System Identification of the Brake Setup in the TU Delft Vehicle Test Lab

System Identification of the Brake Setup in the TU Delft Vehicle Test Lab

Busselaar, J.P.

De Vries, E.J.H. (mentor)

Mechanical, Maritime and Materials Engineering

Precision and Microsystems Engineering

2012-08-20

Testing facilities such as the TU Delft Vehicle Test Lab (VTL) are needed to provide necessary experimental data to validate and to compare the performance of several ABS controllers like the Feed-Forward Braking controller. Before testing ABS controllers with the VTL measurement system, it needs to be improved first. Earlier measurements reported in [11] showed a lack of developed braking torque due to decreased bandwidth of the measurement setup. This problem could be within the hydraulic brake line of the VTL measurement setup. Pressure dynamics results of the original situation show a significant decrease when increasing the actuating frequency. Differences in pressure dynamics are examined by replacing the original brake hose with a stainless steel braided brake hose. Sinus wave excitation measurements show a relative small increase of the maximal reaching brake pressure with the design improvements situation. Random noise excitation measurements show increased bandwidth, compared to the frequency results reported in [4] and [11]. Improvements in brake pressure dynamics are realized by using a stainless steel braided brake hose in addition with relative low varying amplitudes.

ABS

http://resolver.tudelft.nl/uuid:a0c38255-7287-4a50-8970-58c943422fbc

Student theses

master thesis

(c) 2012 Busselaar, J.P.