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Towards Emergency Braking as a Fail-Safe State in Platooning: A Simulative Approach


Publication Type:

Conference/Workshop Paper


2019 IEEE 90th Vehicular Technology Conference: VTC2019-Fall





Platooning is anticipated to facilitate automated driving even with semi-automated vehicles, by forming road trains using breadcrumb tracing and Cooperative Adaptive Cruise Control (CACC). With CACC, the vehicles coordinate and adapt their speed based on wireless communications. To keep the platoon fuel-efficient, the inter-vehicle distances need to be quite short, which requires automated emergency braking capabilities. In this paper, we propose synchronized braking, which can be used together with existing CACC controllers. In synchronized braking, the leading vehicle in the platoon does not brake immediately, but instead communicates its intentions and then, slightly later, the whole platoon brakes simultaneously. We show that synchronized braking can avoid rear-end collisions even at a very high deceleration rate and with short inter-vehicle distances. Also, the extra distance travelled during the delay before braking can be compensated by enabling a higher deceleration, through coordinated synchronized braking.


author = {Shahriar Hasan and Ali Balador and Svetlana Girs and Elisabeth Uhlemann},
title = {Towards Emergency Braking as a Fail-Safe State in Platooning: A Simulative Approach},
isbn = {978-1-7281-1220-6},
pages = {1--5},
month = {November},
year = {2019},
booktitle = {2019 IEEE 90th Vehicular Technology Conference: VTC2019-Fall},
publisher = {IEEE},
url = {}