Abstract: A trailer electronic braking system includes a braking device capable of generating a braking force on a wheel on the trailer, a brake force into the brake cylinders being controllable by a braking ECU. The braking ECU is connected to a standards compliant communication bus on said trailer and is adapted to receive data inputs from sensors on the trailer. An interface to trailer electronics and a communications interface are also provided. The brake system is further adapted to transmit a trailer identifier such as an SSID, such that the trailer identifier can be paired with a further device, such as a mobile telephone associated with a tractor driver, the further device having previously been provided with the trailer identifier.

Abstract: An electronic circuit configuration for connecting an active rotary speed sensor.

Abstract: A method and device for correcting an error caused by electromagnetic interference, in a signal of an inductive displacement sensor or angle sensor, in that when known activation of at least one component which causes electromagnetic interference occurs and there is a known error resulting therefrom in the sensor signal of the inductive displacement sensor or angle sensor the error in the measured sensor signal is corrected.

Abstract: A valve plate for a piston compressor, in particular for air compression in motor vehicles, consists of two mutually facing and connected plate halves, each of which is made of a diecast material such that the valve plate consists of two diecast plates. The two diecast plates are joined together by coating or gluing, the sealant in the sealing gap between the two diecast plates being protected against thermal effects in the region of the pressure apertures by protective bodies (sleeves, steel rivets) that can be inserted in the pressure apertures.

Abstract: In a piston-type compressor, especially for generating compressed air in motor vehicles, there is a suction plate on the underside of a valve support, clamped between the cylinder and cylinder head, facing the compressor piston. The suction plate consists of an active and an inactive section. The active section, preferably consisting of a tongue-shaped active plate fitted in the center, operates in relation to suction apertures in the valve support while the inactive section of the suction plate has at least one delivery aperture in active connection with at least one delivery aperture in the valve support. The suction plate takes the form of a disc, thus virtually eliminating waste space. The suction plate can be fitted between the cylinder and the valve support without additional components; when used in an energy-saving system, the suction plate can be rotated to produce differing degrees of overlap between suction and delivery apertures.

Abstract: Replace the abstract in the instant application with the following abstract: A compressor has a reciprocating piston operating in a working area to compress the working medium, a drive unit for the reciprocating movement of the piston, and an intake and discharge device for supplying and expelling the working medium. The liner, in which the piston reciprocates, is manufactured as one piece with a valve plate. Further, the slider crank mechanism used to drive the piston is provided as a drive unit. As a result, the size of the compressor can be substantially reduced, virtually vibration-free motion is achieved, and the compressor reliability is appreciably enhanced.

Abstract: A method and a device for detecting rotational speed with an inductive sensor in which a sinusoidal potential is induced by a magnet wheel and then fed to a filter with a comparator connected downstream of the filter and therefrom into a square-wave signal that is essentially proportional to the rotational speed of the magnet wheel. This output signal of the comparator is evaluated in a microcomputer. In this evaluation, only the same type of edges of the comparator signal are evaluated, specifically those in which the intervals fluctuate less when considered over a certain time span. The microcomputer here can initially evaluate both types of edges, that is, positive and negative edges, and then use those edges in which smaller fluctuations, that is, interference, are determined for calculating the rotational speed. The microcomputer can also first evaluate only one type of edges and change over to edges of the other type only if the former displays interference above a present value.