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Location-Aware Adaptive Vehicle Dynamics System: Concept Development
- Rebecca Anne Bandy - Virginia Tech ,
- Sukhwan Cho - Virginia Tech ,
- Cullen Matthews - Virginia Tech ,
- John Celli - Virginia Tech ,
- Robert Binns - Virginia Tech ,
- John Ferris - Virginia Tech ,
- Joerg Schlinkheider - Volkswagen Group of America, Inc. ,
- Marc Wimmershoff - Volkswagen Group of America, Inc.
ISSN: 1946-3995, e-ISSN: 1946-4002
Published April 01, 2014 by SAE International in United States
Citation: Bandy, R., Cho, S., Matthews, C., Celli, J. et al., "Location-Aware Adaptive Vehicle Dynamics System: Concept Development," SAE Int. J. Passeng. Cars - Mech. Syst. 7(1):58-64, 2014, https://doi.org/10.4271/2014-01-0121.
One seminal question that faces a vehicle's driver (either human or computer) is predicting the capability of the vehicle as it encounters upcoming terrain. A Location-Aware Adaptive Vehicle Dynamics (LAAVD) System is developed to assist the driver in maintaining vehicle handling capabilities through various driving maneuvers. In contrast to current active safety systems, this system is predictive rather than reactive. This work provides the conceptual groundwork for the proposed system. The LAAVD System employs a predictor-corrector method in which the driver's input commands (throttle, brake, steering) and upcoming driving environment (terrain, traffic, weather) are predicted. An Intervention Strategy uses a novel measure of handling capability, the Performance Margin, to assess the need to intervene. The driver's throttle and brake control are modulated to affect desired changes to the Performance Margin in a manner that is minimally intrusive to the driver's control authority. Real-time implementation requires the development of computationally efficient predictive models of the powertrain and vehicle dynamics. A simulation demonstrates the implementation of the system during a simple driving maneuver. The status of the project, including future work, is described.