Abstract: The invention relates to a motor vehicle comprising a compressed-air braking system. Said vehicle has two braking cylinders, which can be impinged by compressed-air from a compressed-air reserve by means of a manually actuated brake valve. The braking cylinders have ABS pressure-control valves, which can be selectively impinged by compressed air from the compressed-air reserve, using a slip control valve. A stability sensor detects a motor vehicle position and a control device selectively supplies the slip control valve and the ABS pressure-control valves with compressed air, in accordance with the signals of the stability sensor.

Abstract: In a system for controlling a brake valve, the supply voltage available for controlling the electromagnet of the brake valve is continually measured during operation and the effective value of the voltage present at the coil of the electromagnet is varied by varying the duty factor of the pulse times according to the supply voltage supplied at the time.

Abstract: A method and a system for data protection of fixed and learned control data of duplicated, program-controlled computers, in which the control parameters are stored in an EEPROM. The memory available in the EEPROM is divided into three areas. Each area is monitored using a check sum (check sum 1, check sum 2, check sum 3) that is stored therein. Only the self-learned variables are maintained redundantly. Thus, the ability to store more data than previously in the EEPROM with the same data protection and the same accessibility is provided, thus allowing more flexible solutions with respect to varying customer requirements to be offered.

Abstract: A device for current or voltage supply in a vehicle trailer or vehicle support which is connected with a pulling vehicle through at least one braking light conductor and an indicating conductor and has at least one electrical consumer, the device has an indicator formed so that a current flows through the indicator permanently and its intensity is selected so that in an error-free operation the indicator does not respond, while a voltage supply to an electrical consumer of the vehicle trailer is performed by the current.

Abstract: An internal-to-vehicle mechanism for monitoring the air pressure of a tire of a vehicle includes a sensor, detecting the tire pressure, which rotates, together with an electrotechnical first device, synchronously with the wheel and which, as a function of the tire air pressure that is determined, modifies parameters of the first device, namely the energy uptake of the first device. A stationary electrotechnical second device radiates an electric and/or magnetic, in particular electromagnetic, field through which the first device passes at, preferably, each wheel rotation with an uptake of energy from the field. A monitoring device detects the energy uptake and/or energy release of the second device.

Abstract: An apparatus for monitoring at least one sensor which has at least two terminals comprises first switching means and switchable means. A voltage can be applied to the first terminal of the sensor by actuation of the first switching means and a current can be established through the sensor by actuation of the first switching means and the switchable means. The apparatus also includes an analysis circuit with which at least peak voltage values can be determined from the signals generated by the sensor and conveyed to a calculation unit. Also connected to the sensor is a voltage divider which generates a signal which is also conveyed to the calculation unit. As a function of the actuation of the first switching means and switchable means, it is possible in the calculation unit, based on the peak voltage values conveyed to it, to identify a first faulty behavior of the sensor and to determine the resistance of the sensor.

Abstract: An air brake system having an anti-skid assembly is proposed, which is provided with a switch assembly comprising a relay valve and a magnet valve assembly. In the vicinity of the switch assembly there is a special line, with which the control pressure can be short-circuited with the brake pressure in the pressure maintenance phase. This largely prevents lagging of the brake pressure relative to the control pressure. The air brake system is intended for utility or commercial vehicles.

Abstract: An air brake system having an anti-skid apparatus, which is provided with a switch unit including a relay valve and a magnetic valve device. In the region of the switch unit there is a separate flow line with which control pressure can be short-circuited with the brake pressure in a pressure maintenance phase. This largely prevents lagging of the brake pressure relative to the control pressure.

Abstract: The brake system having an electrically controllable brake apparatus of a trailer, the brake apparatus includes a control unit which is connected via electrical lines to an electrical energy source of a tractor. In braking, electrical currents are brought about of such a magnitude as to cause severe voltage drops in long lines that the functional safety of the brake apparatus may be threatened. The brake apparatus therefore has an electrical energy storage device disposed on the trailer, which can be charged by an energy source of the tractor and can be discharged upon triggering of the brake apparatus of the trailer. Voltage drops in the relatively short lines between the energy storage device and the control unit are therefore minimum. The lines between the electrical energy source of the tractor and the energy storage device of the trailer are charged by only low charging currents. The voltage drop is therefore low despite the long line length.