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A comment on Why car wheels are so flat these days. Parent comment

Re:Why car wheels are so flat these days by KingJulian on Wednesday September 14, 2022 @07:35AM (#32835737)
I would think so too. Any parking brake has to be a fail-safe type brake which has to function in the absence of electricity. Hence, as you mentioned, purely mechanical.
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Re:Why car wheels are so flat these days by Sohcahtoa82 on Wednesday September 14, 2022 @11:30AM (#32838594)
They need to be able to remain applied without power, but the application can require power.

In my Tesla, I push a button and I can hear an electric motor engaging the brake.

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Re:Why car wheels are so flat these days by kwhitefoot on Wednesday September 14, 2022 @08:54AM (#32836472)
It only has to remain engaged, engaging it in cars with push button parking brakes requires electricity to drive a small electric motor at each wheel.
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