Patent ID: 8554406
Filing Date: 2013-10-08
Classification: H04L,Y02D

Abstract:
1. A method of communication between two automotive electronic control units ( 1 , 2 ), comprising i) two communication interfaces ( 3 , 4 ) between the electronic control units ( 1 , 2 ) enabling messages to be sent via one or the other of the communication interfaces ( 3 , 4 ), ii) a microcontroller ( 5 ) linked to the communication interfaces ( 3 , 4 ) managing the sending and receiving of the messages via these communication interfaces ( 3 , 4 ) according to a given priority level, transmission speed and recurrence, iii) a diagnostic system ( 8 ) for checking the functionality of the communication interfaces ( 3 , 4 ), iv) a message scheduler ( 6 ), and v) a logic switch ( 7 ) connected to the microcontroller ( 5 ), controlled by the message scheduler ( 6 ), and connected to the communication interfaces ( 3 , 4 ), enabling one or the other of the communication interfaces ( 3 , 4 ) to be selected, said method comprising: a first step ( a second step ( when in the first step the diagnostic system ( when in the first step the diagnostic system ( a third step ( i) when the message scheduler ( ii) when the message scheduler ( iii) when the message scheduler ( a fourth step of sending each of messages over a currently selected of the two communication interfaces (