Robert Boschgmbh

Frank Schou

Marlon Ramon Ewert

Guenter Weiss

Rainer Gschwind-Schilling

Klaus Ringger

Michel Walz

Mustafa Ajanovic

Joerg Conradt

Darko Rozic

Kevin Haist

Michael Haug

Daniela Bommer

A method monitors a sensor clock signal in a sensor unit, which is generated and output for a data transfer between the sensor unit and a control unit with a predefined period duration. A reference clock signal having a predefined reference period duration is received. The sensor clock signal is compared to the reference clock signal. Based on the comparison, a deviation of the current period duration of the sensor clock signal from a target period duration is detected. Based on the detected deviation, a counting pulse or a reset pulse is emitted.

Device and method for monitoring a sensor clock signal

A method corrects at least one transmission parameter for data transmission between a sensor unit and a control unit. A sensor timing signal is generated by a sensor oscillator with a predetermined period. The at least one transmission parameter is determined on the basis of the sensor timing signal. A reference timing signal is generated by a reference oscillator with a predefined reference period. The sensor timing signal is compared with the reference timing signal. A deviation of a current period of the sensor timing signal from a reference period is determined on the basis of the comparison. The at least one transmission parameter is corrected on the basis of the determined deviation.

Device and method for correcting at least one transmission parameter

A protective device for a vehicle is described which is deactivatable by a switch, the state of the switch being analyzable by a processor in a control unit and by an independent hardware path. The independent hardware path has at least one logic module which makes the setting of delay times highly flexible.

Protective device for a vehicle

A circuit arrangement, to which the vehicle electric system supply voltage is applied and which for briefly maintaining at least one internal normal d.c. voltage in the event of failure of the vehicle electric system supply voltage, includes a reserve energy accumulator, to which a charging voltage higher than the at least one internal normal d.c. voltage is applied in regular operation, and which, in the event of failure of the vehicle electric system supply voltage, delivers a reserve voltage with which operation of at least some electronic circuits may be maintained for a limited period of time, and it includes at least one step-down regulator which steps down the applied input direct voltage to the at least one internal normal d.c. voltage.

Circuit arrangement for momentarily maintaining an internal operating direct current voltage in the event of an interruption in the vehicle electrical system power supply voltage

A switch for switching off at least one airbag having two identical sensors for detecting a switching state of the switch is provided, the two identical sensors being connected up in such a way that the electrical characteristic-quantity ranges to be evaluated for detecting the switching state differ from each other. This is achieved with the aid of different resistor networks between the two sensors and a signal evaluation unit.

Switch for switching off at least one airbag

A control unit for a restraint system fires all connected pyrotechnic firing elements. The control unit receives for that purpose, via an interface, a software element that configures all the firing circuits and the triggering algorithm for firing all the firing circuits, and that emulates for a safety module sensor values such that the safety module enables all the firing circuits.

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Ditzingen, Germany

Frank Schou