In this search, development the automatic brake system for the vehicle by using
Fuzzy controller to avoid crashing the vehicle with any body in front of it such as body
is station or move. The rated speed between the vehicle and the front body ahead of it
and the distance between them, they be intendance for controller but the outer is brake
torque which applied on to the tires. The propose controller can be sense the slipping
which occur between the tires and the road surface during the stopping and trying to
make the value of slip in the amount which give the best adhesion with road surface.
The propose controller built by use the theory of Fuzzy sets, and from the last
experience in this field it has been found the basic rules for this controller. The friction
parameters for this controller appear the request result in different circumferences and in
the same time it keep on non-slipping in the stop time point.