Atsushi Yoshitake

Title: Atsushi Yoshitake: Innovator in Power Steering Technology

Introduction

Atsushi Yoshitake is a prominent inventor based in Ebina, Japan. He has made significant contributions to the field of automotive technology, particularly in power steering systems. With a total of 6 patents to his name, Yoshitake's work has had a lasting impact on vehicle safety and performance.

Latest Patents

Yoshitake's latest patents include a power steering apparatus and a controller for the power steering apparatus. In his innovative power steering system, a torque sensor obtains first and second rotation angles, while a steering angle sensor acquires third and fourth rotation angles. The controller features a first absolute rotation angle calculation section, a second absolute rotation angle calculation section, and an abnormality detection section. The first section calculates a first absolute rotation angle as an estimate of the steering wheel's absolute rotation angle based on the first and third rotation angles. The second section calculates a second absolute rotation angle based on the third and fourth rotation angles. The abnormality detection section identifies any discrepancies between the two calculated angles, ensuring the system's reliability.

In another aspect of his power steering system, Yoshitake has developed a method to detect abnormalities in phase open relays. This system includes an abnormality monitor section that outputs vector control command signals to supply only a d-axis current in a positive direction toward the motor. It determines abnormalities in at least one of the phase open relays by detecting current values flowing into an inverter. This innovative approach enhances the safety and functionality of power steering systems.

Career Highlights

Yoshitake has worked with notable companies in the automotive industry, including Hitachi Automotive Systems Steering, Ltd. and Hitachi Automotive Systems, Ltd. His experience in these organizations has allowed him to refine his expertise in power steering technology and contribute to advancements in the field.

Collaborations

Throughout his career, Yoshitake has collaborated with talented individuals such as Kohtaro Shiino and Takahiro Mori. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Atsushi Yoshitake is a distinguished inventor whose work in power steering technology has significantly advanced automotive safety and performance. His innovative patents and collaborations reflect his commitment to excellence in engineering.