Institut National De Recherche Sur Les Transports Et Leur Securite

Alsthom

Other

Lohr Industrie

Regie Autonome Des Transports Parisiens

Matra Transport

Alshtom

Instit National De Recherche Sur Les Transports Et Leur Securite

Marine and Petroleum Equipment

Jean-Louis Maupu

Hugues Chollet

Jean-Michel Petit

Jean-Luc Andre

Jean-Pierre Pascal

Denis Duhot

Joel Chardonneau

Regis Kirat

Didier Ganter

Paul Champs

Patrice Aknin

Jean-Bernard Ayasse

Pierre Caroff

The flanged type guide wheel () or () has a peripheral edge () which has within its profile a recess (), for example, a notch, the shape and position of which maintain the surface cover () of the guide wheel at a distance from the travel surface () or () that exists opposite it on the guide rail () when there is lateral force on the guide wheel. This invention has applications for guide assemblies for road vehicles used on guide rails.

Guide assembly for guide rail comprising pair of angled guide wheels

The present invention relates to a control method and control apparatus for controlling actuator apparatus implemented in active suspension apparatus for vehicles, in particular rail vehicles, said control method and said control apparatus being characterized in that they use the articulated architecture of the train to derive the local curvature of the track in real time, in which control method and control apparatus the control signal transmitted by said control apparatus to the actuator apparatus of the bogie of order n in the articulated train is a function of measurements of at least one deflection angle &agr; at an articulation center situated between adjacent carriages and of the position offset h of said articulation center relative to the track.

Device and method for controlling actuating devices for the active suspension of vehicles, in particular trains

Vertically reciprocating constant power drive unit for raising a load

The invention relates to a vehicle having steerable axles. A track guide icle comprises at least one pair of independent wheel axles, and at least two members (14, 15) for measuring the transverse position of the vehicle relative to the track, and it is characterized in that it includes at least one measuring member (20) for measuring the angle of the axles relative to references related to portions of the vehicle, and at least two actuator members (21) for correcting said angles by bearing against said axles, and a servo-control circuit receiving the signals from said measuring members and generating control signals for said actuator members.

Vehicle with steerable axles

A position sensor for measuring the separation, in a givne direction (Oy), between a first part such as a datum element of a railway vehicle axle and a fixed second part such as a rail on which said axles runs, includes magnets (11, 12) for producing a magnetic field above the second part (10) and Hall effect probes (15) for measuring the value of the component of the field in said given direction (Oy) with variation in that value being proportional to the separation.

Hall effect position sensor for a railway vehicle axle

An orientable axle with independent wheels comprises a beam perpendicular the axis of the wheels. It also comprises sensors (16, 20) for measuring the position of the beam with respect to the track; a reference position with respect to the track is predetermined. Electromagnets (22) carried by the axle cooperate with the track for exerting on the axle a force for orientating it. A control circuit delivers a current to the electromagnets for moving the axle in an angular direction which tends to cancel out the difference between the measured position and the reference position. The axle can be used on railroad vehicles having to negociate curves at high speeds.

Axle with magnetic guidance for railroad vehicles

Apparatus including a magnet (10) having at least one degree of freedom w respect to a first member, tangent to the direction of measurement and cooperating with a magnetic portion associated with a second member, and a sensor (11) for picking up the position of the magnet relative to the first member. Such apparatus is employed in steerable railway vehicles.

Device for determining position of a railway vehicle by measuring

Growing community of inventors

Villejuif, France

Jean-Louis Maupu