法维莱制动系统培训课件

LOCO CHINEBRAKE SYSTEMHXD2 LocomotivesJune 2007General data of the locomotiveNormal service : 2 locomotives coupled togetherLocomotive 1 : master(generator of BP pressure active)Locomotive 2 : slave(generator of BP pressure no active)June 2007Type of brakes•Pneumatic friction brake•Electro-dynamic brake•Automatic parkingbrakeThe pneumatic friction brake is controlled by the driver’s brake valve (Eurotrol).June 2007Brake systemsDual brake pipe modes•Passengers (brake pipe 6 bar)•Freight (brake pipe 5 bar )Dual brake modes•Gradual control•Direct mode releaseJune 2007Brake commandsJune 2007LOCOTROL System•Multiple unit control system, installed on all units (leading & remote)•All traction and braking commands on the leading locomotive are transmitted to the others through the LOCOTROL systemJune 2007June 2007•Generic hardware & software platform called Gemini II •Controls the pneumatic equipment of the Eurotrol •Interfaced through :– A FIP bus to the train computer– A RS422 link to the LOCOTROL•Based on :–Time dependent inputs from the indirect brake manipulator –Brake demand from LOCOTROL systemBCUBCUJune 2007Brake system •dcwvJune 2007Brake system •Block schemeJune 2007June 2007•Receives its input from the BCU •Modulates the BP pressure–Calculates the internal pressure valve RE–Activates the control valves in a closed loop to obtain the desired pilotpressure REEUROTROLEUROTROL •First brake step pressureJune 2007EUROTROL •Brake applicationJune 2007EUROTROL •Brake releaseJune 2007EUROTROL •Stabilisation after braking or releasingJune 2007EUROTROL •Quick releaseJune 2007EUROTROL •Emergency brakeJune 2007EUROTROL •NeutralisationJune 2007June 2007•One distributor valve group per locomotive •This module :–Realises the automatic pneumatic brake,–Distributes air in the RADistributor valve group•Distributor SW4 G/P mode •Operation mode lever (management of BP reference pressure) :–M (freight) position : P BP = 500kPa–V (passenger) position : P BP = 600kPa•2 release modes : gradual & direct release ( RB(IS)RC cock position )June 2007•Cock RB(IS)RC open (switch closed)•Carried out in large flow (manipulator in GD position)•Only if P BP > 300kPa •If VV(RT)RC detectsa ΔP > 20kPabetween BP & R(T)↘RC discharge itselfinside BP↘The distributor is able to release the brake more quickly Direct release modeBrake releaseDirect release mode Brake releaseJune 2007Direct release mode Brake applicationJune 2007•Cock RB(IS)RC closed (switch open)Gradual release mode Brake applicationJune 2007LOCO CHINE DJ4Gradual release modeBrake releaseJune 2007HXD2 LocomotiveBrake releaseFor dynamic brake applicationJune 2007DIRECT BRAKEmanipulator•Controlled by the BCU onrequest of the LOCOTROLsystem, on the remotelocomotiveJune 2007DIRECT BRAKE •Brake applicationJune 2007DIRECT BRAKE •Release positionJune 2007DIRECT BRAKE •Brake cylinder pressure maintainingJune 2007HXD2 LocomotiveEMERGENCY BRAKE•Venting of the RE pilot pressure& of the brake pipeJune 2007EMERGENCY BRAKE•Action on the cabin’s emergencyequipment (push buttons)•Fast venting of the BPthrough a big hole(ø= 25mm)June 2007EMERGENCY BRAKE•Emergency brakingdone by the safety equipmentJune 2007PARKING BRAKE •Spring applied /pressure released type •Under the RA controlJune 2007PARKING BRAKE •The parking brake ventingJune 2007PARKING BRAKE •The parking brake ventingJune 2007PARKING BRAKE •The parking brake isolatingJune 2007Isolation •Parking brake isolationJune 2007•Parking brake isolationJune 2007Isolation •Direct brake isolationJune 2007•Direct brake isolationJune 2007•Brake cylinder isolationJune 2007•Brake cylinder isolationJune 2007Isolation •EUROTROL / CG isolating module (master / slave)June 2007•Eurotrol isolationJune 2007Isolation •Distributor / MP isolationJune 2007Isolation •Distributor / BP isolationJune 2007•MP/CG isolationJune 2007BRAKE PANEL •June 2007BRAKE PANEL •June 2007BRAKE PANEL (prototype)•June 2007。