TY - JOUR
T1 - Semi-autonomous adaptive cruise control systems
AU - Rajamani, R.
AU - Zhu, C.
PY - 2002/9
Y1 - 2002/9
N2 - The concept of a semi-autonomous adaptive cruise control (SAACC) system is developed, which enjoys significant advantages over present day adaptive cruise control (ACC) systems in terms of highway safety and traffic flow capacity. The semi-autonomous systems combine the deployment advantages of autonomous vehicles with the performance advantages of fully automated highway systems (AHSs) in which vehicles operate cooperatively as a platoon. Unlike platoon systems, the semi-autonomous systems will be immediately deployable on present day highways, where both manually driven and adaptive cruise controlled vehicles can coexist. The theoretical results in this paper show that the proposed system would be able to safely maintain smaller time gaps, would be string stable, and would be guaranteed to have smaller actuator inputs than a standard autonomous ACC system. The simulation results in the paper indicate that more accurate and smoother tracking, smaller time gaps, smaller control efforts, and increased robustness to vehicle dynamics are achieved by semi-autonomous control.
AB - The concept of a semi-autonomous adaptive cruise control (SAACC) system is developed, which enjoys significant advantages over present day adaptive cruise control (ACC) systems in terms of highway safety and traffic flow capacity. The semi-autonomous systems combine the deployment advantages of autonomous vehicles with the performance advantages of fully automated highway systems (AHSs) in which vehicles operate cooperatively as a platoon. Unlike platoon systems, the semi-autonomous systems will be immediately deployable on present day highways, where both manually driven and adaptive cruise controlled vehicles can coexist. The theoretical results in this paper show that the proposed system would be able to safely maintain smaller time gaps, would be string stable, and would be guaranteed to have smaller actuator inputs than a standard autonomous ACC system. The simulation results in the paper indicate that more accurate and smoother tracking, smaller time gaps, smaller control efforts, and increased robustness to vehicle dynamics are achieved by semi-autonomous control.
KW - Adaptive cruise control
KW - Inter-vehicle communication
KW - Vehicle control
UR - http://www.scopus.com/inward/record.url?scp=0036766704&partnerID=8YFLogxK
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U2 - 10.1109/TVT.2002.800617
DO - 10.1109/TVT.2002.800617
M3 - Article
AN - SCOPUS:0036766704
SN - 0018-9545
VL - 51
SP - 1186
EP - 1192
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 5
ER -