Posted on 11/22/2021 2:36:00 PM PST by DUMBGRUNT
It's a user-operated fallback braking device coupled with a valve that lowers tire pressure. In cases of emergency braking, the tires will go flat to help slow the car down if the braking system fails.
If the drive-by-wire system fails, the results can be catastrophic. Ford recently had problems with six Mach-E models in Norway. The regenerative braking system kept on recuperating energy, overheating the batteries.
To work around this problem, Daimler came up with the new fallback system. It only comes into play when the actuator master unit fails or even has a simple error. In this case, the brake pedal is connected to the fallback unit, which is a basic friction system. The main new feature is the air release valve, which can reduce tire pressure.
(Excerpt) Read more at carbuzz.com ...
“Useful if you get stuck in deep-sand banks on backroads “
Yeah, those M-B drivers are heavy into that with their ego reinforcement props.
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