The interaction between the tire and road has long been of interest for vehicle dynamic simulation. A planar tire model is developed to capture the tire circumferential displacements and calculate the spindle force according to the tire shape. The tire is discretized into segments and Hamilton’s principle is used to derive the model mathematical expression. It is shown that the static constrain...

The condition of brake fluid is important to automotive safety, reliability and brake system longevity. Brake fluid absorbs moisture over time. Increasing moisture levels in the brake fluid lower the boiling point, increase viscosity and cause corrosion of system components. Brake fluid with high moisture content can boil when extreme braking is required or a pad sticks. The effect of boiling i...

PT XYZ is a company that manufactures of tire fabrics in the Tangerang. Global competition force continues to strive reduce process costs, one which by reducing highest percentage defects, namely corky defects reach 39.7% total defects. The tree diagram and FMEA methods, selected for analysis potential failures cause are found namely: Threads not clamped when changing pots, joints pulled at beg...

Combined with the characteristics of distributed-drive electric vehicle and direct yaw moment control, a double-layer structure controller is designed. The upper additional constructed based on model predictive control. Aiming at minimizing utilization rate tire adhesion constrained by working motor system brake system, quadratic programming active set was designed to optimize distribution mome...

In this research study, one of the most crucial automotive engineering problems is intended to be solved. The necessity of tire pressure monitoring system is beyond doubt. Such systems are now provided relying on expensive sensors. In this study an indirect tire pressure monitoring system is proposed, utilizing identification techniques, which will reduce the cost of monitoring considerably in ...

This work presents a Nonlinear Model Predictive Control (NMPC) scheme to perform evasive maneuvers and avoid rear-end collisions. Rear-end collisions are among the most common road fatalities. To reduce risk of collision, it is necessary for controller react as quickly possible exploit full vehicle maneuverability (i.e., combined control longitudinal lateral dynamics). The proposed design relie...

one of the methods to reduce the emissions in a diesel engine is by oxygen introduction into the combustion chamber which can be done by supplying the oxygen into the inlet manifold during suction stroke. oxygen affects different parameters such as brake thermal efficiency, fuel consumption, nox and smoke at different load conditions. load test was conducted for various concentrations of oxygen...

ABSTRACT: The objective of this paper is to investigate a class of general tire models that provides results suitable for usage in vehicle dynamics. Tire models currently used for vehicle dynamic analyses are overly simplistic (springs, a spring and damper combination or semi-elastic substance) or based on curve fits of experimental data. In contrast, the tire models used by major tire companie...

In-situ sensing the tire–road interactions such as local contact friction force distributions provides crucial information for building accurate friction force models for vehicle safety control. In this paper, we report the development of an embedded, flexible local force sensor for measuring the tire local friction forces and their distributions. A new pressuresensitive, electric conductive ru...

Use of tire shreds in construction projects, such as highway embankments, is becoming an accepted way of beneficially recycling scrap tires. However, in the last decade there was a decline in the use of pure tire shreds as fill materials in embankment construction, as they are susceptible to fire hazards due to the development of exothermic reactions. Tire shred-sand mixtures, on the other hand...