We have developed an automatic braking control system for automobiles
applying a three-layer neural network model. This system enables the v
ehicle to decelerate smoothly and to stop at the specified position be
hind the vehicle ahead. This paper focuses on the use of the three-lay
er neural network model in the automatic braking control system. Becau
se vehicle dynamics is varied by the variations in road conditions or
vehicle characteristics, it cannot be represented accurately by mathem
atical models. According to this reason, the conventional control meth
ods, such as proportional integrative derivative (PID) control, cannot
achieve satisfactory control performance. Therefore, we have construc
ted the neural network adaptive control system based on the feedback e
rror learning method. This learning method enables the system to adapt
to the changes in road grade and vehicle weight without using any spe
cific sensors. Experimental results show satisfactory control performa
nce and reveal that the neural network adaptive control system based o
n the feedback error learning method is available for the automatic br
aking control system.