Electronically controlled pneumatic brake system and method for an automotive vehicle, said system comprising a front axle brake module (FBM) for providing pneumatic control pressure to the left and right front pneumatic brake actuators (FW-L, FW-R), one or more rear axle brake module (RBM) for providing pneumatic control pressure to the left and right rear pneumatic brake actuators (RW-L,RW-R), an air production module (6) selectively providing air under pressure to said front and rear axles electronic brake modules via a first air supply circuit (AC1) for the rear axle, a second air supply circuit (AC2) for the front axle, first and second air reservoirs (R1,R2), respectively coupled to first and second air supply circuits, and a third reservoir (R3) and a third air supply circuit (AC3) connected to the third reservoir (R3), for providing a redundant pneumatic supply to the front and rear axle brake modules, the third air supply circuit (AC3) providing same braking performance as the first air supply circuit (AC1) for the rear axle and same braking performance as the second air supply circuit (AC2) for the front axle.

An electropneumatic brake control module (1) has a supply connection (2) for connecting a compressed air supply (3); a first wheel brake connection (4) and a second wheel brake connection (6); a pneumatically controlled inlet-outlet valve unit (8) for controlling a first brake pressure (PB1) at the first wheel brake connection (4) and a second brake pressure (PB2) at the second wheel brake connection (6), which is independent of the first brake pressure (PB1); and an electropneumatic pilot control unit (10) for controlling at least one main control pressure (PH) at a main valve (12) of the inlet-outlet valve unit (10). The main valve (12) of the inlet-outlet valve unit (10) is a pneumatically controllable 3/2-way valve (13) with a main valve control connection (12.4).

An electropneumatic pilot unit for controlling a pneumatic consumer is provided herein. The pilot unit comprises at least two electromagnetic pilot valves. Each of the electromagnetic pilot valves comprises a coil for producing a magnetic flux along a valve axis, an armature which can be moved in the axial direction of the valve axis, a valve seat which can be closed and opened by the armature, and a pneumatic inlet port and a pneumatic outlet port. At least two of the pilot valves lie next to each other with parallel valve axes. Each pilot valve has a port which protrudes towards a common underside for connection to a pilot chamber of the consumer controlled by the pilot valves.

An apparatus for generating non-electric control signals for a brake system, which has a first supply source, including: at least one interface configured to be connected to a pressure accumulator; and at least one interface to output the control signals; in which the apparatus is configured to be supplied via a second supply source. Also described are a related module and an electronic brake system

A brake valve for a compressed air brake system of a utility vehicle includes a compressed air input configured to connect to a system pressure, a compressed air output configured to connect a brake control line, and at least one sensor configured to determine a brake valve actuation travel of an actuating element of the brake valve with a working interconnection to the brake pedal. The brake valve further includes a characteristic curve memory storing two stored characteristic curves and/or dependences and at least one determination device. The brake valve is configured to output at least two useful sensor signals, a first of which represents a brake valve output pressure and a second of which represents a percentage actuation position of the actuating element. The at least one sensor is configured to generate an actuating signal depending on the brake valve actuation travel of the actuating element.

A control system for wheel-slip prevention in a railway vehicle with a pneumatic brake is provided. The control system comprises an input interface configured to accept a deceleration reference for controlling the pneumatic brake, and a memory configured to store a reference governor providing executable instructions for modifying the deceleration reference upon its violation of a wheel-slip constraint, and configured to store a controller providing executable instructions for mapping the modified deceleration reference to a sequence of control commands for controlling pressure applied by the pneumatic brake. The control system further comprises a processor configured to execute the reference governor to modify the deceleration reference and configured to execute the controller to map the modified deceleration reference to the sequence of control commands. Further, an output interface of the control system is configured to output the sequence of control commands to control the pneumatic brake.

An electro-pneumatic two-channel axle modulator (1) for utility vehicles has a first supply port (2) for connecting a first compressed air supply (3) and a second supply port (4) for connecting a second compressed air supply (5), a front axle channel port (6), a rear axle channel port (8), an electro-pneumatic front axle valve assembly (10) connected to the first supply port (2) for controlling a front axle brake pressure (pVA) at the front axle channel port (6), and an electro-pneumatic rear axle valve assembly (12) connected to the second supply port (4) for controlling a rear axle brake pressure (pHA) at the rear axle channel port (8). A first redundancy valve assembly (14) is connected to the second supply port (4) for controlling a redundant front axle brake pressure (pVAR) at the front axle channel port (6).

An electropneumatic brake system, for a commercial vehicle which is provided for pulling a trailer, includes at least one service brake circuit configured to activate service brake actuators, a parking brake circuit having parking brake actuators on at least one axle, a trailer brake circuit configured to provide a trailer brake pressure at a trailer brake pressure port, and a manually actuatable operating unit in a driver's cab. The manually actuatable operating unit has a first operating element and a second operating element. In the case of actuation of the first operating element when the vehicle is driving, the parking brake actuators are activated and a trailer brake pressure is output at the trailer brake pressure port. In the case of actuation of the second operating element when the vehicle is driving, only a trailer brake pressure is output.

An electropneumatic-equipment of a vehicle, including: a) an electropneumatic-parking-brake-device (EPBD) having an electropneumatic-parking-brake-control-device (EPBCD), a compressed-air-supply and pneumatic-spring-type brake-cylinder, b) the EPBCD has an electronic-parking-brake-control-unit (EPBCU), a first valve-device including a first solenoid-valve and valve-pressure controlled thereby, the first solenoid-valve being controlled by the EPBCU, c) a pneumatic-control-input of the pressure-controlled valve is connected to the first solenoid-valve and a working-output of the pressure-controlled valve is connectable to the spring-type brake-cylinder, d) the first solenoid-valve is connected to the compressed-air-supply and pressure-sink, e) the first solenoid-valve is configured such that it connects the pneumatic-control-input of the pressure-controlled valve to the compressed-air-supply/pressure-sink, f) the pressure-controlled valve is configured such that for deaeration of its pneumatic-control-input, it deaerates its working-output and for aeration of its pneumatic-control-input, it aerates its working-output, and g) a second valve-device having a second solenoid-valve, connected to the pneumatic-control-input of the pressure-controlled valve of the first valve-device and is configured such it connects the pneumatic-control-input of the pressure-controlled valve to a further pressure-sink or blocks such a connection, h) the EPBCD is supplied with electrical-energy by two electrical-energy-sources, a first electrical-energy-source and second electrical-energy-source, and i) the second solenoid-valve of the second valve-device is energized/deenergized by the two energy-sources or by two electronic-control-units, of which a first electronic-control-unit and a second electronic-control-unit is supplied with electrical energy by another energy-source.

A vehicle braking system including a control unit (340) which is operable to communicate with at least one sensor (320, 350), the sensor (320, 350) being operable to provide signals corresponding to a characteristic of a vehicle to the control unit (340), and the control unit (340) being in communication with a brake demand source (300) to receive brake demand data, and the control unit (340) also being in communication with a plurality of wheel end units, each wheel end unit including a brake torque control unit (310) which is operable to control an associated brake actuator to apply a braking torque dependent upon a signal received from the control unit (340).