Variable speed warning device

B - Operations – Transporting – 60 – Q

Patent

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Details

B60Q 1/26 (2006.01) B60Q 1/44 (2006.01)

Patent

CA 2197300

Method and apparatus for increasing the effectiveness of emergency signalling devices on vehicles. An emergency signalling device such as a flashing light is repeatedly operated at a frequency rate that corresponds to the speed of the vehicle. A minimum repetition rate is employed when the vehicle is slow or stopped so that the signal is not similarly halted, and a maximum rate is employed above a certain speed so that the repetition rate is not at too high of a frequency to be perceived.

Procédé et dispositif permettant d'accroître l'efficacité des dispositifs d'alerte équipant les véhicules. Un dispositif d'alerte, tel qu'un feu à éclats, est actionné selon un mode répétitif, à une fréquence correspondant à la vitesse du véhicule. Une cadence de répétition minimale est utilisée lorsque le véhicule se déplace lentement ou se trouve à l'arrêt, le signal ne devenant jamais fixe, et une cadence maximale est utilisée lorsque la vitesse de déplacement du véhicule dépasse une certaine valeur, de sorte que cette cadence de répétition n'atteint jamais une fréquence trop élevée pour être perçue.

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