Check Out Nidec’s Fully Integrated Traction Motor That Weighs 83 Kg

APR 30 2018 BY MARK KANE 24

Nidec presents its latest fully integrated traction motor system (E-Axle) for electric cars that combines an electric motor, reduction gear box and inverter in a single unit (above).

Nidec’s Inverter (left), Integrated traction motor and gear-box (right)

The Japanese company boasts that the new E-Axle is capable of churning out 150 kW of power and 3,900 Nm of torque (at the wheels). It weighs just 83 kg and is very compact in size.

The previous model from 2017 had separate inverter and was good only for 40-130 kW and 1,200-2,550 Nm.

In 2019, Nidec will begin production of its integrated E-Axle in China.

Related – PSA Sets Up Electric Motor Joint Venture With Nidec – Annual Traction Motor Output Of 900,000

In 2017, Nidec signed a partnership with PSA to jointly develop and produce electric motors under a joint venture in France.

“Today, Nidec Corporation, a Kyoto-based leading global manufacturer of electric motors, announced the successful development of a new fully integrated traction motor system (e-axle) comprising an electric motor, reduction gear box and inverter. This new system is the latest and most advanced iteration of the company’s e-axle developed to respond to the growing demand for automobile electrification.

In addition to integrating the inverter, a separate component in Nidec’s first e-axle design announced in September 2017, the torque output capability has also been improved; the lightweight system weighs in at only 83 kg while achieving a maximum power output of 150 kW and a maximum torque output of 3,900 Nm. Furthermore, the new fully integrated design obviates the need for wiring between components, resulting in a more compact system that increases design flexibility.

The new traction motor system covers a wide array of applications, ranging from compact cars to SUV platforms, and is compatible with AWD vehicles due to an optional clutch mechanism that can be disengaged when only two of the wheels need to be powered. Production is scheduled to begin in 2019, starting in China and later expanding globally.

Nidec was founded in Kyoto, Japan 45 years ago by four engineers and has since grown into a world-leading comprehensive motor manufacturer encompassing approximately 300 subsidiaries employing over 100,000 people throughout the world. After becoming the first company in the world to successfully commercialize a direct drive spindle motor for HDDs using brushless DC motor technology, the company branched off into the automotive motor market which now constitutes its fastest growing business segment. Nidec’s electric power steering motors, in particular, have captured the largest global market share and helped cement the company’s position in the industry.”

Categories: General


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24 Comments on "Check Out Nidec’s Fully Integrated Traction Motor That Weighs 83 Kg"

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In Imperial units: 201 HP and 2876 ft. lbs. of torque (presumably after the reduction gear).

thank you. the HP equivalent is what I was most curious about. sounds comparable to a Bolt EV(?) I wonder how the price compares given the discovery of the Bolt replacement part prices a while back.

So this will be om the new Peugeot 208 or 2008.. in 2018 or 2019.. .

Let’s just imagine this being in the iOn/C-Zero/i-MiEV.. Now that’s a world to live in!

Another Euro point of view

The torque figure makes no sense (probably 390 Nm instead of 3’900 Nm)

Tesla Roadster:

10,000Nm, which is equivalent to 7,375 pound-feet of torque at the wheels.

So, this is nothing in comparison.

Model S gets 930 Nm at the wheels.

Yes, dealing with torque this way is surely ridiculous. But, it’s the consensus that you can’t really compare EV torque with that of an ICE car. So, this is the NEW thing we are regularly getting for torque at the wheels. Apparently, if measured the same way, something like the Dodge Demon has some ungodly initial torque number that matches this, too.

“Model S gets 930 Nm at the wheels.”

That’d be a really slow S.

I wonder what the off-the-shelf price of this would be 🙂

Depends on how many you buy of course but an intresting question and what would that capability have cost and weighed 3, 5 ,7… years ago. Amazing progress!

Put it in the back, front or both with half shafts and CV joints. Thought of this a decade ago.

I thought of fighting robots and flying personal spaceships when I was a kid…

This is the REAL industrial revolution in EVs: component/subsystem design AND manufacturing expertise for PROPULSION is completely independent from the auto integrator and is commoditized world wide.

There are huge powerhouses brewing at places like Renasas and Infineon (especially since the latter’s acquisition of Int’l Rectifier). The NIDEC work is just an example of the burgeoning trend. At the heavy vehicle level this is already playing out at Borg Warner, and struggling upstarts UQM and TM4.

The vertically-integrated auto manufactrer was already fading; now it is moribund.

Right? How about a standard bolt in interface and power connectors, and maybe open source bus system so you can swap out motors to any brand you like? Like the CPUs or boards in a computer?

Not a lot to differentiate on in electric motors I think?

That obviously is not going to happen.

You think not, Willem? There are SAE standard interfaces for a huge variety of power and signal connections, both in physical characteristics and communications protocols. For the motor control and all the propulsion data SAE J1939 is already extant and will work fine. The power connection is a matter of coordination between suppliers and customers, as it has always been, with industry advocacy groups writing he standard. (Specific safety requirements already exist for high-voltage electrical connections, right down to the color of the conductors.)

Kosh’s proposal is not only possible, it’s likely.

What does the Model S motor/inverter weigh?

Model 3 weighs 89 kg but delivers more power.

How ’bout a reference to this data, pls?

But what does it cost if you buy in large quantities??

Put that on the back axle of a Promaster and I’m in bizness in the electric RV department!

another crazy idea I have is a self-propelled trailer; you hitch it up but it just follows like a trailer, keeping the hitch load at ~0lbs force.

Another crazy idea is that future trailers are self-driving cargo carts that follow you around at 10-50 cm distance wherever you drive your car. Virtual hitch.

Very impressive company, they also produce high quality OEM elevators.

would like to keep an eye on this unit, as being very compact, and low weight. The price and delivery is what will help me decide how I will make my choice for a power plant