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Anti-lock and also Anti-slip braking system controller designed for stability enhancement of vehicle during braking and turning circumstances is presented. Using available signals, a novel structure is proposed for vehicle stability improvement encountering critical braking conditions such as braking on slippery or μ-split road surfaces. In conventional vehicles, undesired lane changes may occur due...
In road transport domain, the use of state dynamics observation/estimation and parametric identification techniques are necessary for control diagnosis. Unfortunately, the use of different methods of observations/estimation and parametric identification is not without risk. This risk can be observed in term of accumulation of errors which can be considerable and more still, on the level of the total...
In this work we derive steady-state cornering conditions for a single-track vehicle model without restricting the operation of the tires to their linear region (i.e. allowing the vehicle to drift). For each steady-state equilibrium we calculate the corresponding tire friction forces at the front and rear tires, as well as the required front steering angle and front and rear wheel longitudinal slip,...
ABS and TPMS is a technology measure enhanced automobile active safety performance. Nowadays the ABS system and the TPMS system are mutually independent and ABS system has standard configuration, while TPMS is increasingly increased and rising, so the article proposed a merged thought between the two kind of systems, which is essential to develop automobile electronic control systems integration....
An algorithm for direct yaw-moment control based on sliding-mode variable structure control theory is proposed in this paper to enhance the handling stability of an electric vehicle with two independent motors equipped at the rear axles. The controller is designed according to the two degrees-of-freedom linear vehicle model and using yaw rate and sideslip angle as the control variables. Yaw moment...
This paper proposes a vehicle stability control (VSC) scheme for a four-wheel-drive electric vehicle based on the control allocation techniques. The wheels of the electric vehicle are driven by the electric motor individually, which makes it more convenient to control tires forces and moments for stabilizing vehicle motion. But the over-actuated system is complex to control. The control allocation...
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