this post was submitted on 22 Feb 2024
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[Dormant] Electric Vehicles (Moved to !electricvehicles@slrpnk.net)
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https://www.consumerreports.org/cars/car-reliability-owner-satisfaction/electric-vehicles-are-less-reliable-than-conventional-cars-a1047214174/
It is physically impossible for an EV with much fewer parts, all of which require no maintenance, to be less reliable than a gas car with highly complex parts like transmissions and differentials and combustion engines.
I’ve worked on both for a living. I’ve seen first hand which cars come into the shop and how frequently. I used problem tracking websites like Identifix daily to see common failures on all the cars I work on.
EVs rarely break.
Gas vehicles turn into paperweights if you go too long without changing the oil.
And transistors, and transformers, battery management systems, and inverters aren't complex?
Are you making fun of my degree? Power engineering is a masters-level subject at a minimum, and easily reaches into the PH.d level.
As I stated earlier. I've got an electrical engineering degree. When EV buffs talk about the "simplicity" of EVs I can't help but roll my eyes. Yall probably can't even pick out the right chips for a Li-ion BMS, or tell me the differences between LiFePo4 or NMC Li-ion is.
There's some highly technical magic going on here. MOSFETs, Power-circuits, complex inverters, microcontrollers to carefully time the movement of electricity with the movement of those magnets. There's a hell of a lot more complexity in there than people realize. And when things go wrong, there's not much else to do but replace the entire damn part, because it requires a very advanced facility to create electric motors, the chemistry behind these cells, or PCBs for those battery packs.
Moving parts wear out due to friction. The electronic parts you listed are not moving parts and rarely fail. I would know, as an automotive technician they come to me when they break.
If you really were an engineer, you would know about minimizing points of failure. And you would be able to recognize gas vehicles have exponentially more points of failure due to the amount of moving parts and sealing surfaces and combustion temperatures.
It’s easy to claim you’re an engineer on the internet. But you’re definitely not talking like an engineer.
Hear hear.
Engineers look at empirical results most of all. They don't dismiss large, 300,000+ car surveys just because they're inconvenient to your argument.
I've said my piece on the reliability of battery designs over the past 5 years. Hopefully battery engineers improve their reliability moving forward. I don't think it's going to be easy though, as the simulated models of the internals of Li-ion cells is just such a devilishly difficult problem.