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International Journal of Automotive Technology 2004;5(2): 123-133. |
| WHEEL SLIP CONTROL WITH MOVING SLIDING SURFACE FOR TRACTION CONTROL SYSTEM |
| K. CHUN, M. SUNWOO |
| Hanyang University |
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| ABSTRACT |
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This paper describes a robust and fast wheel slip tracking control using a moving sliding surface technique. A traction control system (TCS) is the active safety system used to prevent the wheel slipping and thus improve acceleration performance, stability and steerability on slippery roads through the engine torque and/or brake torque control. This paper presents a wheel slip control for TCS through the engine torque control. The proposed controller can track a reference input wheel slip in a predetermined time. The design strategy investigated is based on a moving sliding surface that only contains the error between the reference input wheel slip and the actual wheel slip. The used moving sliding mode was originally designed to ensure that the states remain on a sliding surface, thereby achieving robustness and eliminating chattering. The improved robustness in driving is important due to changes, such as from dry road to wet road or vice versa which always happen in working conditions. Simulations are performed to demonstrate the effectiveness of the proposed moving sliding mode controller. |
| Key Words:
TCS, Slip control, Moving sliding surface |
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