Nidec and Renesas combine forces on E-Axle
Companies to collaborate on semiconductor solutions for next generation e-axle for EVs
Nidec and Renesas Electronics have agreed to join forces on the development of semiconductor solutions for a next-generation E-Axle (X-in-1 system) that integrates an EV drive motor and power electronics for electric vehicles (EVs).
EVs are increasingly adopting E-Axles, which integrate a motor, inverter, and gearbox (reduction gear). EVs are also integrating power electronics controls such as DC-DC converters and on-board chargers (OBCs). EV manufacturers in advanced markets such as China have developed an X-in-1 platform that integrates multiple functions, accelerating the adoption in many vehicle models.
As X-in-1 integrates multiple functions and increases in complexity, maintaining a high-level of quality in vehicles becomes challenging. Thus, developing preventive safety technologies such as diagnostic functions and failure prediction is crucial for ensuring safety and security in vehicles. To address this challenge, the two companies agreed to combine Nidec’s motor technology and Renesas’ semiconductor technology to jointly develop a highly reliable and high-performance proof of concept (PoC) for the X-in-1 system. The PoC is designed to support the industry's highest performance and efficiency as well as smaller size, light weight and lower cost for the X-in-1 system.
The companies plan to launch the first PoC by the end of 2023, which will feature a 6-in-1 system with a DC-DC converter, OBC, and power distribution unit (PDU) as well as a motor, inverter, and gearbox. As a second phase in 2024, Nidec and Renesas plan to develop a highly integrated X-in-1 PoC that incorporates a battery management system (BMS) along with other components. The first PoC will include power devices based on SiC and the second PoC will replace the DC-DC and OBC power devices with GaN, offering excellent performance in high-frequency operation, to further reduce size and cost.
Building on the PoC developed through this collaboration, Nidec plans to rapidly productise E-Axle systems to add to its portfolio and ramp up to mass production to lead the E-Axle market.
Renesas plans to develop and deliver turnkey solutions for increasingly complex X-in-1 systems by expanding the jointly developed PoC for E-Axle reference designs.
