This inventor holds 3 USPTO granted patents and 4 published patent applications. Top assignees: Hyundai Motor Company, Kia Corporation. Active years: 2025-2026.
Company Filing History:
3 out of 20,247 
3 out of 5,729 
Years Active: 2025-2026
Title: Chang Eun Na: Innovator in Eco-Friendly Vehicle Technology
Introduction
Chang Eun Na is a notable inventor based in Icheon, South Korea. He has made significant contributions to the field of eco-friendly vehicle technology, holding 3 patents that focus on enhancing vehicle performance and efficiency. His work is particularly relevant in today's context of increasing environmental concerns and the push for sustainable transportation solutions.
Latest Patents
Chang Eun Na's latest patents include a "System for controlling regenerative braking torque of eco-friendly vehicle and method of controlling same." This innovative system is designed to quickly reduce and maintain a wheel slip amount below a reference value during coasting. By controlling the regenerative brake to zero when wheel slip exceeds the reference value and the Anti-lock Brake System (ABS) is activated, the system ensures coasting stability and effective regenerative braking. Additionally, he has developed a "System and method for limiting maximum acceleration of a motor driven vehicle." This invention estimates acceleration based on the vehicle's speed and limits maximum acceleration to maintain consistent performance, regardless of the vehicle's weight and road conditions, thereby enhancing ride comfort and fuel efficiency.
Career Highlights
Throughout his career, Chang Eun Na has worked with prominent companies in the automotive industry, including Hyundai Motor Company and Kia Corporation. His experience in these organizations has allowed him to apply his innovative ideas in practical settings, contributing to advancements in vehicle technology.
Collaborations
Chang Eun Na has collaborated with talented individuals in his field, including Hyun Seok Jang and Seung Ho Choi. These collaborations have fostered a creative environment that encourages the development of cutting-edge technologies.
Conclusion
Chang Eun Na is a pioneering inventor whose work in eco-friendly vehicle technology is making a significant impact. His patents reflect a commitment to improving vehicle performance and sustainability. As the automotive industry continues to evolve, Chang Eun Na's contributions will undoubtedly play a crucial role in shaping the future of transportation.