Method for secure display of information in a vehicle

1 . A method for securely displaying information in a vehicle fitted with a driving assistance system, the method comprising: detecting an infrastructure element; transmitting data relating to the infrastructure element to the vehicle and displaying information relating to driving events on a display module of the driving assistance system as a function of said transmitted data; locating the vehicle relative to the infrastructure element; estimating, in real time, a time remaining for the vehicle to reach the infrastructure element taking into account a longitudinal speed of the vehicle; securing the display of information, the securing comprising checking an alertness of a driver of the vehicle by a driver state monitoring unit in response to the remaining time separating the vehicle from the infrastructure element is equal to a predetermined limit time separating the vehicle from the infrastructure element; switching off the displaying information on the display module and the securing is triggered when the remaining time separating the vehicle from the infrastructure element is equal to the predetermined limit time separating the vehicle from the infrastructure element and the driver state monitoring unit determines that the driver is alert; and maintaining the display information on the display module when the driver state monitoring unit determines that the driver is not alert; wherein the securing is implemented such that the display information is only switched off when the speed of the vehicle is greater than or equal to a predetermined speed, the displaying information on the display module remaining switched off until the time remaining for the vehicle to reach the infrastructure element is zero or the data relating to the infrastructure element indicates that the vehicle has passed the infrastructure element such that the displaying information on the display module is switched back on when the vehicle reaches the infrastructure element, wherein the display information remains switched on when the speed of the vehicle less than the predetermined speed; and updating a status of the infrastructure element including alerting of an imminent change of status of the infrastructure element from a first status to a second status via a first alert signal comprising a first light signal and/or sound signal and/or haptic signal.

2 . The method as claimed in claim 1 , wherein the infrastructure element is a connected traffic light.

3 . The method as claimed in claim 1 , wherein the checking the alertness of the driver comprises a phase of monitoring at least one physiological parameter of the driver by at least the driver monitoring unit.

4 . The method as claimed in claim 3 , wherein the securing the display of information comprises issuing a second alert signal to the driver of the vehicle when a value of the at least one physiological parameter is outside a predetermined threshold value, the second alert signal comprising a second light signal and/or sound signal and/or haptic signal.

5 . The method as claimed in claim 1 , wherein the predetermined limit time is 2 to 3 seconds.

6 . The method as claimed in claim 1 , wherein the detecting the infrastructure element comprises selecting the infrastructure element from among a plurality of infrastructure elements according to a position of the infrastructure element relative to a lane and/or roadway traveled by the vehicle and/or according to the spatial and/or temporal proximity of the infrastructure element relative to the vehicle.

7 . The method as claimed in claim 1 , wherein the predetermined speed is 15 km/h.

8 . The method as claimed in claim 1 , wherein the updating the status of the infrastructure element comprises: following the alerting, verifying a behavior of the driver by measuring at least one physiological parameter of the driver by the driver state monitoring unit, and when a value of the at least one physiological parameter is less than or equal to a threshold value, reminding the change of status of the infrastructure element and/or of alertness.

9 . The motor vehicle driving assistance system comprising: hardware elements and/or software elements configured to implement the method as claimed in claim 1 , wherein the hardware elements comprise at least a location means, a means for detecting a connected infrastructure element, a communication module, a data processing unit, the driver state monitoring unit, and the display module of the assistance system.

10 . A non-transitory computer readable medium storing a program that, when executed by a computer, causes the computer to execute the method as claimed in claim 1 .

11 . The method as claimed in claim 1 , wherein the switching off includes switching off all information on the display module.

12 . The method as claimed in claim 1 , wherein the switching off includes switching off all information on the display module related to driving events.

13 . The method as claimed in claim 1 , wherein, after detecting that the driver is not alert, the switching off the displaying information is implemented in response to the driver state monitoring unit determining that a gaze of the driver is on a traffic lane and not the display module.