A ZigBee based collision avoidance system for railways has been proposed in this paper. The Train Anti-Collision System (TACS) has four sub centers namely, Train Subsystem, Station/Control Center Subsystem, Signalling Post Subsystem and Level Crossing Subsystem. A safe distance of 1 Km has been given for braking between the trains in case of collision distance. Based on the studies, it has been...

The reliability of the braking system of moving walks plays a major role in the safe exploitation of these people movers. According to the requirements of the new standard ISO 22201-2, the reliability of a braking system of a moving walk has to correspond to safety integrity levels SIL1 till SIL3. In order to determine the required safety integrity level, a reliability analysis of a braking sys...

Hydraulic regenerative braking system is an important branch of hybrid technology, which has the advantage of high power density and the ability to accept the high rates/high frequencies of charging and discharging, therefore hydraulic regenerative braking technology is well suited for off-road vehicles and heavy-duty trucks. Relatively lower energy density and complicated coordinating operatio...

When introducing commercial driving simulators a few years ago, the main interest was focused either on operating the vehicle or on the reactions of the driver in traffic and in emergency situations. A comprehensive modeling of the vehicle dynamics was not required for these tasks. However, there are driving simulator applications which make much higher demands on the modeling of the vehicle dy...

Currently, vehicles are often equipped with active safety systems to reduce the risk of accidents, many of which occur in the urban environments. The most popular include Antilock Braking Systems (ABS), Traction Control and Stability Control. All these systems employ different types of sensors to constantly monitor the conditions of the vehicle, and respond in an emergency situation. In this pa...

improvement in braking performance and vehicle stability can be achieved through the use of braking systems whose brake force distribution is variable. electronic braking force distribution has an important and serious role in the vehicle stopping distance and stability. in this paper a new approach will be presented to achieve the braking force distribution strategy for articulated vehicles. f...

In 2010, over 20.3 million vehicles were recalled. Software issues related to automotive controls such as cruise control, anti-lock braking system, traction control and stability control, account for an increasingly large percentage of the overall vehicles recalled. There is a need for new and scalable methods to evaluate automotive controls in a realistic and open setting. We have developed Au...

1 Description of the Model We present a model of headway control in the railway domain, as depicted in Figure 1. In this case study, continuous distributions are used. The abstraction of a guarded command with a continuous probability distribution into one with a discrete probability distribution is described in a recent publication [1]. A more extensive description of the setting plus a closel...