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Abstract To ensure high capacity of highways plus maximum safety requires a control of the minimum distance between cars and control speed of the cars. Highway automation entails the use of electronic sensing, communication and computation technologies to control the movement of vehicles along limited access highways. In complete automation, the vehicle’s braking, steering and throttle are all computer controlled while traveling on a highway, with the driver providing, at most, guidance in selecting the path from origin to destination and input to emergency systems. Mathematical vehicle’s model is required for closed-loop controller design. In this work unified formula for the mass flow rate of the air in the intake manifold of six-cylinder V-engine is suggested as a function of engine specifications such that engine displacement, intake manifold volume, maximum flow rate into intake manifold. An eight-state mathematical model describing vehicle power train for a mid-size passenger car is developed. The maximum percentage error between the simulated and the experimental vehicle velocity results is 1.1 %. Different neural network is tested by changing the number of neurons in the hidden layer and selecting the optimum one that corresponding to minimum training mean square error. Inverse dynamic neural network model is developed of three vehicles and general inverse dynamic neural network model is also developed to control the vehicle velocity by controlling the rate of fuel consumption. Brake subsystem is composed in the vehicle model to reduce the vehicle velocity. The whole model was simulated at different vehicle velocity and percentage brake, different neural network was trained with different number of neurons in the hidden layer and finally the optimum one was selected. Inverse brake model was integrated with both the vehicle model and vehicle inverse neural network dynamic model. The simulated results for the whole system indicate that the neural network inverse dynamic model can maintain the car velocity at constant value and adapt the required change in cruising |