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From: Daniel who wants to know on 13 Mar 2010 23:40

"tc" <tc(a)comcast.net> wrote in message
news:hngqfn$qau$1(a)news.eternal-september.org...
>
>
>
> If pushing gas pedal and brake pedal cancels the accelerator how was this
> guy able to melt the brakes and still be able to drive 94 mph, the cop
> said the brake lights were on and he smelled the brakes to hot.???????
>
>

Because the "override" is triggered by the pressure sensors and stroke
sensor not by the brake light switch. Below a certain pedal pressure the ICE
doesn't return to idle. It is possible to ride and cook the brakes and
maintain a constant speed in a Prius.


From: C. E. White on 14 Mar 2010 11:46

"dr_jeff" <utz(a)msu.edu> wrote in message
news:qL-dnQpZdMiifgbWnZ2dnUVZ_hednZ2d(a)giganews.com...
> Ron Peterson wrote:
>> I received the following email from my dealer:
>> "The Prius has been on the news again this week. This time it's the
>> '08 Prius sailing down the highway. The driver claimed the car was
>> accelerating on its own and couldn't be stopped.
>> It seems that ( as of today ) James Sikes has been discredited and
>> there has been plenty of posts around the web that suggest that Mr.
>> Sikes staged the entire thing. Do a quick google search of "James
>> Sikes," and you'll find plenty of reasons that he may have faked his
>> ordeal.
>
> I take issue with the part. We don't know what happened with him. I
> suspect that he will be discredited by people who know what really
> happened, but, until then, it's wait and see.
>
> The dealer's advice to beleive something because it is on the internet is
> bad advice. How about doing a quick web search of "Toyota Brakes"? Does
> the dealer want that? What's good for the gander is good for the goose.

I don't think it was just on the internet. My Sister told me about it after
she heard it on the news. Now I am not sure TV news is significantly more
responsible than the inernet, but it does lend a little more credence to the
accustaions. The original story never added up in the first place. The fact
that he had time to try to pull up the accelerator pedal but couldn't. The
fact that he never tried to shift into neutral, but had time to check the
floor mat and pull up on the pedal. The fact that the car seemed to
eventualy heal itself.

This would not be the first time a scam artist took advantage of a recall
frenzy to try and extort a few bucks from a manufacturer / insuracne
company.

Maybe the guy is not a scam artist, but I feel the smart money says he is.

http://www.foxnews.com/story/0,2933,589090,00.html?test=latestnews
http://www.dailyfinance.com/story/company-news/runaway-prius-story-fact-fraud-or-media-induced-delusion/19398218/
http://online.wsj.com/article/SB10001424052748704734304575120001542947616.html?mod=WSJ_hps_LEFTWhatsNews


Ed

From: Daniel who wants to know on 14 Mar 2010 21:11
"Elmo P. Shagnasty" <elmop(a)nastydesigns.com> wrote in message
news:elmop-BC0387.01115614032010(a)news.eternal-september.org...
> In article <hnhpcc$dhk$1(a)news.eternal-september.org>,
> "Daniel who wants to know" <me(a)here.edu> wrote:
>
>> > If pushing gas pedal and brake pedal cancels the accelerator how was
>> > this
>> > guy able to melt the brakes and still be able to drive 94 mph, the cop
>> > said the brake lights were on and he smelled the brakes to hot.???????
>> >
>> >
>>
>> Because the "override" is triggered by the pressure sensors and stroke
>> sensor not by the brake light switch. Below a certain pedal pressure the
>> ICE
>> doesn't return to idle. It is possible to ride and cook the brakes and
>> maintain a constant speed in a Prius.
>
> No, it's not. The mechanical brakes aren't engaged at that point.

They are if the HV battery is at the 82% SOC charge cutoff level and since
the incident in question happened over a period of more than 20 minutes it
is entirely possible that he power braked till the HV was force charged
"full" and the car then switched to the friction brakes.


From: Daniel who wants to know on 15 Mar 2010 18:48
"Elmo P. Shagnasty" <elmop(a)nastydesigns.com> wrote in message
news:elmop-BC0387.01115614032010(a)news.eternal-september.org...
> In article <hnhpcc$dhk$1(a)news.eternal-september.org>,
> "Daniel who wants to know" <me(a)here.edu> wrote:
>
>> > If pushing gas pedal and brake pedal cancels the accelerator how was
>> > this
>> > guy able to melt the brakes and still be able to drive 94 mph, the cop
>> > said the brake lights were on and he smelled the brakes to hot.???????
>> >
>> >
>>
>> Because the "override" is triggered by the pressure sensors and stroke
>> sensor not by the brake light switch. Below a certain pedal pressure the
>> ICE
>> doesn't return to idle. It is possible to ride and cook the brakes and
>> maintain a constant speed in a Prius.
>
> No, it's not. The mechanical brakes aren't engaged at that point.

Also see:
http://priuschat.com/forums/gen-ii-prius-main-forum/77434-possible-poll-gen-iis-test-presence-throttle-override.html


From: C. E. White on 15 Mar 2010 22:11

"Elmo P. Shagnasty" <elmop(a)nastydesigns.com> wrote in message
news:elmop-BC0387.01115614032010(a)news.eternal-september.org...
> In article <hnhpcc$dhk$1(a)news.eternal-september.org>,
> "Daniel who wants to know" <me(a)here.edu> wrote:
>
>> > If pushing gas pedal and brake pedal cancels the accelerator how was
>> > this
>> > guy able to melt the brakes and still be able to drive 94 mph, the cop
>> > said the brake lights were on and he smelled the brakes to hot.???????
>> >
>> >
>>
>> Because the "override" is triggered by the pressure sensors and stroke
>> sensor not by the brake light switch. Below a certain pedal pressure the
>> ICE
>> doesn't return to idle. It is possible to ride and cook the brakes and
>> maintain a constant speed in a Prius.
>
> No, it's not. The mechanical brakes aren't engaged at that point.

From
http://www.autonews.com/apps/pbcs.dll/article?AID=/20100315/OEM/100319941/1143 :

"Toyota said an examination of Sikes' Prius showed the car was being driven
with the brakes lightly and repeatedly applied -- some 250 times over a
30-mile stretch of highway.

"The automaker said there was no other sign of any difficulty with the
Prius. It said the accelerator pedal was found to be working normally, the
floor mat was not interfering or even touching the accelerator pedal.

"The on-board computer on the vehicle also did not register a "trouble code"
as it would have in the event that a malfunction had been detected, Toyota
said.

"Toyota said a brake override in the Prius would have cut engine power to
the vehicle had the driver applied "moderate" pressure on the brake pedal.

"Instead, Sikes appeared to have driven with the accelerator depressed and
only light pressure on the brake pedal."


Read more:
http://www.autonews.com/apps/pbcs.dll/article?AID=/20100315/OEM/100319941/1143#ixzz0iIiMTVsn

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