University of California, Riverside

Department of Electrical and Computer Engineering

Distinguished Colloquium Speaker: Professor Naehyuck Chang presents a talk on "Power-Aware Cyber-Physical Systems"

Distinguished Colloquium Speaker: Professor Naehyuck Chang presents a talk on....

Distinguished Colloquium Speaker: Professor Naehyuck Chang presents a talk on "Power-Aware Cyber-Physical Systems"

November 13, 2017 - 11:10 am
Winston Chung Hall, 205/206


In this talk, we introduce system-level solutions to enhance electric vehicle fuel efficiency with the current power-train technologies. First, we develop an instantaneous power consumption modeling of electric vehicles by the curb weights, speed, acceleration, road slope, passenger and cargo weights, motor capacity, and so-on, as a battery discharge model. We ensure the model fidelity as we fabricate a lightweight custom electric vehicle perform extensive measurement. The model fidelity enables us to achieve a more accurate range estimation. We attempt both design and run-time energy optimization using the electric vehicle-specific energy characteristics. We emphasize that electric vehicles show completely different fuel consumption behaviors from internal combustion engine vehicles due to the significant discrepancy in the drive-train. We introduce minimum energy driving methods for electric vehicles, which are largely different from ecodriving methods of internal combustion engine vehicles. We also propose a rapid energy-aware electric vehicle synthesis that allows users to quickly customize their own electric vehicle power-train specification without understanding the technology.This talk also gives a heads-up of an application-specific (extreme off-road driving) electric vehicle design challenges. We prove that electric vehicles are capable, efficient, and promising on extreme off-roads through real trail-run tests.


Naehyuck Chang is a Full Professor at the Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST) from 2014. Before he joined KAIST, he was with the Department of Computer Science and Engineering, Seoul National University from 1997 to 2014. Dr. Chang also served as a Vice Dean of College of Engineering, Seoul National University from 2011 to 2013. His current research interests include low-power embedded systems and Design Automation of Things such as systematic design and optimization of cyber-physical systems. Dr. Chang is an ACM Fellow and an IEEE Fellow for contribution to low-power systems. He was the Chair of the ACM SIGDA (Special Interest Group on Design Automation) and now the Past Chair of ACM SIGDA. Dr. Chang is the Editor-in-Chief of the ACM (Association for Computing Machinery) Transactions on Design Automation of Electronics Systems, and an Associate Editor of IEEE Transactions on Very Large Scale Integration Systems. He also served for IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, IEEE Embedded Systems Letters, ACM Transactions on Embedded Computing Systems as an Associate Editor.

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University of California, Riverside
900 University Ave.
Riverside, CA 92521
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Electrical and Computer Engineering
Suite 343 Winston Chung Hall
University of California, Riverside
Riverside, CA 92521-0429

Tel: (951) 827-2484
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