Vehicle with a safety system involving prediction of driver tiredness
First Claim
1. A driver alertness detection system for a vehicle, the system comprising:
- a tachograph configured to generate a tachograph signal containing information about current clock time and the times of the vehicle'"'"'s movements;
a driver'"'"'s card input unit configured to receive input of a report of a driver'"'"'s recent driving conditions, from a driver'"'"'s card, and to generate a driver'"'"'s report signal containing driving conditions including information about driving and rest times for the driver;
the vehicle further comprises one or more driver support systems;
a driver'"'"'s alertness modelling unit configured to calculate a current tiredness value and predicted tiredness values for the driver over a predetermined future period of time, using an alertness model, based on the tachograph signal and the driver'"'"'s report signal;
a control unit configured to generate control signals to control the one or more driver support systems on the basis of the calculated current and predicted tiredness values; and
the calculated current and predicted tiredness values being conveyed to the control unit,wherein the one or more driver support systems is a driver warning system or a vehicle safety system, andwherein the control unit sets threshold values for the one or more driver support systems so that the higher the tiredness value, the more sensitive a driver support system setting.
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicle (2) has a tachograph (4) which generates a tachograph signal (6) containing information about current clock time and the times of the vehicle'"'"'s movements, a driver'"'"'s report input unit (8) generates a signal (10) containing information about driving and rest times for the driver, including monitoring (12) of driver activity which generates an alertness signal (14) containing information about the driver'"'"'s activity in the vehicle. A safety system (18) has a control unit (20) and an alertness modelling unit (22) which calculates a current and a predicted tiredness values (KSS) for the driver based on the tachograph signal (6) and/or the driver'"'"'s report signal (10). The tiredness values are conveyed to a control unit which determines control signals (24) for the vehicle'"'"'s driver support systems.
-
Citations
22 Claims
-
1. A driver alertness detection system for a vehicle, the system comprising:
-
a tachograph configured to generate a tachograph signal containing information about current clock time and the times of the vehicle'"'"'s movements; a driver'"'"'s card input unit configured to receive input of a report of a driver'"'"'s recent driving conditions, from a driver'"'"'s card, and to generate a driver'"'"'s report signal containing driving conditions including information about driving and rest times for the driver; the vehicle further comprises one or more driver support systems; a driver'"'"'s alertness modelling unit configured to calculate a current tiredness value and predicted tiredness values for the driver over a predetermined future period of time, using an alertness model, based on the tachograph signal and the driver'"'"'s report signal; a control unit configured to generate control signals to control the one or more driver support systems on the basis of the calculated current and predicted tiredness values; and the calculated current and predicted tiredness values being conveyed to the control unit, wherein the one or more driver support systems is a driver warning system or a vehicle safety system, and wherein the control unit sets threshold values for the one or more driver support systems so that the higher the tiredness value, the more sensitive a driver support system setting. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A method for detecting driver alertness in a vehicle, comprising:
-
generating a tachograph signal containing information about current clock time and vehicle movement; generating from a driver'"'"'s input information a driver'"'"'s report signal containing information about driving and rest times for the driver, wherein the vehicle further comprises one or more driver support systems; and calculating, using an alertness model, a current tiredness value and predicted tiredness values for the driver over a predetermined future period of time, based on the tachograph signal and driver'"'"'s report signal; conveying the calculated current and predicted tiredness values to a control unit; determining control signals for the one or more driver support systems on the basis of the calculated current and predicted tiredness values; setting threshold values for the driver support systems so that the higher the tiredness value, the more sensitive driver support system settings; operating the one or more driver support systems based on a control signal; wherein the one or more driver support systems is either a driver warning system or a vehicle safety system. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
-
Specification