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This paper presents a lateral stability study of a vehicle fitted with a hydraulically interconnected suspension (HIS) system. The HIS can decouple suspension modes and provides both stiffness and damping to suspension roll mode without stiffing its warp mode. The performance of the HIS in improving vehicle roll stability has been intensively studied in the past decade, while only minimal efforts...
A new active Hydraulically Interconnected Suspension (HIS) has been developed to compensate the limitations of conventional active suspensions such as expensive cost and high energy consumption. In this paper, the mechanism of proposed active HIS system has been briefly introduced. Fuzzy Logic Control, Fuzzy proportional-integral-derivative (PID) control and optimal linear quadratic regulator (LQR)...
The aim of this research is to provide an affordable active suspension system which can be widely applied to economical vehicles. In this paper, after giving a brief description of the mechanism of an active hydraulically interconnected suspension (HIS) system, a fuzzy logic controller (FLC) is implemented and empirically tuned on a sport utility testing vehicle fitted with the proposed active suspension...
This paper covers a comparative study on fuel economy and emissions of a conventional hybrid electric vehicle (HEV) and the UTS plug-in HEV (PHEV). The interaction between the components such as energy storage system, electric machine, power control unit and internal combustion engine of the UTS PHEV are complex in order to optimize the fuel economy and emissions brought by the vehicle. In this work,...
This paper presents modeling, control strategy and simulation results of an energy management strategy (EMS) for a specific plug-in hybrid electric vehicle (PHEV). A good control strategy is required among components, such as the energy storage system, an electric motor, a power control unit, and an internal combustion engine in order to ensure that the vehicle achieve an improvement in energy efficiency,...
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