| 摘要 |
PURPOSE:To make a record of monitoring for the entire period of time from the occurance of a failure to a related repair by fusing a base fuse through the input of a failure signal whereby fusing detecting fuses in order as the number of inputted ignition switches is increased. CONSTITUTION:After a failure signal is generated, when it is inputted into a flip-flop 1, a transistor Tr1 is energized by the input from an input terminal Q for fusing a base fuse Fo by current flowing between emitters. Then when an ignition switch TGS is inputted, direct current is outputted to an AND1 through a flip-flop circuit 4 for being outputted to a flip-flop 2 based on the product of the input from an amplifier AMP1 so as to drive the flip-flop. And an input number fuse F1 from the output terminal Q is burnt out. Similarly, whenever the ignition switch IGS is inputted, each of input number detecting fuses F2...Fn is burnt out in order. Accordingly, knowing the number of fusing later on can determine the time from the occurrence of a failure to a related repair. |
