Abstract: For operating a internal combustion engine a first characteristic value is determined depending on a distance integral of at least a portion of a control signal of an oxygen sensor control based on control reference signal characteristics across a given time period. Depending on the first characteristic value (KW—1) a quality value (GW—1) is determined. Depending on the quality value (GW1) either the existence or the non existence of an error of the exhaust sensor is detected.

Abstract: During a first driving cycle, a combustion process is controlled in at least one combustion chamber for the purpose of performing a check on an emission reduction system of an internal combustion engine. During a second driving cycle following the first cycle, a check is performed to establish whether an error in the emission reduction system was detected during the first cycle. An idle time between the first and the second cycles is determined, in the event of an error of the emission reduction system detected during the first cycle. During the second cycle, the combustion process in the at least one combustion chamber is only controlled for the purpose of the check on the emission reduction system, in the event of an error detected in the emission reduction system during the first cycle and in the event of the idle time being longer than a pre-determined repair time.

Abstract: In a method for operating an internal combustion engine with a crankcase breather venting into an intake tract, operating parameters of the internal combustion engine are measured 102. A mass flow of fuel from the crankcase into the intake tract is determined as a function of the operating parameters measured 103. The internal combustion engine is controlled 111 or monitored 108 as a function of the mass flow of fuel from the crankcase into the intake tract.

Abstract: Presented is a method for continuously determining the tensile force F in a cable of a parking brake that includes transmitting the tensile force F to a cable grommet coupled to a first end of an expandable intermediate part that includes a magnet and/or a magnetic sensor. The first end of the expandable intermediate part faces away from a drive spindle coupled to a second end of the expandable intermediate part. The method further includes changing the length of the expandable intermediate part in the direction of its longitudinal axis in response to the transmitted tensile force F, moving the magnet and the magnetic sensor relative to each other in response to the change in length, changing the signal voltage of the magnetic sensor in response to the relative movement between the magnet and the magnetic sensor, and determining the tensile force F from the respective signal voltage.

Abstract: A delivery unit for delivering fuel in a fuel tank comprises a prefilter and swirl pot which are produced as one piece. The prefilter is produced during die-casting of the swirl pot. The invention allows the delivery unit to be produced in an especially inexpensive manner.

Abstract: A transceiver circuit supports a bidirectional mode and the bidirectional transceiver circuit is signal-compatible with JEDEC SSTL 2. A differential transceiver circuit supports a bidirectional mode and is also signal-compatible with JEDEC SSTL 2. Finally, transceiver circuits which, in interaction with the bidirectional transceiver circuits, allow a bus system to be set up.

Abstract: A method for detecting expansive static objects from a vehicle in motion. For this purpose, the method employs a front camera that interacts with an image processing device. The front camera can detect road markings on the road. A lateral detection device detects objects in the blind spot of the vehicle. Additional detection devices detect minimal distances to laterally passing or following vehicles. A logic unit links the data of the image processing device of the front camera to the data of the remaining detection devices in such a manner that expansive static objects in the front detection range of the vehicle are detected and are included as such in the detection of the lateral and rear detection devices using the logic unit.

Abstract: An annular housing has an inner wall that is configured in the form of an inner cone. In the method for fixing the annular segment package, said package is either initially inserted into the annular housing and an annular sleeve the outer wall of which is configured in the form of an outer cone that is configured in a compatible manner to the inner cone of the annular housing, is subsequently inserted between the annular segment package and the annular housing and compressed on both sides, or is initially inserted into the annular sleeve and compressed, and the annular sleeve is subsequently inserted into the annular housing together with the annular segment package and compressed.

Abstract: A method for determining a criterion of the severity of an accident by means of an acceleration signal and a solid-borne sound signal. The signal edge direction of the absolute value of the acceleration signal is detected. If the signal edge of the absolute value of the acceleration signal drops, the solid-borne sound signal which occurs in the process is evaluated. The solid-borne sound signal may be integrated and the criterion of the severity of the accident is derived therefrom. This criterion of the severity of the accident can be used directly, or as a function of criteria, to trigger the protection devices.

Abstract: A turbocharger has a rotor housing. Said rotor housing has an insertion element. Said insertion element is configured such that the same forms an over-hanging spiral together with said rotor housing.

Abstract: In a method for improving the running smoothness of an internal combustion engine (1) which has at least one combustion chamber and at least one controllable actuator whose position has an influence on the combustion in the at least one combustion chamber, an irregular running value (f) of the internal combustion engine (1) is determined and compared with a predefined first irregular running limit value (f1thres), and in the event of the irregular running value (f) exceeding a predefined first irregular running limit value (f1thres), the actuator is moved from a starting position into an end position while the combustion in all of the combustion chambers of the internal combustion engine (1) is continued.

Abstract: A method for locating the longitudinal position of wheels (2, 3, 5, 6) of a vehicle (1) in which each wheel is fitted with a tangential measurement sensor (16) suitable for delivering measurement signals including a carrier of amplitudes and frequencies that are a function of the vibratory impacts sustained by the tangential measurement sensor. According to the invention, also, the amplitudes of the carrier of the signals in a frequency band corresponding to the frequencies of the explosions of the engine (M) are measured, the signals are compared so as to identify the signals of which the carriers have, for identical frequencies, maximum amplitudes, and the wheels (2, 3) that are the source of the signals of which the carriers have maximum amplitudes are located as corresponding to the wheels (2, 3) mounted on the driveshaft (4).

Abstract: A feed unit for feeding fuel has a housing formed integrally with the casing of a swirl pot, the housing comprising a fine filter. The fine filter is configured open toward one side and is closed by a cover. The cover is formed integrally with a base plate sealing the casing of the swirl pot. As a result, the feed unit has a particularly low number of components to be assembled and can be produced in a particularly cost-effective way.

Abstract: A method for activating functions of at least one tachograph having a control unit and an interface. The control unit is activated by a program to perform a first group of functions. First, a connection of an external storage medium to the interface of the at least one tachograph is established. The storage medium has at least one instruction for activating a function, which can be read out by the control unit. An authentication between the external storage medium and the control unit also takes place. The function associated with the at least one instruction is activated in such a way that the function is associated with the first group of the control unit. Next, the connection between the external storage medium and the interface of the at least one tachograph is released.

Abstract: An apparatus for measuring a hydrocarbon concentration of a gas stream in a line includes at least one sensor for measuring a hydrocarbon concentration, the position of said sensor being set off in relation to the line.

Abstract: A method, a sensor, a detector and a system are provided for locating at least one wheel on a vehicle. A signal is received from a first sensor mounted on the wheel, the signal providing a position of the wheel. Additionally, a measurement value is received from a second sensor that measures the angular position of a wheel and that is associated with a specific position of the vehicle. When the phase position of the first signal stays within a predefined tolerance range relative to the measured value within a specific observation period, the first sensor can be associated with the second sensor.

Abstract: A coupling device for hydraulically and mechanically coupling a fuel injector to a combustion engine fuel rail has a fuel injector cup with a central longitudinal axis. The fuel injector cup is hydraulically coupled to the rail and engages an injector fuel inlet portion. A first ring element coupled to the cup prevents movement relative to the cup in a central axis direction. The first ring element has a first screw thread. A second ring element is coupled to the injector preventing movement of the second ring element relative to the injector in a central axis direction. The second ring element has a second screw thread in engagement with the first screw thread retaining the fuel injector in the fuel injector cup in central axis direction. One of the ring elements is designed to be rotatable around the central longitudinal axis relative to the injector and/or the cup.

Abstract: A belt force measuring device with a measuring spring, the displacement thereof being a measurement for the belt force, and with a transmitter, being assigned to the measuring spring, and with a sensor element, being also assigned to the measuring spring, wherein the displacement of measuring spring, effects a change of position of the sensor element in relation to the transmitter. The change of position is detected by the sensor element as measurement for the belt force and the belt force measuring device further has a first connecting element, connecting the measuring spring with a belt lock or a first belt section and a second connecting element, connecting the measuring spring, with a motor vehicle body or with a component of the motor vehicle body or a second belt section. To provide a belt force measuring device, being produced simply and cost effectively, the measuring spring, the first connecting element and the second connecting element are designated as a single-piece component.

Abstract: A method for determining a maximum coefficient of friction ?max between a tire and an underlying surface entails empirically determining a reference curve ?ref(S) of a coefficient of friction ?ref as a function of a slip S between the tire and an underlying reference surface, determining a first momentary slip S1 for the tire and a first momentary coefficient of friction ?1 between the tire and the underlying surface at a first instant t1, determining a second momentary slip S2 for the tire and a second momentary coefficient of friction ?2 between the tire and the underlying surface at a second instant t2, computing a slope of the curve ?(S) of the coefficient of friction ? as a function of slip S, and computing the maximum coefficient of friction ?max between the tire and the underlying surface by transforming the reference curve ?ref(S) on the basis of the slope of the curve ?(S).

Abstract: A method and an apparatus for determining the mileage of a tire, include measuring a first current mileage over a limited period a first time, measuring a second current mileage over a limited period a second time, providing a measurement-free rest period between the first measurement and the second measurement, and estimating the mileage during the rest period on the basis of the first current mileage and/or the second current mileage. In addition, the method is repeated, with the already performed second measurement replacing the first measurement. Since a supply of power is not needed or at least can be significantly reduced during the rest period, the power requirement for mileage determination during the life of the tire can be significantly reduced, which allows simplified supply of power for mileage determination.