The major challenges for rollover detection are the accurate modelling of vehicle dynamics and the real-time estimation of the varied parameters. To circumvent the dependence on vehicle parameters, a novel rollover detection method based on the pulsed braking excitation is proposed. With the lateral load transfer ratio (LTR), the relationship between rollover risks and non-driven wheel rotational dynamics is deduced, which is the basis to apply braking excitation on wheels. The lateral acceleration is adopted as the first criterion to activate the rollover detection. Once the pulsed braking is applied to the non-driven wheels, the braking pressure and wheel angular speeds are measured to estimate the LTR on the non-driven axle. In case of emergency, the differential braking-based anti-rollover is implemented. Experiments were conducted on a Hardware-in-Loop bench. The results show that, the pulsed braking can be activated timely, and the LTR on the non-driven axle is estimated accurately. With the anti-rollover control, the roll stability is improved considerably.
Rollover detection and control on the non-driven axles of trucks based on pulsed braking excitation
Vehicle System Dynamics ; 56 , 12 ; 1864-1882
2018-12-02
19 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Multiple Steered Axles for Reducing the Rollover Risks of Heavy Articulated Trucks
SAE Technical Papers | 1988
|Multiple steered axles for reducing the rollover risks of heavy articulated trucks
Tema Archiv | 1988
|SAE Technical Papers | 1923
|Trucks, wheels, axles, and gearing
Engineering Index Backfile | 1916
Two-Speed Axles for Light Trucks
Kraftfahrwesen | 1978
|