Tsuyo Manufacturing Secures Two Patents for Advanced EV Motor Technologies
Tsuyo Manufacturing has been granted two patents for motor technologies – a non-magnetic bridge assisted synchronous reluctance motor and a fault-tolerant five-phase interior permanent magnet motor with dual inverter control – targeting improved efficiency, reliability, and reduced rare-earth usage in EVs.
April 30, 2026. By Mrinmoy Dey
The first patent introduces a non-magnetic bridge design in synchronous reluctance motors (SynRM), significantly enhancing efficiency and torque density while reducing energy losses. The design also improves structural strength and enables a cost-effective motor architecture with optimised reliance on rare-earth materials; an increasingly critical factor in EV manufacturing, the company stated.
The second patent focuses on a fault-tolerant five-phase permanent magnet synchronous motor (PMSM) powered by a dual inverter system. Featuring an open-end winding configuration, the system enables dynamic switching between Star mode for optimised startup efficiency and Delta mode for high torque demand.
This intelligent switching capability ensures real-time adaptability, enabling improved torque control, enhanced system efficiency, and uninterrupted operation even in the event of a single-phase failure. The innovation is particularly relevant for demanding on-road and off-road EV applications where reliability is mission-critical, asserted the company.
Vijay Kumar, Founder and CEO of Tsuyo Manufacturing, said, “These patents mark a significant milestone and recognition in our mission to develop and promote Design-In-India technology for both domestic and global EV markets. At Tsuyo, we are not merely creating components; we are engineering a comprehensive design approach, crafting fundamental technology to drive sustainable and impactful innovation. Our goal is to offer a resilient powertrain system that addresses real-world performance challenges in electric mobility.”
He further added, “Our commitment to deep-tech innovation, supported by a strong in-house R&D team and robust academic collaborations, enables us to challenge conventional construction and topology in hardware. This approach allows us to create niche, modular designs that are manufacturable and scalable, delivering solutions that enhance efficiency, reliability, and cost-effectiveness for OEMs.”
These innovations were developed as part of Tsuyo's strong focus on indigenous R&D and engineering, with contributions from the Visvesvaraya National Institute of Technology (VNIT), Nagpur, as part of academia collaboration under the guidance of Prof. Ritesh Keshari and Prof. Ramsha Sachin.
please contact: contact@energetica-india.net.
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