Hyung-June Cho

Title: Hyung-June Cho: Innovator in Propulsion Systems

Introduction

Hyung-June Cho is a notable inventor based in Seoul, South Korea. He has made significant contributions to the field of propulsion systems, particularly through his innovative patent that enhances the functionality of electric motors.

Latest Patents

Hyung-June Cho holds a patent for a propulsion system with rotor position estimation based on voltage signal. This system includes an electric motor designed to generate torque for device propulsion. A position sensor determines the rotor position of the electric motor. The controller is programmed to estimate the rotor position when a sensor fault condition is detected. It selectively commands the injection of a voltage signal in a direct magnetic axis when the motor speed is below a predefined threshold. The rotor position is estimated based on the motor current response to the voltage signal, which is characterized by an alternating periodic shape with constant segments.

Career Highlights

Throughout his career, Hyung-June Cho has worked with prominent organizations, including GM Global Technology Operations, Inc. and Seoul National University. His experience in these institutions has allowed him to refine his expertise in propulsion systems and electric motor technology.

Collaborations

Hyung-June Cho has collaborated with notable colleagues such as Anno Yoo and Seung-Ki Sul. Their joint efforts have contributed to advancements in the field of propulsion systems.

Conclusion

Hyung-June Cho's innovative work in propulsion systems exemplifies the impact of dedicated inventors in advancing technology. His contributions continue to influence the development of electric motor systems.