An electro-pneumatic braking system including a pneumatic pressure supply pipe, a generator for generating a vehicle load signal, a weighting system designed to supply a weighted pressure which defines a maximum braking pressure, limited as a function of the load signal, and braking control units connected to the weighting system and having a relay valve connected between the pipe and at least one brake cylinder, to cause the application to this cylinder of a controllable braking pressure, equal to or less than the weighted pressure. The weighting system includes an electro-pneumatic drive assembly, interposed between the pipe and the drive inlet of the relay valve and is connected to the pipe through a pressure limiter, and an electronic weighting control unit which controls this drive assembly as a function of the load signal, so as to modulate in predetermined ways the pressure at the drive inlet of the relay valve.

A modular EAB system that reduces the number of individualized modules but provides the desired functionality using a configuration module that is coupled to a plurality of brake system control modules and has a receptacle interface configured to engage a series of modular sections that can be selected from a variety of options to perform dedicated air brake functions. The dedicated air brake functions included comprise brake pipe cutout, equalizing reservoir backup, brake pipe emergency, automatic flow calibration, dead engine regulator, dynamic brake interlock, emergency limiting valve regulation, dynamic brake interlock and emergency limiting valve regulation, 20 pipe back up, and brake cylinder cutout.

A supervising device for monitoring the operation of an anti-slip device is described; the supervising device is arranged to: acquire estimated instantaneous linear speeds associated with axles controlled by the anti-slip device; compare the estimated instantaneous linear speeds with a linear reference speed; monitor the state of the pressures to the brake cylinders; determine whether the anti-slip device is working correctly, depending on predetermined trends of each of the estimated instantaneous linear speeds associated with the axles in the slipping phase, with respect to the reference linear speed, in association with each of the pressures to the brake cylinders associated with the axles adjust the preloaded time value in at least one of the timing devices when the supervising device determines that the anti-slip device is not working correctly.

The invention relates to a rail vehicle brake system comprising a conditioning device, having at least one disc brake per axle, the conditioning device having a control device. The conditioning device is formed having at least one wagon control unit and at least one coupling unit for selective actuation of the at least one disc brake per axle. The invention further relates to a conditioning device and to a method for operating a conditioning device, and to a method for deicing and/or for preventing icing of a brake unit of a rail vehicle brake system.

A method for detecting leaks in at least one brake pressure line, under braking pressure, of a compressed air brake device of a rail vehicle having an indirect electro-pneumatic brake, wherein the indirect electro-pneumatic brake has a master air vessel line to hold a master air vessel line pressure, and a compressed air source supplying the master air vessel line with compressed air and is controlled by the master air line pressure in a master air line, wherein the at least one brake pressure line under braking pressure extends between a valve device, which controls the braking pressure in dependence upon the master air line pressure in the master air line, and at least one brake actuator, and where the braking test method is carried out when the rail vehicle is stationary.

A brake controller includes: a necessary braking force calculator to calculate a necessary braking force that is a braking force generated by a mechanical brake apparatus in order to obtain a deceleration indicated by a brake command; an initial speed acquirer to acquires an initial speed; a target pressing force calculator to calculate a target pressing force that is a force for pressing a brake shoe against a wheel in order to obtain the necessary braking force; and a target pressure calculator to calculate a target pressure indicating a pressure of a fluid inside the brake cylinder that is necessary for obtaining the target pressing force and perform feedback control to adjust the target pressure based on a feedback signal acquired from a pressure sensor.

An electromechanical actuator (200) for a braking system of a vehicle (V), particularly a railway vehicle, is described, characterized in that it includes a first control means (202) arranged to receive from a speed sensor means (204, 204), associated with a wheel (w) of the vehicle, a speed signal having a value indicative of an angular speed of the wheel (w) of the vehicle.

A braking system and a vehicle are also described.

An electro-pneumatic braking system including a pneumatic pressure supply pipe, a generator for generating a vehicle load signal, a weighting system designed to supply a weighted pressure which defines a maximum braking pressure, limited as a function of the load signal, and braking control units connected to the weighting system and having a relay valve connected between the pipe and at least one brake cylinder, to cause the application to this cylinder of a controllable braking pressure, equal to or less than the weighted pressure. The weighting system includes an electro-pneumatic drive assembly, interposed between the pipe and the drive inlet of the relay valve and is connected to the pipe through a pressure limiter, and an electronic weighting control unit which controls this drive assembly as a function of the load signal, so as to modulate in predetermined ways the pressure at the drive inlet of the relay valve.

A control valve device for a highly available pneumatic brake system for a rail vehicle, having a compressed-air inlet which is or can be connected to an outlet of a discharge valve device; a compressed-air outlet which is or can be connected to a relay valve device; and a safety input which is or can be connected to a compressed-air source; wherein the control valve device fluidically connects the safety inlet to the compressed-air outlet in a first switching position and fluidically connects the compressed-air inlet to the compressed-air outlet in a second switching position; wherein the control valve device can modify the inlet pressure in the second switching position in accordance with a control device, in order to provide the outlet pressure.

A method and device monitor and influence the thermal state of a friction brake system of a rail vehicle on the basis of a calculated or estimated predictive friction element temperature of at least one friction element of the friction brake system. The method detects at least one parameter which characterizes the current driving operation situation of the rail vehicle; calculates, estimates, or determines a first temperature component of the predictive friction element temperature based on the current driving operation situation of the rail vehicle; and takes into consideration a first temperature component while monitoring and influencing the thermal state of the friction brake system.