Geun Oh Dong

Title: Innovations by Geun Oh Dong

Introduction

Geun Oh Dong is a notable inventor based in Gyeonggi-do, South Korea. He has made significant contributions to the field of electric motor technology, particularly in the development of control methods for brushless direct current (DC) motors. With a total of two patents to his name, his work has implications for various applications, including electric water pumps.

Latest Patents

Geun Oh Dong's latest patents include a "Brushless direct current electric motor driving control method and system of electrical water pump." This invention provides a method and system for controlling the driving of a brushless DC electric motor used in electric water pumps. The method involves estimating the initial position of a rotor by detecting the magnitude of current in a three-phase coil wound on a stator. It converts this current magnitude, which reflects the rotor's rotational angle, into two direct currents based on the three-phase current. The system outputs these direct currents and acquires the rotor's rotational angle, speed, flux, and torque based on various parameters. The motor's speed is then adjusted according to the acquired values.

Another significant patent is the "Method for diagnosing electric water pump of engine." This method focuses on diagnosing the condition of an electric water pump in an internal combustion engine. It determines whether the present condition allows for a coil-open diagnosis, which checks if any coil of a sensorless three-phase motor is open. The method uses changes in phase currents and motor torque to ascertain the status of the coils during operation.

Career Highlights

Geun Oh Dong has worked with prominent companies in the automotive industry, including Hyundai Motor Company and Kia Motors Corporation. His experience in these organizations has contributed to his expertise in electric motor technology and innovation.

Collaborations

Some of his notable coworkers include Dong Soo Shim and Yeon Ho Kim. Their collaboration has likely fostered an environment of innovation and technological advancement in their respective projects.

Conclusion

Geun Oh Dong's contributions to electric motor technology through his patents and career in the automotive industry highlight his role as an influential inventor. His work continues to impact the development of efficient motor control systems.