News: Microelectronics
27 November 2024
Valeo and ROHM to co-develop next-gen power modules for electric motor inverters
Automotive technology firm Valeo and ROHM Semiconductor are collaborating by using their combined expertise in power electronics management to optimize next-generation power modules for electric motor inverters. As a first step, ROHM will provide its 2-in-1 silicon carbide (SiC) molded module TRCDRIVE pack to Valeo for future powertrain solutions.
Valeo is broadening access to efficient, electrified mobility across various vehicle types and markets from the smallest (ebikes), through the mainstream (passenger cars) to the biggest (eTrucks). By combining Valeo’s expertise in mechatronics, thermal management and software development with ROHM’s power modules, Valeo aims to drive the power electronics solution forward, contributing to the performance, efficiency and decarbonization of automotive systems.
Valeo and ROHM have been collaborating since 2022, initially focusing on technical exchanges aimed at improving the performance and efficiency of the motor inverter in the propulsion systems of electric vehicles (EVs) and plug-in hybrids (PHEVs). By refining power electronics, both companies aim to offer optimized cost/performance by delivering higher energy efficiency, reducing heat generation thanks to an optimized cooling and mechatronic integration, and increasing overall reliability with a SiC packaging.
“This partnership marks, for Valeo Power Division, a significant step forward in delivering advanced and high-efficient power electronics," says Xavier Dupont, CEO of Valeo’s Power Division. “Together, we aim to set new industry standards for high-voltage inverters and accelerate the transition towards more efficient and affordable electric mobility,” he adds.
“ROHM’s TRCDRIVE pack provides high power density, leading to an improved power efficiency,” says Wolfram Harnack, president of ROHM Semiconductor GmbH. “Together, we contribute to the development of highly efficient powertrains by fostering the collaboration with Valeo.”
These evolutions are all essential to supporting the growing demand for longer range, faster charging capabilities and, overall, a high-performance and an affordable inverter for BEVs and PHEVs, says ROHM.
Valeo will start supplying a first series project in early 2026. Valeo and ROHM will contribute to the improvement of efficiency and downsizing of Valeo’s next generation of xEV inverters.
Background on TRCDRIVE pack
TRCDRIVE pack is a trademark for the SiC molded module developed for traction inverter drives. This product features high power density and a unique terminal configuration – solving the key challenges of traction inverters in terms of miniaturization, higher efficiency, and fewer person-hours. Because SiC enables low-loss power conversion under high-voltage conditions, combining Valeo's component technology, casing design and thermal management expertise with ROHM's power module has a synergistic effect, says the firm.
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