NIDEC and Renesas Electronics Collaborate to Develop Semiconductor Solutions for E-Axle, the Next Generation Electric Drive System for Electric Vehicl

Update time : 2023-06-08 10:23:36

NIDEC and Renesas have agreed to collaborate on the development of semiconductor solutions for the next-generation E-Axle (X-in-1 system), which The next-generation E-Axle system integrates drive motors and power electronics for electric vehicles (EVs).

Today's EVs are increasingly using the E-Axle 3-in-1 electric drive system that combines a motor, inverter and gearbox into one. The trend of integrating power electronic control devices such as DC-DC converters and on-board chargers (OBCs) into electric drive systems is accelerating in order to achieve higher performance and efficiency while achieving smaller and lighter weight and lower cost, and to improve the efficiency of vehicle development. Especially in the fast-growing EV market of China, several EV manufacturers have developed a multi-functional X-in-1 platform for this purpose, which is being adopted by an increasing number of models.
As the X-in-1 combines multiple functions with increased complexity, it is becoming increasingly challenging to maintain vehicle-grade standards. As a result, the development of safety prevention technologies such as diagnostic functions and fault prediction is critical to ensuring vehicle reliability and safety. To address this challenge, the two companies have agreed to combine Nedco's motor technology with Renesas Electronics' semiconductor technology to develop a high-quality, high-performance PoC (Proof of Concept) solution for the X-in-1 system that aims to achieve industry-high levels of performance, efficiency, and small, lightweight and low-cost.
By the end of 2023, the two companies plan to launch the first six-in-one PoC, which will feature DC-DC converters, OBCs, and power distribution units on top of motors, inverters, and gearboxes. 2024, Nedco and Renesas Electronics also plan to develop a new, more integrated second X-in-1 PoC that will include a battery management system (BMS) and other components. The first PoC will feature SiC (silicon carbide) on the power device, and the second PoC will replace DC-DC and OBC power devices with GaN (gallium nitride), which has excellent high-frequency operability, to further miniaturize and reduce costs.
Based on the PoC developed in this collaboration, Nedec will rapidly productize the E-Axle system, expand the E-Axle system product lineup, and gradually build a mass production system to drive the entire E-Axle market forward.
Renesas Electronics plans to use the jointly developed PoC as a reference design for E-Axle and expand it to provide a "turnkey solution" for the development of increasingly complex X-in-1 systems.

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