EXHAUST GAS CONTROL IN AN ENGINE HAVING A TWO-STAGE TURBOCHARGER
    2.
    发明申请
    EXHAUST GAS CONTROL IN AN ENGINE HAVING A TWO-STAGE TURBOCHARGER 审中-公开
    具有两级涡轮增压器的发动机中的排气控制

    公开(公告)号:WO2005042933A2

    公开(公告)日:2005-05-12

    申请号:PCT/US2004/031646

    申请日:2004-09-04

    IPC: F01N

    Abstract: A control system (58) for controlling the extent to which a valve (50) selectively bypasses exhaust flow around one of two turbines (18T, 20T) in an engine exhaust system (14). A desired set-point (TCBC_DES) and the actual set-point (EBP_KPG) of operation of the valve are used to develop a set-point error (TCBC_ERR) for closed-loop control of the actual set-point (EBP_KPG). A data value for closed-loop gain (KP, KI) is selected from a schedule (164, 166) based on engine speed (N) and fueling (MFDES). The selected data values of closed-loop gain (KP, KI) and the set-point error data value (TCBC_ERR) are used to create a data value for a closed-loop output (TCBC_DTY_P, TCBC_DTY_I) that is used along with a feed forward parameter (TCBC_DTY_FF) to create a data value for a final output (TCBC_DTY_PIF) for forcing the actual set-point (EBP_KPG) to the desired set-point (TCBC_DES).

    Abstract translation: 控制系统(58),用于控制阀(50)围绕发动机排气系统(14)中的两个涡轮机(18T,20T)中的一个选择性地绕过排气的程度。 使用期望的设定点(TCBC_DES)和阀的操作的实际设定点(EBP_KPG)来开发用于实际设定点(EBP_KPG)的闭环控制的设定点误差(TCBC_ERR)。 基于发动机转速(N)和加油(MFDES),从时间表(164,166)中选择闭环增益(KP,KI)的数据值。 闭环增益(KP,KI)和设定点误差数据值(TCBC_ERR)的选定数据值用于创建与馈送一起使用的闭环输出(TCBC_DTY_P,TCBC_DTY_I)的数据值 前向参数(TCBC_DTY_FF),以创建用于强制实际设定点(EBP_KPG)到所需设定点(TCBC_DES)的最终输出(TCBC_DTY_PIF)的数据值。

    EXHAUST GAS CONTROL IN AN ENGINE HAVING A TWO-STAGE TURBOCHARGER
    3.
    发明申请
    EXHAUST GAS CONTROL IN AN ENGINE HAVING A TWO-STAGE TURBOCHARGER 审中-公开
    具有两级涡轮增压器的发动机中的排气控制

    公开(公告)号:WO2005042933A8

    公开(公告)日:2006-01-05

    申请号:PCT/US2004031646

    申请日:2004-09-28

    Abstract: A control system (58) for controlling the extent to which a valve (50) selectively bypasses exhaust flow around one of two turbines (18T, 20T) in an engine exhaust system (14). A desired set-point (TCBC_DES) and the actual set-point (EBP_KPG) of operation of the valve are used to develop a set-point error (TCBC_ERR) for closed-loop control of the actual set-point (EBP_KPG). A data value for closed-loop gain (KP, KI) is selected from a schedule (164, 166) based on engine speed (N) and fueling (MFDES). The selected data values of closed-loop gain (KP, KI) and the set-point error data value (TCBC_ERR) are used to create a data value for a closed-loop output (TCBC_DTY_P, TCBC_DTY_I) that is used along with a feed forward parameter (TCBC_DTY_FF) to create a data value for a final output (TCBC_DTY_PIF) for forcing the actual set-point (EBP_KPG) to the desired set-point (TCBC_DES).

    Abstract translation: 控制系统(58),用于控制阀(50)围绕发动机排气系统(14)中的两个涡轮机(18T,20T)中的一个选择性地绕过排气的程度。 使用期望的设定点(TCBC_DES)和阀的操作的实际设定点(EBP_KPG)来开发用于实际设定点(EBP_KPG)的闭环控制的设定点误差(TCBC_ERR)。 基于发动机转速(N)和加油(MFDES),从时间表(164,166)中选择闭环增益(KP,KI)的数据值。 闭环增益(KP,KI)和设定点误差数据值(TCBC_ERR)的选定数据值用于创建与馈送一起使用的闭环输出(TCBC_DTY_P,TCBC_DTY_I)的数据值 前向参数(TCBC_DTY_FF),以创建用于强制实际设定点(EBP_KPG)到所需设定点(TCBC_DES)的最终输出(TCBC_DTY_PIF)的数据值。

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