But when an electric motor misfires, it misfires "on all cylinders" and the rotor has very low inertia so it can decelerate very quickly, creating significant shocks thru the geartrain lash. We've all heard electric motors play music by way of rapid +/- torque oscillations, imagine what 300HP "music" could do to the motor and/or geartrain. The loads aren't nearly as high as a misfiring cylinder, but they are incredibly fast and can do a lot of damage.
A typical 6 cylinder fossil car might drift with the tires running around 40mph at 6000rpm with a 12:1 gear ratio, or 8 ignitions per second ,per cylinder (6000RPM / 2 revolutions per firing / 6 cylinders / 60 seconds per minute).
A 6 pole Model 3 could run the tires at 162mph with a 9.0363:1 ratio and a motor speed of 18,500 RPM or 5,550 commutations per second (18500RPM * 6 poles * 3 phases / 60 seconds per minute).
So you're claiming a "misfire" on an electric motor is applying *exactly* full reverse current at *exactly* the wrong time and thus producing a full 300HP in the wrong direction? Despite you acknowledging that there are 6 poles and 3 phases in the motor, and a few degrees of error won't do this. Meanwhile, a few degrees of error on an ICE does cause knock and excessive rod stress even without knock.
And yeah, let's assume the ICE car drifts at 40 MPH wheel speed, but let's assume the Model 3 does it at 162 MPH, when if you have ever drifted a Model 3 and had it error out, you know it's the exact reverse and the wheel speed is very limited and well controlled.
And you flat out don't get what is needed for timing- You don't just fire a spark plug or fuel injector once per 2 revolutions. You have to fire them down to less than 1 degree of accuracy, and for GDI, you have to have under a tenth of a millisecond control of the injector pulse width. You said that an EV needs much more precise
TIMING than an ICE, but that's flat out not true. The ICE needs more accurate angular control than an EV- like you said, the EV only has 6 poles, so 1 degree of error isn't that big a deal. Yet on a GDI ICE, that matters a LOT. So yeah, an EV runs 2X the RPM, but needs less accuracy. It's a wash.
Here's the processor in a Model 3 inverter:
TI’s TMS320F28377S is a C2000™ 32-bit MCU with 400 MIPS, 1xCPU, 1xCLA, FPU, TMU, 1024 KB flash, EMIF, 16b ADC. Find parameters, ordering and quality information
www.ti.com
It's a 200MHz, single core, that is about $5 in automotive volumes.
Here's an gas engine CPU from 2015:
MPC5777C 32-bit MCUs target high-end automotive and industrial powertrain applications for advanced engine control, functional safety, and security.
www.nxp.com
300 MHz, dual core, with a safety critical 3rd core. About $15.
You realize you can buy a $30 hobby electric speed controller that will easily support a 30K+ RPM model aircraft motor? If it needs such amazing timing control and so much more processing than an ICE engine, this wouldn't be posible.
So you could imagine how a change in RPM between crank angle readings could result in a slight error in the RPM estimate, and a car that needs to "fire" 5,550 times per second might be more sensitive to this than one that just lazily ignites a slow burning campfire maybe 8 times per second.
Again, totally misleading. The number of events per second is irrelevant. The accuracy of when they need to occur is all the matters. Those 8 injection and spark events need just as accurate of timing as the 5Khz commutations. You can't just arbitrarily fire 8 times in that second and have a working engine.