The article mentions that Tesla is kind of justifying the behavior by saying it is based on energy consumption and some other bullshit. The expectation according to SAE, which I find very interesting, is to be in a range of +/- 4% and for GPS enabled odometers+/- 2.5%, Tesla is missing the mark for at least 36%.
SavageCreation@lemmy.world 1 month ago
So we traded a proven, reliable, physical laws based method (wheel roll) in favor of unreliable electronics. Nice.
Duamerthrax@lemmy.world 1 month ago
You’ve summed up every aspect of the Tesla. Especially now that real car companies are taking EVs seriously.
cantstopthesignal@sh.itjust.works 1 month ago
Reinventing the wheel.
Duamerthrax@lemmy.world 1 month ago
Literally. And it sucks. There’s reasons they don’t do it like this anymore.
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spankmonkey@lemmy.world 1 month ago
But shittier!
pelespirit@sh.itjust.works 1 month ago
That makes your warranty expire faster. It’s not in the users favor.
Croquette@sh.itjust.works 1 month ago
Electronics can be extremely reliable, but Tesla chose to be sleezebags.
Mostly_Gristle@lemmy.world 1 month ago
I think that pretty much sums up the entire ethos of Silicon Valley these days.
SavageCreation@lemmy.world 1 month ago
DISRUPT THE MARKETTTTTTT
Michal@programming.dev 1 month ago
It’s not really that reliable as it it will depend on the diameter of the wheels that can vary with pressure, wear, and and actual tyre size.
A better method may be a sensor like the one used in optical mice.
AugustWest@lemm.ee 1 month ago
I have test all three methods. GPS is the best, but it has drop outs. You can add an inertial gyro system to compensate, but that becomes sloppy the longer it goes without GPS.
The tire method has a lot of variances, but the measure at the transmission is often worse.
gamer@lemm.ee 1 month ago
So if I replace the wheels on my car with monster truck wheels, I’ll be able to cheat the odometer?
wewbull@feddit.uk 1 month ago
…but what are we actually trying to measure here? The miles travelled, or the wear and tear that’s caused by the wheels spinning?
Croquette@sh.itjust.works 1 month ago
Mileage by counting the number of rotation of the wheel.
The mileage is a measurement to give an idea of the wear, combined with other information to give a holistic view of the state of the car.
SavageCreation@lemmy.world 1 month ago
Fair, and thinking about it it doesn’t account for unnecessary wheelspin
hovercat@lemmy.blahaj.zone 1 month ago
It absolutely does. Typically, all 4 wheel speed sensors are polled and averaged, so unless you’re doing lots of extended 4 wheel burnouts, you’re talking an incredibly small margin of additional error.