Architectures and methods for managing in-vehicle networked controllers and devices

摘要

Disclosed are control algorithms and system architectures for managing the operation of networked controllers and devices, including vehicles having an on-board electronic control unit (ECU) and control logic for regulating the suspension and activation of these ECUs. A method for managing the in-vehicle network of ECUs in a motor vehicle includes: determining status vectors for a group of ECUs, each status vector indicating whether the corresponding ECU is active or not active; determining the device roles for these ECUs - slave or master; determining an assigned hierarchy for selecting the ECUs as the master device; receiving a mode change signal indicating that an ECU intends to enter the sleep state or the enabled state; and in response, modifying the respective device role for an ECU from the master to the slave and the respective device role for another ECU from the slave to the master based on the assigned hierarchy and the status vectors for the ECUs.