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  1. Quad motor vs locking diff

    A few points - Rivian's software right now is definitely behind where they want it to be and it's not living up to its potential right now. But I think it's potential is far higher than RIP does. It reminds me a bit of the debates between mechanical LSD and brake based electronic LSDs, where...
  2. Quad motor vs locking diff

    Fun detail of electronic locking like discussed is that there isn't anything more to break than in normal operation. The locked diff breaking things issue from 4WD vehicles is from the tires breaking and regaining traction as they slip a bit and shock loading the connections in the driveline...
  3. Quad motor vs locking diff

    You don't have to get wheel slip when you're measuring the motor position. If they're using a pure back-EMF design, they might have some trouble at exactly 0 speed, but advanced motor control ICs can measure the inductance at 0 speed as well to determine phase without encoders. With 12.6:1...
  4. Quad motor vs locking diff

    The Rivian already has encoders and knows the motor positions at all times, that's just inherent to the motor controllers. You could switch the software from torque control (which has all the problems RIP is bringing up) to speed control, where forward, no, or reverse torque is applied on a...
  5. North Carolina For Sale: R1T $84K - Glacier White + Ocean Coast 1200 Miles (Charlotte)

    However, cars & bids charges 5% on top of whatever price you see.
  6. Ohio Sold: For sale - R1T Glacier White/Ocean Coast

    I've had this for a few months and have decided to sell it on, it's an amazing truck but doesn't fit with our actual day to day use as well as our Tesla. It's an Adventure package, large pack, quad motor config, the powered tonneau cover hasn't given us any trouble. Portable charger, gear guard...





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