Abstract: The assistance device (I) operates in a road mode in which the rear wheels (9) are initially straight and, once the front wheels (II) have turned through a certain steering angle, the rear wheels (9) are controlled to steer proportionately to the steering angle control received by the front wheels (II). This device (I) also operates in a parking mode in which the rear axle (5) steers and in which the steering angle of the rear wheels (9) is controlled via a device (10) for controlling the steering of the rear axle (5). The device then controls the steering of the rear wheels (9), which is dependent on the distance between the vehicle and the platform and other obstacles in the environment. These distances are measured by distance sensors (15, 18, 17, 18).

Abstract: The invention concerns a rail crossing device designed for crossing a first rail embedded in a road surface with a guide rail, embedded in the road surface. It comprises at least one extensible portion provided in the guide rail and at least one mechanism designed for lengthwise extension and contraction of the extensible portion. This mechanism is designed to extend and contract the extensible portion in a lengthwise direction, defining a contracted position in which one end of the guide rail is separated from the first rail to allow a vehicle or any other movable device to travel along this rail, and an extended position in which said end of the guide rail is moved towards the first rail in order to guide a vehicle onto the guide rail.

Abstract: An electrical power supply system with assistance with the making of electrical contact, of a type having a power supply arm mounted on a post positioned alongside the road, entering into electrical contact with a longitudinal conductor rail carried on the vehicle, is characterized in that the arm has—at its end—a means of rolling or sliding that enters into moving contact with an adjacent lane alongside the conductor rail at the beginning of its length. This invention concerns the domain of electrically-propelled vehicles carrying at least one longitudinal power supply rail.

Abstract: A system of dynamic control of rolling on at least one guide rail for a guidance system of a vehicle along at least one guide rail, composed of at least one roller or at least one pair of guide rollers rolling along this guide rail, is characterized in that it incorporates a vibrational sensor located near at least one roller or at least one pair of guide rollers and a proximity sensor, and in that the signals transmitted by these sensors, or the circuits in which they are placed, are continually analyzed to establish a commencement of guidance failure, a guidance failure, a limit of wearing of or damage to the roller(s) or their tires. This invention is of interest to manufacturers of vehicles guided along at least one rail.

Abstract: A system of dynamic control of rolling on at least one guide rail for a guidance system of a vehicle along at least one guide rail, composed of at least one roller or at least one pair of guide rollers rolling along this guide rail, is characterized in that it incorporates a vibrational sensor located near at least one roller or at least one pair of guide rollers and a proximity sensor, and in that the signals transmitted by these sensors, or the circuits in which they are placed, are continually analyzed to establish a commencement of guidance failure, a guidance failure, a limit of wearing of or damage to the roller(s) or their tires. This invention is of interest to manufacturers of vehicles guided along at least one rail.