| 摘要 |
<p>PURPOSE: An electrical control system is provided to eliminate the need for increase the amount of terminals of a connector for diagnosis, to reduce cost by standardization of a connector and to treat at low cost without change of options of hardware of a tester for disorder diagnosis. CONSTITUTION: An electrical control system is composed of many electric control units embedding memory devices(8,9) able to change writings and writing change control devices(9,11) controlling the writing change of the contents of the memory devices and a connector(7) connected to each electric control unit and having a separable writing change command device(6). Herein, the writing change devices of each electric control unit is operated by the writing change command transmitted from the writing change command device connected to the connector, and changes the writing of the memory contents of the memory devices when an identification code(10) transmitted from a writing change command device and an identification code memorized in the memory devices are accorded. Herein, the allocation of the terminals of a connector to each electric control unit becomes unnecessary by identifying the electric control units demanding writing change of the memory contents by the comparison of the identification codes. Thereby, the producing cost is reduced by standardizing the connector.</p> |
