Tesla Model 3's motor - The Brilliant Engineering behind it on HackerTube: recommended by 2 Hacker News commenters across 2 separate months, 2020–2022.
explainer · intermediate · evergreen
An engineering explainer on why Tesla abandoned the induction motor for the Model 3 and used an IPM-SynRM design. It covers the reluctance torque and permanent magnet principles behind the choice.
HN recommends it as a clear explanation of the Model 3 motor and reluctance rotor design.
“This youtube video describes it rather well, and I'd recommend giving it a watch”
5 Hacker News comments link this video. Each one links back to its thread.
A tesla Model 3 motor already is partially a reluctance motor. This youtube video describes it rather well, and I'd recommend giving it a watch [1]. Notice the air gaps - thats the reluctance part of the rotor. [1]: ▶ this video
in “A 17-year-old designed a novel synchronous reluctance motor” · View on HN
Youtube has recommended a few videos from the channel Learn Engineering that have been surprisingly good. For example: ▶ this video
in “1937 film explains how a car differential works” · View on HN
> What sort of motor do you think a Tesla model 3 uses, for example? IPM-SynRM ▶ this video They went into a lot of effort to optimize it over RPM range. If you want to make a point use real motor curves at least. Your graph suggests it goes to sub 20% efficiencies at low speed which is completely false and would suggests way higher gains from gearbox than in reality. Hell, it would suggest ICE like performance, it's THAT bad.
in “The stick shift might survive the electric revolution” · View on HN
> A tesla Model 3 motor already is partially a reluctance motor. This youtube video describes it rather well, and I'd recommend giving it a watch [1]. Notice the air gaps - thats the reluctance part of the rotor. > [1]: ▶ this video I dont think he's using air gaps? "Instead of using air gaps, Sansone thought he could incorporate another magnetic field into a motor."
in “A 17-year-old designed a novel synchronous reluctance motor” · View on HN
> The engineers of Tesla motor's shocked everyone when they abandoned the versatile induction motor in Model 3 cars. They used a totally different motor called IPM-SynRM. Let's understand why the Tesla engineers made this crucial design change. ▶ this video
in “Lithium battery costs have fallen by 98% in three decades” · View on HN