In this study, the new traction control system (TCS) that coordinates the control of gear shifting and throttle is proposed for the automatic transmission vehicle. First, a 'single-wheel' vehicle model is established and an estimating method for optimal slip ratio is developed. Second, based on the theory of differential geometry, the model of wheel slip control system, which is non-linear and involves uncertainties, has been linearised. Then, the sliding mode control has been used in the linear system. This method guarantees efficiency and validity of the dynamic control system regarding real non-linearities, and improves the anti-interference and adaptiveness to variations of system parameters. Moreover, it makes the control system uncomplicated. At last, by means of dynamic programming, the optimal results of gear position and throttle opening are obtained for required driving torque. Numerical simulations are carried out and the results show that the vehicle with the developed control algorithm possesses better acceleration performance in contrast with the non-controlled vehicle for various types of road conditions.
A new traction control system for the vehicle with automatic transmission
Ein neues Antischlupfregelsystem für Fahrzeuge mit Automatikgetriebe
International Journal of Vehicle Design ; 62 , 2-4 ; 333-350
2013
18 Seiten, 10 Bilder, 1 Tabelle, 23 Quellen
Aufsatz (Zeitschrift)
Englisch
A new traction control system for the vehicle with automatic transmission
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