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by rightbyte 2559 days ago
Nitpicking but compasses are useless in a driving EV.
3 comments
jimmaswell 2559 days ago
Why, the motor makes too much of a magnetic field? What if it corrected for the field it projects the motor to make at a given speed?
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greglindahl 2559 days ago
The display in pretty much all GPS units uses a compass to orient the little car/human thingie. I've never seen my phone map display be disoriented by accelerating in an EV.
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rightbyte 2559 days ago
Maybe they are using GPS bearing with gyro compensation?
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jaytaylor 2559 days ago
Why is that?

Claims without explanation don't move the conversation forward much.

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rightbyte 2559 days ago
Oh, ye, the current gives strong magnetic fields.

YMMV but I've done IMU measurements in a EV and the compass course changed like 90 degrees from zero to full throttle. Was a low voltage 50V EV prototype though (higher currents).

To be fair I'm not too sure how sensitive compasses are in high voltage EVs.

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