Abstract: An electronically controllable pneumatic brake system has a primary service brake pressure modulator, a primary control unit, a secondary control unit that controls the first service brake circuit in the event of a fault, and a secondary service brake pressure modulator connected to the secondary control unit. The secondary service brake pressure modulator is supplied with reservoir pressure and has a secondary working connection for providing a redundancy brake pressure. A parking brake assembly is supplied with reservoir pressure and provides at a parking brake working connection a parking brake pressure for spring brake cylinders. A ventilation valve unit is arranged downstream of the secondary working connection and is connected to the secondary control unit and ventilates the secondary working connection in accordance with a ventilation signal provided by the secondary control unit so as to lower a reservoir pressure in order thereupon to ventilate the spring brake cylinder.

Abstract: A compressed-air supply arrangement is for supplying compressed air to an electronically controllable pneumatic brake system of a utility vehicle. An electronically controllable pneumatic brake system includes such a compressed-air supply arrangement. A corresponding utility vehicle includes such a braking system. A method is for engaging a parking brake in the event of a fault of an electronically controllable pneumatic brake system of a utility vehicle. The compressed-air supply arrangement includes a compressor, an air treatment unit, at least one compressed-air reservoir for providing a reservoir pressure, and a delivery-rate limiting device, having a switchable valve unit, for limiting the compressed-air flow delivered by the compressor to the at least one compressed-air reservoir. The switchable valve unit is switched, in the event of a fault of the brake system, via a switching signal received from an electronic brake control unit of the brake system.

Abstract: An electronically controllable pneumatic brake system for a vehicle includes a first service brake circuit having a pressure modulator and an electronic service brake control unit. The brake system furthermore includes a parking brake device having a parking brake module and a reversal relay valve for pressurizing and ventilating at least one first spring brake cylinder. The reversal relay valve has a first control connection, a second control connection, a working connection, a reservoir connection and a vent. The second control connection is connected to an electropneumatic valve arrangement in order to receive a second control pressure. The valve arrangement is actuated by an electronic control unit independent of the electronic service brake control unit. The reversal relay valve is configured to ventilate the spring brake cylinder in a situation wherein the first and second control connection are pressurized and a reservoir pressure prevails at the first reservoir connection.

Abstract: The disclosure relates to a vehicle system for a vehicle, in particular a commercial vehicle, that includes an electronically controllable pneumatic braking system, and an electronically controllable steering device. The electronically controllable pneumatic braking system has a redundant control unit, which controls the brake circuits in the event of a failure of an electronic stability control of the braking system during travel. In the event of the failure of the electronic stability control during travel, the redundant control unit performs axle-wise control of the front axle with a front axle redundancy brake pressure and/or of the rear axle with a rear axle redundancy brake pressure and the electronically controllable steering device carries out laterally stabilizing steering interventions in order to keep the vehicle in a tolerance corridor of a predefined target trajectory of the vehicle. The disclosure also relates to a vehicle and a method.

Abstract: The disclosure relates to a method for controlling an electronically controllable pneumatic braking system for a towing vehicle. The towing vehicle has front axle brake actuators and rear axle brake actuators; a primary system with a primary control unit for controlling the front and rear axle brake actuators; a secondary system with a secondary control unit for controlling the front and rear axle brake actuators in the event that a fault is detected in the primary system and the braking system is controlled by the secondary system; a trailer control valve for providing a trailer brake pressure at a trailer brake pressure port; and a PLC connector for receiving PLC signals from a trailer. The method includes: providing PLC signals received at the PLC connection both in the primary system and in the secondary system; and processing PLC signals in both the primary system and the secondary system.

Abstract: A controller is for a vehicle system. The controller includes: at least one terminal for exchanging signals with a peripheral device that is connected to the terminal; a processing unit that is connected or connectable to the at least one terminal and that is configured to process signals that can be transmitted via the terminal; and, at least one operating unit for operating the at least one terminal. The controller has a switch-over unit that is configured to switch over between at least two operating modes for the at least one terminal. The switch-over unit is configured to select the operating mode in dependence upon whether the peripheral device connected to the respective terminal is also simultaneously connected to a further controller via a y-connection, or being directly cabled is connected only to the respective terminal of the controller.

Abstract: A brake system is for the electronically controlled braking of wheels on at least two main axles. The system includes wheel speed sensors on the main axles and on at least one additional axle to output wheel speed signals and two control devices for generating and outputting brake signals. The wheel brakes on the main axles can be controlled according to the brake signals. The sensors on the main axles are connected to the control devices via main data lines such that each control device for each wheel on the main axles, which is assigned a wheel speed sensor, can receive a determined wheel speed via the wheel speed signals. Each wheel speed sensor on at least one additional axle is connected only to one of the control devices via an additional data line. Each control device is connected to at least one of the sensors on the additional axle.

Abstract: The disclosure relates to an electronically controlled pneumatic brake system for a utility vehicle, including a front-axle brake circuit with a single-channel front-axle modulator for the control of first and second front-axle service brake actuators, wherein first and second front-axle ABS valves are provided; a rear-axle brake circuit with a single-channel rear-axle modulator for the control of first and second rear-axle service brake actuators, wherein first and second rear-axle ABS valves are provided; a braking-value sensor which has an electrical terminal for the provision of an electronic brake demand signal; and a central electronic control unit which receives the electronic brake demand signal and controls the front-axle and rear-axle modulators. Here, it is provided that the central electronic control unit is formed as a structural unit with the rear-axle modulator and/or the front-axle modulator.

Abstract: A brake control system is for a vehicle containing an internal controller for outputting an internal control variable for at least one brake actuator. An interface receives an external control variable for the at least one brake actuator from an external controller. A decision circuit has at least two inputs for receiving the internal control variable and the external control variable and an output for outputting a control signal for the at least one brake actuator. The control signal depends on the received internal control variable and/or the received external control variable.

Abstract: The disclosure relates to a vehicle system for a vehicle, in particular a commercial vehicle, that includes an electronically controllable pneumatic braking system, and an electronically controllable steering device. The electronically controllable pneumatic braking system has a redundant control unit, which controls the brake circuits in the event of a failure of an electronic stability control of the braking system during travel. In the event of the failure of the electronic stability control during travel, the redundant control unit performs axle-wise control of the front axle with a front axle redundancy brake pressure and/or of the rear axle with a rear axle redundancy brake pressure and the electronically controllable steering device carries out laterally stabilizing steering interventions in order to keep the vehicle in a tolerance corridor of a predefined target trajectory of the vehicle. The disclosure also relates to a vehicle and a method.

Abstract: The disclosure relates to a method for controlling an electronically controllable pneumatic braking system for a towing vehicle. The towing vehicle has front axle brake actuators and rear axle brake actuators; a primary system with a primary control unit for controlling the front and rear axle brake actuators; a secondary system with a secondary control unit for controlling the front and rear axle brake actuators in the event that a fault is detected in the primary system and the braking system is controlled by the secondary system; a trailer control valve for providing a trailer brake pressure at a trailer brake pressure port; and a PLC connector for receiving PLC signals from a trailer. The method includes: providing PLC signals received at the PLC connection both in the primary system and in the secondary system; and processing PLC signals in both the primary system and the secondary system.

Abstract: An electronically controllable braking system for a commercial vehicle is provided, including a service brake system having a front axle brake circuit with a front axle modulator, a rear axle brake circuit, and a central control module. The central control module is configured to implement a braking specification via the front axle brake circuit and the rear axle brake circuit. A parking brake module that is configured, in the event of a defect in the central control module, to process the braking requirement and to output a rear axle redundancy brake pressure to spring-brake parts for the redundant implementation of the braking specification. It is further provided that the front axle modulator is configured to process the braking specification and to output a front axle redundancy brake pressure to the front axle brakes for the further redundant implementation of the braking specification.

Abstract: A method for determining jumps and/or inflection points in an activation characteristic of an activation unit includes activating the activation unit using an activator, wherein different activation areas, separated from one another by the jumps and/or inflection points, are defined by the activation characteristic. Different activation forces for activating the activator are respectively set in the activation areas. The jumps and/or inflection points are determined by activating the activator by continuously determining activation travel values of the activator, respectively assigning an activation speed characteristic variable to the determined activation travel values, continuously forming value pairs from the determined activation travel value and the assigned activation speed characteristic variable, and checking, based on the value pairs which are formed whether significant changes occur in the activation speed.

Abstract: An electronically controllable braking system for a commercial vehicle is provided, including a service brake system having a front axle brake circuit with a front axle modulator, a rear axle brake circuit, and a central control module. The central control module is configured to implement a braking specification via the front axle brake circuit and the rear axle brake circuit. A parking brake module that is configured, in the event of a defect in the central control module, to process the braking requirement and to output a rear axle redundancy brake pressure to spring-brake parts for the redundant implementation of the braking specification. It is further provided that the front axle modulator is configured to process the braking specification and to output a front axle redundancy brake pressure to the front axle brakes for the further redundant implementation of the braking specification.

Abstract: The disclosure relates to an electronically controlled pneumatic brake system for a utility vehicle, including a front-axle brake circuit with a single-channel front-axle modulator for the control of first and second front-axle service brake actuators, wherein first and second front-axle ABS valves are provided; a rear-axle brake circuit with a single-channel rear-axle modulator for the control of first and second rear-axle service brake actuators, wherein first and second rear-axle ABS valves are provided; a braking-value sensor which has an electrical terminal for the provision of an electronic brake demand signal; and a central electronic control unit which receives the electronic brake demand signal and controls the front-axle and rear-axle modulators. Here, it is provided that the central electronic control unit is formed as a structural unit with the rear-axle modulator and/or the front-axle modulator.

Abstract: Disclosed is an axle modulator for regulation of the brake cylinder pressure on one or both sides of at least one axle of a vehicle, for example a vehicle with a pneumatic brake system. Revolution rate sensors and brake lining wear sensors can be connected for readout. The axle modulator is provided with separate connections for active and passive revolution rate sensors. Also disclosed is a regulating unit for an axle modulator. Further disclosed is a braking system with at least one brake control unit and with at least one regulating unit and/or an axle modulator.

Abstract: A method for determining jumps and/or inflection points in an activation characteristic of an activation unit includes activating the activation unit using an activator, wherein different activation areas, separated from one another by the jumps and/or inflection points, are defined by the activation characteristic. Different activation forces for activating the activator are respectively set in the activation areas. The jumps and/or inflection points are determined by activating the activator by continuously determining activation travel values of the activator, respectively assigning an activation speed characteristic variable to the determined activation travel values, continuously forming value pairs from the determined activation travel value and the assigned activation speed characteristic variable, and checking, based on the value pairs which are formed whether significant changes occur in the activation speed.

Abstract: In a method for stabilizing the driving behavior of a tractor-trailer combination, a tilting inclination variable is obtained and a tilting limit is determined on the basis of the tilting inclination variable and is prescribed to a vehicle movement dynamics control system. A vehicle movement dynamics control device carries out the method. In order to improve the stabilization of the driving behavior of tractor-trailer combinations with different loads of the individual vehicles, the respective tilting inclination variable is determined at a plurality of vehicles of the tractor-trailer combination, and the value of the tilting inclination variable for the determination of the tilting limit which is decisive for the determination of the tilting limit is obtained from the tilting inclination variables.

Abstract: In a method for stabilizing the driving behavior of a tractor-trailer combination, a tilting inclination variable is obtained and a tilting limit is determined on the basis of the tilting inclination variable and is prescribed to a vehicle movement dynamics control system. A vehicle movement dynamics control device carries out the method. In order to improve the stabilization of the driving behavior of tractor-trailer combinations with different loads of the individual vehicles, the respective tilting inclination variable is determined at a plurality of vehicles of the tractor-trailer combination, and the value of the tilting inclination variable for the determination of the tilting limit which is decisive for the determination of the tilting limit is obtained from the tilting inclination variables.

Abstract: For stabilizing a vehicle, a steering angle of at least one steered front axle and/or additional axle is changed by automatic forced steering Additional drive stabilization is achievable by initiating an adjustment of a changed steering angle of the steered front axle and/or additional axle in response to a tilting tendency of the vehicle recognized via a tilt-stability control device as above a tilt limit, in addition to initiating a vehicle delay for reducing this tilting tendency. This counteracts an understeering or oversteering influence of the vehicle delay Additionally or alternatively, additional drive stabilization is achievable by determining the direction of movement in the wheel contact point of an additional axle wheel on the steered additional axle relative to the vehicle's longitudinal axis and adjusting the steering angle of the steered additional axle based thereon to reduce the drift angle of the additional axle wheel relative to its direction of movement.