Arata Ejiri

Title: Arata Ejiri: Innovator in Engine Control Technology

Introduction

Arata Ejiri is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of engine control technology, holding a total of 11 patents. His work focuses on enhancing the performance and efficiency of engines through innovative control methods.

Latest Patents

Ejiri's latest patents include an engine control apparatus and method that utilizes a dynamic feedforward amount to achieve a predetermined transient response characteristic. This method compensates for the transient response of an engine equipped with a Variable Nozzle Turbo (VNT) and an Exhaust Gas Recirculator (EGR). By calculating command values for the nozzle opening degree of the VNT and the valve opening degree of the EGR, the transient state of the engine can be improved to follow target values more closely. Another notable patent involves using models of both transient and steady-state characteristics of an engine to calculate disturbance estimates. This approach allows for the adjustment of initial command values, thereby reducing model errors and stabilizing the Mass Air Flow and Manifold Air Pressure.

Career Highlights

Throughout his career, Arata Ejiri has worked with notable companies such as Fujitsu Corporation and Fujitsu Media Devices Limited. His experience in these organizations has contributed to his expertise in engine control systems and technology.

Collaborations

Ejiri has collaborated with talented individuals in his field, including Tsugito Maruyama and Mitsuhiko Ohta. These partnerships have fostered innovation and advancement in engine control technologies.

Conclusion

Arata Ejiri's contributions to engine control technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence the development of more efficient and responsive engine systems.