLSS affects the functionality of the PMLSM, and the precise work of the PMLSM allows for more optimum design of the MDLSS.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: November 1, 2011
    Inventor: Oleg V. Tozoni
  • Publication number: 20110247519
    Abstract: A method and system for magnetically levitating a load is disclosed. One embodiment of the invention is a system for magnetically levitating a load, the system comprising at least two lift generators, each comprising a source of magnetic flux configured to induce a magnetic flux in a rail via a leg on either side of the rail, at least one magnetically permeable beam connecting the lift generators, and control circuitry configured to generate and modulate a magnetic current flux through the crossbeam so as to maintain gaps between the legs and rail, wherein the gaps defined by the legs on either side of the rail are of unequal size.
    Type: Application
    Filed: June 20, 2011
    Publication date: October 13, 2011
    Inventor: Phillip A. Studer
  • Patent number: 7992278
    Abstract: A method of operating a production line comprises the steps of supporting equipment in the production line on a plurality of crawlers comprising at least one rolling track and a structural support for supporting the equipment. A first plurality of lifting magnets coupled to an interior surface of said at least one rolling track is configured to oppose a second plurality of lifting magnets coupled to an exterior surface of said structure support to lift the structural support, such that the structural support floats between and within said at least one rolling track. The magnetic fields experienced by the first and second plurality of lift magnets are adjusted to translate the at least one rolling track, such that the crawlers move along the production line.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: August 9, 2011
    Assignee: The Boeing Company
    Inventors: Kevin E. McCrary, Arthur C. Day, John Edwards, Richard A. Hawkins, Mark D. Higgins, Philip E. Johnson, John A. Mittleider, James R. Schindler, Michael Strasik
  • Patent number: 7963228
    Abstract: A method and system for magnetically levitating a load is disclosed. One embodiment of the invention is a system for magnetically levitating a load, the system comprising at least two lift generators, each comprising a source of magnetic flux configured to induce a magnetic flux in a rail via a leg on either side of the rail, at least one magnetically permeable beam connecting the lift generators, and control circuitry configured to generate and modulate a magnetic current flux through the crossbeam so as to maintain gaps between the legs and rail, wherein the gaps defined by the legs on either side of the rail are of unequal size.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: June 21, 2011
    Inventor: Philip A Studer
  • Patent number: 7954434
    Abstract: An apparatus for transferring substrates includes a carrier to which substrates are loaded, an upper transfer unit transferring the carrier horizontally by applying thrust to the carrier, a lower transfer unit maintaining the lower body of the carrier at the horizontal in a non-contact status, a magnetic levitation module levitating the carrier magnetically, and a lower damper unit maintaining the lower center of gravity of the carrier levitated by the magnetic levitation module.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: June 7, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Yeongjin Yeo, Seungheon Choi, Geejo Lee
  • Patent number: 7942099
    Abstract: Disclosed is a static bearing conveying apparatus having magnetically preloading and motional error correcting functions. The apparatus comprises a guide having a guide surface formed on one side of the guide facing a table, magnetic preload units provided between the guide and the table to generate preload, and a motional error correcting control unit comprising a controller to control the magnetic preload units and a power amplifier to apply electric current according to a control signal from the controller. Each of the magnetic preload units comprises a permanent magnet, a core collinear with magnetic fluxes from the permanent magnet, an electromagnetic coil wound around the core, and a fixing bracket having the permanent magnet supported by the table. The apparatus is simplified in structure of the table and the overall guide, and reduces motional errors of the guide by correcting errors of a floating gap of the static bearings.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: May 17, 2011
    Assignee: Korea Institute of Machinery & Materials
    Inventors: Seung-kook Ro, Chun-hong Park
  • Publication number: 20110100251
    Abstract: The invention relates to a magnetic levitation vehicle (11) and to a method for lifting said magnetic levitation vehicle (11) and to lowering said magnetic levitation vehicle onto a roadway. According to the invention, the carrier magnetic units (38) of the magnetic levitation vehicle (11) are not all activated or deactivated at the same time but at different times in order to keep the current energy requirement from an external energy supply or main power supply to a minimum.
    Type: Application
    Filed: September 1, 2008
    Publication date: May 5, 2011
    Inventors: Qinghua Zheng, Peter Becker
  • Publication number: 20110041722
    Abstract: The invention relates to a magnetic levitation vehicle comprising a body (2) mounted on a levitation chassis (5) by means of pneumatic springs (4), said levitation chassis being supported, in turn, on pairs of levitation magnets (35A, 35B) by means of adjacent supporting points (5b). According to the invention, control devices (14) are associated with the pneumatic springs (4) in such a way that the air pressure of the springs can be automatically reduced to a pre-selected fraction of the nominal air pressure if one of the two levitation magnets (e.g. 35A) fails.
    Type: Application
    Filed: March 10, 2005
    Publication date: February 24, 2011
    Inventors: Olaf Huber, Siegbert Kunz
  • Patent number: 7836829
    Abstract: The invention relates to a rail-bound vehicle for an amusement park ride. The vehicle has an upper part 10 with vehicle seats 12, as well as a carriage 20 whose running wheels 22 and lateral wheels 23 run on rail-tubes, as do its lift-off rollers 24. The upper part 10 can rotate freely around a vertical axis 16 relative to the carriage 20. A brake disk 14? made of a metallic material is provided on the underside of the upper part 10. Permanent magnets 31 connected to the rail system are assigned to this brake disk 14?. The brake disk 14, upon passing these permanent magnets 31, enters the latter's magnet field, with the result that the upper part 10 of the vehicle is braked and set into rotational motion due to the continued linear movement of the carriage 20.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: November 23, 2010
    Assignee: Mack Rides GmbH & Co. KG
    Inventor: Günter Burger
  • Patent number: 7814840
    Abstract: A magnet arrangement for a magnetic levitation vehicle is described. The magnet arrangement comprises a plurality of magnet poles (11) being combined to form groups (11a to 11f), wherein according to the invention each group contains one magnet pole (11a to 11f) or two magnet poles (11a to 11f). The windings (12a to 12f) of each group are controlled by a control circuit (18) individually assigned to it (FIG. 8).
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: October 19, 2010
    Assignee: ThyssenKrupp Transrapid GmbH
    Inventors: Peter Becker, Quinghua Zheng, Siegfried Ellmann, Friedrich Loeser
  • Publication number: 20100236445
    Abstract: Aspects of the invention provide a transport system powered by short block Linear Synchronous Motors (LSMs). The use of short blocks allows vehicles to move under precise control even when they are in close proximity to each other. The design allows the vehicles to be propelled and guided while negotiating sharp turns and negotiating merge and diverge switches. A coreless LSM can be used to create propulsive force without attractive force so as to allow a relatively high drag vehicle suspension, such as a vehicle sliding on a smooth surface. Further aspects of the invention provide a switching member that is selectively moveable relative to a guideway in order to change a magnetic force acting on the vehicle transverse to a direction of motion of the vehicle.
    Type: Application
    Filed: January 22, 2010
    Publication date: September 23, 2010
    Applicant: MAGNEMOTION, INC.
    Inventors: Nathanael N. King, Brian M. Perreault, Tracy M. Clark, Richard D. Thornton, Jason Young, Michael W. Bottasso
  • Publication number: 20100235090
    Abstract: A system and method are provided for determining the position of a vehicle on a guideway. For operation, the vehicle carries a magnetic array having a wavelength “?”. Further, the guideway includes a propulsion winding for carrying a propulsion current. Also, the guideway is provided with a position winding that has the same wavelength “?” and includes two helical wires that are displaced from each other by “?/4”. Importantly, a transmitter is located on the vehicle for emitting a position current that interacts with the position winding to generate a return signal from each helical wire. Also, the system includes a processor for receiving and evaluating the return signals to determine the position of the vehicle on the guideway. As a result, the determined position is used to maximize the interaction of the propulsion current with the magnetic array for propulsion of the vehicle.
    Type: Application
    Filed: March 13, 2009
    Publication date: September 16, 2010
    Inventor: Bogdan S. Borowy
  • Publication number: 20100212537
    Abstract: A system and method are provided for determining the position of a vehicle on a guideway. For operation, the vehicle includes a magnet system having a wavelength “?”. Further, the guideway includes a propulsion winding for carrying a propulsion current. Structurally, the propulsion winding includes a series of sections, with each section having a wavelength “?”. Further, the propulsion winding includes “N” coils linearly aligned along the guideway, with a phase difference of “?/N” between adjacent coils. Importantly, a transmitter is located on the vehicle for emitting a position current that interacts with the propulsion winding to produce a signal in each coil. Also, the system includes a trap connected to each coil for receiving each respective signal, and a processor for resolving the respective signals to determine the position of the vehicle on the guideway.
    Type: Application
    Filed: February 20, 2009
    Publication date: August 26, 2010
    Inventors: Bogdan S. Borowy, Husam Gurol
  • Patent number: 7747367
    Abstract: A vehicle physical quantity estimating device including: a longitudinal vehicle body velocity estimating unit, estimating a longitudinal vehicle body velocity based on vehicle wheel velocities of each wheel; a longitudinal/lateral acceleration state value deviation computing unit, computing deviations in longitudinal and lateral acceleration state values based on output sensor signals corresponding to detected values of the vehicle motions of triaxial accelerations and triaxial angular velocities output from a sensor, and the estimated longitudinal vehicle body velocity; a low pass filter, letting only signals corresponding to motions that need attention pass through from the longitudinal/lateral acceleration state value deviation computing unit 14; and an attitude angle estimating unit, estimating the attitude angle based on the sensor signal(s), and signal(s) representing the deviations in longitudinal and lateral acceleration state values after low pass filter processing.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: June 29, 2010
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventor: Eiichi Ono
  • Patent number: 7737686
    Abstract: A distance sensor configuration for a magnet of the levitation magnet of a magnetic levitation transport system equipped with a number of distance sensors. Each distance sensor has a distance measuring coil acted upon by an operating frequency and can be placed in an installation space on the magnet. In order to obtain reliable distance measurement values by using a distance sensor configuration of the aforementioned type, the distance measuring coil of each distance sensor is connected to a programmable module for generating an operating frequency. The distance sensor contains a location information querying device for querying an installation space-specific location information providing device in the installation space. The location information querying device is connected on the input side to the programmable module.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: June 15, 2010
    Assignee: Siemens AG
    Inventors: Robert Schmid, Benno Weis
  • Patent number: 7694632
    Abstract: A magnet arrangement (10) for a magnetic levitation vehicle (1) is described. The magnet arrangement comprises at least one magnetic pole (11) consisting of a core (14) and a winding (12) applied to the core, a control circuit connected to the winding (12) and a power supply unit for supplying at least the electrical energy required for the control circuit. According to the invention, the magnet arrangement (10) is designed as an autonomous modular unit integrating within itself the magnetic pole (11), the control circuit and the power supply unit (FIG. 5).
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: April 13, 2010
    Assignee: ThyssenKrupp Transrapid GmbH
    Inventors: Siegfried Ellmann, Friedrich Loeser
  • Publication number: 20100071583
    Abstract: Disclosed is a static bearing conveying apparatus having magnetically preloading and motional error correcting functions. The apparatus comprises a guide having a guide surface formed on one side of the guide facing a table, magnetic preload units provided between the guide and the table to generate preload, and a motional error correcting control unit comprising a controller to control the magnetic preload units and a power amplifier to apply electric current according to a control signal from the controller. Each of the magnetic preload units comprises a permanent magnet, a core collinear with magnetic fluxes from the permanent magnet, an electromagnetic coil wound around the core, and a fixing bracket having the permanent magnet supported by the table. The apparatus is simplified in structure of the table and the overall guide, and reduces motional errors of the guide by correcting errors of a floating gap of the static bearings.
    Type: Application
    Filed: August 23, 2005
    Publication date: March 25, 2010
    Applicant: Korea Institute of Machinery & Materials
    Inventors: Seung-kook Ro, Chun-hong Park
  • Publication number: 20100043667
    Abstract: A method is described for operation of a magnetic levitation railway which contains vehicles with a plurality of supporting magnets (20a . . . 20j) and supporting runners (26) associated with them. In the event of a malfunction, the braking of the vehicle with the drive and braking systems switched off is brought about or assisted until a preselected destination stopping point is reached solely in that, even before the destination stopping point is reached, at least one of the supporting magnets (for example 20f, 20g) is switched off, and the magnetic levitation vehicle is placed on the track path (3) by means of the associated supporting runner (26), and is brought to rest at the destination stopping point by making use of the friction forces that occur as a result. The invention also relates to a magnetic levitation vehicle operated in this way.
    Type: Application
    Filed: November 26, 2007
    Publication date: February 25, 2010
    Inventors: Friedrich Löser, Qinghua Zheng
  • Publication number: 20100037796
    Abstract: A magnetic polar arrangement which is intended for magnetic levitation vehicles is described, the magnetic polar arrangement having at least one magnetic pole (22) with a core (6) which defines a magnetic pole surface (23), and with a winding (5) which is set back with respect to the magnetic pole surface (23) in order to form a free space (24). The magnetic pole (22) is provided with a sensor which contains a sensor head (9a), which is arranged at least partially in the free space (24), and an electronic module (9b). According to the invention the sensor head (9a) is physically separated from the electronic module (9b) and is combined, at least with the core (6), to form a single-piece structural unit which is surrounded by a common anti-corrosion layer (26).
    Type: Application
    Filed: August 13, 2007
    Publication date: February 18, 2010
    Inventors: Qinghua Zheng, Jürgen Frantzheld, Friedrich Löser
  • Publication number: 20100031847
    Abstract: A maglev vehicle is provided including a nose and/or tail section (1, 1b) containing a plurality of guidance magnets (FM1 to FM6) which are formed of cores (15) and windings (24) wound onto said cores and connected to control circuits (17). The guidance magnets (e.g. FM1 to FM3) are provided with an at least partially higher number of windings (24) in a front zone of the nose section (1) in relation to the direction of travel (v) or in the rear zone of the tail section (1b) in relation to the direction of travel (v).
    Type: Application
    Filed: August 7, 2007
    Publication date: February 11, 2010
    Inventors: Wolfgang Hahn, Harald Pfannkuch
  • Patent number: 7637214
    Abstract: A method and a magnetic levitation vehicle operating with this method are described. For the control of support gaps (10a, 10b) that are formed during operation of the magnetic levitation vehicle (1) between a track (2, 3, 4) and a number of carrying magnets (6a, 6b) fastened to said magnetic levitation vehicle (1) and provided with windings (16a, 16b), wherein at least two carrying magnets (6a, 6b) in adjacent positions act upon a suspension frame (8) of said magnetic levitation vehicle (1), the electrical currents flowing through the windings (16a, 16b) are so controlled that the support gaps (10a, 10b) between these two carrying magnets (6a, 6b) and the track (2, 3, 4) adopt pre-determined nominal values (na, nb).
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: December 29, 2009
    Assignee: ThyssenKrupp Transrapid GmbH
    Inventors: Thomas Beck, Siegfried Ellmann, Olaf Huber
  • Publication number: 20090283008
    Abstract: A method for measuring the gap between a levitation magnet of a vehicle of a magnetic levitation railway and a fixed reaction rail of the magnetic levitation railway and for generating a gap measured value which specifies the size of the gap. In order to form the gap measured value, the magnetic field, which is generated by the levitation magnet, or at least a measured variable associated with the field is evaluated.
    Type: Application
    Filed: September 12, 2006
    Publication date: November 19, 2009
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Robert Schmid
  • Patent number: 7587982
    Abstract: A magnetic levitation guideway-train system is provided. The levitation power chambers located at a lower portion of the train are fitted in the grooved guideway, and the side permanent magnets of the levitation power chambers and the ferromagnetic balance levitation tracks correspond to one another so as to generate upward or downward balance attractive force for the train. Wing permanent magnets at the bottom of the levitation power chamber and the permanent magnet tracks correspond to one another so that the identical poles of the wing permanent magnets and the permanent magnet tracks repel one another to provide the train with an upward repulsion levitation force.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: September 15, 2009
    Inventor: Lingqun Li
  • Patent number: 7533616
    Abstract: A guiding magnet system for a magnetic levitation vehicle is described. The guiding magnet system has a plurality of magnet arrangements (50, 51, 57) which each comprise a core (33) extending in the vehicle's longitudinal direction and have at least two winding levels (planes). In each winding plane an even number of windings (58, 60 or 59, 62) is provided. At one end of the magnet arrangements (50, 51, 57) two windings (e.g. 58a, 58b) each lying one behind the other but diagonally above each other and being connected in series, form a pair of windings linked to an assigned control circuit. At the other end of said magnet arrangement either also two such winding pairs or single winding pairs are provided which comprise two windings (60a, 60b or 61a, 61b) arranged one behind the other. Further, a magnetic levitation vehicle equipped with such a guiding magnet system is described (FIG. 10).
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: May 19, 2009
    Assignee: ThyssenKrupp Transrapid GmbH
    Inventors: Wolfgang Hahn, Friedrich Loeser
  • Patent number: 7484463
    Abstract: A permanent magnetic levitation apparatus comprises a permanent magnetic track unit and permanent magnetic levitation wing unit provided on a magnetic levitation vehicle and levitated above the track unit, in which the wing unit includes a ferromagnetic wing trough having an open bottom, wing permanent magnets disposed in the wing trough, and non-ferromagnetic spacers which are disposed between the side walls of the wing trough and the wing permanent magnets, and the track unit includes a ferromagnetic track trough having an open top, track permanent magnets disposed in the track trough, and non-ferromagnetic spacers disposed between the side walls of the track trough and the track permanent magnets, so that the wing permanent magnets and the track permanent magnets are disposed so that their poles with the same polarity face each other.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: February 3, 2009
    Inventor: Lingqun Li
  • Patent number: 7484462
    Abstract: A permanent magnetic levitation apparatus comprises a permanent magnetic track unit and permanent magnetic levitation wing unit provided on a magnetic levitation vehicle and levitated above the track unit, in which the wing unit includes a ferromagnetic wing trough having an open bottom, a wing permanent magnet disposed in the wing trough, and non-ferromagnetic spacers which are disposed between the side walls of the wing trough and the wing permanent magnet, and the track unit includes a ferromagnetic track trough having an open top, a track permanent magnet disposed in the track trough, and non-ferromagnetic spacers disposed between the side walls of the track trough and the track permanent magnet, so that the wing permanent magnet and the track permanent magnet are disposed so that their poles with the same polarities face each other.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: February 3, 2009
    Inventor: Lingqun Li
  • Patent number: 7472786
    Abstract: A non-contact conveying device (10) using superconducting magnetic levitation capable of stably conveying an object (11), including: a conveying table (12) having a bottom with permanent magnets (16-19) to convey the object (11); a conveying guide unit (13) having superconductors (20) immediately below the respective magnets (16-19); distance sensors (21) on the conveying guide unit (13) for detecting a distance between the conveying table (12) and the conveying guide unit (13); damping coils (25) in the conveying guide unit (13) for generating a magnetic field upon energization thereof to damp vibration of the conveying table (12); and a control device (27) for detecting vibration of the conveying table (12) by signals from the distance sensors (21) and for controlling current applied to the damping coils (25). If disturbance occurs on the object (11) conveyed contactlessly by the superconducting magnetic levitation, the vibration is stopped within a short period of time.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: January 6, 2009
    Assignee: Kyushu Institute of Technology
    Inventor: Mochimitsu Komori