Det här är ju oxå en variant
Evolution VII retains the Active Yaw Control traction enhancement system that has
fully proven its worth since its introduction in Evolution IV in 1996. AYC uses an
electronically controlled hydraulically actuated system to optimally control yaw
moment in the body by regulating torque split in the rear differential to create a
torque differential in the right and left rear wheels. This allows the vehicle to better
trace the line chosen by the driver through corners, spreads tire load more evenly
and also improves standing start and acceleration over slippery surfaces. In
Evolution VII, integrated control of the ACD and AYC systems realizes a dramatic
improvement in the balance between stearing response and traction in high G
cornering.
För övrigt det enda elektroniska hjälpmedlet som finns i dom bilarna förutom ABS (som oxå jobbar med AYCn)
För dom som inte e så hemma på japanska bilar så är Det mitsubishi Evolution det syftar på.
Lite mer info:
on Evolution VII, control of the ACD and AYC
systems is integrated by computer. ACD control is
based on:
(1) A feedback control strategy to
improve vehicle stability by keeping actual body
attitude as close as possible to pre-determined
attitudes as derived from steering angle and vehicle
speed and,
(2) A feedforward control strategy that
responds rapidly to driver acceleration and
deceleration actions. By combining these strategies
in an optimal manner, ACD achieves the
outstanding stability of a full-time 4WD vehicle
and enhances steering response while realizing the
superior traction of locked up 4-wheel drive.
In the integrated system, ACD feedback and
feedforward information is transmitted to the AYC
control system using parameters in such a way that
the larger the ACD differential limiting force is, the
larger the yaw moment generated by the AYC
system.
This precise and integrated control operates so
that, for example when accelerating out of a corner,
When accelerating through a corner, AYC
reduces understeer by transferring torque to the
outer wheel; when decelerating in a corner,
AYC enhances stability by transferring torque to
the inner wheel. AYC also improves traction on
surfaces with low or split friction coefficients
and has fully proven its worth since it was first
introduced in Evolution IV.
For Evolution VII, all parts of the torque
transfer mechanism of rear differential have
been uprated to match the increase in engine
Evolution of Mitsubishi 4WD system
the ACD enhances traction and the AYC enhances
steering response and cornering performance. And
because of its seamless nature, the driver is
unaware of the integrated system as it operates to
improve acceleration and handling more than the
ACD and AYC systems would if they were
operating independently.
För dom som vill se bilder osv så finns det en broshyr i pdf form på
http://www.evoclub.nu/filarkiv/evo7.pdf
står väl närmast att söka i vilken biltillverkare som levererar dem?
Magnus Thomé
)
Som tur var körde han inte så fort från början så det gick bra. 
