sling around the term ATTESA-ETS when gloating about the technological superiority
of the Nissan Skyline GT-R
. However, not many people know what it actually is.
What is ATTESA-ETS?
"Advanced Total Traction Engineering
System for All-Electronic Torque
's technologically advanced ATTESA-ETS computer-controlled
, on demand all wheel drive
system which keeps track of wheel rotation
and the car's acceleration
. If the computer detects that the rear wheels lose traction
, it can supply torque
to the front wheels and restore it.
What does it do?
Prevents spinning out
and allows for hard, fast cornering. Normally, the car will be operating just like a rear wheel drive
car (0:100 traction). If, for any reason the rear wheels lose traction and begin to spin, the front wheels gain torque
(at 50:50 traction
, by means of a hydraulic
center limited slip differential
and a wet multiclutch
) and prevent this. As a result, the front end pulls the car
while the rear end pushes, and the car is more or less stable
. This allows the car to take hard or slippery corners without losing traction and spinning out, and allows one to go through corners at lower RPM
s, allowing for greater exit acceleration
. Since it's not an always active AWD
system, the car acts more unstable than full-time AWD cars, such as the Subaru Impreza WRX
Which cars use this system?
A great many Nissan cars use ATTESA (enough to surprise any Skyline lover).
ATTESA-ETS is commonly found in the Nissan Skyline GT-R and Nissan Pathfinder, and perhaps the Infiniti QX4. The latest generation Skyline V35's 250GT FOUR model utilizes ATTESA-ETS also. The Nissan Skyline GT-R Vspec and VspecII use a more advanced, racing-tuned system called ATTESA-ETS Pro. Also, a similar, but not as advanced ATTESA (Advanced Total Traction Engineering System for All-terrain) is employed on many Nissans and Datsuns: the Skyline GTi-R and GTS4; the a special model of the Bluebird/Altima called the SSS ATTESA; the Pulsar; and certain models of the Sentra (this is hearsay, and I can't quite confirm it). ATTESA is mechanical instead of electronic in nature.
It is unclear whether the Infiniti G35 Coupe will make use of ATTESA-ETS.