Tesla shares 48V architecture with other automakers to move the industry

Re:Tesla shares 48V architecture with other automakers to mo... by Turskarama on Thursday December 07, 2023 @08:13PM (#38564144)

The mechanical backup for a drive-by-wire system is different to all those other things in that it's a critical safety issue. If _anything at all_ happens to the electronics while driving then it's important that you can stop the vehicle safely. That mandates manual brakes and steering, even if they're barely effective at all without power it's a lot better than nothing.

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Re:Tesla shares 48V architecture with other automakers to mo... by dreamcompiler on Thursday December 07, 2023 @08:30PM (#38564271)

The cybertruck has two separate steering motors for redundancy. Passenger jets have been doing "x-by-wire" for decades. Properly engineered it's as reliable as mechanical linkage.

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Re:Tesla shares 48V architecture with other automakers to mo... by Turskarama on Thursday December 07, 2023 @09:32PM (#38564699)

Two motors is great and all, but that only provides motor redundancy and won't help if something happens to the electrical system.

Planes are fly by wire but that's because they literally have to be, no amount of gym time will let you move the rudder on a 737 by hand.

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Re:Tesla shares 48V architecture with other automakers to mo... by masklinn on Friday December 08, 2023 @12:32AM (#38565771)

The 737 is not fly by wire.

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Re:Tesla shares 48V architecture with other automakers to mo... by Turskarama on Friday December 08, 2023 @12:53AM (#38565864)

Ok fair enough, it is hydraulic assisted instead but for the point I'm trying to make it's essentially the same thing in so far as it requires power.

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Re:Tesla shares 48V architecture with other automakers to mo... by jsight on Thursday December 07, 2023 @10:52PM (#38565237)

I tend to agree, TBH. People bring up fly-by-wire, but even that is simpler. AFAIK, those systems aren't variable ratio the way CT is. CT literally will have different steering ratios depending on the speed, so one steering wheel angle will have different effects on the actual steering angle depending upon the speed.

How will that work in the real world? Could there be bugs? Will people get used to it or will it lead to mistakes?

I'm looking forward to getting a chance to try it, TBH.

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Re:Tesla shares 48V architecture with other automakers to mo... by hinkley on Friday December 08, 2023 @04:20AM (#38566970)

I hear it’s kind of a pain in the ass to do a front end alignment on the drive by wire systems.

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