The second generation product of Nidec drive motor system "E-Axle" starts mass production
2022-10-24
The second generation product (hereinafter referred to as "Gen. 2") of the drive motor system "E-Axle" for EV of NIDECO has started mass production.

“E-Axle Ni100Ex(Gen.2)”
In April 2019, as a first tier supplier, NIDECO launched the mass production of the drive motor system "E-Axle (hereinafter referred to as" Gen. 1 ")" for EV, which integrates motor, inverter and transmission. Later, the system was mainly used by Chinese customers. By the end of September 2022, it had been installed in 13 models. (By the end of September 2022, the output has exceeded 520000 units)

On September 26, 2022, the E-Axle Gen. 2, which began mass production in Guangzhou NIDECO Automotive Drive System Co., Ltd., China, was based on the adoption of Gen by NIDECO The technical know-how such as magnetic circuit design technology and oil cooling technology accumulated from the development and mass production of No.

Features of E-Axle Gen. 2 (compared with Gen. 1 100kW model)
① Due to the adoption of the second generation product's high volume ratio winding technology, the miniaturization of the magnetic circuit and inverter has been realized, reducing the weight by 19% and increasing the torque and power density by 20%.
② The cooling performance is improved by using the newly developed 2Way oil circulation mode, and magnets that can greatly reduce heavy rare earth like Dy (dysprosium) and Tb (terbium) are used. Orderly conversion to the use of non heavy rare earth magnets *.
③ By optimizing the component configuration and adopting the newly designed transmission, the noise of the motor has been reduced by 6-8dB on the basis of the first two models of motors with excellent silence.

*Magnets (strong magnets) will lose their magnetic force when the temperature exceeds a certain temperature (Curie temperature), but the addition of dysprosium and terbium can improve their heat resistance. Due to the improvement of cooling capacity, the E-Axle Gen. 2 of NIDECO successfully lowered the temperature of the magnet, which can greatly reduce the use of dysprosium and terbium.

E-Axle Gen. 2 starts mass production from the 100kW model, and the current production lineup of 200kW, 150kW and other products will also be switched to Gen. 2.

E-Axle Gen. 2 (100kW) specification

● Peak power: [email protected], 20s

● Rated power: 38kW

● Peak torque of power output shaft: 2400Nm

● Maximum revolutions of power output shaft: 1250rpm

● Weight: 57kg

● Action voltage: 300~460V

● Overall dimension (mm): 432.8 x 408.3 x 351.3

NIDECO aims to achieve 40~45% of the global market share of EV drive motor products by 2030, and E-Axle will become the traction force to achieve this goal.

As a global comprehensive motor manufacturer with considerable strength, in the future, NIDECO will continue to develop products that make full use of light, thin, short and small technologies, high energy efficiency technologies and control technologies, and quickly provide customers with innovative solutions that help automotive development.