Toshiaki Motomura

Title: Toshiaki Motomura: Innovator in Continuously Variable Transmission Technology

Introduction

Toshiaki Motomura is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of automotive technology, particularly in the area of continuously variable transmissions (CVTs). With a total of four patents to his name, Motomura's work has had a substantial impact on vehicle performance and efficiency.

Latest Patents

One of Motomura's latest patents is a control method and control apparatus for continuously variable transmission. This innovative control method detects the magnitude of an acceleration request. When this request exceeds a preset threshold value, the method controls the transmission ratio by switching from a first shift mode, which allows for a stepless change in the target transmission ratio, to a second shift mode that includes a stepwise change. During the execution of the second shift mode, the target engine rotation speed is set according to the magnitude of the acceleration request. A step-down shift is executed at the acceleration start time, lowering the target transmission ratio stepwise according to the target engine rotation speed, which is retained for a predetermined period.

Another significant patent by Motomura is related to automatic transmission and its control method. In vehicles equipped with a continuously variable transmission, the controller selectively performs a first control mode for stepless transmission ratio control and a second control mode for stepwise control to facilitate an upshift after the vehicle speed has increased. When the second control mode is activated in response to a driver's acceleration request, the controller continuously downshifts the transmission ratio until the upshift is completed.

Career Highlights

Throughout his career, Toshiaki Motomura has worked with prominent companies in the automotive industry, including Nissan Motor Company Limited and Jatco Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in transmission technology.

Collaborations

Motomura has collaborated with talented individuals in his field, including Daigo Kishi and Hironori Miyaishi. These collaborations have contributed to the advancement of automotive technologies and the successful implementation of his inventions.

Conclusion

Toshiaki Motomura is a distinguished inventor whose work in continuously variable transmission technology has led to significant advancements in the automotive industry. His innovative patents and collaborations with industry professionals highlight his commitment to improving vehicle performance and efficiency.