| 摘要 |
<P>PROBLEM TO BE SOLVED: To impart a node ID to each vehicular component by an electronic control unit (ECU). <P>SOLUTION: This system 1 is constituted to connect the ECU 20 to an injector (INJ) 10 of each cylinder via a common communication line LC, and to input a signal from a pressure sensor 11 of each INJ 10 into the ECU 20 via a sensor line LS of every INJ 10. In the system 1, operations (1), (2) as follows are repeated to impart a communication ID to each INJ 10. (1) The INJ 10 not imparted yet with the ID selects one voltage out of plurality of ones at random, to be output to the sensor line LS, when a specified command is output from the ECU to the communication line LC. (2) The ECU outputs a determined command including the ID imparted to the INJ, and information indicating the voltage output from the INJ, to the communication line LC, when one having a unique voltage of the sensor line LS exists out of the INJ 10 not imparted yet with the ID, and each INJ stores the ID in the determined command as own ID, when the information in the determined command is same to own output voltage. <P>COPYRIGHT: (C)2012,JPO&INPIT |
