4 ms·
The high speed bus should be optical.
by detourdog 2y ago
The high speed bus should be optical.
- bayindirh 2y agoThey should mandate glass fibers.
- threeseed 2y agoThunderbolt 5 can handle a dozen 4K/30fps streams off a single copper cable. The limiting factor is the available compute not bandwidth.
- eqvinox 2y agoIt's not about bandwidth; combustion engines used to be massive EMI disasters (due to ignition coils) wrecking electronic communications in their immediate vicinity. Fibre optics are plain noise immune. Not sure how much of this is needed with high power electric motors. They're also lighter than copper cables, which can in fact matter in a car (though changing interconnect types and topologies also fixes that.)
- amalcon 2y agoElectric motors are - almost by definition - giant, fast moving magnets. That will generate current in any nearby wiring, and thus interference. That said, this kind of interference is much easier to filter than the kind you'd get from 4 to 8 spark plugs firing in sequence. So it's pretty likely that this is easier to deal with.
- r00fus 2y agoAre fiber optic cables flexible and tough enough? Fiber optic seems to be good for fixed deployments but not exactly fit for a rough&tumble environment like a car.
- eqvinox 2y agoShort answer: yes. Long answer: you need to choose appropriate connectors and fibre types. There's more to fibre than just OM5 and OS2 on LC connectors. Disaster recovery agencies as well as militaries use fibre cabling in temporary camp / communication infrastructure setups too, with ruggedized cables and connectors. There's 50+ years of history and experience to source from. "Counter" answer: copper cables in cars also break.
- detourdog 2y agoCurrently to avoid Radio Control in Ukraine they have drones controlled using fiber cables. https://defence-blog.com/drones-guided-via-cables-change-battlefield-in-ukraine/ https://defence-blog.com/drones-guided-via-cables-change-bat...