公开(公告)号：US09879593B2

公开(公告)日：2018-01-30

申请号：US14957758

申请日：2015-12-03

Applicant: GM Global Technology Operations LLC

Inventor： Yue-Yun Wang ,  Steven E. Muldoon ,  Jörg Bernards ,  Martin Suchy

IPC: F02B37/18 ,  F02B37/22 ,  F02B37/24

CPC classification number: F02B37/186 ,  F02B37/18 ,  F02B37/22 ,  F02B37/24 ,  F05B2220/40 ,  Y02T10/144

Abstract: A system according to the principles of the present disclosure includes a target turbocharger position module and a turbocharger control module. The target turbocharger position module determines a target position of a turbocharger based on a relationship between power generated by a compressor of the turbocharger, inertia of a shaft in a turbine of the turbocharger, and power generated by the turbine. The target turbocharger position includes at least one of a target vane position and a target wastegate position. The turbocharger control module controls the turbocharger based on the target turbocharger position.

公开(公告)号：US20180306102A1

公开(公告)日：2018-10-25

申请号：US15496819

申请日：2017-04-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yue-Yun Wang ,  Martin Suchy ,  Joerg Bernards

IPC: F02B37/18

CPC classification number: F02B37/186 ,  F02B37/16 ,  F02B37/18 ,  F02B37/22 ,  F05B2220/40 ,  Y02T10/144

Abstract: An internal combustion engine has a cylinder configured to combust an air-fuel mixture and expel an exhaust gas and a turbocharger for generating a pressurized airflow to the cylinder. The turbocharger includes a turbine scroll defining an inlet and an outlet, an exhaust gas driven rotating assembly having a turbine wheel disposed inside the turbine scroll, and a waste-gate defining an opening. A first sensor detects turbine outlet pressure. A second sensor detects turbine inlet temperature. A controller determines an effective area of the waste-gate opening and an exhaust gas mass flow-rate. The controller also determines a turbine inlet pressure in response to the detected turbine outlet pressure and the turbine inlet temperature, and the determined waste-gate opening effective area and the exhaust gas mass flow-rate. The controller additionally regulates a supply of fuel to the cylinder corresponding to the pressurized airflow affected by the determined turbine inlet pressure.

公开(公告)号：US20150101578A1

公开(公告)日：2015-04-16

申请号：US14514170

申请日：2014-10-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Martin Suchy ,  Joerg Bernards ,  Alexander Klein

IPC: F02D41/00 ,  F02M25/07

CPC classification number: F02D41/0007 ,  F02B2037/122 ,  F02D41/1445 ,  F02D41/1446 ,  F02D2041/1433 ,  F02D2200/0402 ,  F02D2200/0408 ,  F02M26/05 ,  Y02T10/144

Abstract: A method of estimating a boost pressure of a turbocharger is disclosed. A throttle body temperature is estimated as a function of engine operating parameters. An intake air mass flow and an exhaust mass flow are estimated as a function of the throttle body temperature. A turbine inlet pressure and a turbine outlet pressure are estimated as a function of engine operating parameters. A turbine speed is estimated as a function of the intake air mass flow, exhaust mass flow and turbine inlet and outlet pressure. The boost pressure is estimated as a function of the turbine speed. Estimation of the maximum boost pressure of a turbocharged internal combustion engine is performed method cyclically as follows: estimating a throttle temperature, estimating an air mass flow and an exhaust mass flow, estimating a turbine inlet pressure and a turbine outlet pressure, estimating a turbine speed, and estimating the maximum boost pressure.

Abstract translation: 公开了一种估计涡轮增压器的增压压力的方法。 作为发动机工作参数的函数估计节气门体温。 估计进气质量流量和排气质量流量作为节气门体温度的函数。 涡轮进口压力和涡轮出口压力被估计为发动机工作参数的函数。 涡轮速度被估计为进气质量流量，排气质量流量和涡轮机入口压力和出口压力的函数。 推动压力被估计为涡轮机速度的函数。 涡轮增压内燃机的最大增压压力的估计是循环地执行如下：估计节气门温度，估计空气质量流量和排气质量流量，估计涡轮机入口压力和涡轮机出口压力，估计涡轮机转速 ，并估计最大增压压力。

公开(公告)号：US10260405B2

公开(公告)日：2019-04-16

申请号：US15496819

申请日：2017-04-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yue-Yun Wang ,  Martin Suchy ,  Joerg Bernards

IPC: F02B37/16 ,  F02B37/22 ,  F02B37/18

Abstract: An internal combustion engine has a cylinder configured to combust an air-fuel mixture and expel an exhaust gas and a turbocharger for generating a pressurized airflow to the cylinder. The turbocharger includes a turbine scroll defining an inlet and an outlet, an exhaust gas driven rotating assembly having a turbine wheel disposed inside the turbine scroll, and a waste-gate defining an opening. A first sensor detects turbine outlet pressure. A second sensor detects turbine inlet temperature. A controller determines an effective area of the waste-gate opening and an exhaust gas mass flow-rate. The controller also determines a turbine inlet pressure in response to the detected turbine outlet pressure and the turbine inlet temperature, and the determined waste-gate opening effective area and the exhaust gas mass flow-rate. The controller additionally regulates a supply of fuel to the cylinder corresponding to the pressurized airflow affected by the determined turbine inlet pressure.

公开(公告)号：US09951698B2

公开(公告)日：2018-04-24

申请号：US14514170

申请日：2014-10-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Martin Suchy ,  Joerg Bernards ,  Alexander Klein

IPC: F02D41/00 ,  F02M26/05 ,  F02D41/14 ,  F02B37/12

CPC classification number: F02D41/0007 ,  F02B2037/122 ,  F02D41/1445 ,  F02D41/1446 ,  F02D2041/1433 ,  F02D2200/0402 ,  F02D2200/0408 ,  F02M26/05 ,  Y02T10/144

Abstract: A method of estimating a boost pressure of a turbocharger is disclosed. A throttle body temperature is estimated as a function of engine operating parameters. An intake air mass flow and an exhaust mass flow are estimated as a function of the throttle body temperature. A turbine inlet pressure and a turbine outlet pressure are estimated as a function of engine operating parameters. A turbine speed is estimated as a function of the intake air mass flow, exhaust mass flow and turbine inlet and outlet pressure. The boost pressure is estimated as a function of the turbine speed. Estimation of the maximum boost pressure of a turbocharged internal combustion engine is performed method cyclically as follows: estimating a throttle temperature, estimating an air mass flow and an exhaust mass flow, estimating a turbine inlet pressure and a turbine outlet pressure, estimating a turbine speed, and estimating the maximum boost pressure.