1、1、Delphi: The ECU Network Management monitors Tx and Rx error counters of the CAN controller. When the CAN controllerhas reached the bus-off state this function will inhibit transmission from the ECU. After 5 seconds the CAN controllerwill be re-initialized. If the probl
2、em causing the bus-off state persists then this 5 second cyclic behaviour willcontinue so that the erroneous ECU would not affect the rest of the network. 2、Ford:When a node enters bus off state the controller shall be reset at the expiration of 40ms. If this fails, anot
3、her attempt will be made another 40ms later. As long as retry failures persist, the controller will be reset every 40ms until a total of 10 attempts has been made. Following the 10 attempts, the controller shall be reset every 1s thereafter until the bus-off condition i
4、s removed or the node experiences a power cycle. 3、Vector:Figure 71:SequenceafteraBusOffandasuccessfulrecoveryTherecoverytimingisgivenin Table 72.ParameterSymbolMinNominalMaxUnitCommentBusoffrecoverytimetBusOffRecovery170200230msTimeforbusoffrecovery.Table 72: Busoff t
5、iming4、MBtech: 5、泛亚(同GM): No.接受标准测试结果是否通过1第一次进入Busoff后,DUT立即重启CAN控制器并恢复发送报文,无需等待Busoff恢复延迟时间。这种情况下的恢复发送的延迟时间仅仅是CAN协议的恢复延迟(CAN收发器清空内部错误计数器的时间,DUT正确接收128帧报文后可清空错误计数器。具体为128x11个连续的隐性位的时间,高速CAN上这个时间约为3-5ms)Tdelay = ms 2后面再出现Busoff的情况,恢复延迟时间为160ms±10%;Tdelay = ms 3Busoff恢复延迟时间
6、结束后,DUT恢复正常收发报文。 4测试时,恢复延迟时间最大为160ms±10%Tdelaymax= ms