On Thu, Aug 11, 2011 at 6:12 PM, Allan Streib <str...@cs.indiana.edu> wrote: > I would guess (hope?) that a completely "by-wire" brake system that > didn't have a direct hydraulic failover mode would not meet with DOT > approval. These are cars, not fighter jets. >
The DOT apparently had no problem approving drive-by-wire throttle and transmission controls with no mechanical backup when those started to become standard a few years back. Admittedly, it's more important to be able to stop than go when your electrical system malfunctions, but I still don't like it. Is the failure mode of electric power steering the same as that of a traditional hydraulic system? I would think that the increase in steering effort would be even greater since you'd be fighting the permanent magnets in the electric motor. Alex _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
