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Performance Tradeoff Between Control Period and Delay: Lane Keeping Assist System Case Study

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2015, 20(11), pp.39-46
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science

차현준 1 박성우 1 정우혁 1 Jong-Chan Kim 1

1국민대학교

Accredited

ABSTRACT

In this paper, we propose a performance-aware workload model for efficient implementation of control systems. When implementing a control algorithm as an embedded computer system, the control code executes periodically. For such systems, its control performance depends on not only the accuracy of the control algorithm itself but also temporal parameters such as control period and sensing to actuation delay. In this regard, this paper studies the relation between control period and delay by measuring and analyzing the control performance of LKAS (Lane Keeping Assist System) with varying period and delay combinations. Through this experimental study, this paper shows that the two timing parameters, i.e.,control period and delay, has a tradeoff relation in terms of control performance.

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