Discussions of the innovative design of the M3 motor wonder how Tesla has eliminated the pulsing effect of other reluctance motors. Indeed they have in forward motion but I think I have noticed it when the car starts to roll back slowly on slight grades. Sometimes the resistance stops the rearward motion. It's not a flaw, just a curiosity.
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Model 3 Reluctance Motor
- Thread starter lolder
- Start date
I may not understand your question correctly but the motor isn’t doing anything. The battery isn’t sending power to it and the slow roll isn’t enough to really generate any power back to the battery - same reason the car doesn’t always completely stop on its own..not enough regen at super slow axle rotation.
I only notice it on a barely perceptible roll back. The effect sometimes stops the car after a few barely felt "pulses". It's like a very small piston engine is being turned through compression. I can't feel it going forward. I think it's related to where the permanent magnets are in the pole pieces. They're probably not centered and are positioned to drastically reduce in one direction the characteristic pulsing of reluctance motors together with the proper switching and shaping of the current in the stator coils. This is very revolutionary design. This car is the highest tech device an individual can own other than private airliners.
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sreams
Member
Well the brakes aren't on and Tesla brake cylinders pull the pucks away from the disc. This is not a defect just an observation that the elimination of the reluctance motor pulsing was more effective in one direction of rotation.
Knightshade
Well-Known Member
Barring improper installation, rotors don't actually warp.
Common myth though.
See here-
-Warped- Brake Disc and Other Myths
