公开(公告)号：US11072355B2

公开(公告)日：2021-07-27

申请号：US16192506

申请日：2018-11-15

申请人： Transportation IP Holdings, LLP

发明人： Michael Mangus ,  James Robert Mischler ,  Samuel Lyle Hazen

IPC分类号： B61L3/00 ,  F02D41/22 ,  F02D41/00 ,  F02M26/08 ,  F02B37/00 ,  F02B37/16

摘要： Various methods and systems are provided for detecting surge of a turbocharger during engine operation. As one example, a system includes an engine coupled to a low pressure turbocharger and a high pressure turbocharger; and a controller with non-transitory instructions stored in memory that when executed during operation of the engine cause the controller to: indicate an occurrence of surge of the high pressure turbocharger in response to a deviation of a modeled speed of the high pressure turbocharger from a measured speed of the high pressure turbocharger by a threshold amount, where the modeled speed tracks the measured speed during non-surge conditions, as engine operating conditions change.