Maximus drive unit for R2 / R3 / R3X - more specs & photos from RJ

[Katsudon]

Just posted by RJ:

I love the packaging on Maximus — the drive unit for R2. It has a side mounted inverter that utilizes flat area at the end of the motor to minimize the length of bus bars, keeping them light and efficient. The large planar shape also allows all processing and power electronics to exist on a single printed circuit board. ​

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The inverter chassis closes out the oil cooled motor cavity and seamlessly routes coolant from the power modules to the drive unit’s heat exchanger with no extra parts. ​

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Overall, the inverter part count is reduced by 41% relative to Enduro and structural inverter lid saves more parts and fasteners by also serving as the drive unit mount. I love this design efficiency. ​

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[iansriv]

Brilliant!

 

[savethemanual]

What's crazy to think about, is there will be another iteration of this drive unit some day that makes it even better! Moving forward....

 

[captainjp]

“Why is Rivian wasting money on new motors when they should be building more service centers to fix panel misalignments and the rattling in my doors!”

 

[ndmiller]

I can see new Lego models in our future.....

 

[SDH]

I don't know what I'm looking at but I like it.

 

[CarGuyCarl]

ARE YOU NOT ENTERTAINED

 

[A_E]

ARE YOU NOT ENTERTAINED

It's an improvement over the Bosch and the Enduro but Lucid Electric Motors still blow these out of the water on about every metric.

 

[CarGuyCarl]

It's an improvement over the Bosch and the Enduro but Lucid Electric Motors still blow these out of the water on about every metric.

That's great for Lucid. I'm here just making fun of the name!

 

[Electrified Outdoors]

nice...I am totally drooling over here.

 

[Mellowyellow]

I wonder what temp that circuit board will be living in....

 

[godfodder0901]

It's an improvement over the Bosch and the Enduro but Lucid Electric Motors still blow these out of the water on about every metric.

And both pale in comparison to the Dark Matter...

 

[DaveA]

I guess I don't understand why these are so damn big compared to Lucid's motors...not an engineer, so I'm stewpid.

 

[TexasBob]

It's an improvement over the Bosch and the Enduro but Lucid Electric Motors still blow these out of the water on about every metric.

Hopefully Lucid will survive as a tier 1 auto supplier where the industry can benefit from its designs and does not just get absorbed into a bigger player.

 

[JMACCA]

I wonder what temp that circuit board will be living in....

That is a great observation....how involved is the replacement.

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