Abstract: To avoid a motor vehicle passenger from bending too closely towards an airbag unit disposed in front of the motor vehicle passenger during a braking maneuver before a collision, a clamping device arrests a seat belt as a function of a brake pressure.

Abstract: An electronic device includes a resonant circuit and an evaluation circuit. The resonant circuit includes an acceleration-sensitive sensor which is excited to vibrate during a testing phase of the acceleration-sensitive sensor. The evaluation circuit is coupled to the resonant circuit to determine a performance reliability of the acceleration-sensitive sensor.

Abstract: The invention proposes a process for error recovery in electronic control devices as well as apparatus for controlling the steering angle of the rear wheels of a motor vehicle. The control device controls an actuating member to which is connected a safety device. In the main operation of the control device, transmitter signals are detected, actuating values are calculated and the actuating member is controlled corresponding to the calculated values. The calculated actuating values and the detected transmitter signals are checked for consistency. On the basis of the checked values, a decision is made as to whether to continue running the main program or resort to one of two emergency measures. In the first emergency measure, the safety device is activated and the control of the actuating member is switched off. In the second emergency measure, the signals of transmitters continue to be detected and actuating values are calculated from these signals.