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An Improved Rear-End Collision Avoidance Algorithm Based on Professional Driver Emergency Braking Behavior
Journal Article
15-16-02-0011
ISSN: 2770-3460, e-ISSN: 2770-3479
Sector:
Topic:
Citation:
Lai, F., "An Improved Rear-End Collision Avoidance Algorithm Based on Professional Driver Emergency Braking Behavior," SAE Int. J. Passeng. Veh. Syst. 16(2):167-179, 2023, https://doi.org/10.4271/15-16-02-0011.
Language:
English
Abstract:
An improved control method of automatic emergency braking (AEB) for rear-end
collision avoidance is proposed, which combines the advantages of a
time-to-collision (TTC) control algorithm and professional driver emergency
braking behavior. The TTC control algorithm mostly adopts phased braking, and
although it can avoid collision effectively, the braking process is radical and
brake comfort is poor. The emergency braking system with professional driver
fitting (PDF) has good comfort and can also avoid collision successfully.
However, its brake trigger time is too early, which leads to the stopping
distance being too large under high-speed conditions and affects the road
utilization. By combining the advantages of the two control methods, an improved
control algorithm for AEB is proposed. When the TTC value is not greater than a
predetermined limit, the PDF control switch will be closed to avoid collision.
Through the Matlab/Simulink and CarSim co-simulation platform, the European New
Car Assessment Programme (Euro-NCAP) test scenarios are constructed. The results
show that the proposed AEB control algorithm can not only ensure the
effectiveness of collision avoidance and brake comfort but also make the
stopping distance to be not too large in the case of high-speed collision
avoidance situations.