Friction condition characterization for rail vehicle advanced braking system

Mechanical Systems and Signal Processing ◽

10.1016/j.ymssp.2019.106324 ◽

2019 ◽

Vol 134 ◽

pp. 106324 ◽

Cited By ~ 4

Author(s):

Sundar Shrestha ◽

Maksym Spiryagin ◽

Qing Wu

Keyword(s):

Friction Condition ◽

Braking System ◽

Rail Vehicle

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Breaking Deceleration Control of Urban Rail Vehicle Based on Smith Predictor

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.712-715.2196 ◽

2013 ◽

Vol 712-715 ◽

pp. 2196-2201

Author(s):

Meng Nan Zhang ◽

Hong Ze Xu

Keyword(s):

Dead Time ◽

Smith Predictor ◽

Comfort Level ◽

Control Mode ◽

Phase System ◽

Vehicle Simulation ◽

Braking System ◽

Rail Vehicle ◽

Urban Rail ◽

The Impact

Stopping accuracy is a significant guarantee of the safety of the train's operation. It is mainly impacted by the performance of the electric-pneumatic braking system and the control mode of the braking system. In this paper, the braking deceleration control mode is adopted and a braking model of the urban rail vehicle reflecting the principle of the electric-pneumatic braking system is derived. Dynamic characteristics of the deceleration and dead time of the system are also considered in this model. Furthermore, the impact of the dead time is also analyzed in this work. Based on this nonminimum phase system, a conventional PID controller with the Smith predictor is proposed to control the deceleration of the vehicle. Simulation results verify that this method not only tracks the reference breaking deceleration but also effectively improves the stability of the braking system and the comfort level of the urban rail vehicle.

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The Research of Magnetic Track Brake System

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.427-429.1342 ◽

2013 ◽

Vol 427-429 ◽

pp. 1342-1345

Author(s):

Yu Chun Pei

Keyword(s):

Brake System ◽

Regenerative Braking ◽

Light Rail ◽

Emergency Braking ◽

Braking System ◽

Rail Vehicle ◽

Load Change ◽

Parking Brake ◽

Braking Force

This paper introduces the braking system scheme of low floor light rail vehicle, applying the regenerative braking and magnetic track brake, realizes service braking, emergency braking, parking brake and holding brake, also adjusts the braking force according to the load change.

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