The Effect of Commercial Vehicle Head-Up Display Reminding System on Driving Safety in Mountainous Area 2017-01-2500
Head-up Display (HUD) system can avoid drivers’ distraction on dashboard and effectively reduce collisions caused by emergency events, which is gradually being realized by researchers around the world. However, the current HUD only displays information like speed, fuel consumption, other information like acceleration and braking can’t be displayed yet. This research will use the indicator symbol‘s color and position change to remind drivers to brake or accelerate. Drivers can do driving operation timely and accurately. The system has the advantages of safety, intuition and real-time. The vehicle safe speed is calculated according to the road parameters, like adhesion coefficient and slope, and vehicle parameters, such as vehicle mass and centroid. Then, the appropriate braking operations are obtained by combining the vehicle driving state. The braking information is corresponded to the color and position change of the indicator symbol to prompt the drivers by the HUD interface. At the same time, under different driving conditions, experiments will be carried out to find out the difference of driver’s braking operations when there is braking information presentation or there is not. The effects of different braking operations on driving safety performance will be evaluated. Compared with the condition of no braking information presentation, braking information presentation can make the start braking time ahead of schedule. In addition, the emergency braking situation will be reduced appropriately. The results show that the braking information presentation based on the HUD system has significant effects on improving driving safety.