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A Car-Following Control Strategy for AEB Systems Balancing Safety and Comfort
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Huiqiang ZHAO1, Zhiyuan GUO2, Zhaobo LIU2
Chinese Journal of Automotive Engineering | 2025, 15(4) : 445 - 456
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Chinese Journal of Automotive Engineering | 2025, 15(4): 445-456
• Safety Technology Section/ Editor-in-Chief：CAO Libo •
A Car-Following Control Strategy for AEB Systems Balancing Safety and Comfort
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Huiqiang ZHAO1, Zhiyuan GUO2, Zhaobo LIU2
Affiliations
  • 1 Shaanxi Fast Motor Transmission Group Co.，Ltd.，Xi’an 710119，China
  • 2 School of Automobile，Chang'an University，Xi’an 710064，China
Published: 2025-07-20 doi: 10.3969/j.issn.2095‒1469.2025.04.02
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To address the difficulty of balancing safety and ride comfort, this paper proposes a new safety model considering both factors, and introduces a corresponding early-warning braking strategy. First, the second-order time-to-collision (TTC) model is constructed by incorporating the accelerations of both vehicles into the classical TTC model. Then the safety distance model based on braking process analysis is modified according to road conditions. Combining the safety and comfort requirements, the paper employs the second-order TTC model during the warning phase, and the modified safety distance model during the braking phase to judge dangerous states. The hierarchical AEB control system is designed, and co-simulation and real-vehicle test platforms are built for verification. The results show that, under various test scenarios, the proposed car-following control strategy for AEB systems successfully avoids collisions, initiates braking without disrupting normal driving, provides warning times that give the driver ample reaction time, keeps the minimum inter-vehicle distance after braking within a reasonable range, and achieves effective hazard avoidance even on wet roads.

active safety  /  AEB system  /  security models  /  control strategies
Huiqiang ZHAO, Zhiyuan GUO, Zhaobo LIU. A Car-Following Control Strategy for AEB Systems Balancing Safety and Comfort[J]. Chinese Journal of Automotive Engineering, 2025 , 15 (4) : 445 -456 . DOI: 10.3969/j.issn.2095‒1469.2025.04.02
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Year 2025 volume 15 Issue 4
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Article Info
doi: 10.3969/j.issn.2095‒1469.2025.04.02
  • Receive Date：2024-03-06
  • Online Date：2025-09-10
  • Published：2025-07-20
Article Data
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History
  • Received：2024-03-06
  • Revised：2024-06-19
Funding
Affiliations
    1 Shaanxi Fast Motor Transmission Group Co.，Ltd.，Xi’an 710119，China
    2 School of Automobile，Chang'an University，Xi’an 710064，China
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https://castjournals.cast.org.cn/joweb/qcgcxb/EN/10.3969/j.issn.2095‒1469.2025.04.02
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