Shigetaka Wakisaka

Title: Innovations by Shigetaka Wakisaka

Introduction

Shigetaka Wakisaka is a notable inventor based in Anjo, Japan. He has made significant contributions to the field of automatic transmission technology, holding two patents that showcase his expertise and innovative thinking.

Latest Patents

Wakisaka's latest patents include a hydraulic pressure control apparatus for automatic transmission. This system controls the discharge pressure of an input clutch hydraulic servo during a D to N shift. It features a peak value rate of change of the rotational speed of an input shaft that increases based on the initial pressure adjusting control value. A convergence region is established to facilitate learning based on comparisons between previous and present peak values.

Another significant patent is the speed shift control apparatus for automatic transmission. This invention determines the type of downshift based on inputs from various sensors, allowing for either minimum shock or responsiveness. The oil pressure on the hydraulic servo is controlled according to the determined downshift type, enabling the releasing-side friction engagement element to be released in accordance with selected release patterns. This innovation allows for shifts that align with the driver's intentions.

Career Highlights

Wakisaka is currently employed at Aisin Aw Co., Ltd., a company known for its advancements in automotive technology. His work has contributed to the development of more efficient and responsive automatic transmission systems.

Collaborations

He has collaborated with notable coworkers, including Takayuki Kubo and Tomokazu Nomura, who have also contributed to advancements in automotive technology.

Conclusion

Shigetaka Wakisaka's contributions to automatic transmission technology through his innovative patents demonstrate his significant role in the automotive industry. His work continues to influence the development of more efficient and driver-responsive systems.