Influence of Active Chassis Systems on Vehicle Propensity to Maneuver-Induced Rollovers Delphi Automotive Systems

Format:

Book

Conference/Event

Author/Creator:

Hac, Aleksander, author.

Conference Name:

SAE 2002 World Congress & Exhibition (2002-03-04 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2002

Summary:

The purpose of this paper is to evaluate through simulations the effects of active chassis systems on vehicle propensity to rollover caused by aggressive handling maneuvers. A 16 degree-of-freedom computer model of a full vehicle is used for this purpose. It includes models of active chassis systems and the associated control algorithms, and allows for simulation of vehicle dynamic behavior under large roll angles. The controllable chassis systems considered in this investigation are active rear steer, brake based vehicle stability enhancement system and active anti-roll bar. The maneuvers used in simulation are the double lane change and the fishhook maneuvers with increasing steering amplitudes. The vehicle represents a midsize SUV with a marginal static stability factor of 1.09 and aggressive tires. The results of simulations demonstrate that the uncontrolled vehicle rolls over in both maneuvers when the steering angle is sufficiently large. Each active control system significantly increases rollover stability - either the vehicle cannot be rolled over regardless of the magnitude of the steering angle, or the amplitude of the steering angle necessary to rollover the vehicle is markedly increased

Notes:

Vendor supplied data

Publisher Number:

2002-01-0967

Access Restriction:

Restricted for use by site license