Driving assistance method and device

An assisting device for assisting with driving an automotive vehicle, said automotive vehicle including at least one illuminating device to emit a beam for illuminating a road scene in front of said automotive vehicle, the assisting device comprising:

• a variable transmission screen that is placed between said road scene and a driver of said automotive vehicle, the assisting device being configured to, when active, control a light emission of at least one light source of said at least one illuminating device and a transmission coefficient of said variable transmission screen, in relation to each other, with a pulsed signal, wherein the assisting device is configured to detect a vehicle equipped with another assisting device of a same type to the assisting device via inter-vehicle communication and to modify said pulsed signal to avoid antiphase and/or phase effects, when the assisting device detects such a vehicle, and the assisting device is configured to emit a recognition signal via the inter-vehicle communication when the vehicle equipped with the another assisting device of the same type, known as a detected vehicle, is detected.