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Pressure Following Strategy for Conventional Braking Control Applied to a HIL Test Bench
ISSN: 1946-3995, e-ISSN: 1946-4002
Published September 17, 2017 by SAE International in United States
Citation: Galvagno, E., Tota, A., Vigliani, A., and Velardocchia, M., "Pressure Following Strategy for Conventional Braking Control Applied to a HIL Test Bench," SAE Int. J. Passeng. Cars - Mech. Syst. 10(3):721-727, 2017, https://doi.org/10.4271/2017-01-2496.
Brake systems represent important components for passenger cars since they are strictly related to vehicle safety: Anti-lock Braking Systems (ABS) and Electronic Stability Control (ESC) are the most well-known examples. The paper is focused on the characterization of the braking hydraulic plant and on the design of a pressure following control strategy. This strategy is aimed at pursuing performances and/or comfort objectives beyond the typical safety task. The low-level logic (focus of the paper) consists of a Feedforward and Proportional Integral controller. A Hardware In the Loop (HIL) braking test bench is adopted for pressure controller validation by providing some realistic reference pressure histories evaluated by a high-level controller. Results prove that innovative control strategies can be applied to conventional braking systems for achieving targets not limited to braking issues, i.e., comfort or NVH tasks.