4 ms·

And cabling for each of them. At least: Y * (1 cable + 2 plugs + 1 port at the controller + clips). Wire Harnesses for modern cars are seriously complicated a

And cabling for each of them. At least: Y * (1 cable + 2 plugs + 1 port at the controller + clips). Wire Harnesses for modern cars are seriously complicated affairs[0]. And even using more modern variants they still need to be installed manually. [0] https://www.carscoops.com/2022/05/carmakers-are-rushing-to-adopt-simpler-modular-wiring-harnesses/ https://www.carscoops.com/2022/05/carmakers-are-rushing-to-a...

malermeister 3y ago
Why is Zigbee or similar not an option there? I have a whole bunch of physical controls all around my house without running a single wire, why can't car manufacturers do the same?
- kubik369 3y ago
  Think about it a bit more. You still need wires for power, you can’t be swapping batteries in car accessories as you can in your home. If you are already running wires for power, running 1-2 more for data is not that problematic, you are already running the harness. In addition, you don’t want the latency and unreliability of wireless solutions in a car. It might be ok in your home, but not in a pretty rough environment such as your car. It would also be much more expensive both hardware and software wise, not even mentioning the potential bugs and such.
  - arlcode 3y ago
    Exactly. The HW is pretty cheap but no HW is cheaper. It has a ripple effect for other parts. Button for everybody: More expensive and can't be sold as a package Button optional: No Button -> Hole in plastic molded cover -> Either need different molds/parts or an additional preparation step removing the plastic covering the hole. Car manufacturing is traditionally very low margin business and extremely streamlined. Sooner or later EVs will also end up in the same situation
synecdoche 3y ago
No need for wiring from the controller. A distributed IO breakout box at each cluster site, with CAN communication in between, would suffice.

malermeister 3y ago

Why is Zigbee or similar not an option there? I have a whole bunch of physical controls all around my house without running a single wire, why can't car manufacturers do the same?

kubik369 3y ago
Think about it a bit more. You still need wires for power, you can’t be swapping batteries in car accessories as you can in your home. If you are already running wires for power, running 1-2 more for data is not that problematic, you are already running the harness. In addition, you don’t want the latency and unreliability of wireless solutions in a car. It might be ok in your home, but not in a pretty rough environment such as your car. It would also be much more expensive both hardware and software wise, not even mentioning the potential bugs and such.
- arlcode 3y ago
  Exactly. The HW is pretty cheap but no HW is cheaper. It has a ripple effect for other parts. Button for everybody: More expensive and can't be sold as a package Button optional: No Button -> Hole in plastic molded cover -> Either need different molds/parts or an additional preparation step removing the plastic covering the hole. Car manufacturing is traditionally very low margin business and extremely streamlined. Sooner or later EVs will also end up in the same situation

synecdoche 3y ago

No need for wiring from the controller. A distributed IO breakout box at each cluster site, with CAN communication in between, would suffice.