Abstract: The invention relates to a fuel injection valve having an axially movable valve needle (13) having at least one closing body support (17) and a spherical valve closing body (18). The closing body support (17) accommodates the valve closing body (18) in a downstream end area (46). The valve closing body (18) has at least one flattened zone (24) on its surface, whereby the flattened area has an axial extension component, and whereby at least one channel (47) for a flow of fuel is formed between the at least one flattened zone (24) and an inner wall of the closing body support (17). The fuel injection valve is especially well suited for use in fuel injection systems of mixture-compressing, SI internal combustion engines.

Abstract: A method and an arrangement for operating and monitoring an internal combustion engine are suggested wherein, in at least one operating state, operation is undertaken with a lean air/fuel ratio. At least one quantity, which represents the degree of actuation of the accelerator pedal, and a quantity, which represents the engine rpm, are detected and, in at least one operating state, only an operation of the engine with an approximately stoichiometric or rich mixture is permitted and/or only an operation with limited air supply is permitted. The operation is monitored on the basis of at least one operating variable of the engine.

Abstract: The microwave sensor produces an electrical output signal according to a position or displacement of a movable mechanical part (2), especially a valve needle in an injector valve for injecting fuel into an internal combustion engine. This position or displacement sensor includes a cavity resonator (40,70) provided with walls bounding a cavity (4,7) dimensioned for microwaves of a predetermined frequency and an antenna (8,14) for reception of the microwaves in the cavity. The end (3) of the movable mechanical part (2) protrudes into the cavity. A hybrid evaluating circuit (9) is connected with the antenna, which detects changes in the microwave radiation fed into and coupled out of the cavity, e.g. phase relationships, which depend on the position of the mechanical part (2), so that small position changes in very tight spaces are accurately determined.

Abstract: A feeding device for feeding fuel, comprising a feed pump, an electric motor driving the feed pump, filtering means, a housing composed of synthetic plastic and formed as a filter casing for receiving the electric motor, the feed pump and the filtering means, the filter casing having concentric housing walls, and a metal jacket arranged at the concentric housing walls at least at one side.

Abstract: A redundance reduction method used in coding multichannel signals is proposed, where signals available in digitized form are predicted. A prediction error is computed, which is subsequently quantized and loaded for transmission over a transmission path. In the method, prediction is performed linearly in a backward-adaptive fashion for at least two channels simultaneously, and the statistical relationships of the signals within a channel and between at least two channels is taken into account. A device for decoding redundance-reduced multichannel signals is proposed. It comprises a linear backward-adaptive predictor for at least two channels.

Abstract: A radio receiver (1), in particular a car radio, is proposed, which is used for a space-saving feed-in of an antenna cable (15). A radio telephone (30) is integrated into the radio receiver (1). An antenna connector (5) is provided on a rear or lateral wall (10) of the housing of the radio receiver (1). The antenna connector (5) for the antenna cable (15) extends in a parallel direction or a narrow angle in respect to the rear or lateral wall (10) of the housing. The antenna connector (5) is arranged in a bulge (45) of the rear or lateral wall (10) of the housing.

Abstract: A braking device for a vehicle having rear and front pressure receivers (21, 22) connected with a mechanical pressure generator (31) and an electrical pressure generators (31, 32) and selectively controlled by solenoid valves (61, 62, 63). An inlet (222) of the front pressure receiver (22) is connected directly to an outlet (324) of the electrically controlled pressure generator (32) while a solenoid valve (61) selectively connects an outlet (313) of the mechanically controlled pressure generator (31) to the inlet (222) of the front pressure receiver (22) to control braking. The fluid pressure communicated from the electrically controlled pressure generator (32) being selectively altered to create a desired braking for the vehicle.

Abstract: Proposed is an igniting device having a radio frequency resonator. Moreover, the resonator can be designed as a strip waveguide on a printed-circuit board. Several resonators can be connected in a pattern to the RF source via p-i-n diodes. At the cold end, the resonator is electrically isolated but connected to ground, in terms of the radio frequency, via a capacitor. In this manner, ion currents can be simply coupled in subsequent to the application of an auxiliary voltage.

Abstract: An arrangement that can be implemented with a simple circuit includes a measuring resistance that can either be connected in addition to a load or connected in place of the load. Furthermore, elements are provided that record the change in resistance resulting from the connection of the measuring resistance and signal when the change in resistance differs from a predefined value.

Abstract: A method for optimized power and efficiency regulation of rotary current generators with an associated converter bridge, in particular synchronous machines, is described in which at least three regulation ranges are defined, within which ranges the regulation of the generator takes place by different criteria. The definition of the regulation ranges is done in particular as a function of rpm and as a function of the desired set-point power. The regulation extends both to the exciter current and to the stator current and is done by means of various regulators that exchange information with one another.

Abstract: The precharging device is part of a hydraulic brake system of a vehicle and serves to impose brake fluid under pressure selectively on a brake assembly, by means of a charging unit. To activate the imposition of brake fluid, the charging unit is operatively connected to a fuel supply system. The charging unit is preferably embodied as a piston unit.

Abstract: A pressure sensor device has a mounting rack and a sensor casing arranged on the mounting rack and closed except for one opening. The pressure sensor includes a pressure pickup that is arranged inside the sensor casing and electrically connected to the mounting rack. Also included in the pressure sensor is a pressure connection which includes a connector and a pressure channel having an inlet and an outlet, with the pressure connection being designed as a molded part produced independently of the sensor casing and securable on the mounting rack. An outlet of the pressure channel designed on the molded part is connected at least indirectly to an opening in the sensor casing.

Abstract: An arrangement for detecting the condition of a high pressure gas discharge lamp when switched on is described, where a control unit either injects a defined current into the lamp and measures the resulting voltage drop, or it applies a defined voltage to the lamp and measures the lamp current flowing in so doing and, depending on the result, it starts the lamp according to the condition of the lamp thus determined.

Abstract: A method and an apparatus for controlling operations in a vehicle, at least two processors accessing at least one memory device and a simultaneous read and/or write access of the at least two processors to the identical address of the memory device during program execution being prevented. The identical address is detected by way of an address comparison, and as a function of this address comparison a signal is transmitted to at least one processor. In particular, a first signal is transmitted to a first processor and a second signal to a second processor. Program execution by at least one of the at least two processors is thereby brought to a halt by the signal, or the respective processor is halted.

Abstract: An optical drilling device using a laser beam (5), having an optical arrangement located in the beam path for guiding the laser beam (5) along a circular cutting path and a focusing lens system (6) located downstream from the arrangement and focusing the laser beam (5) onto a workpiece (7). Maintaining a simple design, the various parameters can be easily set by providing the optical arrangement with a separately rotatable image rotator (4) which guides the beam along the cutting path.

Abstract: The sensor circuit arrangement includes a sensor (23; 53) that produces an alternating voltage sensor signal that varies according to a measured variable; first and second current supplying circuits (21, 51) connected to respective sensor terminals to apply first and second output voltages (U1, U2) to the respective terminals; a counter-coupling network (24, 54) coupling the current supplying circuits to provide respective constant currents to the sensor (23, 53) and a sensor signal processing circuit portion. The sensor signal processing circuit portion includes an operational amplifier (13,46) connected across the sensor terminals, a low-pass filter (20,50) connected to the operational amplifier and a capacitor (19, 46) connected to the operational amplifier to generate an alternating output signal having an amplitude depending on the magnitude of the measured variable. The low-pass filter produces a filter output signal indicative of a temperature-dependent internal sensor resistance.

Abstract: A lock system for a vehicle, including an authentication module for receiving authentication code transmitted from a remote electronic key and for generating an authentication signal, and an ignition lock assembly having an ignition switch unit, a part movable between at least first and second positions to activate the ignition switch unit, an electronic lock module responsive to the authentication signal for generating a lock release signal, and a lock mechanism which inhibits use of the vehicle and in response to the lock release signal enables use of the vehicle.

Abstract: A microcontroller with a self-prompting (self-wake-up) device, particularly for use in electrical adjusting drives, having a control device for specifying an active and an inactive operating state to economize on supply power, contains an oscillator for emitting a prompting signal or a clock frequency. This oscillator is a low-frequency, power-saving oscillator. Provided in the microcontroller is a circuit, preferably a disconnectible phase-locking loop, which, from the low frequency of the oscillator, generates a substantially higher clock frequency for microcontroller core. The low-frequency oscillator is also integrated as an original component into the microcontroller. An undervoltage detection, whose output signal is able to be supplied directly to the microcontroller core, indicates undervoltage conditions immediately. Using a time-switch logic which monitors a non-operative time of the microcontroller core, the core is activated again via a prompting circuit.

Abstract: The invention relates to a piston pump, for instance for an electrohydraulic vehicle brake system. The invention proposes that a pump piston, on an end toward an eccentric element, be sealed off with a sealing ring, such as a quad ring, that has two axially spaced-apart sealing lips, which sealing ring has radial openings, and also proposes that interstices between the axially spaced-apart sealing lips be connected, through a fluid line, to a fluid supply container from which the piston pump aspirates fluid, or to a pump inlet, whereby in the event of a leak of a sealing lip, the piston pump will aspirate brake fluid through the fluid line and prevent the piston pump from aspirating air from the direction of an eccentric element.

Abstract: An electrical device, in particular a car radio, which requires less manufacturing outlay. The electrical device includes a display device and operating control elements. A transparent panel is provided, in front of which is arranged the display device. The panel has a contact strip with connection contacts for the display device. Arranged on the panel are contact surfaces, which are able to be contacted via the operating control elements. The contact strip has connection contacts for the contact surfaces.