Principal Investigator

Professional Experience

  • May 2025 - Present, Assistant Professor, CCS Graduate School of Mobility, KAIST
  • Sep 2022 - May 2025, Adjunct Professor, AI Graduate School, GIST
  • Mar 2022 - May 2025, Assistant Professor, Department of Mechanical and Robotics Engineering, GIST
  • Jan 2021 - Feb 2022, Research Assistant Professor, Research Center for Eco-Friendly & Smart Vehicles, KAIST
  • Mar 2020 - Jan 2021, Postdoctoral Fellow, Research Center for Eco-Friendly & Smart Vehicles, KAIST

Education

  • Ph.D. in Mechanical Engineering, KAIST, 2020 (Advisor: Prof. Kyung-soo Kim)
  • M.S. in Mechanical Engineering, KAIST, 2015 (Advisor: Prof. Kyung-soo Kim)
  • B.S. in Mechanical Engineering, KAIST, 2013 (Advisor: Prof. Kyung-soo Kim)

Hands-on Experience with Mobility Systems

    Experience in developing various types of mobility systems through active involvement in multiple R&D projects
Key Figure
    • Project 1: 자율주행 전기차용 고성능 조향제어기술 개발 (19.1.~21.12, 한국자동차연구원)
    • Project 2: 전기차 연관산업 육성기반 조성사업 (19.1.~21.12, 제주특별자치도)
    • Project 3: 인프라 센싱 기반 자율주행 전기자동차 개발 연구 (19.8.~21.12., KAIST)
    • Project 4: 자율주행 기능지원을 위한 소프트웨어 오픈 API를 가지는 전기차용 샤시플랫폼 개발 (22.6.~23.5., 한국자동차연구원)
    • Project 5: 자율주행을 위한 PBV용 조향제어기술 연구 (23.8.~23.11., 한국전자통신연구원)

    Key contributions and achievements in Project 1
Key Figure Key Figure

International Journal Papers

  1. K. Choi, Y. Kim, S.-K. Kim*, and K.-S. Kim*, “Computationally Efficient Model Predictive Torque Control of Permanent Magnet Synchronous Machines Using Numerical Techniques,” IEEE Transactions on Control Systems Technology, vol. 30, no. 4, pp. 1774-1781, 2022.
  2. K. Choi, J. Byun, S. Lee, and I. G. Jang*, “Adaptive Equivalent Consumption Minimization Strategy (A-ECMS) for the HEVs with a Near-optimal Equivalent Factor Considering Driving Conditions,” IEEE Transactions on Vehicular Technology, vol. 71, no. 3, pp. 2538-2549, 2022.
  3. J. Byun and K. Choi*, “Effects Analysis of Light-duty Diesel Truck Hybrid Conversion Depending on Driving Style,” Transportation Research Part D: Transport and Environment, vol. 97, pp. 102958, 2021.
  4. K. Choi, Y. Kim, K.-S. Kim*, and S.-K. Kim*, “Real-time Optimal Torque Control of Interior Permanent Magnet Synchronous Motors Based on a Numerical Optimization Technique,” IEEE Transactions on Control Systems Technology, vol. 29, no. 4, pp. 1815-1822, 2021.
  5. K. Choi, Y. Kim, S.-K. Kim*, and K.-S. Kim*, “Current and Position Sensor Fault Diagnosis Algorithm for PMSM Drives Based on Robust State Observer,” IEEE Transactions on Industrial Electronics, vol. 68, no. 6, pp. 5227-5236, 2021.
  6. K. Choi, Y. Kim, S.-K. Kim*, and K.-S. Kim, “Auto-calibration of Position Offset for PMSM Drives with Uncertain Parameters,” Electronics Letters, vol. 56, no. 20, pp. 1048-1051, 2020.
  7. K. Choi, D. S. Kim, and S.-K. Kim*, “Disturbance Observer-based Offset-free Global Tracking Control for Input-constrained LTI Systems with DC/DC Buck Converter Applications,” Energies, vol. 13, no. 16, p. 4079, 2020.
  8. K. Choi, Y. Kim, K.-S. Kim*, and S.-K. Kim*, “Output Voltage Tracking Controller Embedding Auto-tuning Algorithm for DC/DC Boost Converters,” IET Power Electronics, vol. 12, no. 14, pp. 3767-3773, 2019.
  9. K. Choi, K.-S. Kim*, and S.-K. Kim*, “Proportional-type Sensor Fault Diagnosis Algorithm for DC/DC Boost Converters Based on Disturbance Observer,” Energies, vol. 12, no. 8, p. 1412, 2019.
  10. K. Choi, Y. Kim, K.-S. Kim*, and S.-K. Kim*, “Using the Stator Current Ripple Model for Real-time Estimation of Full Parameters of a Permanent Magnet Synchronous Motor,” IEEE Access, vol. 7, pp. 33369-33379, 2019.

International Patents - Registered

  1. K.-S. Kim, K. Choi, and I. G. Jang, “Method and apparatus for controlling power of hybrid vehicle considering driving environment,” U.S. Patent 12,097,840, Sep. 24, 2024.
  2. K.-S. Kim, K. Choi, and S.-K. Kim, “Method and apparatus for real-time estimation of full parameters of permanent magnet synchronous motor,” U.S. Patent 11,614,488, Mar. 28, 2023.
  3. I. G. Jang, D. Kum, K.-S. Kim, K. Jang, C. Lee, J. H. Kim, K. Choi, and M. Kim, “Apparatus and method for operating accessories of vehicle during engine stop using one-way clutch pulley,” U.S. Patent 11,607,944, Mar. 21, 2023.

International Patents - Pending

  1. K.-S. Kim, K. Choi, and I. G. Jang, “Method and apparatus for controlling power of hybrid vehicle considering transient characteristics,” U.S. Patent Application 18/648,697, Apr. 29, 2024, pending.

Domestic Patents - Registered

  1. 김경수, 최경환, 장인권, “하이브리드 차량의 과도특성을 고려한 동력제어 방법 및 장치,” 대한민국 특허 10-2701529, 2024.8.28.
  2. 김경수, 최경환, 장인권, “하이브리드 차량의 주행환경을 고려한 동력제어 방법 및 장치,” 대한민국 특허 10-2508409, 2023.3.6.
  3. 김경수, 최경환, 김석균, “영구자석동기모터 전체 파라미터의 실시간 추정 방법 및 장치,” 대한민국 특허 10-2437244, 2022.8.24.
  4. 장인권, 금동석, 김경수, 장기태, 이창우, 김종호, 최경환, 김민기, “원웨이 클러치 풀리를 이용한 엔진 정지 시 차량 부가장치의 구동 장치 및 방법,” 대한민국 특허 10-2053538, 2019.12.2.
  5. 김경수, 임미림, 최경환, 금동석, “유성기어를 이용한 전기화 수동변속기 기반 하이브리드 파워트레인 제어 방법,” 대한민국 특허 10-2044210, 2019.11.7.