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this post was submitted on 26 May 2024
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Asklemmy
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The problem is that it takes a lot of computer power needed to run an EV. Battery management, power management, motor control, etc. Requiring that much computer power makes it a cheap and easy decision for car makers to just make everything part of that system.
We will get there eventually but it’s going to take a lot of people to want it (many people aren’t even considering an EV as a future car purchase), a lot of the under-the-hood stuff will have to be shoved away, and charging/battery management need to be simplified while still being robust and reliable. I don’t see it happening any time soon, ICE vehicles have only been getting more and more complex in this way. “Stick a tablet in there” is so cheap and easy and resolves so many manufacturing hurdles.
Bespoke windows controls? Nah, button on a screen. Custom entertainment system? App on a tablet. Backup camera screen? Just put in on the screen so it’s the only thing you can see while backing up.
If car makers cant get around these hurdles without incurring, previously saved, costs, the trend will continue.
How much does that take, exactly? It sounds like something a cheap microcontroller that you might find in a dumb appliance could easily do.
The thing about screens being easier than n custom physical buttons is true, though. I'm waiting for someone to put a haptic display in a car so the safety problems are somewhat ameliorated.
I am not an engineer, but I imagine keeping multiple DC motors running efficiently/in sync together while outside influences change by the second isn’t easy. Communication with a variety of EV chargers at different levels of power must take a logic system. ICE vehicles have a lot of physical parts with 120 years of engineering behind keeping things in order. There just isn’t that level of engineering for EVs, which have only really been developed during the era of microchips.
This is handled by the inverter and charging modules, some use FPGA chips others use dedicated ASICs, but it doesn't require anything wild in terms of raw compute power, mostly up to having good algorithms to handle the situations correctly. Nothing more than a modern ICE engine which needs to very precisely manage intake and exhaust cam phasing, ignition timing, intake pressure, and multiple injections per cylinder/cycle along with monitoring a multitude of sensors to keep everything in tolerance. In terms of simplicity, the first automobiles at the turn of the century were electric before the ICE caught on thanks to the advent of the electric starter and limitations in battery technology at the time.