Autonomous vehicles have built-in fe disadvantage
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You'd think they'd be able to program them to be more fuel efficient....if a human can pulse and glide and do other such hypermiling techniques, you'd think a computer could master it and more than make up for extra power usage.
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Computer shouldn't suffer from epileptic gas pedal ankle seizures, pressing on gas and brake at the same time, and endless idling.
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There are plenty of opportunities to save power. The article doesn't broach the subject of no longer needing to run an entire computer system to monitor the engine and transmission.
I don't think it will be as big of a problem as they let on. |
They make it sound like it's not about driving finesse.
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https://www.nvidia.com/en-us/self-dr...cars/drive-px/ Quote:
edit: That's in the short term. Down the road (:)) we can apparently blow right past Moore's law with neuromorphic (brainlike) silver wire mesh single-atomic-transistor brainz: https://www.wired.com/story/brain-built-on-switches/ Quote:
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Silly article. Maybe current prototype systems consume 2-4 kW since the focus is on proof of concept and not efficiency. The production versions will be much more power efficient. Just think of the processing power in a phone, which consumes just a couple watts.
Automakers don't seem to be that concerned with electrical efficiency. Just look at how common wasteful resistors are to control blower motor speed. Those can burn 100 watts alone. |
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Intelligence ain't electrically cheap...takes power, just like a light bulb.
One way to reduce the "Watts-per-thoughts" is to revert to burst-mode computation (think of it as "pulse-n-glide" for computer processing) where all the devices do something (think, measure, store, correct, etc.) and then go into brief hibernation (sleep mode) to reduce power consumption. Then, after a preset time, they all come back awake...and repeat the process. Sorta like the difference between a power-wasting LINEAR ANALOG power supply versus a DIGITAL SWITCHING power supply. |
Human processing power accounts for approximately 1/5 of total energy use. That's about 20 watts of thinking power. Of course, some humans are more processing "efficient" than others.
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