Predictive AEB Activation for Secondary Collision Risk Reduction Honda Motor Company, Limited

Format:

Book

Conference/Event

Author/Creator:

Kobayashi, Fumiya, author.

Fukuda, Kentaro, author.

Tani, Hiroaki, author.

Conference Name:

WCX SAE World Congress Experience (2026-04-14 : Detroit, Michigan, United States)

Language:

English

Subjects (All):

Safety regulations and standards.

Crash research.

Collision intervention systems.

Local Subjects:

Safety regulations and standards.

Crash research.

Collision intervention systems.

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2026

Summary:

Although the evaluation criteria of New Car Assessment Programs (NCAP) continue to evolve, they still predominantly focus on one-to-one collision scenarios. However, accident analyses based on traffic databases from the National Highway Traffic Safety Administration (NHTSA) in the United States and the Institute for Traffic Accident Research and Data Analysis (ITARDA) in Japan indicate that in real-world traffic environments, particularly at intersections with multi-lane arterial roads, complex situations involving multiple vehicles are likely to arise. Further examination of these crash configurations suggests that AEB activation, depending on the resulting stopping position, may entail a potential secondary collision risk under certain intersection conditions. To mitigate secondary collision risks, this study introduces a Secondary Collision Mitigation Logic (SCM Logic), which estimates Time-To-Intercept (TTI) for multiple crossing vehicles to predict when each vehicle will reach the potential collision area. In addition to TTI, the system evaluates whether the ego vehicle's predicted post-braking position is likely to overlap with the trajectory of a secondary target. This combined assessment enables the system to proactively identify scenarios where a potential risk of secondary side collisions may occur after AEB activation, allowing for earlier intervention than conventional TTC-based methods. The proposed SCM Logic was evaluated in closed-loop virtual simulations with CarMaker. In addition, open-loop vehicle tests with dummy targets were conducted to validate trigger timing, and the avoidance outcomes were assessed through estimated stopping-distance analyses based on measured and assumed parameters. Across representative scenarios, the results indicate a reduction tendency in predicted secondary collision occurrences relative to a baseline AEB. These findings suggest that incorporating multi-vehicle intersection scenarios into future NCAP evaluations would enable a more accurate and realistic assessment of AEB effectiveness in real-world traffic environments. The proposed approach contributes to the advancement of vehicle safety technologies and supports the development of more comprehensive and practical safety standards across the automotive industry

Notes:

Vendor supplied data

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