Tsuyo Manufacturing announced that it has been granted two patents related to electric vehicle motor technologies. The developments are part of the company’s ongoing work in electric powertrain systems.
The two patents are for:
- A non-magnetic bridge assisted synchronous reluctance motor
- A fault-tolerant five-phase interior permanent magnet motor with dual inverter control
Focus on motor efficiency and material use
The synchronous reluctance motor design uses a non-magnetic bridge structure. According to the company, this approach improves torque output and efficiency while reducing energy losses. It also lowers dependence on rare-earth materials, which are commonly used in EV motors.
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Fault-tolerant motor system
The second patent relates to a five-phase permanent magnet motor designed with a dual inverter system. It uses an open-end winding setup that allows switching between two operating modes:
- Star mode for startup conditions
- Delta mode for higher torque requirements
This configuration is intended to maintain motor operation in case of a single-phase failure and improve overall system reliability.
Academic collaboration and R&D work
The technologies were developed in collaboration with the Visvesvaraya National Institute of Technology, Nagpur. The project involved inputs from Prof. Ritesh Keshari and Prof. Ramsha Sachin as part of academic research engagement.
Tsuyo Manufacturing stated that it is working on multiple patent filings covering motor design, materials, embedded systems, and engineering processes.
Deployment and industry presence
The company reports deployment of over 300,000 powertrains across different electric mobility segments. Its systems are used in applications such as three-wheelers, four-wheelers, off-road vehicles, and industrial equipment. Tsuyo works with more than 25 original equipment manufacturers (OEMs).
Expansion plans
Tsuyo Manufacturing has also received approval from the Government of Karnataka for a manufacturing expansion. The planned facility is expected to support increased production of EV powertrain components and align with the PMeDrive initiative.
Elctrik Speaks
The patent filings indicate continued development activity in EV motor technologies, particularly in areas such as efficiency, cost optimisation, and system reliability. Such efforts are relevant for reducing import dependence and supporting local manufacturing in the EV sector.
Vijay Kumar, Founder & CEO of Tsuyo Manufacturing, commented on the announcement, stating, "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. 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. We take pride in being India's fastest research and engineering startup, consistently advancing our research from TRL1 to TRL9 levels. As India moves towards electrification, we are proud to contribute to the 'Design in India, for the world' vision while expanding our IP portfolio with numerous innovations in the pipeline."