T/CI 122-2022 Urban rail transit vehicle electrical mechanical braking system general technical specifications

Scope

Scope: This document specifies the usage conditions, technical requirements, inspection, marking, and quality assurance period of the electromechanical braking system for urban rail transit vehicles. This document applies to urban rail transit vehicles with an operating speed of 160 km/h or lower; Main technical content: 5.1 Basic requirements and general provisions 5.1.1 The braking system shall have the ability to decelerate or stop the train to ensure its operation, and meet the requirements of braking distance under specified conditions. 5.1.2 The braking system shall have the ability to prevent the stationary train from slipping. 5.1.3 The braking system shall make full use of the adhesion between the wheels and the track to maximize the braking capacity of the braking system. 5.1.4 The electromechanical braking system shall meet the requirements of heat capacity under AW3 load conditions for vehicles operating on the line under specified conditions. 5.1.5 The braking system shall ensure the compatibility and function of the interface with the vehicle and related systems, and avoid mutual interference. The design of the entire braking system shall be complete, and the design principle shall be failure-oriented safety. 5.1.6 For vehicles with powered bogies and non-powered bogies, or trains with traction control based on bogies, the braking system shall adopt a bogie-controlled braking system. 5.1.7 The braking system shall adopt a modular design with high interchangeability for easy maintenance. 5.1.8 The braking control system shall adopt microcomputer control to ensure continuous adjustment and control of braking force. 5.1.9 The braking system shall have functions such as normal braking, emergency braking, and parking braking. 5.1.10 The safety functions of normal braking, emergency braking, and anti-skid control of the braking system shall be designed in accordance with the requirements of GB/T 21562. 5.1.11 The braking system shall not produce toxic or h

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