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公开(公告)号：US20210095606A1
公开(公告)日：2021-04-01
申请号：US17117432
申请日：2020-12-10
Applicant: Cummins Inc.
Inventor： Mayura H. Halbe , Ming-Feng Hsieh
Abstract: Systems, methods and apparatus are disclosed for providing or maintaining a target surge margin at the compressor during steady state engine operating conditions and to avoid compressor surge during transients by controlling a compressor recirculation valve position to a commanded position. The estimated surge margin can be determined in response to the measured pressure ratio across the compressor, an estimated compressor flow, and a compressor map for the compressor.
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公开(公告)号：US20200309049A1
公开(公告)日：2020-10-01
申请号：US16902698
申请日：2020-06-16
Applicant: Cummins Inc.
Inventor： Mayura H. Halbe , Robert J. Thomas , Ming-Feng Hsieh
Abstract: Systems, methods and apparatus are disclosed for producing a target compressor outlet pressure that is based on a desired pressure differential across an intake throttle of an internal combustion engine and an intake manifold pressure by opening or closing a compressor recirculation valve and a turbocharger wastegate to commanded positions based on the target compressor outlet pressure.
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公开(公告)号：US11530657B2
公开(公告)日：2022-12-20
申请号：US17117432
申请日：2020-12-10
Applicant: Cummins Inc.
Inventor： Mayura H. Halbe , Ming-Feng Hsieh
IPC: F02D41/00 , F02B37/16 , F04D27/02 , F02M26/13 , F02B37/18 , F02D9/02 , F02M31/20 , F02M35/10 , F02B37/12
Abstract: Systems, methods and apparatus are disclosed for providing or maintaining a target surge margin at the compressor during steady state engine operating conditions and to avoid compressor surge during transients by controlling a compressor recirculation valve position to a commanded position. The estimated surge margin can be determined in response to the measured pressure ratio across the compressor, an estimated compressor flow, and a compressor map for the compressor.
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