Simulation of Automotive Anti-Collision System using Matlab

Abstract

The traffic accident is a major hazard in modern society. Automotive anti-collision system is an advanced security technology based on intelligent transportation system. Researchers worldwide have carried out relevant studies which are helpful to improve the road traffic safety and reduce the rate of traffic accident. In this paper, first functions of each part of the system are modelled to form the model of the whole part. According to the characteristics of automotive dynamics system and the characteristics of actuator structure, dynamics model of automatic anti-collision system are developed to simulate the complex process of the vehicle mobility. Some functions of the developed system are verified by simulation using Matlab. The system shows good control on the vehicle speed and safety stopping distance.

Collision Risk Mitigating System for Light Rail Vehicles(LRV)

“…In case of detection of moving objects like another tramway, in the moment of detection absolute speed of the object is calculated. Then system assumes that object may brake with deceleration of 3 m/s 2 and braking distance is calculated (2). Then the object is "repositioned" by the value of calculated braking distance on the path of the tramway.…”

“…After the phase of testing, adjusting the sensibility of the system and series of supervised test rides, and accounting for parameters like slope and poor quality of infrastructure, possible exploitation wear, possibility of slippage due to atmospheric conditions, we used the safety coefficient and we lowered the value of average vehicle deceleration that was used for calculations (s) to 2 m/s 2 (Fig. 7).…”

“…With the raise of traffic intensity in urban areas and more frequent interference of railways, roads and walkways the risk of collision with light rail vehicles with other types of vehicles and pedestrians has grown considerably [1]. Quickly growing automotive industry began to implement active anticollision systems [2]. This direction became interesting also for the providers of railway transport services.…”