Importance

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Abstract

The present invention relates to intelligent fuse box (1) for a vehicle's multiplex power distribution system, the fuse box including outputs (3) for driving the vehicle's functional components/actuators and/or cable buses (11 13) equipped with intelligent_nodes (14), the latter in turn having outputs for driving functional components/actuators (15), and further including means serving fuse functions between the outputs (3; 11 13) and the vehicle's power supply bus (12). The fuse-function means are controlled solid-state switches (4). The fuse box (1) includes inputs (5) for receiving messages controlling the ON/OFF state of solid-state switches (4) and a microprocessor (6), the latter controlling the solid-state switches (4) based on a program stored in the microprocessor memory (7) and on current limits predetermined in configuration data (8). In addition to the actual fuse functions, the controlled operation of the solid-state switches offer a plurality of auxiliary functions such as rush current limiting, programmable reconfiguration of current limits, dynamic fuse functions (e.g., to implement a low-current Asleep mode in a parked vehicle) and measurement of system overall load current.

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First Claim