Abstract: Composite conductor comprising a metallic conductor and a ceramic conductor or non-conductor, at least one of them being elongate, the two being connected with each other in an electrically conductive manner. The ceramic conductor or non-conductor and the metallic conductor are hard-soldered to each other by a contact surface extending obliquely to the longitudinal direction of the at least one elongate conductor, and has one of the conductors tapers at its end and the other conductor has a matching tapering recess. The tapering end of the conductor is fitted into the tapering recess.

Abstract: The present invention relates to a flame glow plug having a combustion chamber which has an outlet opening for the flame, a fuel supply, in particular a blockable fuel supply, for the provision of a fuel flow to the combustion chamber, an air supply for the provision of an air flow to the combustion chamber and an ignition device, in particular an electrically operated heating element, which is arranged in the combustion chamber or which extends into the combustion chamber and which is made to ignite the air/fuel mixture arising from the provided fuel flow and the provided air flow. The air supply is made controllable in quantity to selectively operate the flame glow plug as a torch or as a secondary fuel injection apparatus. The invention furthermore relates to a regeneration apparatus for a particulate filter of an exhaust gas system, to an exhaust gas system for a combustion engine as well as to a method for the operation of a regeneration apparatus.

Abstract: Device for creating a temperature gradient, especially in gaseous media, comprising at least one ohmic resistor and at least two non-conducting insulators and at least one casing and at least one elastic element positioned between the non-conducting insulator and the casing.

Abstract: The invention relates to a method for operating an electric add-heater in a motor vehicle having at least one rechargeable electrochemical cell as a power source and an electric generator which is connected with the cell and is driven by a drive engine of the motor vehicle and by which an electric add-heater can be supplied with current when the drive engine is running. It is provided according to the invention that in case of need the add-heater can be supplied with current even when no current is supplied by the generator, by switching over the add-heater to at least one electrochemical cell as a power source, monitoring the charging condition of at least one electrochemical cell, and interrupting the power supply of the electric add-heater realized by the at least one monitored electrochemical cell again when the charging condition of the at least one monitored electrochemical cell has dropped below a lower limit value.

Abstract: A device for glow plug excitation control is disclosed, in particular for a glow system (2) for controlling at least one glow plug pencil (3), in particular for the rapid heating with an engine control device (1), comprising at least an engine control (1), a glow system (2), a glow plug (3), a supply resistance terminal 30 (4), a supply resistance glow plug (5), an internal resistance glow control (6), a measured voltage at the engine control U1 (7), a voltage drop on the lead to glow control device U2 (8), a voltage drop in the glow control device U3 (9), a voltage drop at the lead to glow plug U4 (10), a voltage at the glow plug U5 (11).

Abstract: Described is a procedure for controlling the transmission operation of a tire pressure monitoring device (1) arranged in a pneumatic tire of a vehicle, whereby data telegrams are transmitted in a normal mode of operation (13) in first time intervals, and there is a changeover from the normal mode of operation (13) to a pressure drop mode, if an inspection of the pressure signals indicates a drop in the pressure of a drop speed exceeding a pre-defined threshold value, and data telegrams are transmitted in the pressure drop mode in second time intervals, which are shorter than the first time intervals, and the tire pressure monitoring devices (1) are put into a travel starting mode (10, 11, 12) at the beginning of the travel by activation a roll sensor. Data telegrams are transmitted in the travel starting mode in shorter third time intervals as compared to the normal mode of operation.

Abstract: Herein is described a method for the heating-up of a ceramic glow plug by applying a variable electric voltage to the glow plug. In accordance with the invention it is provided that, starting from a base value, the electric voltage increases in a time-averaged manner superproportional to the elapsed heating-up time. The invention relates also to a glow plug control unit for carrying out of such a method.

Abstract: A method for the assigning of identification codes that are sent in radio signals by tire pressure monitoring devices at the wheels of a vehicle and that are received by a receiver provided in or at the vehicle, which signals are relayed to an evaluation unit connected to the receiver, in which unit is stored a specific identification code for every wheel position of the vehicle and wherein the stored identification codes are compared with identification codes in subsequently sent radio signals, whereby for the storage of the identification code of the tire pressure monitoring device of a chosen wheel the specific wheel position intended for the chosen wheel is entered at a control unit, whis is in communication connection with the evaluation unit, subsequently the tire pressure monitoring device of the chosen wheel is caused to send a radio signal containing its identification code, this radio signal is received and the therein contained identification code is stored in the evaluation unit or in the control

Abstract: The invention relates to an internal combustion engine for vehicles on which a device is mounted and has a semiconductor-based read-only memory, which contains data which are destined to be used for a given purpose of the device, and has an interface enabling an access to the read-only memory. In addition to the data which are destined to be used for the given purpose of the device there are engine-specific data stored in non-volatile manner in the device, the engine-specific data being neither necessary nor destined for the given purpose of the device, and that the engine-specific data, too, can be read out electronically via the said interface.

Abstract: Allocating first transmitters of a tire monitoring system, especially of a tire-pressure monitoring system having a wheel unit comprising a sensor, a first transmitter, which can be triggered, and a sending antenna on each of N wheels arranged on L axles of a vehicle according to a predetermined axle formula, further having receiving antenna on the vehicle body associated to the first transmitters and an electronic receiver and evaluation system, connected to receiving antenna by allocating an identifier characteristic of a particular wheel to its respective first transmitter, by emitting data telegrams, which contain the identifier, in response to a triggering action of second transmitters, and passing on such data telegrams to the central electronic receiver and evaluation system. The number n of the trigger transmitters is smaller than the number A of the axle positions, that each axle position is associated to a triggering range of n trigger transmitters.

Abstract: The invention describes a method for operating glow plugs in a diesel engine that comprises a housing and a heater element projecting beyond that housing which interacts with an engine control unit and a glow plug control unit which, following a preheating phase, controls the electric power supplied to the glow plugs in dependence on an input received from the engine control unit. According to the invention it is provided that the engine control unit determines a value representative of a temperature that is to be reached at the heater element and the engine control unit transmits that value as target value to the glow plug control unit which converts that target value using an algorithm stored in the glow plug control unit and taking into account the characteristic values stored in the glow plug control unit.

Abstract: The present invention relates to a flame glow plug having a combustion chamber which has an outlet opening for the flame, a fuel supply, in particular a blockable fuel supply, for the provision of a fuel flow to the combustion chamber, an air supply for the provision of an air flow to the combustion chamber and an ignition device, in particular an electrically operated heating element, which is arranged in the combustion chamber or which extends into the combustion chamber and which is made to ignite the air/fuel mixture arising from the provided fuel flow and the provided air flow. The air supply is made controllable in quantity to selectively operate the flame glow plug as a torch or as a secondary fuel injection apparatus. The invention furthermore relates to a regeneration apparatus for a particulate filter of an exhaust gas system, to an exhaust gas system for a combustion engine as well as to a method for the operation of a regeneration apparatus.

Abstract: The invention describes a method for operating a device for monitoring and wireless signalling a pressure or a pressure change in pneumatic tires of wheels on vehicles, the device being hereinafter referred to as wheel electronics, wherein the pressure prevailing in the pneumatic tire is measured and electric pressure signals are derived from such measurements, and an information signal containing information on the pressure or on a pressure change is transmitted, the information signal being intended to be received by a receiver provided in or on the vehicle, the wheel electronics being set by a first control signal, which is transmitted in wireless fashion from outside the wheel electronics, to a first mode of operation in which the prevailing pressure or a pressure change is measured and signalled in response to the receipt of an interrogation signal generated outside the wheel electronics and transmitted to the wheel electronics in wireless fashion, and, if the wheel electronics do not receive another int

Abstract: An arrangement having a device for measuring the tire pressure in a pneumatic tire, wich device is enclosed in a casing which is located inside the pneumatic tire when the pneumatic tire has been mounted on a wheel and also having spring acting resiliently upon the casing and a holder for the spring, which is to be fixed to the wheel. According to the invention, the spring and the casing are so designed and adapted one to the other that the casing finds support on the holder and is clamped for this purpose between the spring and the holder.

Abstract: There is described an arrangement on vehicles equipped with wheels (1) with pneumatic tires, having an evaluation and control unit (8) arranged in the vehicle (2) and one or more receiving antennas (4), that are assigned to individual wheels (1) or groups of wheels (1) of the vehicle (2) and are connected to the evaluation and control unit (8) via an RF receiver (5) comprising a demodulator (6), for use in a tire-pressure monitoring system in which a unit (3), that is mounted on the respective wheel (1) and that comprises a pressure sensor for measuring the pressure in the pneumatic tire and for generating an electric pressure-measurement signal, comprises a control circuit and a transmitter with a sending antenna for sending out, under the control of the control circuit, the pressure-measuring signal or a signal derived therefrom in the form of a radio-frequency signal.

Abstract: A method for allocating identifiers, that are contained in signals issued by transmitters arranged in a tire pressure monitoring system, to the positions of the wheels by transmitting the signals to a receiving and analysis circuit, which analyses the information, contained in the signal, wherein for differentiating between wheels on the right side of the vehicle and wheels on the left side of the vehicle, the sign of a translation acceleration b is determined for each running wheel, the sign of the variation of the centrifugal acceleration z occurring during the translation acceleration b is additionally determined and multiplied by the sign of the translation acceleration b determined for the respective wheel, and the differentiation between wheels on the right side of the vehicle and wheels on the left side of the vehicle is effected by comparing the products of the two signs determined for the wheels.

Abstract: The invention relates to a method for assigning identifiers, contained in signals emitted by transmitters in a tire pressure control system, to the position of the wheels where the transmitters are located. Said system comprises a pressure sensor, a transmitter and a transmit antenna on each of a plurality of wheels of a vehicle, one or more receive antennas on the vehicle body, and receiving and evaluating units connected to this body via cables. In this method, the signals containing the identifier are intercepted by the receive antenna(s) and transmitted to the receiving and evaluating units, where they are evaluated in accordance with their identifiers. The invention is characterized in that, for the monitored wheels, not just the air pressure in the tires, but also the acceleration obtained from the movement of the wheel is measured.

Abstract: A method for operating a device for monitoring and indicating a pressure change in vehicle tires by wire, being preferably arranged in the tire as one module together with the tire valve, and comprising a current source, a pressure sensor arranged for measuring the tire pressure at first time intervals, an analog/digital converter for digitizing a pressure signal obtained from the pressure sensor, a memory for storing the pressure signal, a transmitter for transmitting the measured tire pressure information to a receiving unit located in the vehicle, a comparator, especially one realized in one module with a microprocessor, which compares the pressure signal with a previously stored comparison pressure signal and controls the transmitter in such a way that the transmitter will transmit signals at second time intervals greater than the first time intervals, so long as the decrease of the pressure signal, relative to the comparison pressure signal (drift), does not exceed a threshold value, but will transmit si

Abstract: A vehicle tire pressure monitoring system includes a pressure sensor, a transmitter, and a transmitting antenna at each of N wheels of the vehicle, and at least one receiving antenna attached to the vehicle, respectively allocated to each transmitting, antenna. The receiving, antenna is connected to an electronic receiving, and analysis system which determines whether a signal belongs to the local vehicle by allocating an identifier characterizing the individual wheel to its transmitter. Emitted signals contain the identifier and are forwarded to the central electronic receiving and analysis system, which records the signal intensities under the signal's identifier, compares the intensities, selects those N transmitter identifiers with the greatest intensities, then stores the N transmitter identifiers as belonging to the vehicle.