Akiyoshi Negishi

Title: Akiyoshi Negishi: Innovator in Vehicle Engine Control Technology

Introduction

Akiyoshi Negishi, an esteemed inventor based in Aichi, Japan, has made significant contributions to the field of automotive technology. With a total of two patents to his name, Negishi's work focuses on enhancing vehicle engine control devices, showcasing his innovative spirit and commitment to advancing automotive engineering.

Latest Patents

Negishi's latest inventions include two notable patents:

1. **Vehicle Engine Control Device**: This device is designed to stop fuel injection under predetermined fuel cut conditions. It ensures that when the fuel injection is halted, the inertia of the power transmission system rotating with the engine plays a crucial role. The system restarts fuel injection at a lower engine rotation speed relative to cases with a larger inertia rate, thus optimizing performance. Moreover, a clutch interposed between the engine and the power transmission system allows for precise control of power transmission, contributing to enhanced fuel efficiency and engine response.

2. **Control Apparatus for Internal Combustion Engine**: This innovative apparatus estimates intake air pressure and target control values while considering the running conditions of the engine. It calculates the target control values based on the actual intake air pressure, taking into account both steady and transient operating states. The incorporation of a turbocharger's supercharging efficiency into the calculations enhances engine performance and responsiveness.

Career Highlights

Akiyoshi Negishi has been instrumental in developing advanced technologies at Toyota Motor Corporation. His work leverages his extensive knowledge of automotive engineering principles and showcases his ability to design systems that significantly improve engine control mechanisms. His patents reflect his determination to push the boundaries of technology within the automotive industry.

Collaborations

Negishi has collaborated with several talented engineers, including Kazuya Kibe and Ryo Suzuki. Together, they have shared insights and expertise, fostering a collaborative environment that promotes innovation at Toyota. These partnerships have resulted in cutting-edge solutions that enhance vehicle performance and efficiency.

Conclusion

As a pioneering inventor, Akiyoshi Negishi stands out for his contributions to vehicle engine technology. His commitment to innovation is evident in his patents and collaborative efforts at Toyota Motor Corporation. With a focus on optimizing engine performance and efficiency, Negishi continues to inspire future advancements in the automotive industry.