Now, with these new electric cars you'd not have that problem...!!!
https://marginalrevolution.com/marginalrevolution/2022/01/how-does-an-electric-car-work.html
Sean requests:
Say you were trying to teach yourself, to a 99th percentile *layperson’s* level, how, say, an electric car actually worked. How would you go about doing that, precisely?
I am not sure exactly how high (or low) a standard that is, but here is what I would do.
1. Watch a few YouTube videos.
2. Read a book or two on how electric cars work, along the way finding an expert or mentor who could answer my questions.
3. If needed, read a more general book about electricity.
4. Try to explain to someone else how electric cars work. Try again.
I would recommend this same general method for many particular questions.
COMMENT:
"In a normal car, when you remove your foot from the gas you mostly coast because the
engine disconnects from the wheels via the torque converter.
In a Tesla, when you remove your foot from the gas a little bit, you are instructing the motor
to deliver less torque than the current speed needs, and so the motor turns into a generator
and it absorbs the excess torque until you slow to the new torque you've indicated.
Thus, braking is performed by requesting a negative torque (relative to current torque) and
acceleration is performed by requesting a positive torque (relative to current torque).
Tesla drivers often don't use the brake at all for a lot of driving. Just the gas pedal..."
COMMENT:
"Start with understanding how a combustion engine car works, by then the answer for electric
will be obvious..."
COMMENT:
"Tyler: I’d like you to get Elon Musk on your podcast and ask him this question (that is, how
do you learn, although I’m sure he’d also be able to answer the “how an electric car works?” question).
I was listening to the Hardcore History Addendum with Musk on engineering and warfare. It’s
shocking how deep his knowledge of, for example, the pros and cons of WWII fighter planes is.
And his knowledge of the Napoleonic Wars. And Roman technology.
He’s obviously extremely smart and an unusual personality. But he must have some sort of
approach to learning that we could all learn from..."
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