Comments by "David Elliott" (@davidelliott5843) on "Steer-by-wire - how it works with ZF" video.

  1.  @briansilver9652  There’s little point in squeezing into a typical EU car park space if your monster car prevents other car doors opening on either side of you.
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  2. The Tesla steer by wire has less redundancy than an aircraft but a car can simply pull to a stop when faults arise. Aircraft can’t do that.
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  3. Unlikely. Cars today have umpteen computer boxes all doing this & that and communicating. Take one away and the whole system falls over.
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  4. Mechanical and steer by wire steering racks are basically the same. Replacement costs should be similar. The power steering motors will at least double the replacement costs. However the car has two which can work independently but usually share the load. They should be more durable over time than the heavy 12v steering systems we have in today’s ICE cars.
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  5. Panda already has electric power steering. SBW would improve stability at speed while not compromising agility at other times.
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  6. The traction battery will go dead before the 48V system battery. The latter powers the steering and the brakes. The driver will be able to stop in full control of the car.
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  7. The 48 volt electrical system has its own battery.
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  8. I drive a Fiat Panda. It’s great and goes the job, but fully steer by wire would be a great improvement.
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  9. Alfa Romeo had a passive rear steer system but any wear in the bushes and joints just messed it up.
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  10. I was also offered by Alfa Romeo in the 1990s. The snag is any wear in suspension joints really messes it up.
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  11. Electronics are the most durable part of any car. However any safety intervention such as emergency steering should be as reliable as emergency braking. There are so many edge cases of what’s already an edge case it’s hard to know how that could work.
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  12. The Ethernet gigabit data system is so fast there is effectively no latency.
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  13.  @lyfandeth  Fiat have had electric power steering at least since the Punto Mk2 (from 1999). It’s reliable and does the job. It’s old technology AND it copes with the shonky 12v electrical systems we are all lumbered with.
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  14.  @MegaWilderness  Nobody has 48 Volt electrical systems. Cars are 12V. HGVs and busses are 24V. That’s it. Twenty years ago, Ford wanted 42V but the OEM equipment suppliers were not interested, so it never happened
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