toyota ua [nac]

[Grant Lenahan]

Oh, yes. Its known to be over-riden in All VAg products. Apparently it is not in all Toyota products. There's also the issue of where nt he software logic tree it is implemented. I wont get into all the details, but for maximum reliability it must be a) hgih on the decision tree and b) implemented in fail-safe ( normally off) mode.

The question now is - if the over ride did network or was not implemented, what are the complications of simply grinding it to a stop with the brakes. remember cars go 60-0 in <200 feet and 0-60 in nearly 1/4 mile. but its complicatd by 1) abs 2) vacuum depete 3) brake fade.

or, of course, panic

Grant
On Feb 26, 2010, at 2:39 PM, Dave wrote:

> it is really simple to test.  get your audi and cruise along the highway at
> legal speeds, then tap the brakes whilst keeping your foot on the
> accelerator pedal.  voila, power is cut. in my rs6 if i hit the gas pedal
> again, whilst the brakes are still applied, power will resume, but in the
> allroad it will not.  hence different software in the ecu for these 2 cars.
> 
> toyota have deficient software controls in their cars.  this has been a
> conscious development decision, and is therefore symptomatic of a mindset.
> much as i hate the media when it gets misguided, i believe that this is the
> issue that is now being tracked, and one that toyoda san is also now telling
> the world about.
> 
> $0.02
> dave
> '03 rs6
> '04 allroad tdi
> 
> 
> 
> On 27/02/10 6:32 AM, "quattro-request at audifans.com"
> <quattro-request at audifans.com> wrote:
> 
>> ------------------------------
>> 
>> Date: Fri, 26 Feb 2010 11:42:01 -0500
>> 
>> Funny how much I suddenly appreciate hydraulic brake (rather than vacuum)
>> brake assist. Plus brake bomb reserve.  ;-)
>>> 
>>> On Feb 26, 2010 11:36 AM, "Grant Lenahan" <glenahan at vfemail.net> wrote:
>>> 
>>> Uh, you do it and tell us :-)
>>> 
>> That sounds like a rough experiment one way or the other
>> 
>> Grant
> 
>