Kenichiro Yonezawa

Title: Kenichiro Yonezawa: Innovator in Internal Combustion Engine Control

Introduction

Kenichiro Yonezawa is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of internal combustion engine control systems. With a total of 2 patents to his name, Yonezawa's work focuses on enhancing the accuracy of misfire detection in engines.

Latest Patents

Yonezawa's latest patents include a control device for an internal combustion engine. This device determines the presence or absence of misfire based on an angle detection cycle calculated from an output signal of an angle sensor. The control device comprises an arithmetic processing device and a storage device. The storage device stores the angle detection cycle calculated in a misfire detection threshold value comparison section after the reference angle section. The arithmetic processing device determines the presence or absence of misfire based on the misfire detection threshold value cycle calculated from the reference detection cycle and the threshold value comparison target cycle. This innovation allows for accurate determination of misfire presence in internal combustion engines.

Another significant patent is a controller that determines misfire for an internal combustion engine. This controller can accurately identify the presence or absence of misfire, even when rotational variations occur due to factors other than misfire. It calculates a reference detection period within a reference angle interval, including a top dead center. The controller also calculates period deviations and integrates these values to determine misfire presence in the combustion stroke.

Career Highlights

Kenichiro Yonezawa is currently employed at Mitsubishi Electric Corporation, where he continues to innovate in the field of engine control systems. His work has been instrumental in advancing technology that enhances engine performance and reliability.

Collaborations

Yonezawa has collaborated with notable colleagues, including Tatsuo Fujimoto and Nobuyoshi Tomomatsu. Their combined expertise contributes to the development of cutting-edge technologies in the automotive sector.

Conclusion

Kenichiro Yonezawa's contributions to internal combustion engine control systems demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of engine dynamics and a drive to improve automotive technology.