Method for determining the location of a railway vehicle and associated system

    公开(公告)号:US10661817B2

    公开(公告)日:2020-05-26

    申请号:US15910284

    申请日:2018-03-02

    Abstract: The invention concerns a method for determining the location of a railway vehicle comprising a first navigation module determining a regular resolution position of the railway vehicle with a first accuracy measurement and a second navigation module determining a high resolution position of the railway vehicle with a second accuracy measurement, using the received signals. The method comprises the steps of determining a first confidence area around the regular resolution position, based on the first accuracy measurement, of determining a second confidence area around the high precision position, based on the second accuracy measurement, and of assigning a weight of confidence to the knowing of the actual location of the railway vehicle, by analyzing the overlay of the first and the second confidence areas and the first and the second accuracy measurements.

    Method for determining the operating point of a hydraulic machine and installation for converting hydraulic energy

    公开(公告)号:US10598145B2

    公开(公告)日:2020-03-24

    申请号:US15511351

    申请日:2015-08-18

    Abstract: This method allows determining the operating point of a hydraulic machine in a considered operating range, such as turbine mode, and comprises steps that consist in a) determining two coordinates (N′11, T′11) of a first series of potential operating points of the hydraulic machine for the orientation affected to guide vanes of the machine, b) measuring the rotation speed of the machine, and c) determining the torque exerted by water flow on the machine. The method further includes steps consisting in d) calculating two coordinates (N11, T11) of a second series of potential operating points of the machine in function of the rotation speed (N) measured at step b) and the torque determined at step c), and e) deducing the two coordinates (N11_real, T11_real) of operating point that belongs both to the first and the second series in the said considered operating range of the machine.

    Method for controlling a level crossing and railway installation for implementing such method

    公开(公告)号:US10562555B2

    公开(公告)日:2020-02-18

    申请号:US15466134

    申请日:2017-03-22

    Abstract: Controlling a level crossing of a railway track by providing a train having an onboard processor communicating with a wayside processor associated to a level crossing, said train having a forward end and a rear end; moving the train forward along the railway track lowering down gates of the level crossing when train is at a predetermined distance upon detection of the train approaching the level crossing; when the forward end passes over a first reference point defining the beginning of an island area of the level crossing, sending a first message from the onboard safety processor towards the wayside processor informing that the train is approaching the level crossing; maintaining down gates; when the rear end passes over a second reference point defining the end of the island area, sending a second message from the onboard safety processor to the wayside processor informing that the train has left the level crossing; and lifting the gates.

    VEHICLE HEIGHT CONTROL METHOD AND ASSOCIATED VEHICLE

    公开(公告)号:US20200047774A1

    公开(公告)日:2020-02-13

    申请号:US16535633

    申请日:2019-08-08

    Abstract: A method controls the height of a floor of a car of a vehicle relative to a platform. The car includes a body provided with a distance sensor, at least one bogie and at least one secondary suspension between the bogie and the body. The method includes measuring the distance between the distance sensor and the platform via the distance sensor, calculating the difference between the height of the platform and the height of the floor from the measured distance, and adjusting the height of the secondary suspension based on the difference.

    TENSIONING DEVICE WITHOUT COUNTERWEIGHTS, FOR APPLYING A TENSION ON A CABLE OF A RAILWAY LINE

    公开(公告)号:US20200040965A1

    公开(公告)日:2020-02-06

    申请号:US16530883

    申请日:2019-08-02

    Abstract: A tensioning device includes a circular spring, and a pulley rotatably connected to the circular spring. The pulley includes a circumferential groove, which has a V-shaped cross-section defined by two lateral converging walls. The pulley also includes a flexible rope having a variable cross section, extending between a first end connected to the pulley and a second end intended to be connected to the cable. The pulley is rotatably movable around an axis, between a first position in which the flexible rope is arranged in the circumferential groove around the axis, and a second position in which the flexible rope is unwound.

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