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First car using Nidec’s E-Axle traction motor system unveiled

The new electric car brand Aion S—recently unveiled at Auto Guangzhou 2018 by GAC NE, GAC MOTOR’s new energy vehicle arm—will be the first line of cars to adopt Nidec’s fully integrated traction motor system (E-Axle) (earlier post). The super e-car with a driving mileage of more than 500 kilometers is slated to hit the market in 2019.


Nidec first revealed its automotive traction motor system in September 2017; the company later went on to announce the successful development of a refined design that fully integrates the reduction gearbox and inverter.

Weighing in at only 83 kg, the compact and light-weight system achieves a power output of 150 kW and a maximum torque output of 3,900 N·m. A modified 87 kg version of this basic integrated system will power the Aion S. Mass production will start in 2019 in Nidec’s new dedicated 66,000 m2 factory in the Pinghu Economic Development Zone near Shanghai.

Although the traction motor system will be launched in the Chinese market first, Nidec plans to make the product available to European automobile manufacturers as well in the near future. The company is considering building another dedicated e-axle factory in Poland, said Dr. Kazuya Hayafune, Chief Engineer and Deputy Executive General Manager of the company’s automotive division.

Nidec started out as a manufacturer of small electric motors for appliances and other machines in 1973 in Kyoto, Japan. Initially a company of only four engineers, it has now grown into a global company group employing more than 100,000 people in more than 40 countries across the world.

Major products designed and manufactured by Nidec include HDD spindle motors, of which the company has captured 85% of the global market share, and electric power steering motors for automobiles. To date, the company has acquired 60 different businesses, and many of its recent acquisitions, such as that of Honda Elesys (now Nidec Elesys) in 2014, have been focused on strengthening its capabilities in the automotive segment.

Nidec also recently launched a joint venture with French Groupe PSA to develop, manufacture and sell a separate lineup of automotive electric traction motors. (Earlier post.)



Much lighter integrated e-axel drive system would increase the efficiency (and e-range) of next generation PHEVs-BEVs and FCEVs?

Hope the all electrified vehicles manufacturers will use similar drive systems in the near future. Of course, the made in China units will be cheaper and gain a major part of the market?


3,900 N·m
That is substantial torque.

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Just for reference, the Tesla Model 3 RWD Integrated Drive Unit also with inverter weighs around 90 kg and has 211 kW power (283 hp). The Chevy Bolt Drive unit weighs 76 kg with 150 kW though it has separate power inverter, power distribution, and DC-DC converter modules.
Not sure what the BMW iX3 specs are, they should be impressive if it is based on the iFE.18 drive unit.

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3900 Nm is probably wheel torque. For example the wheel torque on the Tesla Model 3 is 3700 Nm, the motor torque is 416 Nm (307 lb-ft). Multiply the motor torque with the final drive ratio 9:1.

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