Heung Sun Yoon

Publications

2 UML Model for Double-Loop Control Self-Adaptive Braking System

Authors: Jong Tae Kim, Heung Sun Yoon

Abstract:

In this paper, we present an activity diagram model for double-loop control self-adaptive braking system. Since activity diagram helps to improve visibility of self-adaption. We can easily find where improvement is needed on double-loop control. Double-loop control is adopted since the design conditions and actual conditions can be different. The system is reconfigured in runtime by using double-loop control. We simulated to verify and validate our model by using MATLAB. We compared single-loop control model with double-loop control model. Simulation results show that double-loop control provides more consistent brake power control than single-loop control.

Keywords: Automotive, Vehicle, UML, Braking System, activity diagram, double-loop, self-adaptive

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1 SystemC Modeling of Adaptive Least Mean Square Filter

Authors: Jong Tae Kim, Kyu Han Kim, Soon Kyu Kwon, Heung Sun Yoon

Abstract:

In this paper, we demonstrate the adaptive least-mean-square (LMS) filter modeling using SystemC. SystemC is a modeling language that allows designer to model both hardware and software component and makes it possible to design from high level system of abstraction to low level system of abstraction. We produced five adaptive least-mean-square filter models that are classed as five abstraction levels using SystemC proceeding from the abstract model to the more concrete model.

Keywords: systemC, adaptive filter, Least-Mean-Square Algorithm, Transversal Fir Filter

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Abstracts

1 UML Model for Double-Loop Control Self-Adaptive Braking System

Authors: Jong Tae Kim, Heung Sun Yoon

Abstract:

In this paper, we present an activity diagram model for double-loop control self-adaptive braking system. Since activity diagram helps to improve visibility of self-adaption, we can easily find where improvement is needed on double-loop control. Double-loop control is adopted since the design conditions and actual conditions can be different. The system is reconfigured in runtime by using double-loop control. We simulated to verify and validate our model by using MATLAB. We compared single-loop control model with double-loop control model. Simulation results show that double-loop control provides more consistent brake power control than single-loop control.

Keywords: Automotive, Vehicle, UML, Braking System, activity diagram, double-loop, self-adaptive

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