Arthur R Frelund

Title: Arthur R. Frelund: Innovator in Engine Control Technologies

Introduction

Arthur R. Frelund is a notable inventor based in Okemos, MI (US), recognized for his contributions to engine control technologies. He holds a total of 4 patents, showcasing his innovative approach to improving internal combustion engine performance.

Latest Patents

Frelund's latest patents include an "Engine control algorithm-cold start A/F modifier." This invention presents a method and apparatus for controlling the amount of fuel used in combustion during the open-loop run mode of an internal combustion engine. The system utilizes a lookup table calibrated to a fuel with a low driveability index to make fueling decisions. It also monitors indicators of fuel problems, such as the engine misfire detection system, engine speed, and manifold absolute pressure. If any of these indicators detect a fuel-related issue, a calculated fuel increase is implemented in one or more steps. Another significant patent is the "Engine combustion chamber pressure sensor," which features a sensor mounted on the engine that provides direct indications of combustion pressure. This innovation allows for real-time monitoring and control of combustion pressure, enhancing engine efficiency.

Career Highlights

Arthur R. Frelund is currently employed at GM Global Technology Operations, Inc., where he continues to develop advanced technologies for internal combustion engines. His work focuses on improving engine performance and reliability through innovative control systems.

Collaborations

Frelund collaborates with various professionals in the field, including his coworker Jay Tolsma, to drive advancements in engine technology.

Conclusion

Arthur R. Frelund's contributions to engine control technologies reflect his commitment to innovation and excellence in the automotive industry. His patents demonstrate a significant impact on improving engine performance and efficiency.