| 摘要 |
PROBLEM TO BE SOLVED: To detect the break of continuous voltage feed, and, furthermore, system fault during an after-running phase while an ignition switch is closed and after the ignition switch is opened when the voltage feed of an automobile- controlling device is to be monitored. SOLUTION: A controlling and monitoring device 22 receives an ignition lock signal KL15 from a voltage controller 20. Furthermore, the controlling and monitoring device 22 allows the controlled automatic break of a controlling device to be generated by a control line signal NL to the voltage controller 20. The voltage controller 20 triggers a reset circuit 24 after a voltage shortage is generated, or after a safety device 26 detects the functional fault of the controlling and monitoring device 22. The controlling and monitoring device 22 scans the ignition lock signal KL15, an after-running phase signal SW-NL, and/or the control line signal NL for deciding on the occurrence of the fault. |
