It may be much more basic than that. Back in the days of the Audi 5000, when there was precious little software involved and accelerators were operated through cables, they had a then-famous issue with unintended acceleration. It may have been the first time this issue came to public light.
There's a long, ridiculous and embarrassing story about it that gave the TV show 60 Minutes its biggest black eye ever, but the final assessment was that the car's pedals were in a position a little unlike other cars. So when your muscle memory sent your right foot to the brake pedal, it could actually go to the accelerator for some people some times, depending. As I recall, Audi's problem inspired all the other auto manufacturers to re-evaluate the entire seat/wheel/pedal ergonomic package in their cars to ensure they wouldn't end up in Audi's position. That idiotic 60 Minutes show put a world of hurt on Audi's sales for years. It's not enough to say the driver pressed the accelerator instead of the brake. You also need to ensure your pedals are where the driver expects them to be. Maybe Tesla did that and this accident was a fluke. Or maybe this is one of those subtleties that can catch a young automaker off-guard. Who knows? If Tesla wants to make a statement, that's what they should address. Chris On Wed, Sep 28, 2016 at 2:45 PM, EVDL Administrator via EV < [email protected]> wrote: > On 28 Sep 2016 at 3:23, brucedp5 via EV wrote: > > > (Video) Another Tesla Model S crash brings innocent driver, > > Brings innocent driver WHAT? The headline makes no sense, even when you > read the story. Bloody illiterate "journalists." > > Didactic rant over. Now on to my main point. > > "In every situation where we have received a customer claim about this, the > vehicle´s diagnostic logs have confirmed that the acceleration was the > result of the driver pressing the accelerator pedal," commented Tesla .. > > Does anyone here know the details of how Tesla's logging system reads the > accelerator position? > > I'm not saying there IS a bug, just speculating here -- but in a generic > sense, which could apply to any fly-by-wire vehicle, suppose there's a bug > in the hardware or software that tells the controller how far the > accelerator is depressed. > > I know there are fail-safes; for example most or all cars have multiple > TPSes and they all have to agree before the computer acts. But as they > told > us in computer science class, it's impossible to prove correct any program > more than one page long. I can see it happening in any fly-by-wire car, > not > just a Tesla. > > If such a bug tells the vehicle computer that the accelerator is full on > when it isn't, AND the monitoring system uses that same interface, wouldn't > it also tell the monitoring system that the pedal was full on when it > isn't? > > Do we know that all these manufacturers using fly-by-wire accelerators, > including Tesla, have totally separate sensors and totally separate > software > and processors monitoring accelerator position and all the rest -- just for > record-keeping and/or reporting via mobile data connection? > > Or do they rely on the same software that's sending go/stop/turn signals to > the controller? > > David Roden - Akron, Ohio, USA > EVDL Administrator > > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > EVDL Information: http://www.evdl.org/help/ > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > Note: mail sent to "evpost" and "etpost" addresses will not > reach me. To send a private message, please obtain my > email address from the webpage http://www.evdl.org/help/ . > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Read EVAngel's EV News at http://evdl.org/evln/ > Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/ > group/NEDRA) > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20160928/386d1a97/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
