Method and device for daytime motor vehicle driving assistance

The invention relates to a method that provides daytime driving assistance for a motor vehicle (20). The method comprises the following steps of: placing at least one variable transmission screen (26, E, 28) between the driver (24) of the vehicle and the road scene (SR) in front of the vehicle (20); measuring, with at least one sensor (31), the brightness of the road scene (SR) in front of the vehicle; and processing the brightness measurement signal (SL) in order to transform same into a control signal (SC) for controlling the transmission coefficient of the variable transmission screen (26, E, 28). According to the method, the method comprises the additional step of transmitting the control signal (SC) via remote control waves (OT) to a receiver (40) belonging to the variable transmission screen (26, E, 28) in order to modulate the transmission coefficient (CT) of the variable transmission screen (26, E, 28) as a function of the brightness measured by the sensor (31). The method is suitable for motor vehicles.