Abstract: A system for testing brake systems of motor vehicles at assembly lines of automobile manufacturers, wherein the brake pedal is operated using an automatically controlled device and wherein the pedal travel and pedal force are measured using associated instruments is disclosed. A travel-force curve is determined based on pedal travel and pedal force during pedal movement, which is analyzed using a physical brake system model. The brake system model isolates design influences of the individual components. Furthermore, the travel difference between different benchmarks of various vehicles is taken into consideration when calculating the pedal travel to compensate the variable influence of the running clearance on pedal travel.

Abstract: A digital printing machine includes a printing material transport device, an inkjet print head having a nozzle plate, and a capping element. The inkjet print head is adjustable into a first print head position relative to the capping element and the capping element is adjustable into a capping position relative to the inkjet print head. The capping element temporarily covers the nozzle plate when the inkjet print head is in the first print head position and the capping element is simultaneously in the capping position.

Abstract: A method for avoiding collisions in a digital inkjet printing machine, a method and a device for actuator-based lifting movement of inkjet heads. A sensor/camera monitors the sheets as they travel towards the inkjet heads. In order to avoid collisions, the inkjet heads are raised and lowered again individually and in an oscillation-optimized manner when a defective sheet is detected. The machine does not need to be stopped in the event of defective sheets. Advantageously, rejects can thus be reduced and the performance of the machine can be exploited better.

Abstract: A digital printing machine includes a printing material transport device, an inkjet print head having a nozzle plate, and a capping element. The inkjet print head is adjustable into a first print head position relative to the capping element and the capping element is adjustable into a capping position relative to the inkjet print head. The capping element temporarily covers the nozzle plate when the inkjet print head is in the first print head position and the capping element is simultaneously in the capping position.

Abstract: In a device for monitoring and switching a load circuit, having an input part and an output part, having switching inputs to connect a controller to the input part, having switching outputs to connect at least one load circuit with at least one load to be switched to the output part, having at least one load switch to switch, in particular to switch on and off, the at least one load, having a first fault detection circuit, connected in parallel with the load circuit, to detect faults in the load circuit, and having a second fault detection circuit, connected in series with the load circuit, to detect faults in the load circuit, the input part has an input circuit which converts switching commands of the controller incoming via the switching inputs into switching processes of the load switches. The first and the second fault detection circuit respectively generate intermediate fault signals which are logically linked in a logic circuit to form an overall fault signal.

Abstract: The invention relates to a device for monitoring and switching a load circuit, having an input part and an output part, having switching inputs to connect a controller to the input part, having switching outputs to connect at least one load circuit with at least one load to be switched to the output part, having at least one load switch to switch, in particular to switch on and off, the at least one load, having at least one fault detection circuit to detect a fault in the load circuit and to generate at least a first fault signal in the output part, and having a galvanic isolation stage for galvanically isolated transmission of this first fault signal and/or a second fault signal derived from this first fault signal from the output part to the input part. According to the invention the input part has an input circuit which converts switching commands of the controller incoming via the switching inputs into switching processes of the load switches.

Abstract: A system for testing brake systems of motor vehicles at assembly lines of automobile manufacturers, wherein the brake pedal is operated using an automatically controlled device and wherein the pedal travel and pedal force are measured using associated instruments is disclosed. A travel-force curve is determined based on pedal travel and pedal force during pedal movement, which is analyzed using a physical brake system model. The brake system model isolates design influences of the individual components. Furthermore, the travel difference between different benchmarks of various vehicles is taken into consideration when calculating the pedal travel to compensate the variable influence of the running clearance on pedal travel.

Abstract: A method for avoiding collisions in a digital inkjet printing machine, a method and a device for actuator-based lifting movement of inkjet heads. A sensor/camera monitors the sheets as they travel towards the inkjet heads. In order to avoid collisions, the inkjet heads are raised and lowered again individually and in an oscillation-optimized manner when a defective sheet is detected. The machine does not need to be stopped in the event of defective sheets. Advantageously, rejects can thus be reduced and the performance of the machine can be exploited better.

Abstract: The invention relates to a device for monitoring and switching a load circuit, having an input part and an output part, having switching inputs to connect a controller to the input part, having switching outputs to connect at least one load circuit with at least one load to be switched to the output part, having at least one load switch to switch, in particular to switch on and off, the at least one load, having at least one fault detection circuit to detect a fault in the load circuit and to generate at least a first fault signal in the output part, and having a galvanic isolation stage for galvanically isolated transmission of this first fault signal and/or a second fault signal derived from this first fault signal from the output part to the input part. According to the invention the input part has an input circuit which converts switching commands of the controller incoming via the switching inputs into switching processes of the load switches.

Abstract: In a device for monitoring and switching a load circuit, having an input part and an output part, having switching inputs to connect a controller to the input part, having switching outputs to connect at least one load circuit with at least one load to be switched to the output part, having at least one load switch to switch, in particular to switch on and off, the at least one load, having a first fault detection circuit, connected in parallel with the load circuit, to detect faults in the load circuit, and having a second fault detection circuit, connected in series with the load circuit, to detect faults in the load circuit, the input part has an input circuit which converts switching commands of the controller incoming via the switching inputs into switching processes of the load switches. The first and the second fault detection circuit respectively generate intermediate fault signals which are logically linked in a logic circuit to form an overall fault signal.

Abstract: In a spring-action suction head for separating sheets from a sheet stack, a first suction chamber, which can be subjected to vacuum is provided for lifting the sheet. The first suction chamber is surrounded coaxially by a second suction chamber, which can be subjected to vacuum, for holding and lowering the spring-action suction head in a controlled manner.