Method of guiding a vehicle

Details Method of guiding a vehicle Method of guiding a vehicle

G - Physics

05

D

G05D 1/02 (2006.01)

Patent

CA 2729204

The invention relates to a method of guiding a vehicle (1) comprising the following steps: exciting, during the displacement of the vehicle (1), at least one guidance element (4) made of a high-permeability magnetic material affixed to a support, such as a road (3), by way of excitation means (5); detecting the signal emanating from the guidance element (4) following the excitation by way of detection means (6, 7); gathering and processing the signal arising from the detection means (6, 7) so as to guide the vehicle (1). The excitation of the guidance element (4) is carried out in such a way as to saturate or modify the operating point of the guidance element (4) in its operating cycle, which then emits a frequency-rich signal, composed of a wave of fundamental frequency (fo) as well as waves of frequencies (nf0) which are multiplies of the value of the fundamental frequency, and called the harmonics, and in that the excitation is carried out way of a plurality of coils or of a radar generating a rotating excitation magnetic field.

L'invention concerne un procédé de guidage d'un véhicule (1) comportant les étapes suivantes exciter, lors du déplacement du véhicule (1), au moins un élément de guidage (4) en matériau magnétique à haute perméabilité apposé sur un support, tel qu'une route (3), par l'intermédiaire de moyens d'excitation (5), détecter le signal issu de l'élément de guidage (4) suite à l'excitation par l'intermédiaire de moyens de détection (6, 7), recueillir et traiter le signal issu des moyens de détection (6, 7) afin de guider le véhicule (1) L'excitation de l'élément de guidage (4) est réalisée de manière à saturer ou modifier le point de fonctionnement de l'élément de guidage (4) dans son cycle de fonctionnement, qui émet alors un signal riche en fréquences, composé d'une onde de fréquence fondamentale (f.) ainsi que d'ondes de fréquences (n f o) multiples de la valeur de la fréquence fondamentale, appelées harmoniques et en ce que l'excitation est réalisée par l'intermédiaire d'une pluralité de bobines ou d'un radar générant un champ magnétique d'excitation tournant

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