Re:Congress fights to keep AM radio in cars
by giantg2 on Sunday October 06, 2024 @07:54PM
(#41761417)
I heard it was the EV vehicles drive systems, not the modern electronics. Either way, they should fix the shielding if it's really that noisy.
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And that's probably the gist of it, manufacturer find it cheaper to get rid of a legacy piece of infrastructure than "fixing the shielding" (and also support the vehicle that are already out there).
Re:Congress fights to keep AM radio in cars
by giantg2 on Monday October 07, 2024 @01:01AM
(#41762940)
The funny thing is, some EVs like the Prius had AM radios all along. It seems like some manufacturers might be taking short cuts. I guess maybe interference regulations aren't strict enough to force the shielding issue.
Re:Congress fights to keep AM radio in cars
by Workaccount2 on Monday October 07, 2024 @09:37AM
(#41765877)
A prius has an electric drive unit that is about 1/4 the power of a full EV. It also is only really used for getting the car off from stops.
Re:Congress fights to keep AM radio in cars
by ngneer on Monday October 07, 2024 @06:27AM
(#41764576)
Great analysis. This must be the crux of it, meaning the engineering tradeoff between good EMI mitigation and lower cost. Shielding is one way to go. I do not know the details here for cars, but in digital systems people tend to use spread spectrum clocking (SSC) to lessen the interference. Others on the thread seem to suggest the culprit is not the electronics, though, so that technique probably is not applicable.