Company Filing History:
Years Active: 2023-2024
Title: Haruna Koyama: Innovator in Motor Control Technology
Introduction
Haruna Koyama is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of motor control technology, holding 2 patents that showcase her innovative spirit and technical expertise.
Latest Patents
Koyama's latest patents include a motor control device and an electric power steering device. The motor control device is designed to reduce unpleasant sensations caused by vibration or noise in motors. It features a first control unit that drives a first motor winding and a second control unit for a second motor winding. The first control unit selects the lower value between its own power supply voltage and that of the second control unit, outputting a post-selection power supply voltage. This voltage is then used to compute target d-axis current, target q-axis voltage, and target d-axis voltage.
The motor controller aims to suppress torque differences between systems, even when a DC voltage difference occurs. It includes a first controller that adjusts the first q-axis current detection value to align with the second q-axis current detection value when the first DC voltage is higher. Conversely, a second controller ensures that the second q-axis current detection value approaches the first q-axis current detection value when the second DC voltage is higher.
Career Highlights
Koyama is currently employed at Mitsubishi Electric Corporation, where she continues to develop innovative solutions in motor control technology. Her work has been instrumental in advancing the capabilities of electric power steering systems and enhancing overall motor performance.
Collaborations
Throughout her career, Koyama has collaborated with notable colleagues, including Jun Kitagawa and Tatsuya Mori. These partnerships have fostered a creative environment that encourages the exchange of ideas and technological advancements.
Conclusion
Haruna Koyama is a trailblazer in the field of motor control technology, with her patents reflecting her commitment to innovation. Her contributions continue to shape the future of electric power steering and motor systems.