Abstract: A timing gear for triggering a gas exchange valve for adjusting the output of an internal combustion engine through the opening and closing of the gas exchange valve and a method for triggering the gas exchange valve, where at least one of the opening and closing of the gas exchange valve is executed as a function of a delay interval when opening and/or closing the gas exchange valve and where in order to determine the delay time, the gas exchange valve is adjusted for the length of a predetermined adjustment interval and at least one of the opening and closing of the gas exchange valve is detected.

Abstract: A vacuum-cleaner wand has an inner tube formed with an axially extending row of radially outwardly open recesses, an outer tube, and a latch base part fixed to the outer tube and formed with an elastically deformable web carrying a latching block displaceable radially into and out of the recesses. The base part also is formed with a pair of radially outwardly projecting guide walls forming radially inwardly directed guide edges. A movable latch part fitting over the base part is formed with a pair of radially inwardly projecting guide walls forming radially outwardly directed guide edges sliding on the guide edges of the base part for sliding between axially offset latched and unlatched positions. A radially inwardly projecting actuating bump formed in the movable part bears in the latched position radially inward on the block and holds the block in the inner position.

Abstract: The invention relates to a connection (18) between a shaft end (14) of a gas exchange valve (1) of an internal combustion engine and a final control element (2) of a valve actuator (4), with at least two shell-shaped wedge-shaped pieces (22, 24), surrounding the shaft end (14) and braced on the final control element (2), whose radially outer circumferential surface extends conically and which are surrounded by at least one conical clamping sleeve (26) whose radially inner circumferential surface extends complimentary to the cone angle of the wedge-shaped pieces (22, 24), wherein on the radially inner circumferential surface (38) of the wedge-shaped pieces (22, 24) and on the radially outer circumferential surface (40) of the shaft end (14) of the gas exchange valve (1), protrusions (42) and recesses (44) that mesh with one another are provided.

Abstract: The invention relates to a device of the build-up of pressure in supply systems (6, 11, 20, and 23) to components (19, 36) on internal combustion engines (2). The invention includes directly couples lubricant systems and pressure-generating systems (3, 8), an electric fuel pump (34), as well as a control apparatus for determining lubricant pressures. A supply module (12, 34) is provided with an independent drive (16) and supplies lubricant in the lubricant oil circuit (24) or to selected lubricating position, or fuel into a fuel supply (36). The supply module (12, 34) can optionally include a pressure converter (30).

Abstract: Described is an apparatus for rapid pressure buildup in a motor vehicle reservoir-type injection system (common rail) supplied with fuel by a high-pressure pump, the apparatus including a piston, which defines a pressure chamber that can be enlarged counter to the force of a spring element prestressed counter to the piston, which pressure chamber communicates with the feed pump and with the device supplied with the pressure medium. A locking device acting on the piston is provided, by which the piston can be locked in a locking position, assumed as a result of the pressure, built up in the pressure chamber by the feed pump, counter to the prestressing of the spring element and can be untensed after unlocking into a position that reduces the size of the pressure chamber. By the relaxation of the spring, the system pressure is built up suddenly.

Abstract: A fuel injection pump for internal combustion engines having at least one additional pump element for feeding fluid from a low-pressure side to a high-pressure side. With this fluid, a hydraulic valve controller of the engine can be driven.

Abstract: A method and a device for operating an internal combustion engine including a plurality of cylinders, determine whether a torque of the internal combustion engine is above a torque threshold value. If the torque is less than the torque threshold value, all the cylinders of the engine are operated in a lean operating state. If the torque is greater than or equal to the torque threshold value, a first number of cylinders of the engine is operated in a homogeneous operating state, and the remaining cylinders of the engine are operated in the lean operating state.

Abstract: A method and a device for controlling a gas fill of a plurality of cylinders in an internal combustion engine having variable valve timing, in which a detection signal of a filling sensor is sampled with a sampling rate. Furthermore, a detection interval is determined for one cylinder. The sampling values for ascertaining a sampling-value sum are added up within this detection interval. In addition, a number of sampling values within the first detection interval are counted for ascertaining a first count value. The air mass filled into the first cylinder is then ascertained by forming a quotient from the sampling-value sum and the count value.

Abstract: The present invention relates to a method and a circuit system for operating a solenoid valve (MV), particularly for actuating an electrohydraulic gas-exchange valve control, an injection valve, or an intake or exhaust valve of an internal combustion engine. To permit the simplest possible driving of the solenoid valve (MV), it is proposed that the solenoid valve (MV) be acted upon in a controlled manner in a cycle including three phases, in which in a pull-up phase, the solenoid valve (MV) is connected for a predefined time duration (T—1) to a first voltage (U—1) of predetermined magnitude for generating a pull-up current, in a holding phase is connected to a second voltage (U—2) of predetermined magnitude for generating a holding current, and in a de-energize phase is separated from both voltages (U—1, U—2).

Abstract: A control device and a method for operating a control device which contains function modules, a scheduler and a priority manager. The control device is connected via data lines to a system to be controlled. The priority manager assigns to the modules modifiable priorities which are then taken into account when the modules are activated by the scheduler.

Abstract: A vacuum-cleaner pipe assembly can have inner and outer pipes telescopingly engaged with one another and on a sleeve surrounding the inner pipe, a locking body which engages in selected detents formed on the inner pipe. A rocker or rotatable eccentric in a housing on the sleeve surrounding the inner pipe bears directly against the locking body and is biased by a spring into the locking position.

Abstract: The angular position detection device for the angular position of a rotatable part includes a transducer wheel rigidly connected with the rotatable part, an increment transducer and an absolute angle transducer arranged for simultaneous detection of the angular position of the transducer wheel and a control device including a computing unit and a monitoring module. Signals from both transducers that are characteristic of the rotational position of the transducer wheel are simultaneously fed to both the computing unit and the monitoring module. A redundant method of reliably ascertaining the rotational position of the rotatable part without periodic resynchronization of the increment transducer is also described.

Abstract: A method and a device for modifying a torque of an internal combustion engine including at least one first cylinder with an exhaust valve including a variable valve control, in which it is determined whether there is a demand for modifying the torque within a first working cycle of the at least one mfirst cylinder, and the basic triggering of the exhaust valve of the first cylinder is modified in the first working cycle when it is determined that it is necessary to modify the torque during the first working cycle.

Abstract: A fuel injection pump for internal combustion engines is proposed, which has additional means for feeding a fluid from a second low-pressure side to a second high-pressure side. With this fluid, a hydraulic valve controller of the engine can be driven.

Abstract: In the process for controlling industrial operations and processes, a complex control program is processed by a microprocessor of a controller (10) under real-time conditions. The complex control program is divided into tasks. Each task is assigned a priority and an activation event. The activated task with the highest priority for processing is selected. Processing of a task can be interrupted on the basis of a subsequent request for processing a higher-priority task Processing of the lower-priority task is continued at the point of the interruption, after the processing of the higher-priority task is concluded. This process is characterized in that tasks can be divided into a number of subtasks to be processed sequentially, and within configurable, coherent and non-overlapping priority ranges, tasks can interrupt other lower-priority tasks only between two successive subtasks or at interruption points explicitly inserted by the user.

Abstract: A detection of an angular position of a rotatable part is performed by associating a transducer with a transducer wheel, transmitting signals of the transducer means to a control device, and simultaneously detecting a position of the transducer wheel by the transducing means which include an increment transducer and an absolute angle transducer operative for simultaneous detection of a position of the transducer wheel.

Abstract: A fault diagnostic device for monitoring and detecting faults in technical functions, in particular in technical functions of a motor vehicle, includes a plurality of monitoring devices for monitoring technical functions, whether they have a fault or not. The fault diagnostic device also includes a storage device for storing (data concerning) direct mutual dependencies of the functions to be monitored, in the form of a matrix representation in the logical YES/NO form. Furthermore, the fault diagnostic device includes a processing device for determining the capacity for validation of faults in corresponding technical functions to be detected in the monitoring, in view of the matrix representation; for controlling the monitoring devices for carrying out the monitoring activities; and, assuming the capacity for validation, for validating the faults to be detected in the monitoring.