4 ms·
> What is ethernet bringing to the picture? Over 3 orders of magnitude faster datarates. CAN FD: up to 5Mb/s Automotive Ethernet: up to 10 Gb/s
by KK7NIL 2y ago
> What is ethernet bringing to the picture?
Over 3 orders of magnitude faster datarates.
CAN FD: up to 5Mb/s
Automotive Ethernet: up to 10 Gb/s
- gregoriol 2y agoWhy would you need 10 Gb/s speeds in a car
- the_mitsuhiko 2y agoWhy would you not? Tesla is sending even the infortainment data stream through that bus. It's incredibly helpful having all data travel on a singular wire because you can tap in at one point and read it all out. Makes the entire system significantly easier to debug, understand and develop against.
- gregoriol 2y agoAnd hack/steal, right?
- vardump 2y ago10 Gb/s is not all that much for cameras. Enough for one 60 Hz 4k 14-bit depth camera transmitting raw bayer data. 60 Hz * 3840 * 2160 * 14bit is 6.96 Gbps.
- dpeckett 2y agoIt's a good thing we invented video compression and hardware codecs/encoders a long time ago. What you'll actually be sending is a high bitrate mpeg stream, probably 54Mbps or thereabouts, you could probably fit 50x camera streams on a shared 10Gbps bus.
- nunez 2y agoFSD will benefit from high-resolution (4K or above) camera feeds (for things like reading signs and detecting small obstacles). You can do this in a 10Gbps network and have tons of headroom for every other function the car will perform.