Rail vehicle braking system and braking method for a rail vehicle comprising such a system
AssigneeFaiveley Transport Amiens
InventorsClaudino GONCALVES, Evi FERRON, Gilles BOISSEAU, Louis SELLIER
Life of this patent
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Abstract
Disclosed is a railway braking system including a service brake supplied by a first source, a parking brake having a device for immobilizing the service brake and a mobile control device for mobile control of the immobilizing device, and a command and control unit configured to receive information indicative of a value of the first source, process information indicative of a parking brake setpoint so as to actuate the control device, and determine a value of a second source according to the setpoint and to the information indicative of a value of the first source, so as to supply a pressure chamber of the service brake.
Claims26
A rail vehicle braking system with brakes that have at least one lining or at least one block (5), comprising:
- a body (2 ;
- 102);
- a braking linkage (4) configured to act on at least one said brake that has at least one lining or at least one block (5);
- a service brake (6 ;
- 106) comprising a braking piston (8 ;
- 108) which is movable relative to said body (2 ;
- 102) to act on said braking linkage (4) and delimits with said body (2 ;
- 102) a service brake pressure chamber (13 ;
- 113) configured to be supplied by a first source of pneumatic pressure agent to put said braking piston (8 ;
- 108) into a service braking position;
- and
- a parking brake (7 ;
- 107) configured to act on said braking piston (8 ;
- 108) of said service brake (6 ;
- 106) and having a working configuration and a resting configuration;
- said rail vehicle braking system (1) being wherein said parking brake (7 ;
- 107) comprises:
- a blocking device (20 ;
- 120) which is movable relative to said body (2 ;
- 102) to act on said braking piston (8 ;
- 108) and having a first position and a second position in which said blocking device (20 ;
- 120) is configured to immobilize said braking piston (8 ;
- 108) in service braking position, said parking brake (7 ;
- 107) then being in working configuration;
- an actuating device (23, 24 ;
- 123, 124) which is movable relative to said body (2 ;
- 102) and having a locking position in which said actuating device (23, 24 ;
- 123, 124) is configured to hold said blocking device (20 ;
- 120) in its second position;
- said rail vehicle braking system (1) being configured such that, when said actuating device (23, 24 ;
- 123, 124) is in its locking position, said service brake pressure chamber (13 ;
- 113) is supplied by a second source of pneumatic pressure agent of which the pressure value is determined, in order to apply, when said parking brake (7 ;
- 107) is in working configuration, a determined braking force;
- said rail vehicle braking system (1) further comprising a control and actuation unit (3) configured to:
- receive an information item representing a value of said first source of pneumatic pressure agent;
- process an information item representing a parking brake setting at least in its working configuration, for the purpose of actuating said movable actuating device (23, 24 ;
- 123, 124) at least in its locking position;
- and
- determine a value of said second source of pneumatic pressure agent according to said parking brake setting and said information item representing a value of said first source of pneumatic pressure agent, for the purpose of supplying said service brake pressure chamber (13 ;
- 113).
Dependencies are inferred from the claim text.