Automotive Technology : Drowsy driver fatigue detection system

New Automotive Technology: Drowsy driver fatigue detection system

Fatigue and sleepiness while driving often lead to serious accidents. However, in critical situations before they occur, the first signs of driver fatigue can be detected out. Bosch driver fatigue detection system is able to monitor the driver's steering movements to identify the fatigue state, which prompt the driver in a timely manner to rest. Information needed to judge the system by Bosch electronic power steering system or anti-skid Electronic Stability Program ESP ® to provide a steering angle sensor, so the cost advantage enabled applications can further improve road safety. Bosch driver fatigue detection system can be applied to passenger cars and light commercial vehicles, can also be integrated in a variety of vehicle control unit. The system for the first time in 2010 in the public release of the new Passat models to be applied as standard, the latest generation of used Volkswagen Passat Alltrack models.

Numerous studies show that driver fatigue easily lead to accidents. In 2010, the American Automobile Association (AAA) released a security based on U.S. Highway Administration (NHTSA) reports collected accident data analysis shows: 17% of fatal accidents are caused by driver fatigue caused.

Inattention and fatigue seriously affect the driver's driving behavior and reaction speed, resulting in reduced sensitivity action, control accuracy is also reduced, the driver needs to be more frequent minor errors corrected steering operation. The new driver fatigue detection system starts from the driving behavior of the driver's operation when recording, and can travel long distances by identifying changes in the driving operation, the driver to judge the degree of fatigue. Driver's steering operation frequency becomes lower, and is accompanied by a slight but abrupt steering movements to keep the direction of travel is driving energy is not concentrated typical performance. The frequency of operation of the above, and integrated as journey length, the use of turn signals, driving times, and other parameters, the degree of fatigue of the driver is calculated and identification. If the calculation result exceeds a certain value, the instrument panel flashes a coffee cup pattern, suggesting that the driver needs to rest. Driver fatigue detection system will focus on the driver level as a measure of the state of the driver driving an important consideration in an effort to improve road safety.