Integration in traction inverters extends the cruising vary and improves efficiency
ROHM has introduced the adoption of energy modules outfitted with 4th technology SiC MOSFET naked chips for the traction inverters in three fashions of ZEEKR EV model from Zhejiang Geely Holding Group (Geely), a high 10 international automaker. Since 2023, these energy modules have been mass-produced and shipped from HAIMOSIC (SHANGHAI) Co., Ltd. – a three way partnership between ROHM and Zhenghai Group Co., Ltd. to Viridi E-Mobility Expertise (Ningbo) Co., Ltd, a Tier 1 producer underneath Geely.
Geely and ROHM have been collaborating since 2018, starting with technical exchanges, then later forming a strategic partnership centered on SiC energy gadgets in 2021. This led to the combination of ROHM’s SiC MOSFETs into the traction inverters of three fashions: the ZEEKR X, 009, and 001. In every of those EVs, ROHM’s energy options centered on SiC MOSFETs play a key position in extending the cruising vary and enhancing total efficiency.
ROHM is dedicated to advancing SiC expertise, with plans to launch 5th technology SiC MOSFETs in 2025 whereas accelerating market introduction of 6th and seventh technology gadgets. What’s extra, by providing SiC in varied types, together with naked chips, discrete parts, and modules, ROHM is ready to promote the widespread adoption of SiC expertise, contributing to the creation of a sustainable society.
ZEEKR Fashions Geared up with ROHM’s EcoSiC
The ZEEKR X, which includes a most output exceeding 300kW and cruising vary of greater than 400km regardless of being a compact SUV, is attracting consideration even outdoors of China because of its distinctive price efficiency. The 009 minivan options an clever cockpit and huge 140kWh battery, reaching an excellent most cruising vary of 822km. And for these in search of superior efficiency, the flagship mannequin, 001, affords a most output of over 400kW from twin motors with a spread of over 580km together with a four-wheel unbiased management system.
Market Background and ROHM’s EcoSiC
In recent times, there was a push to develop extra compact, environment friendly, light-weight electrical techniques to broaden the adoption of next-generation electrical autos (xEVs) and obtain environmental targets reminiscent of carbon neutrality. For electrical autos particularly, enhancing the effectivity of the traction inverter, a key component of the drive system, is essential for extending the cruising vary and decreasing the scale of the onboard battery, heightening expectations for SiC energy gadgets.
Because the world’s first provider to start mass manufacturing of SiC MOSFETs in 2010, ROHM continues to steer the business in SiC system expertise growth. These gadgets are actually marketed underneath the EcoSiC model, encompassing a complete lineup that features naked chips, discrete parts, and modules.
EcoSiCÂ Model
EcoSiC is a model of gadgets that make the most of silicon carbide (SiC), which is attracting consideration within the energy system subject for efficiency that surpasses silicon (Si). ROHM independently develops applied sciences important for the evolution of SiC, from wafer fabrication and manufacturing processes to packaging, and high quality management strategies. On the similar time, we’ve established an built-in manufacturing system all through the manufacturing course of, solidifying our place as a number one SiC provider.
