Sangyeon Han

Title: Innovations of Sangyeon Han in Engine Control Systems

Introduction

Sangyeon Han is a notable inventor based in Hwaseong-si, South Korea. He has made significant contributions to the field of engine control systems, particularly through his innovative patent that enhances engine performance and emissions control.

Latest Patents

Sangyeon Han holds a patent for an "Engine control system provided with dual continuously variable valve duration device and method of GPF forcible regeneration using the same." This advanced engine control system incorporates a dual continuously variable valve duration (CVVD) device designed to optimize engine performance. The system features an engine with a combustion chamber, an intake valve for selectively supplying an air-fuel mixture, an ignition plug for combustion, and an exhaust valve for expelling exhaust gas. The CVVD device is responsible for adjusting the intake and exhaust valve durations. Additionally, a turbine positioned downstream of the engine increases exhaust pressure, followed by a warm-up catalyst that preheats the exhaust gas, and a gasoline particulate filter (GPF) that filters soot. The controller, which operates based on vehicle driving conditions, adjusts ignition timing, intake, and exhaust durations. When lambda (λ) is 1, the controller manages exhaust duration to prevent overlap with intake valve timing by retarding exhaust valve opening and advancing exhaust valve closing. This process maintains a negative valve overlap period, thereby enhancing GPF regeneration and emissions control.

Career Highlights

Sangyeon Han has worked with prominent automotive companies, including Hyundai Motor Company and Kia Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in engine technology.

Collaborations

Sangyeon Han has collaborated with Jinyoung Jung, contributing to the advancement of engine control systems and enhancing their effectiveness in modern vehicles.

Conclusion

Sangyeon Han's innovative work in engine control systems demonstrates his commitment to improving automotive technology and emissions control. His contributions are significant in the ongoing evolution of engine performance optimization.