In this article, gyroscopes and flywheels are used to prevent the rollover of a vehicle due external forces. The preventing performance for heavy trailer (an inverted pendulum problem) is investigated at high road bank angle risk. Two control moment (CMG) reaction wheel controlled by proportional torques keep in stable motion vertical position. was only eliminate dissipation energy damper. By u...

Heavy vehicles make up a relatively small percentage of traffic volume on Malaysian roads compared to other vehicle types. However, heavy have been reported be involved in 30,000–40,000 accidents yearly and caused significantly more fatalities. Rollover may also incur cargo damages cause environmental or human disasters for that carry hazardous cargos if these contents are spilled. Thus, this p...

To improve the handling stability of automobiles and reduce odds rollover, active or semi-active suspension systems are usually used to control roll a vehicle. However, these kinds often take zero-roll-angle as target have limited effect on improving performance vehicle when turning. Tilt control, which actively controls tilt inward during curve, greatly benefits comprehensive it is cornering. ...

The objective of this paper is to describe a model for the simulation lateral dynamics vehicle, specifically buses, under variable trajectory conditions, such as camber and radius curvature; in addition, speed added parameter. study prevention vehicle rollover sideslip. An 8 degrees freedom was developed, considering front rear section bus with its respective suspension system, both sections ha...

Bridge rail-to-guardrail transitions are designed to shield unprotected ends of bridge rails, which are fixed-obstacle hazards. These structures should provide an effective transition between longitudinal barriers with different lateral stiffness and contain and redirect impacting vehicles without any contact with the rigid sections of the system. Recently, a full-scale crash test was performed...

With the developments in automobile technologies; more focus is given to the vehicle weight reduction. About 30% weight is contributed by the automobile body. Now-a-days, plastic composites are used to manufacture automobile bodies as they are strong, light, corrosion resistant and easy to use. This paper represents the selection of plastic composites to build vehicle roof as a replacement of c...

A methodology for estimating vehicle dynamics whith road geometry consideration is presented in this paper. Vehicle sideslip and roll parameters are estimated in the presence of the road bank angle and the road curvature as unknown inputs. The unknown inputs are then estimated using the observer results. This information about the road geometry and vehicle parameters is needed in the driver ass...

A weighted logistic regression with careful selection of crash, vehicle, occupant and injury data and sequentially adjusting the covariants, was used to investigate the predictors of the odds of head/face and neck (HFN) injuries during rollovers. The results show that unbelted occupants have statistically significant higher HFN injury risks than belted occupants. Age, number of quarter-turns, r...