Title
Graceful degradation of CACC performance subject to unreliable wireless communication
Author
Ploeg, J.
Semsar-Kazerooni, E.
Lijster, G.
van de Wouw, N.
Nijmeijer, H.
Publication year
2013
Abstract
Cooperative Adaptive Cruise Control (CACC) employs wireless intervehicle communication, in addition to onboard sensors, to obtain string-stable vehicle-following behavior at small intervehicle distances. As a consequence, however, CACC is vulnerable to communication impairments such as packet loss, in which case it would effectively degrade to conventional Adaptive Cruise Control (ACC), thereby increasing the minimal intervehicle distance needed for string-stable behavior. Therefore, a control strategy for graceful degradation of one-vehicle look-ahead CACC is proposed to partially maintain the string stability properties of CACC. This strategy is based on estimating the preceding vehicle's information, here acceleration, using the onboard sensors. Whenever needed, this estimated acceleration can be used as an alternative to the desired acceleration transmitted through wireless communication for this type of CACC. It is shown through simulations and experiments that the proposed strategy results in a noticeable improvement of string stability characteristics, when compared to the situation in which ACC is used as a fallback scenario. © 2013 IEEE.
Subject
Mechatronics, Mechanics & Materials
IVS - Integrated Vehicle Safety
TS - Technical Sciences
Traffic
Mobility
Cooperative adaptive cruise control
CACC
Wireless communication
Degradation
Adaptive cruise control
ACC
To reference this document use:
http://resolver.tudelft.nl/uuid:cc91ce34-ba38-44b9-992e-40598e446880
DOI
https://doi.org/10.1109/itsc.2013.6728397
TNO identifier
493016
ISBN
9781479929146
Source
2013 16th International IEEE Conference on Intelligent Transportation Systems: Intelligent Transportation Systems for All Modes, ITSC 2013, 6 October 2013 through 9 October 2013, The Hague, 1210-1216
Article number
6728397
Document type
conference paper