DEVICE FOR NIGHTTIME MOTOR VEHICLE DRIVING ASSISTANCE

摘要

A device for assisting the nighttime driving of a motor vehicle fitted with a lighting device for emitting a beam for illuminating the road scene in front of the vehicle, the illumination emitted by the lighting device being variable periodically between a maximum value and a minimum value, the device including at least one variable-transmission screen placed between the road scene and the driver, the coefficient of transmission of the screen being variable periodically between a maximum value and a minimum value, the switching on of at least one light source of the lighting device and the coefficient of transmission of the variable-transmission screen controlled by the control unit, the illumination reaching its maximum value when the coefficient of transmission of the screen reaches its maximum value. The control unit controls a circuit for regulating the power supply and a transmitter of remote control waves toward a receiver.

主权项

1. A device for assisting the nighttime driving of a motor vehicle, the vehicle being fitted with at least one lighting device for emitting a beam for the illumination of the road scene (S) in front of the vehicle in accordance with regulations,
an illumination (E) emitted by said at least one lighting device being variable between a maximum value (EMAX) and a minimum value (Emin); the device including at least one variable-transmission screen (F) placed between the road scene (S) and a driver of the vehicle; a coefficient of transmission (CT) of said at least one variable-transmission screen being variable between a maximum value (CTMAX) and a minimum value (CTmin); a switching on of at least one light source of said at least one lighting device and said coefficient of transmission (CT) of said at least one variable-transmission screen (F) being controlled by a same control unit in synchronization; said illumination (E) reaching its maximum value (EMAX) substantially when said coefficient of transmission (CT) of said at least one variable-transmission screen reaches its maximum value (CTMAX); wherein said control unit controls a circuit for regulating a power supply to said at least one light source of said at least one lighting device and a transmitter of remote control waves (OT) directed toward a receiver.