Abstract: An integrated circuit configuration, in particular for igniting a restraint device of a motor vehicle, has a capacitor and an ignition element. In this case, a porous region of a semiconductor layer forms a capacitor electrode, which is isolated from a further semiconductor layer by a dielectric layer. The further semiconductor layer being configured as a further capacitor electrode. The further semiconductor layer has a region that is tapered in its cross-section and serves as an ignition element electrically connected to the capacitor.

Abstract: An antenna configuration in an apparatus for detecting a child safety seat placed on a seat in a motor vehicle. A single transmitting antenna formed as a loop surrounds two loop-shaped receiving antennas. The receiving antennas receive electromagnetic measurement fields originating from an electromagnetic exciter field transmitted by the transmitting antenna.

Abstract: An integrated circuit configuration has both an ignition resistor and a control circuit that controls a current flow through the ignition resistor. A region of a semiconductor layer that electrically connects the integrated components is used as the ignition resistor. An electrically conductive layer for making electrical contact with the control circuit and a semiconductor layer for the components has a cutout in the region of the ignition resistor and ignition material is in direct contact with the integrated circuit configuration at the ignition region.

Abstract: A vehicle weight classification system recognizes the various factors that influence system performance. Some of the factors are compensated for using analog signal processing circuitry or techniques. Other factors are compensated for using digital signal processing techniques. The unique combination of analog and digital approaches, rather than pure analog or pure digital, provides an effective solution at addressing the various factors that influence signals and system performance in a vehicle weight classification system while keeping the cost and complexity of the system within acceptable limits.

Abstract: A reset circuit for deactivating a circuit configuration, which is fed by a supply voltage, in the case of an undervoltage supply. In this case, active components 1,2 (FIG. 1); or 3,2 (FIG. 3) are provided and their forward paths are connected in series between the supply voltage Uv and ground reference potential. The active components are fed directly or indirectly by a current mirror circuit 9 from a respective current source 10, 11. A reset signal Ureset (active=low signal) being present at the junction point 5 of the active components, where the junction point 5 is connected to ground reference potential via a resistor Rdown.

Abstract: A device and a method for detecting a weight of an object and/or an occupant on a vehicle seat are described. In which a control and evaluation circuit derives a weight signal from a current consumed by an electric motor during a controlled adjustment of the vehicle seat.

Abstract: A passenger protection device of an automobile is triggered when a testable acceleration switch supplies a switch signal and an electrically controlled switching device is actuated by a control circuit depending on a collision. Actuation of the switching device is prevented on a triggering circuit side by a blocking device so that the passenger protection device is not triggered as a result of faulty control switching during testing of the acceleration switch.

Abstract: The inductor-type converter has an inductor that is fed by a supply voltage source Vbat. The inductor is charged via electronic switching elements and discharged via a load impedance. The inductor is connected in the bridge path in an H-bridge topology formed from five electronic switching elements. The electronic switching elements are driven periodically or cyclically by an electronic control unit. The voltages at the two capacitive elements are different from the supply voltage Vbat.

Abstract: In a method for tripping a restraint device in a vehicle, coded information signals with status and diagnosis messages are transmitted in both directions between an evaluation device and an ignition device. To avoid the situation where a tripping signal for the restraint device may be delayed in its transmission to the ignition device because the data throughput in the transmission medium is high, the transmission of the information signals is interrupted. Accordingly, the transmission of the information signals in the forward and return directions is controlled by the evaluation device. As a function of a collision signal furnished by a sensor device, the transmission of the information signals is ended by the evaluation device, so that the transmission medium between the evaluation device and the ignition device remains free for a possibly ensuing tripping signal.

Abstract: The system for triggering a restraining device in a motor vehicle includes an ignition device with a logic circuit connected to an evaluation device a via a line. A d.c. signal for operating the ignition device is input into the line. An alternating signal containing a message is additively superimposed on the d.c. signal and is transmitted from the evaluation device to the ignition device.

Abstract: An impact sensor configuration in a motor vehicle includes a sensor device in each vehicle half (relative to the longitudinal axis of the vehicle) for detecting an acceleration. Each sensor device has two acceleration sensors with differently directed sensitivity axes.

Abstract: A configuration for triggering a personal protection system supplies a trigger signal for triggering the personal protection system which is dependent on an acceleration-dependent release signal and a response of a switch that operates acceleration-dependently, in a protection device or safing sensor. A simple and testable structure for such a protection device includes two switching units which can be alternately connected through and locked for testing purposes.

Abstract: A pressure transducer, in particular for sensing a lateral collision in a motor vehicle, delivers an electric useful signal which is determined by a relative pressure change relating to a pressure event. Low-frequency changes in an output signal of a sensor device, which depend on the ambient pressure, are compensated by a control device with an integrating behavior. The sensitivity of the sensor device, as a manipulated variable, changes in a manner inversely proportional to the ambient pressure. Higher-frequency pressure changes in the output signal of the sensor device are not compensated, but as a result of the variable sensitivity of the sensor device, determine as relative pressure changes the useful signal, which is additionally independent of temperature influences and offset errors of the pressure transducer.

Abstract: A device with an electric circuit configuration includes electrical components and a pressed grid stamped from a metal strip for electrically conductively connecting the electrical components to one another. The pressed grid has bent-over large-area peripheral regions and a plug part with connection pins stamped out of the metal strip.

Abstract: A control arrangement for a deployable airbag of a vehicle is provided with first and second airbag controllers for receiving a fault signal at the first airbag controller, and for producing at the second airbag controller a deployment command signal that indicates that the deployable airbag is to be deployed. The second airbag controller receives the deployment command signal, and is provided with a communication controller for receiving the deployment command signal, a squib for firing in response to the deployment command signal whereby the deployable airbag is deployed, and an energy transfer arrangement coupled to the communication controller and the squib for transferring a deployment energy to the squib in response to the deployment command signal. The squib is configured to require a predeterminable minimum quantum of energy to effect the firing thereof in response to the deployment command signal.

Abstract: A circuit for testing the leakage resistance of a circuit point. Particularly in the case of circuits where safety is important, a circuit point, particularly an output terminal of an integrated circuit, should be tested for a leakage resistance relative to ground and/or a voltage to provide an early detection of an imminent failure condition. To this end, at least one test current is fed into the circuit point and the voltage at the circuit point is monitored by means of a comparator. When the leakage resistance decreases below a permissible value the voltage at the circuit point decreases, which can be detected by the comparator. For monitoring a leakage resistance relative to both poles two opposite test currents are applied and the comparator is constructed as a window comparator.

Abstract: A triggering circuit for a crash sensor-controlled protective system for the occupant of a vehicle includes a firing capacitor being charged to a capacitor voltage by the electrical system of the vehicle before an accident, as an energy source for firing a gas generator, that is for firing an explosive charge or for firing a firing cap of an explosive charge. At least one crash sensor detects the occurrence of the sensor values that trigger the firing and controls the firing of the gas generator by one or more contacts by discharging the firing capacitor.

Abstract: An apparatus for the wireless transmission of energy and data includes a transformer with two sides for transmitting energy in one direction and data in both directions. A circuit on both of the sides of the transformer controls and evaluates a course of the transmission. In a method for controlling and evaluating the apparatus, a primary-side switching path is interrupted for transmitting energy from the primary side to the secondary side. Data are transmitted from the primary side to the secondary side during an energy storage phase by briefly interrupting a primary-side switching path. Data are transmitted from the secondary side to the primary side in a period during an energy storage phase by a secondary-side load pulse. An information transmission is controlled with a trigger and evaluation device on the primary side and on the secondary side.

Abstract: Circuit arrangement for triggering a vehicle passenger protection system, having a plurality of triggers (ZP1, ZP2, ZP3), through which (ZP1, ZP2, ZP3) in the event of a sufficiently serious accident a current impulse is conducted in each case, which for its part is intended to trigger the protection, one or more triggering switches (SS in FIGS. 1 and 2), the switching path of which (SS) in each case is non-conductive before the accident, and in the event of a sufficiently serious accident makes the transition to its conductive state and thus causes the current impulse through the triggers (ZP1, ZP2, ZP3), a plurality of current branches (ZP1/C2, ZP2/C5, ZP3/C9), which in each case contain at least one of the triggers, for example a primer capsule (ZP1, ZP2, ZP3), and a capacitor (C2, C5, C9), and a parallel circuit which is formed by the parallel circuit of the current branches (ZP1/C2, ZP2/C5, ZP3/C9).

Abstract: A firing control device (G) for triggering a passenger restraint system of a vehicle by electrically firing one or more firing pellets (Z1, Z2), having a processor (P) which, during operation, criteria for the necessity of triggering derives from the output signals of one or more crash sensors (S1, S2), having at least one measuring unit (R/DR, DZ1, DZ2) which, during a crash, measures at least the firing current (I1, I2) flowing through the respective firing pellets (Z1, Z2) and/or values (for example voltages) which depend on said firing current (I1, I2), having a PROM memory (M), and having a measuring unit (R/DR) which (R/DR) contains a measuring resistor (R) which is inserted into the firing circuit (I1, I2) of the firing pellet (Z1, Z2) so as not to be usually directly accessible from the outside via external terminals (A0 to A5) of the housing (G) of the firing control device in order to determine data relating to the variation of the firing current (I1, I2) flowing across the resistor (R) during trigg