Effect of hydraulic brake pipe inner diameter on vehicle dynamics.

During the operation of the brakes the behavior of the brake fluid in the brake piping is one element that has a large effect on feel and on transient pressure characteristics. In the present study investigates the effect of fitting a brake pipe with different inner diameters to each wheel at the rear axle on the brake performance and vehicle dynamics. Theoretical analysis and road tests were conducted and applied on a Fiat 128 vehicle to investigate the changes in brake efficiency and brake force balance. The theoretical and experimental results showed the improvement of the car brake efficiency and brake balance when fitting a brake pipe with the same inner diameter (without orifice) for each wheel. [ABSTRACT FROM AUTHOR]