Siemens Aktiengesellschaft

Anton Sebastian Huber

Dieter Neugebauer

Rainer Falk

Steffen Fries

Marten Swart

Jeno Tihanyi

Kai Fischer

Hans Aschauer

Markus Heintel

Wolfgang Klasen

Johannes Zwanzger

Georg Trummer

Axel Pfau

Joachim Koppers

Franz Sperl

Bernhard Quendt

A modular security control device for controlling an apparatus or an installation includes a basic control apparatus which is configured such that an apparatus or an installation which is at least connectable to the basic control apparatus is at least controllable via a sequence of a control program in the basic control apparatus, and includes a security module which is configured to provide or perform a cryptographic functionality for the basic control apparatus, where the security module is connected to the basic control apparatus by a data connection via a data interface, the basic control apparatus is configured to interact with the security module to achieve a security function of the security control device, and where the basic control apparatus is configured to query an identity and/or authenticity of the security module.

Modular security control device

A circuit configuration for a passenger protection device, such as an airbag, includes at least first and second collision sensors having triggering thresholds individually assigned thereto, for triggering a passenger protection device if the collision sensors exceed the triggering thresholds. The first sensor supplies an output signal exceeding the triggering threshold assigned to it before the second sensor issues an output signal exceeding the triggering threshold assigned to it, in the event of a collision. One of the sensors is a clock-generating sensor setting a beginning of a time period when its output signal exceeds a threshold value assigned to it, during the collision. One of the sensors mechanically actuates a switch and supplies an essentially binary output signal, in the event of a collision. Both of the sensors are required to exceed their triggering thresholds no later than a point in time within the time period, for the protection system to be finally triggered. The other of the sensors is an electronic sensor, such as a piezoresistive or a piezoelectric sensor, supplying an analog output signal, in the event of a collision. A programmable read-only memory PROM records a collision occurrence and stores data regarding a behavior of the output signals of at least one of the sensors occurring during the time period, at least if both of the sensors had exceeded their triggering thresholds during the point in time.

Circuit configuration for the passenger protection device of a vehicle

Firing control device for triggering a passenger restraint system of a

In an electrical function group, a useful circuit having electrical module units is electrically connected via a plug-type connector. The plug-type connector is equipped with a longer and with a shorter contact pin, so that the shorter contact pin separates first when the plug-type connector comes apart. The longer contact pin is a useful contact that closes the useful circuit and the shorter contact pin is a signal contact that closes a signal circuit. The signal circuit contains a monitoring arrangement that generates an alarm when the signal circuit is parted by the signal contact. As a result thereof, an incipient parting event of the plug-type connector is recognized before the useful circuit is separated.

Electrical function group for a vehicle

An arrangement for the protection of a transistor, particularly a MOS-switching transistor including a zener diode connected between the gate and source terminals for limiting the gate potential and a switch-off transistor connected to the control circuit of the MOS-transistor for grounding the gate thereof and switching it off. First and second monitoring circuits are coupled between the MOS-transistor and the switch-off transistor for producing a signal switching on the switch-off transistor in response to a drop in the load current and an increase in the output voltage of the MOS-transistor. First and second timing circuits block the signals of the monitoring circuits for predetermined intervals.

For the protection of an MOS-transistor from overloading

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Nuremberg, Germany

Anton Sebastian Huber