Journal of System Design and Dynamics
Online ISSN : 1881-3046
ISSN-L : 1881-3046
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An ACC Design Method for Achieving Both String Stability and Ride Comfort
Yoshinori YAMAMURAYoji SETOHikaru NISHIRATaketoshi KAWABE
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JOURNAL FREE ACCESS

2008 Volume 2 Issue 4 Pages 979-990

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Abstract
An investigation was made of a method for designing adaptive cruise control (ACC) so as to achieve a headway distance response that feels natural to the driver while at the same time obtaining high levels of both string stability and ride comfort. With this design method, the H norm is adopted as the index of string stability. Additionally, two norms are introduced for evaluating ride comfort and natural vehicle behavior. The relationship between these three norms and headway distance response characteristics was analyzed, and an evaluation method was established for achieving high levels of the various performance characteristics required of ACC. An ACC system designed with this method was evaluated in driving tests conducted on a proving ground course, and the results confirmed that it achieved the targeted levels of string stability, ride comfort and natural vehicle behavior.
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© 2008 by The Japan Society of Mechanical Engineers
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