collective verkabelungssystem and procedures to control the system

摘要

A collective wiring system for an automobile provides a central control unit (CCU) which communicates with a plurality of terminal control units (LCU) each connected to one or more input or output devices (93, 94, 95, 96), such as switches, sensors, motors and the like. The control over output devices in response to the status of input devices is performed by the central control unit (CCU) on the basis of tables of data stored in memory (102, 103). A scan table (SCNTBL) controls the order in which data communications are made to the terminal control units (LCU) to obtain their status and provide them with control commands. A monitor table (STATTBL) stores the current status of the terminal control units (LCU) and a control table (CNTLTB) stores the control data for the terminal control units (LCU). A connection table (CCTBL) stores the relationship between the terminal control unit (LCU) for an input device and the terminal control unit (LCU) for the output device to be controlled thereby. Thus, connection control between input and output devices is effected by software.