Importance

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Abstract

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 (f.sub.o) as well as waves of frequencies (nf.sub.0) 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.

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First Claim