Dual motor AWD

R1S2000 · 2022-09-02T16:07:08-0400

Anyone know if dual motor AWD will have locking diff like capabilities? Or is that a quad motor thing

JimmyEV · 2022-09-02T16:30:44-0400

Hey @R1S2000. There's not a lot of info on the dual motor setup but InsideEVs mentioned this back in March:

The dual-motor setup biases more torque rearward and also features front-to-rear torque control, which will provide a high level of on-road and off-road performance, as well as towing capability.

Rivian's new motor, designed in-house, will propel the dual-motor powertrains.

Rivian Announces Dual Motor And Smaller Battery Options; Hefty Price Increases

We examine the announcement that Rivian plans to introduce dual-motor versions of the R1T and R1S as well as onerous price increases for its current offerings.

insideevs.com

CommodoreAmiga · 2022-09-02T17:41:08-0400

No one knows... But I wouldn't be surprised if it's an e-LSD and basically just pulses the brake caliper on each side, as necessary.

lefkonj · 2022-09-03T19:12:30-0400

We have had plenty of vehicles doing all wheel drive with a single motor, so you could look at any number of solutions that are out there and guess what Rivian will do. As of now we know nothing at all.

R1S2000 · 2022-09-04T14:53:05-0400

lefkonj said:
We have had plenty of vehicles doing all wheel drive with a single motor, so you could look at any number of solutions that are out there and guess what Rivian will do. As of now we know nothing at all.

Which EV does AWD with a single motor?

CommodoreAmiga · 2022-09-04T14:55:47-0400

R1S2000 said:
Which EV does AWD with a single motor?

Tesla does AWD with a single motor per axle -- which is what Rivian will be doing with the dual motor setup.

If you're referring to a single (total) motor driving all four wheels, that is also possible... That's how ICE vehicles have done AWD for a century.

R1S2000 · 2022-09-04T15:30:14-0400

CommodoreAmiga said:
Tesla does AWD with a single motor per axle -- which is what Rivian will be doing with the dual motor setup.

If you're referring to a single (total) motor driving all four wheels, that is also possible... That's how ICE vehicles have done AWD for a century.

Yes that makes sense, but will it lock and power split 50/50 to each wheel is the question.
And yes I understand it’s possible on a ICE vehicle, and if they wanted on an EV too however that would involve a driveshaft which isn’t really ideal for an EV chassis.

lefkonj · 2022-09-05T11:57:40-0400

R1S2000 said:
Which EV does AWD with a single motor?

I didn't say EV, just vehicles. My last 4 Audis have all had Quattro with a single motor, they figure it out. We get used to the EV 2 motors for 4 wheel drive but I am not sure that is how you have to do it, could be done with all sorts of solutions.

R1S2000 · 2022-09-05T19:36:42-0400

lefkonj said:
I didn't say EV, just vehicles. My last 4 Audis have all had Quattro with a single motor, they figure it out. We get used to the EV 2 motors for 4 wheel drive but I am not sure that is how you have to do it, could be done with all sorts of solutions.

Yes but highly doubt anyone will do a single motor AWD EV when it’s easier to do dual motor. The weight and packaging disadvantages of the powertrain, drivetrain losses, etc will prevent that.

CommodoreAmiga · 2022-09-05T20:12:42-0400

R1S2000 said:
Yes but highly doubt anyone will do a single motor AWD EV when it’s easier to do dual motor. The weight and packaging disadvantages of the powertrain, drivetrain losses, etc will prevent that.

Isn't the Jeep Magneto a single-electric-motor-4x4 system?

Dual motor AWD

Top Contributors this Month