R3X needs o be a quad motor thoughts?

[iansriv]

100 mph in a Camry? did it make it more less beige? Friend just bought a early production Evora. I tease him every chance I get for having a Camry.

The Camry was an example. Most cars can go >100. The issue is should they. Ever consider why the top speed limit in the US is 85 but most cars are capable of well over that.

Sponsored

 

[Glembi2]

With the size being smaller than the R1 and the R2, even a measly 535hp should be lightning quick.

3 or 4 motors is just going to raise the cost, while the space for the battery is probably a fraction of the R1's.

Regular old dual motor performance for me with a 70-90KW battery should make it less expensive, brutally fast with a 300+ mile range. Add drive modes for extra fun and use all the compute and sensors to give us posi-traction or not.

I would like the option to dial in rear wheel bias. Trying to explain why oversteer in a corner helps point you straight on exit is harder than demonstrating. Same with a Scandinavian flick (hard but not impossible in an R1).

 

[Glembi2]

The Camry was an example. Most cars can go >100. The issue is should they. Ever consider why the top speed limit in the US is 85 but most cars are capable of well over that.

Time travel having been outlawed (I.e., the magic that happens at 88 mph)?

 

[UnsungZero_OldTimeAdMan]

The Camry was an example. Most cars can go >100. The issue is should they. Ever consider why the top speed limit in the US is 85 but most cars are capable of well over that.

Why? $$$$ Vehicle sales. Insurance premiums. And speeding tickets.

 

[UnsungZero_OldTimeAdMan]

I used to believe that quads were always the best option until a log discussion with @R.I.P. about what happens when a quad loses grip in 3 wheels.

Don't forget context. Those discussions with R.I.P. were in context of QM with Bosch motors. Rivian says their in-house motors give them more control and better thermal management, being oil-cooled instead of water-cooled. The new QM might not have the same limitations. Some YouTuber should do a test with rollers.

 

[dleepnw]

Overkill, not needed.

 

[ndmiller]

I would like the option to dial in rear wheel bias. Trying to explain why oversteer in a corner helps point you straight on exit is harder than demonstrating. Same with a Scandinavian flick (hard but not impossible in an R1).

Yes, drive modes and motor bias adjustments as you said. They should employ Travis Pastrana as a consultant.

 

[Dark-Fx]

My understanding is that many modern heavy cars handle a lot better than they should due to the stability control systems that torque vector using the brakes. Also I believe the quad motor R1Ts handle so all because in addition to the above, they torque vector with power in addition to brakes. So it seems like the R3X would benefit from smaller(cheaper) motors at each wheel.

But it seems like most of the posters don't see it that way. Can someone explain why this wouldn't provide better handling? Is it just theoretical and no real world benefit?

Since any BEV is going to be heavy by definition, wouldn't a quad motor appropriately sized help handling?

Don't care about insane acceleration or top speed, just the best handling.

My tri-motor R1S handles pretty good, and I don't think the front tires are the problem in a hard turn. Putting two motors up front just means you're going to overpower the tires more.

Sponsored