05' DCCD Question
02-15-2005, 05:47 PM
#1
Registered User
Thread Starter
Join Date: Oct 2004
Posts: 84
05' DCCD Question
On my 05' STi, when the DCCD is set to auto what is the car really doing? Is it a set ratio? or constantly adjusting? Does it take input from a yaw sens? Is it active yaw control? What about the front limited slip? I read that it is an electric locker, does that adjust in auto or all the time?
Thanks,
Mike
Thanks,
Mike
02-15-2005, 06:01 PM
#2
Registered User
Join Date: Apr 2004
Location: Lusby, MD
Posts: 175
Car Info: '02 2.5 RS
I don't think there are yaw sensors, and I know there is no yaw control. I don't think the front is limited slip. It is an electronic center, and it constantly adjusts based on the other sensors (RPM, speed, etc.) with some very nice software. It is pretty smart and can usually send the power where it is needed. When it is manual, it still will adjust, but it is less reactive and tries to bias towards your setting. So if you have it set biased all the way to the rear, it will act normal till you lose traction and then it will send more power to the rear then the front regardless of slip within limits.
02-16-2005, 10:05 AM
#4
Guest
Posts: n/a
In Automatic mode, the DCCD system has a front-to-rear static distribution of 35/65. It is a variable torque distribution system which uses a planetary center differential which has an intelligent mode, which automatically adjusts the front to rear split based on input from acceleration, braking, and cornering sensors. Those sensors are: accelerator pedal position, abs system, lateral acceleration sensor (g force), rear differential temp. sensor. The front diff is a helical limited-slip type differential. It doesn't have the active yaw control (VDC) available on other models yet.
Originally Posted by roadkillSTI
On my 05' STi, when the DCCD is set to auto what is the car really doing? Is it a set ratio? or constantly adjusting? Does it take input from a yaw sens? Is it active yaw control? What about the front limited slip? I read that it is an electric locker, does that adjust in auto or all the time?
Thanks,
Mike
Thanks,
Mike
02-18-2005, 12:56 PM
#7
Dirty Redhead
iTrader: (10)
Join Date: Sep 2004
Location: Commuting? I don't know what that means anymore.
Posts: 7,204
Car Info: 05 WRX Wagon (Crystal Gray)
Originally Posted by RF8808
Check your source, the STi has only a lateral g-force sensor, but no yaw rate sensor. That sensor is only used in the VDC system.
It states yaw rate & lateral G sensor.
It's located by the console and the e-brake
02-19-2005, 12:02 PM
#9
Dirty Redhead
iTrader: (10)
Join Date: Sep 2004
Location: Commuting? I don't know what that means anymore.
Posts: 7,204
Car Info: 05 WRX Wagon (Crystal Gray)
Originally Posted by boomer
the 05 does have a yaw sensor but the 04 doesn't that is what has confused alot of people.
Thread
Thread Starter
Forum
Replies
Last Post
tbonetristy
Suby Shopping & Maintenance/Warranty
0
09-07-2006 02:06 PM
