Title: Active handling enhancement for chassis control systems

Authors: Hsien-Heng Chen, Ashok Chandy

Addresses: Delphi Chassis, 12501 E. Grand River, Brighton, MI, 48116, USA. ' Delphi Steering, 3900 Holland Road, Saginaw, MI 48601, USA

Abstract: Active steering control is the next step for vehicle safety. Since steering control is continuously active without dead-bands, it helps to maintain predictable response before ESC brake systems intervene. A unified Dynamic Feed-Forward (DFF) algorithm is developed for chassis control systems with a tunable second-order reference model. The resulting control law is third order or sixth order when the tyre dynamics are included. The use of a reference model makes it readily compatible with the ESC systems. A validated vehicle dynamic model is used to study the handling and rollover benefits of DFF applied to steering and braking systems.

Keywords: chassis control; handling enhancement; vehicle dynamics; vehicle control; stability control; active steering control; vehicle safety; brake stability; feedforward control; reference model; dynamic modelling; vehicle rollover.

DOI: 10.1504/IJVAS.2007.014930

International Journal of Vehicle Autonomous Systems, 2007 Vol.5 No.1/2, pp.79 - 94

Available online: 20 Aug 2007 *

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