4 Lightweight wheelchair stair-climbing attachments. Step stair-climbing mechanism targeted for wheelchair application is presented in Section 3. Finally a.This paper focuses on presenting the development of a stair-climbing wheelchair mechanism with high single-step capability. The mechanism is based on front.A stair climbing mechanism is a semi-automated vehicle, which has the. One is for mak...

Wheel profile is a very important factor that helps the steering performance of railway vehicle. However, during operation, wheel tends to vary inconsistently due frictional contact at wheel-rail interface. This paper focuses on problem wheelset and its alteration affects Signal-based indirect estimation technique using Fast Fourier Transform (FFT) proposed establish relationship between dynami...

Because of the nonlinear feature tire force, anti-lock braking system (ABS) research based on wheel slip control (WSC) is widely used even without measured and road friction. Combined with WSC technology, four-wheel ABS fuzzy sliding mode (FSM) method introduced in this paper. Unlike most single-wheel independent ABS, design has more advantages when under unusual conditions, such as transition ...

Anti-lock braking system (ABS) is the most common safety system in the vehicles, which works to increase the generated braking force between the tire and the road surface for enhancing passenger safety specifically related to accident avoidance. However, designing an ABS is a challenging task considering the fact that it is highly nonlinear and a time varying system. The interaction between the...

This paper presents the power management strategy for a parallel hybrid electric vehicle (PHEV). The vehicle is powered by dual energy sources consisting of internal combustion engine (IC engine) as the peak power source and the electric battery as the secondary energy source. The operational principle of the power management strategy and the possible power flow patterns are described. Based on...

To facilitate the damping matching of dampers for vehicle passive suspensions, this paper proposes an analytical matching method of the optimal piecewise linear damping characteristics curve. Based on the vehicle vibration model, taking the suspension dynamic deflection as the constraint, by the vibration acceleration and the wheel dynamic load, an objective function about the relative damping ...

In recent years, mobile robots are expected to perform various tasks in general environments such as nuclear power plants, large factories, welfare care facilities and hospitals. However there are narrow spaces with vertical gaps made by two horizontal floors in such environments and it is difficult for general car-like vehicles to run around there. Generally, the mobile robots are required to ...

The Articulated Wheeled Vehicle (AWV) paradigm examines a class of wheeled vehicles where the chassis is connected via articulated chains to a set of ground-contact wheels. Activelyor passivelycontrolled articulations can help alter wheel placement with respect to chassis during locomotion, endowing the vehicle with significant reconfigurability and redundancy. The ensuing ‘leg-wheeled’ systems...

The paper describes the automatic motor vehicle video stream based classification system. The system determines vehicle type at payment collection plazas on toll roads. Classification is performed in accordance with a preconfigured set of rules which determine type by number of wheel axles, vehicle length, height over the first axle and full height. These characteristics are calculated using va...

In order to solve the problem of vehicle stability control after a single-wheel brake failure in brake-by-wire system, strategy braking force redistribution with yaw moment is proposed ensure efficiency and vehicles. this strategy, two-layer architecture adopted. upper layer control, fault factor introduced represent real-time degree wheel, driver’s intention perceived through pedal travel spee...