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A torque control method for Brushless Direct Current (BLDC) motor is introduced in this paper, which plays vital roles in In-wheel vehicle system. In-wheel motor can be used in electric cars with 4 wheels independent drive configuration. Within every wheel, there can be one “Direct-Drive In-wheel motor” to generate the necessary torque per wheel. In order to improve dynamic response characteristics...
This paper presents a torque observer designed using the Lyapunov stability theorem and a dynamic power assisted wheelchair constructed using Lagrangian's equation. This proposed method can be used to accurately control and estimate the impact torque of the power assisted wheelchair. This novel observer design combines an adaptive observer and PI controller to accurately control the apparatus. The...
A yaw motion stabilization controller in Electric Power Steering (EPS) system is designed in this paper. According to the linearized four-wheel model of vehicle, a state observer of cornering state variables, such as yaw rate angle and slip angle. In order to improve the drive comfort and drive safety for EPS, a Yaw Rate Generator is designed and a yaw rate stabilization controller is constructed...
Sizing the drive system is a major task in electric traction design. To reach this goal, we have chosen an approach using power efficiency criteria minimization by iterative procedure. To start with, this study proposes a statistical analysis of electric vehicle (EV) mission for establishment of power and base speed of drive system motorization. The result is considered an initial step in drive system...
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