Advanced emergency braking controller design for pedestrian protection oriented automotive collision avoidance system

Area of Science:

• Automotive Engineering
• Control Systems
• Road Safety

Background:

• Automotive collision avoidance systems enhance vehicle safety but often neglect pedestrian protection.
• Vulnerable road users, including pedestrians, require integrated safety measures in advanced driver-assistance systems.

Purpose of the Study:

• To develop and evaluate an advanced emergency braking control system that accounts for both vehicles and pedestrians.
• To improve active safety by addressing the limitations of current systems in protecting vulnerable road users.

Main Methods:

• A vehicle longitudinal dynamics model was established in CarSim to simulate real-world driving conditions.
• A two-layer braking controller combining sliding mode control and single neuron PID control was designed.
• Cosimulations using CarSim and Simulink were performed on an intelligent vehicle model.

Main Results:

• The designed controller demonstrated effective response in preventing collisions with front vehicles and pedestrians.
• Safety situations were assessed by comparing vehicle distance to critical braking distance under various scenarios.
• The controller effectively managed nonlinear, time-varying vehicle dynamics during deceleration and emergency braking.

Conclusions:

• The proposed advanced emergency braking system enhances vehicle safety by integrating pedestrian protection.
• The developed controller shows significant potential for reducing road accidents involving vehicles and pedestrians.
• The study highlights the importance of considering all road users for comprehensive transportation safety.