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The Mercedes ABC (Active Body Control) system is good. But if you watch the video - this one is amazing. The Mercedes system used hydraulics. If the Bose syste

by chiph 8y ago

The Mercedes ABC (Active Body Control) system is good. But if you watch the video - this one is amazing. The Mercedes system used hydraulics. If the Bose system works the same way their truck seat does (the "Bose Ride") then it's run by a combination of pneumatic & electromagnets, and I'd be curious how they get enough current to run it. ABC: https://www.youtube.com/watch?v=clyUmA5lRcg https://www.youtube.com/watch?v=clyUmA5lRcg Bose suspension: https://www.youtube.com/watch?v=q8sVDenpPOE https://www.youtube.com/watch?v=q8sVDenpPOE Bose Ride: https://www.youtube.com/watch?v=T_G9GCpWAcM https://www.youtube.com/watch?v=T_G9GCpWAcM

samatman 8y ago
I'm guessing that's what makes it viable. If it's going into future vehicles, well, a number of those are going to have plenty of current. That suspension would make a pretty sweet market differentiator for electric cars. Would go a long way toward making up for range anxiety.
- chiph 8y ago
  There's been talk of switching to 48v batteries in cars (for the starter and accessory circuits, not for the EV circuits which already run at much higher voltages). AFAIK, only some Class B RV makers are using them for their house batteries.
twelvechairs 8y ago
Mercedes ABC is actually the same as Citroen's much earlier hydropneumatic suspension. Its been around since WWII and in major production cars since at least the 1950s (the great Citroen DS)
- emmelaich 8y ago
  Is that similar to the Austin 1800 and Morris 1100 hydrolastic suspension? "it floats on fluid! They were great cars to drive. http://www.elevenhundred.com/hydro.php http://www.elevenhundred.com/hydro.php https://en.wikipedia.org/wiki/BMC_ADO17 https://en.wikipedia.org/wiki/BMC_ADO17
jore 8y ago
I think the updated version is called Magic Body Control [1] and the videos show an impressive behavior. But when this tech came out a couple of years ago, Autobild have tested it thoroughly and said that it works well on big bumps, but on everyday small street bumps and cracks that you mostly see on the streets, there was no effect. And it costs additional ~10k EUR... [1]: https://youtu.be/ScpgI1w5F6A https://youtu.be/ScpgI1w5F6A

by chiph 8y ago

samatman 8y ago

I'm guessing that's what makes it viable. If it's going into future vehicles, well, a number of those are going to have plenty of current. That suspension would make a pretty sweet market differentiator for electric cars. Would go a long way toward making up for range anxiety.

chiph 8y ago
There's been talk of switching to 48v batteries in cars (for the starter and accessory circuits, not for the EV circuits which already run at much higher voltages). AFAIK, only some Class B RV makers are using them for their house batteries.

twelvechairs 8y ago

Mercedes ABC is actually the same as Citroen's much earlier hydropneumatic suspension. Its been around since WWII and in major production cars since at least the 1950s (the great Citroen DS)

emmelaich 8y ago
Is that similar to the Austin 1800 and Morris 1100 hydrolastic suspension? "it floats on fluid! They were great cars to drive. http://www.elevenhundred.com/hydro.php http://www.elevenhundred.com/hydro.php https://en.wikipedia.org/wiki/BMC_ADO17 https://en.wikipedia.org/wiki/BMC_ADO17

jore 8y ago

I think the updated version is called Magic Body Control [1] and the videos show an impressive behavior. But when this tech came out a couple of years ago, Autobild have tested it thoroughly and said that it works well on big bumps, but on everyday small street bumps and cracks that you mostly see on the streets, there was no effect. And it costs additional ~10k EUR... [1]: https://youtu.be/ScpgI1w5F6A https://youtu.be/ScpgI1w5F6A