pedal position vs throttle position..??
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Joined: Feb 2006
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pedal position vs throttle position..??
Does anyone know how closely pushing the accelerator down...equates to the throttle opening? As an example, is half way down on the accelerator really equal to throttle being half way open??
Thanks,
NL
Thanks,
NL
Drifting
Joined: Aug 2000
Posts: 1,747
Likes: 0
From: Sebring, Florida
Originally Posted by 99 torch red vette
yes, why wouldn't it?
so does pushing it all the way down, not open the throttle blade 100%?
I really hope your kidding about this post
so does pushing it all the way down, not open the throttle blade 100%?
I really hope your kidding about this post
Melting Slicks
Joined: Sep 2004
Posts: 3,488
Likes: 27
From: Long Island NY
Does the C6 shop manual show the actual curve the drive by wire follows? I know when I got my new Toyota, I found the throttle behavior to be very screwy... and sure enough, I checked the shop manual and it shows a graph of the actual throttle opening verses pedal input. The throttle curve has a big "dip" in the beginning... delayed opening. For the first 20% or so of pedal input, you get only 10% of throttle or so... and then the throttle suddenly kicks in at closer to 1:1... which gives the feeling of a "surge". Very noticeable and annoying. I hate it... just terrible. Thank god the C6 does not have such a screwy throttle curve. I find it to be just fine actually, or as good as any computer controlled throttle will ever be. Still wish it had a mechanical cable though.
I gotta find me a Toyota tuner that can fix this lousy drive by wire curve in my Toyota. And people think that cars from the land of the red sun are so great...
My C6 is surely superior to my new Toyota.
I gotta find me a Toyota tuner that can fix this lousy drive by wire curve in my Toyota. And people think that cars from the land of the red sun are so great...
My C6 is surely superior to my new Toyota.
Drifting
Joined: Aug 2000
Posts: 1,747
Likes: 0
From: Sebring, Florida
Originally Posted by Vet
Does the C6 shop manual show the actual curve the drive by wire follows? I know when I got my new Toyota, I found the throttle behavior to be very screwy... and sure enough, I checked the shop manual and it shows a graph of the actual throttle opening verses pedal input. The throttle curve has a big "dip" in the beginning... delayed opening. For the first 20% or so of pedal input, you get only 10% of throttle or so... and then the throttle suddenly kicks in at closer to 1:1... which gives the feeling of a "surge". Very noticeable and annoying. I hate it... just terrible. Thank god the C6 does not have such a screwy throttle curve. I find it to be just fine actually, or as good as any computer controlled throttle will ever be. Still wish it had a mechanical cable though.
I gotta find me a Toyota tuner that can fix this lousy drive by wire curve in my Toyota. And people think that cars from the land of the red sun are so great... My C6 is surely superior to my new Toyota.
I gotta find me a Toyota tuner that can fix this lousy drive by wire curve in my Toyota. And people think that cars from the land of the red sun are so great...
My C6 is surely superior to my new Toyota. 
Melting Slicks
Joined: Nov 2003
Posts: 3,375
Likes: 1
From: Northern CA
Originally Posted by PapaTango
He's not. The computer actually controls the opening of the TB (i.e. "drive by wire"). All we are doing when we push down the accelerator pedal is telling the computer what we want. Whether the computer agrees with us depends on all of the other sensor inputs to the computer (RPM, vehicle speed, traction control, etc, etc) I doubt it is actually 1:1 much of the time other than steady state cruising.
It's often done with mechanical linkage too but few notice it.
Team Owner
Joined: Oct 2004
Posts: 27,420
Likes: 64
From: San Clemente CA
Originally Posted by PapaTango
He's not. The computer actually controls the opening of the TB (i.e. "drive by wire"). All we are doing when we push down the accelerator pedal is telling the computer what we want. Whether the computer agrees with us depends on all of the other sensor inputs to the computer (RPM, vehicle speed, traction control, etc, etc) I doubt it is actually 1:1 much of the time other than steady state cruising.
Drifting
Joined: Jul 2000
Posts: 1,861
Likes: 1
From: Bremerton WA
St. Jude Donor '09
This may explain why my H2 (they are DBW and mine is modified per my sig) has a surge at about 30% throttle as I roll into when heading uphill. If its not linear at first and then all of a sudden goes 1:1 that might explain the funky feeling.
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