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Feedback brake distribution control for minimum pitch

Tavernini, Davide, Velenis, E and Longo, S (2017) Feedback brake distribution control for minimum pitch Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility, 55 (6). pp. 902-923.

MPC_EKF_pitch_journal.pdf - Accepted version Manuscript
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The distribution of brake forces between front and rear axles of a vehicle is typically specified such that the same level of brake force coefficient is imposed at both front and rear wheels. This condition is known as ‘ideal’ distribution and it is required to deliver the maximum vehicle deceleration and minimum braking distance. For subcritical braking conditions, the deceleration demand may be delivered by different distributions between front and rear brak- ing forces. In this research we show how to obtain the optimal distribution which minimises the pitch angle of a vehicle and hence enhances driver subjective feel during braking. A vehi- cle model including suspension geometry features is adopted. The problem of the minimum pitch brake distribution for a varying deceleration level demand is solved by means of a model predictive control technique. To address the problem of the undesirable pitch rebound caused by a full-stop of the vehicle, a second controller is designed and implemented independently from the braking distribution in use. An extended Kalman filter is designed for state esti- mation and implemented in a high fidelity environment together with the model predictive control strategy. The proposed solution is compared with the reference ‘ideal’ distribution as well as another previous feed-forward solution.

Item Type: Article
Subjects : Mechanical Engineering Science
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
Velenis, E
Longo, S
Date : 3 March 2017
DOI : 10.1080/00423114.2017.1293275
Copyright Disclaimer : This is an Accepted Manuscript of an article published by Taylor & Francis in Vehicle System Dynamics on 3 March 2017, available online:
Uncontrolled Keywords : Pitch, anti-dive, suspension geometry, brake distribution, model predictive control, heave estimation.
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 07 Feb 2017 16:56
Last Modified : 16 Jan 2019 17:11

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