Robert Boschgmbh

Christian Reichert

Julian Bartholomeyczik

Frank Schindler

Richard Holberg

Qiulu Dai

An intrusion sensor for monitoring an entrance to a building to be monitored, the intrusion sensor being situated at the entrance on the inside of the building, includes an acceleration sensor which is configured to detect motions of the intrusion sensor in at least one spatial axis, and in the case of a motion in the at least one axis, to output an acceleration signal, including a surroundings sensor which is configured to detect at least one value of at least one physical variable in the surroundings of the intrusion sensor, and including a plausibility check device, which is configured to carry out a plausibility check of the acceleration signal using the detected value of the physical variable, and to output an intrusion signal if the result of the plausibility check is negative. Also described is a corresponding method and an alarm system including an intrusion sensor.

Intrusion sensor for monitoring an entrance to a building to be monitored, and method

A method/device for evaluating oxygen sensor signals of an air supply channel connected to an exhaust gas channel of the internal combustion engine, via an exhaust gas recirculation having at least one exhaust gas recirculation valve; the oxygen sensor being downstream from the exhaust gas recirculation initiation; the sensor signal(s) being corrected as a function of at least one characteristics variable describing the dependence of the sensor signal on the oxygen concentration or a correlated variable, and/or additional physical variables. At at least one engine operating point(s), in response to a closed exhaust gas recirculation valve, output oxygen sensor signals and additional operating point parameters are recorded/stored; and an adaptation of the characteristic variables is derived assuming that the gas composition corresponds to pure air. Also, a characteristics curve adjustment and a compensation of pressure temperature dependencies may be performed to improve the accuracy of the oxygen sensor signals.

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Nuertingen, Germany

Christian Reichert