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公开(公告)号：US10962019B2
公开(公告)日：2021-03-30
申请号：US15697608
申请日：2017-09-07
IPC分类号： F04D27/02 , F02D23/02 , F02D41/22 , F02B37/12 , F02D41/00 , F04D27/00 , F04D17/10 , F02M26/08 , F02D21/08
摘要： Methods are provided for identifying degradation in components of a compressor recirculation valve (CRV). One method may include inferring degradation of the CRV based on adaptation of a compressor surge line outside an expected range.
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公开(公告)号：US10273874B2
公开(公告)日：2019-04-30
申请号：US15130500
申请日：2016-04-15
IPC分类号： F02B37/12 , F02D41/00 , F02D41/24 , F02D41/26 , F02D9/02 , G01C21/26 , F02D41/14 , F02D23/00 , F02D41/18
摘要： Methods and systems are provided for controlling a boosted engine system, having a turbocharger and a charge air cooler, to limit overheating of a compressor outlet. In one example, a method includes predicting an engine torque profile based on current and future engine operating conditions. The method then models a compressor outlet temperature profile and reduces engine torque output to limit overheating of the compressor outlet.
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公开(公告)号：US10161303B2
公开(公告)日：2018-12-25
申请号：US15204731
申请日：2016-07-07
IPC分类号： F02B39/10 , F02B39/12 , F02D23/00 , F02D41/26 , F02D41/14 , F02P5/04 , F02P5/153 , F02D41/00
摘要： Systems and methods for generating auxiliary torque are provided. In one example, a method for controlling a supercharger comprises, responsive to requested torque exceeding spark authority of an engine, varying a current applied to a motor of the supercharger to provide an amount of torque to a crankshaft of the engine. In this way, a supercharger can be controlled to compensate for an engine torque shortfall.
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公开(公告)号：US20180355788A1
公开(公告)日：2018-12-13
申请号：US16106543
申请日：2018-08-21
IPC分类号： F02B37/18
CPC分类号： F02B37/183 , F05B2270/404 , Y02T10/144
摘要： Methods and systems are provided for controlling a wastegate coupled to a turbine. In one example, a method may include during steady engine operation, actuating a wastegate to introduce an oscillation in boost pressure, and updating gain of a wastegate feedback controller responsive to the oscillation in boost pressure.
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公开(公告)号：US20170335754A1
公开(公告)日：2017-11-23
申请号：US15160880
申请日：2016-05-20
CPC分类号： F02B37/04 , F02B37/127 , F02B37/14 , F02B37/16 , F02B37/18 , F02B39/10 , F02B2037/122 , F02B2039/168 , F02D11/10 , F02D41/0007 , F02D41/10 , F02D2200/0406 , Y02T10/144
摘要： Methods and systems are provided for controlling boost pressure in a staged engine system comprising a turbocharger and an upstream electric supercharger. In one example, a method may include coordinating the operation of the electric supercharger and an electric supercharger bypass valve and to open the electric supercharger bypass valve to reduce the extent and duration of electric supercharger overboost.
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公开(公告)号：US20170335753A1
公开(公告)日：2017-11-23
申请号：US15160842
申请日：2016-05-20
CPC分类号： F02B37/04 , F02B37/127 , F02B37/14 , F02B37/16 , F02B37/18 , F02B39/10 , F02B2037/122 , F02B2039/168 , F02D41/0007 , F02D2200/0406 , Y02T10/144
摘要： Methods and systems are provided for controlling boost pressure in a staged engine system comprising a turbocharger and an upstream electric supercharger. In one example, a method may include accelerating an electric supercharger to choke the flow of air to the engine in the event of turbocharger overboost.
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公开(公告)号：US20170226941A1
公开(公告)日：2017-08-10
申请号：US15497136
申请日：2017-04-25
CPC分类号： F02D41/0007 , F02B37/16 , F02B37/18 , F02B2039/162 , F02D41/221 , F02D2011/108 , F02D2200/0406 , Y02T10/144 , Y02T10/40
摘要： Systems and methods for determining the presence or absence of deposits that may accumulate within a compressor recirculation valve positioned in parallel with a turbocharger compressor are presented. The systems and methods adjust actuators to maintain engine operation such that it may be more difficult for a driver to become aware that a compressor recirculation valve diagnostic is being executed.
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公开(公告)号：US09695740B2
公开(公告)日：2017-07-04
申请号：US14799342
申请日：2015-07-14
CPC分类号： F02B37/14 , F02B37/04 , F02B37/127 , F02B37/16 , F02B39/10 , F02B2037/122 , F02B2039/168 , F02D41/0007 , F02D2200/0406 , Y02T10/144
摘要： Methods and systems are provided for turbocharger speed control in an engine system having multiple staged charge boosting devices. In one example, compressed air is provided by a turbocharger compressor until a turbocharger speed reaches a limit. Thereafter, a compressor of a downstream supercharger is operated to share the load.
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公开(公告)号：US20160369716A1
公开(公告)日：2016-12-22
申请号：US14740576
申请日：2015-06-16
CPC分类号： F02D41/0007 , F02B29/04 , F02B37/127 , F02D23/00 , Y02T10/144 , Y02T10/146
摘要： Methods are provided for improving boost pressure control in a boosted engine system. In one example, during a tip-in, an air bypass coupled across an intake compressor of the engine system may be kept open for a predetermined time. Keeping the air bypass open during tip-in enables the compressor to spin faster, and this faster speeds may translate into reaching a desired higher boost when the air bypass is subsequently closed in less time than heretofore possible.
摘要翻译： 提供了用于改进增压发动机系统中的增压压力控制的方法。 在一个示例中，在一个提示期间，连接在发动机系统的进气压缩机上的空气旁路可以保持打开预定的时间。 保持空气旁路在顶尖期间打开使压缩机能够更快地旋转，当空气旁路随时在比以前更短的时间内关闭时，这种更快的速度可能转化为达到所需的更高的提升。
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10.发明申请公开(公告)号：US20160169092A1
公开(公告)日：2016-06-16
申请号：US14566442
申请日：2014-12-10
IPC分类号： F02B37/18
CPC分类号： F02D41/0007 , F02B37/16 , F02B37/18 , F02B2039/162 , F02D41/221 , F02D2011/108 , F02D2200/0406 , Y02T10/144 , Y02T10/40
摘要： Systems and methods for determining the presence or absence of deposits that may accumulate within a compressor recirculation valve positioned in parallel with a turbocharger compressor are presented. The systems and methods adjust actuators to maintain engine operation such that it may be more difficult for a driver to become aware that a compressor recirculation valve diagnostic is being executed.
摘要翻译： 提出了用于确定可能积聚在与涡轮增压器压缩机并联的压缩机再循环阀内的沉积物的存在或不存在的系统和方法。 系统和方法调节致动器以维持发动机运转，使得驾驶员可能更难意识到正在执行压缩机再循环阀诊断。
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