An auto rickshaw is a three wheeled motor vehicle with one front steering wheel. Auto rickshaws are most commonly found in developing countries as they are a very cheap form of transportation due to low price, low maintenance cost, and low operation costs. Auto rickshaws needs to be developed to take the step into the 21-century. To develop a new product in the modern world one of the most impo...

Active suspension is considered to be a good way improve the ride comfort of high-speed trains. According output index requirements train’s active suspension, giant magnetostrictive actuator(GMA) proposed. This mainly because materials(GMM) has characteristics fast response, large force and high energy conversion rate. It verified by experiments that proportional excitation current. found in ex...

in this paper a survey to determine the spring and damper settings of itm285 tractor’s cabin which ensured optimal ride comfort of tractor operator was conducted. analysis has been done in terms of root mean square acceleration response (rmsar) in one-third-octave band and international standard organization (iso). optimization was performed using particle swarm optimization (pso) method on a 2...

This article is about the problem of control system synthesis for an active suspension with not-ideal actuator under kinematic constrains. paper investigates influence hysteresis and dead zone in on efficiency system. To reduce a method discontinuous systems proposed. The proposed reduces sensitivity to disturbances caused by non-ideal actuator. It enables fourfold expansion distribution range ...

Recently we proposed a novel nonlinear control design for active suspensions, which features a lter whose band-width is a nonlinear function of suspension travel; this lter results in an improved tradeoo between ride comfort and rattlespace usage. In this paper we augment this controller with a new road-adaptive algorithm which continuously monitors suspension travel and adjusts on-line the sha...

Ride quality depends on a combination of vertical displacement (heave) and angular displacement (pitch). Road irregularities are the main factor affecting ride comfort. Suspension elements between the road wheels and the vehicle body generate vertical forces which excite both heave and pitch motions. An active controller design based on time-scale separation and an "input decoupling transformat...

The paper presents an application of the Skyhook control of suspension MR dampers in a vehicular vibration control system. Experiments were conducted using an ATV (all-terrain vehicle) traversing a test route. The system elements were analyzed and calibrated paying special attention to the space orientation of sensors and MR dampers. Orientation data and inversed Bingham model, which maps dynam...

Suspension is the general name of device that connects conductive force between car body and wheels. Among them, operational stability ride comfort are two contradictory requirements in actual driving. In traditional vehicle suspension system, order to maintain vehicle, vibration energy caused by uneven road surface usually dissipated passive shock absorber form heat. If this part can be recove...

This paper presents a reduce roll vibration of the full vehicle model with passive suspension systems using vibration absorber to change the dynamic system matrix stat’s eigenvalue. Since using the controller system has been splurged and required to energy consuming, in this research the vehicle body roll vibration has been reduced and supplied vehicle stability using a vibration absorber for t...