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Real-Time Automatic Test of AEB with Brake System in the Loop
Technical Paper
2018-01-1450
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The limitation of drivers' attention and perception may bring collision dangers, Autonomous Emergency Braking (AEB) can help drivers to avoid the potential collisions through active braking. Since the positive effect of it, motor corporations have begun to equip their vehicles with the system, and regulatory agencies in various countries have introduced test standards.
At this stage, the actuator of AEB usually adopts Electronic Stability Program (ESP), but it poor performance of continuous working period and active pressure built-up for all wheels limits its implements. Electromechanical brake booster can realize power assisted brake without relying on the vacuum source and a variety of specific power curves. Moreover it can achieve the active braking with a rapid response, which make it can fulfill requirements of automotive electric and intelligent development. In order to further improve the response speed and stability of AEB system, this paper adopts the scheme which combines the ESP with electromechanical brake booster. In addition, employing an improved Time-to-Collision (TTC) model to takes accelerations into consideration.
Due to the complexity of actual traffic conditions, a large number of simulations and experiments are needed for evaluating the effectiveness of AEB system, which means a great deal of time consumption. To improve the efficiency and accuracy in the test of AEB systems, this paper achieves the automatic tests with brake system in the loop by dSPACE tools according to the Euro NCAP test standards, and further validates the advantages of the proposed control scheme.
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Ye, Y., Zhao, J., Wu, J., Zhu, B. et al., "Real-Time Automatic Test of AEB with Brake System in the Loop," SAE Technical Paper 2018-01-1450, 2018, https://doi.org/10.4271/2018-01-1450.Data Sets - Support Documents
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