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Conventional electronic stability control (ESC) system uses differential braking to stabilize the yaw rate and side slip of the vehicle motion. While the roll stability is critically important, it is absent from the current ESC scheme. In this paper, an model predictive control (MPC) scheme is proposed that potentially can achieve both yaw stability and roll stability. The objective of the proposed...
This paper proposes a vehicle stability controller based on the “g−g” diagram, abbreviated as “g2-VSC”, which improves vehicle handling and dynamic response during critical driving situations. Based on a predefined operation region in the “g−g” diagram, the introduced controller determines the corrective yaw moment. Both differential braking and driving torque distribution are considered for generating...
This article deals with the design and modeling of PID regulators with two degrees of freedom for the thermal phase of the hybrid vehicle. It shows how to regulate the speed of a vehicle using a PID control with two degrees of freedom with a set point weighting. Two main objectives of this controller are tracking set points and rejecting load disturbances at the same time. A number of control algorithms...
This paper presents a robust stop-and-go control law, especially well adapted to car following scenarios in urban environments. Since many vehicle/road interaction factors (road slope, rolling resistance, aerodynamic forces) are very poorly known and measurements are quite noisy, a robust strategy is proposed within an algebraic framework. On the one hand, noisy signals will be processed in order...
The steering feel study is very important in the development of electric power steering system (EPS). This paper describes a method about how to evaluate and get the suitable steering feel when driving a vehicle equipped with EPS. The EPS steering feel subjective tests were performed to obtain objective quality parameters that correlate with subjective evaluation. After this, the paper briefly describes...
Control engineers have typically used constant inertia models to allow real-ime simulation. While this method works well for gross approximation of engine speed, the selection of the constant inertia value is important for minimizing estimation errors. The authors examine the use of a minimum acceleration error methodolgy for selecting the inertia value for the constant inertia model This will help...
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