Detection of breakdowns and isolation of a high-speed downstream CAN network

摘要

The device has a microcontroller (4) containing a module to generate repetitive transmissions of frames on a high-speed downstream controller area network (CAN)and to collect receipt of the frames by equipments of the network. The module has a counter counting non-receptions of the frames, and increases the counter with a predefined quantity at each non response during a given filtering time. The module compares a value of the counter with a threshold value after an interrogation carried out by the transmission of a frame for deciding isolation or non-isolation of the network. An independent claim is also included for a method for detecting breakdown on a high-speed downstream controller area networkfor isolating the network from a high-speed upstream controller area network.