The design process of a double-sided slotted TORUS axialflux permanent-magnet (AFPM) motor suitable for direct drive of electric vehicle (EV) is presented. It used sizing equation and Finite Element Analysis (FEA). AFPM motor is a high-torque-density motor easily mounted compactly onto a vehicle wheel, fitting the wheel rim perfectly. A preliminary design is a double-sided slotted AFPM motor wi...

This paper discuses sensor steering mechanism (SSM) for a laterally guided vehicle with a rear wheel steering mechanism. The authors have demonstrated the geometry of SSMs for front wheel steering type and reverse phase four-wheel steering type vehicles. SSMs allow stable lateral guiding performance for automated vehicles following a path with straight and curved portions created by a guideway....

A model-based control for fast autonomous four-wheel mobile robots on soft soils is developed. This control strategy takes into account slip and skid effects to extend the mobility over planar granular soils. Each wheel is independently actuated by an electric motor. The overall objective is to follow a path roughly at relatively high speed. Some results obtained in dynamic simulation are prese...

the single wheel tester is an experimental device used to measure wheel forces when studying the relation of soil and wheel in a soil bin or in the field. in the model under development, a special frame holding the test wheel is connected to a loading carriage by two pairs of vertical rails and four rollers to provide a floating connection. by applying a driving torque to the test wheel shaft, ...

A power assist wheel chair robot by which a patient can climb over steps/curbs without any helper's assistance is proposed. A patient can maintain inverse pendulum control of the wheel chair after raising its front wheels. Next, a patient can move to the step maintaining the inverse pendulum control, and can climb over the step being assisted by DC motor force. A light weight wheel chair system...

This paper proposes SSM(Sensor Steering Mechanism) for lateral guided vehicle with rear wheel steering mechanism. Authors demonstrated the geometry of SSM for the front wheel steer type and the reverse phase four-wheel steer type one. SSM presents a stable lateral guiding performance for automated vehicle which follows a straight and curved path created by guideway. The other hand, SSM is not e...

The paper present’s a survey of the wheel vehicles drives with electric and hybrid drive system. For electric and hybrid vehicle applications, wheels motor and magnetic circuits cutting motor drives, represented a new attractive solution for their lightness and compactness. The wheels are directly driven by the electric motor, and the gears are not necessary anymore. An alternating solution of ...

The Switched Reluctance Motor (SRM) processes great application potential in In-Wheel Motor (IWM) electric vehicles (EV). However the problem of vibration and noise is always a disadvantage of this kind of motor. By utilizing the analytical Fourier fitting method, a convenience method for modeling In-Wheel Switched Reluctance Motor (IW SRM) is proposed for EV applications. And the negative vibr...

Based on the structural features of electric vehicle (EV) driven by in-wheel motors and the characteristics of low speed as well as high torque for in-wheel motors, regenerative braking method for in-wheel motors has been presented. All braking torque for vehicle deceleration is output by in-wheel motors under Medium-intensity braking condition for the sake of recovering the maximum braking ene...

The precise position control, of multi-motor electric vehicles (EVs) by generating the asymmetric pulse generation is presented. The energy saving algorithm is implemented in the power drain control of EV system to improve the electrical safety and slip control of electric vehicle. The acceleration and Deceleration of the electric vehicle for wheel slip control were analyzed using the parameter...