Knorr-bremse Systeme Fuer Nutzfahrzeuge Gmbh

Tamas Adler

Huba Nemeth

Csaba Horvath

Kornel Straub

Tamas Rapp

Ferenc Zeman

A brake system includes a first electric power-supply-unit (EPSU) and a first electronic-brake-control-unit (EBCU). The first EBCU is connected to the first EPSU. Also, the brake system includes a second EPSU and a second EBCU, which is connected to the second EPSU. The brake system further includes a first axle-pressure-modulator (APM) for service-brake-chambers associated with a first vehicle-axle. The brake system includes a second APM for spring-brake-cylinders for a second vehicle-axle. The brake system includes two power-supply-switches (PSS). A first PSS is connected to the first EBCU, the second EBCU and the first APM and configured to connect the first EBCU or the second EBCU to the first APM. A second PSS is connected to the first EBCU, the second EBCU and the second APM and configured to connect the first EBCU or the second EBCU to the second APM.

Brake system for a vehicle

A brake system for a vehicle includes a first axle-pressure-modulator (APM) for service-brake-chambers associated with a first vehicle-axle, a second APM for spring-brake-cylinders associated with a second vehicle-axle, wherein the second APM is connected to an electronic-brake-control-unit configured to issue a first electric-control-signal for controlling the first APM and a second electric-control-signal for controlling the second APM, a further electronic-brake-control-unit configured to issue a further first electric-control-signal for controlling the first APM and a further second electric-control-signal for controlling the second APM, an electronic-parking-brake-controller configured to issue a second pneumatic-control-signal for controlling the spring-brake-cylinders, and a pressure-modulator-unit configured to convert a pneumatic signal or an electric signal issued by the electronic-parking-brake-controller into a first pneumatic-control-signal for controlling the first APM.

Brake system for a vehicle, vehicle and method of controlling a brake system for a vehicle

A brake system for a vehicle includes a first axle pressure modulator (APM) for service-brake-chambers for a first vehicle-axle, a second axle pressure modulator for spring-brake-cylinders for a second vehicle-axle, the second APM being connected to an electronic-brake-control-unit, which is configured to issue a first electric-control-signal for controlling the first APM and a second electric-control-signal for controlling the second APM, an intelligent foot brake module, which is configured to issue a first pneumatic-control-signal for controlling the first APM and a second pneumatic-control-signal for controlling the second APM, an electronic parking brake controller, which is configured to issue a second pneumatic parking brake signal for controlling the spring-brake-cylinders, and a pressure control valve, which is configured to convert the second pneumatic parking brake signal into a first pneumatic parking brake signal for controlling the first APM.

A brake system (BS) includes first/second electric-power-supply-units (EPSU), and an electronic-brake-control-unit (EBCU) connected to the first EPSU. The BS includes a first axle-pressure-modulator (APM) for service-brake-chambers for a first vehicle-axle (VA). The first APM is connected to the EBCU. The BS includes a second APM for spring-brake-cylinders for a second VA. The second APM is connected to the EBCU. The BS includes a redundant-brake-pedal-sensor (BPS) connected to the EBCU. The BS includes first/second pressure-modulators (PM), which are connected to the second EPSU and redundant BPS. The first/second PMs are respectively fluidically connected to the first/second APMs. The redundant-BPS issues a first control-signal (CS) for the EBCU and a second CS for controlling the first/second PMs. The first PM commands pneumatic-control-pressure for the first APM depending on the second CS from the redundant-BPS. The second PM commands pneumatic-control-pressure for the second APM depending on the second CS from the redundant-BPS.

A redundant brake system () for an autonomously driven vehicle is provided. The redundant brake system () comprises an electro-pneumatic service brake system, wherein the redundant brake system () is provided with at least three control circuits for controlling the electro-pneumatic service brake system.

Redundant brake system for an autonomously driven vehicle

A brake system, for a vehicle, includes a first electric-power-supply-unit (EPSU), and an electronic-brake-control-unit (EBCU) connected to the first EPSU. Furthermore, the brake system includes a first axle-pressure-modulator (APM) for service-brake-chambers associated with a first vehicle-axle. The first APM is connected to the EBCU. The brake system includes a second APM for spring-brake-cylinders associated with a second vehicle-axle. The second APM is connected to the EBCU. The brake system further includes a second EPSU, and an electronic-parking-brake-controller (EPBC). The EPBC is connected to the second EPSU. The EPBC is fluidically connected to the spring-brake-cylinders. The brake system includes a pressure modulator unit (PMU) fluidically connected to the first APM. The PMU is connected to the EPBC, which issues a control-signal for controlling the PMU. The PMU commands pneumatic-control-pressure for the first APM depending on the control-signal from the EPBC.

A brake system for a vehicle, the vehicle including a service brake control module and a parking brake with at least one spring brake chamber, the service brake control module controlling at least a first pressure module to brake a first set of wheels. The brake system comprises a parking brake control module configured to control the spring brake chamber to brake a second set of wheels and to control the first pressure module to brake the first set of wheels.

Vehicle brake system

A compressed air system for a motor vehicle with an air supply system includes an electric drive motor, which can be controlled for variable speed, an air compressor coupled to be driven by the electric drive motor, an electric power supply for supplying electric power to the electric drive motor, at least one air reservoir connected with the air compressor to receive air from the air compressor, an air utilization system connected to the air reservoir to receive air from the air reservoir, and a controller to control the speed of the electric drive motor. The controller controls the electric drive motor to determine its speed depending upon at least one of the following signals: a signal representing the activation status of an accelerator pedal of the vehicle, a signal representing the speed of the vehicle, a signal representing the temperature of the power supply, a signal representing the temperature of the electric drive motor, a signal representing the wetness level of the air compressed by the air compressor, a signal representing the load of the air compressor, a signal representing the running time of the air compressor, or a signal representing the status of the electric power supply.

Compressed air system for a motor vehicle

A compressed air system for a motor vehicle with an air supply system, including: an electric drive motor, which can be controlled for variable speed, an air compressor coupled to be driven by the electric drive motor, an electric power supply for supplying electric power to the electric drive motor, at least one air reservoir connected with the air compressor to receive air from the air compressor, an air utilization system connected to the at least one air reservoir to receive air from the at least one air reservoir, a controller to control the speed of the electric drive motor. The controller controls the electric drive motor to determine the speed of the electric drive motor so that during filling of the air reservoir, when the pressure level in the air reservoir passes a setpoint that is between a minimum level and a higher cut off pressure level, the controller changes the compressor speed so that specific power consumption per unit mass of air compressed is decreased.

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Budapest, Hungary

Tamas Adler