Tatsuo Matsumura

Title: The Innovative Contributions of Tatsuo Matsumura

Introduction

Tatsuo Matsumura, an accomplished inventor based in Atsugi, Japan, has made significant strides in the field of motor control and power steering systems. With a total of three patents to his name, Matsumura's work demonstrates a keen understanding of electrical engineering and automotive technologies.

Latest Patents

Matsumura's most recent innovations include a "Field Weakening Control Apparatus for Permanent Magnet Motor and Electric Power Steering Using Same" and a "Power Steering System". The field weakening control apparatus regulates the output voltage reference for an inverter that drives a permanent magnet synchronous motor. It operates based on d-axis and q-axis current references along with detected values, ensuring optimal performance even when the torque requested exceeds the maximum output of the motor.

The power steering system features a power cylinder that assists the steering mechanism with a hydraulic pump facilitating hydraulic pressure. The system is designed with both a first and second oil passage connecting the hydraulic pump and power cylinder. The advanced power steering control means calculates command values based on steering torque, enhancing safety and responsiveness when transitioning out of a lock end steering state.

Career Highlights

Throughout his career, Tatsuo Matsumura has been associated with notable companies, including Hitachi, Ltd. and Unisia Jecs Corporation. His contributions at these firms have led to advancements in automotive technologies, particularly pertaining to motor controls and steering systems.

Collaborations

Matsumura has worked alongside talented individuals such as Mitsuo Sasaki and Ayumu Miyajima. Their collective expertise in engineering and design has contributed significantly to the successful development of innovative technologies within their respective organizations.

Conclusion

Tatsuo Matsumura exemplifies the spirit of innovation in engineering and technology. His patents not only contribute to advancements in permanent magnet motors and power steering systems but also reflect the collaborative nature of technological development. As he continues to drive innovation, his work will undoubtedly influence future designs in the automotive industry and beyond.