The e-Axle integrates a motor, reduction gearbox, and inverter into a single unit that plays a large part in determining the driving performance and power conversion efficiency of electric vehicles. SiC MOSFETs in particular are expected to improve efficiency even further.
According to ROHM, it will carry out joint inverter development for e-Axle by participating in a ‘cooperative framework for the electric drive unit's development and production’ with companies such as Imasen and led by Mazda.
At the same time, ROHM will contribute to the development of what is being described as an ‘industry-leading’ compact, high efficiency electrical unit by developing and supplying advanced SiC power modules that provide improved performance.
Through this collaboration, ROHM will develop more competitive SiC MOSFETs and modules by working backwards from the finished vehicle to understand the performance and optimal drive method required of power semiconductors.
Besides creating new value through mutual understanding between car and device manufacturers, the three companies will also be looking to support technical innovation in the automotive field by leveraging extensive knowledge, technologies, and products garnered on a global basis.
Commenting Katsumi Azuma, Director and Senior Managing Executive Officer and COO, ROHM, said, “Through this partnership, we can develop automotive systems that contribute to decarbonisation while allowing us to gain a deeper understanding of Mazda’s goal of creating cars that are sustainable. As the role of semiconductors in the automotive market continues to grow, ROHM will strive to manufacture high quality products and contribute to the creation of a sustainable mobility society by offering a wide range of solutions.”
