Wheel torque control is an effective means of improving vehicle handling and stability. Brake-based electronic stability programs which intervene in extreme situations to regulate vehicle behavior are the most common form of wheel torque control. With the advent of advanced driveline technologies, wheel torque control can also be achieved by the differential distribution of available drive torque to all four wheels. Similarly, in combined cornering and braking maneuvers, the applied brake input can be differentially distributed to regulate vehicle handling. This paper proposes an integrated scheme for wheel torque control that combines differential drive/brake torque distribution with the emergency braking control to regulate the vehicle yaw rate and side slip angle. A wheel torque controller was developed using a non-linear predictive control theory, 8 degree of freedom vehicle model, and non-linear tires. The simulated vehicle responses show improved vehicle handling performance.
Distribution of wheel drive/brake torque using non-linear predictive control to enhance vehicle handling
Die Verteilung von Dreh- und Bremsmoment am Fahrzeugrad mit einer nichtlinearen Prädiktivregelung zur Verbesserung der Handhabung des Fahrzeugs
IMECE, ASME International Mechanical Engineering Congress & Exposition, 2006, DSC, ASME Dynamic Systems and Control Division, 2006 ; 15346/1-15346/10
2006
10 Seiten, 15 Quellen
Conference paper
English
Integrated control of wheel drive-brake torque for vehicle-handling enhancement
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