Company Filing History:
Years Active: 2022-2025
Title: The Innovative Mind of Kerrie M. Spaven
Introduction
Kerrie M. Spaven is a notable inventor based in Rochester Hills, Michigan, known for her contributions in the field of electric machinery. With a remarkable portfolio comprising eight patents, her work focuses on enhancing the efficiency and performance of multiphase motor drive systems.
Latest Patents
Among her latest inventions, two patents stand out for their innovative approaches to controlling common mode electric current in electric machines. The first patent describes a method, apparatus, and control system for operating a multiphase motor drive system, which includes a rotary electric machine and an inverter. This system incorporates an AC choke filter placed near the inverter’s output leads. It effectively determines a reference temperature for the choke filter, alongside the operating point of the electric machine. By controlling the inverter's operation based on temperature feedback, including adjustments to switching frequency and PWM type, it protects the filter by reducing the incidence of harmful switching events.
The second patent elaborates on controlling an inverter by modifying the duty cycles of PWM control signals. This innovative method aims to achieve a minimum duration between consecutive switching events, ideally reducing common mode current in the bearings of electric machines. By defining the minimum switching duration in relation to modulation indices and geometric locations near sector boundaries, it minimizes undesirable current and voltage ripples.
Career Highlights
Kerrie M. Spaven’s career is marked by her tenure at GM Global Technology Operations LLC, where she has significantly impacted the field of electric machines. Her dedication to innovation has led her to develop advanced control systems that contribute to the efficiency of electric motor drives. Kerrie's ability to blend theoretical knowledge with practical application sets her apart in the industry.
Collaborations
Throughout her career, Kerrie has collaborated with fellow inventors such as Brent S. Gagas and Brian A. Welchko, fostering a creative environment that promotes the sharing of ideas and technological progress. These partnerships enable her to expand the boundaries of invention and refine her contributions to electric machinery further.
Conclusion
Kerrie M. Spaven exemplifies the spirit of innovation through her extensive patent portfolio and impactful work at GM Global Technology Operations LLC. Her contributions to electric machinery not only advance technology but also enhance the industry's approach to efficiency and performance. As a leading figure in her field, Kerrie's work serves as an inspiration for future inventors and innovators.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.