Hiroshi Aoyagi

Title: Hiroshi Aoyagi: Innovator in Motor Control Technologies

Introduction

Hiroshi Aoyagi is a prominent inventor based in Hitachinaka, Japan. He has made significant contributions to the field of motor control technologies, holding a total of 3 patents. His work focuses on enhancing the efficiency and stability of motor drive systems.

Latest Patents

Aoyagi's latest patents include an inverter control device, a motor drive device, and an electric power steering apparatus. The inverter control device features a current detector that monitors the current flowing through the main circuit of the first inverter. It also includes a current controller that generates a voltage command value based on the detected current and a current command. Additionally, a voltage command predictor generates a voltage command value for the second inverter based on variations in the first inverter's voltage command value. The motor drive control device employs a shutoff circuit with semiconductor relays, allowing for stable motor operation even when the drive duty ratios of phases are uneven. This innovative design ensures that the output lines of the inverter circuit are effectively connected to the motor phases, enhancing overall performance.

Career Highlights

Aoyagi has worked with notable companies such as Hitachi Automotive Systems, Ltd. and Hitachi High-Technologies Corporation. His experience in these organizations has allowed him to develop and refine his expertise in motor control technologies.

Collaborations

Some of Aoyagi's coworkers include Mitsuru Oonuma and Akira Omachi. Their collaboration has contributed to the advancement of innovative solutions in the field.

Conclusion

Hiroshi Aoyagi's contributions to motor control technologies through his patents and career achievements highlight his role as a key innovator in the industry. His work continues to influence advancements in motor drive systems and related technologies.