公开(公告)号：EP0952322A3

公开(公告)日：1999-11-03

申请号：EP99109875.7

申请日：1995-07-18

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Carnevale, Claudio ,  Coin, Davide ,  Marica, Stefano ,  Serra, Gabriele ,  Sgatti, Stefano

IPC: F02D41/14 ,  F02D41/22

CPC classification number: F02D41/1441 ,  F02D41/1482 ,  F02D41/1495 ,  F02D2041/1409 ,  F02D2041/1422

Abstract: An electronic concentration control system in which a first exhaust gas composition sensor (16) located in an exhaust pipe (9) downstream from a catalytic converter (11) is connected to an input to a P.I. circuit (28) which generates a control output signal (K02) comprising a succession of opposing triangular ramps. The system includes a second exhaust gas composition sensor (14) located in the exhaust pipe (9) upstream from the catalytic converter (11) generating a signal which is fed to a proportional integral circuit (30) whose integrating and multiplying coefficients (Ki,Kp) are altered on the basis of the control signal (K02). The system further comprises a diagnostic circuit (50) for detecting malfunction function of the second exhaust gas composition sensor (14).

Abstract translation: 一种电子浓度控制系统，其中位于催化转换器（11）下游的排气管（9）中的第一排气成分传感器（16）连接到P.I的输入端。 电路（28）产生包括一系列相对的三角形斜坡的控制输出信号（K02）。 该系统包括位于催化转化器（11）上游的排气管（9）中的第二废气成分传感器（14），其产生信号，该信号被馈送到比例积分电路（30），积分和积分系数（Ki， Kp）根据控制信号（K02）改变。 该系统还包括用于检测第二排气成分传感器（14）的故障功能的诊断电路（50）。

公开(公告)号：EP0694684B1

公开(公告)日：1999-12-29

申请号：EP95111274.7

申请日：1995-07-18

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Carnevale, Claudio ,  Coin, Davide ,  Marica, Stefano ,  Serra, Gabriele ,  Sgatti, Stefano

IPC: F02D41/14

CPC classification number: F02D41/1441 ,  F02D41/1482 ,  F02D41/1495 ,  F02D2041/1409 ,  F02D2041/1422

公开(公告)号：EP0694685B1

公开(公告)日：1998-12-02

申请号：EP95111275.4

申请日：1995-07-18

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Carnevale, Claudio ,  Coin, Davide ,  Marica, Stefano ,  Serra, Gabriele ,  Sgatti, Stefano

IPC: F02D41/14

CPC classification number: F02D41/1441 ,  F02D41/1482 ,  F02D41/1495

公开(公告)号：EP0694685A2

公开(公告)日：1996-01-31

申请号：EP95111275.4

申请日：1995-07-18

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Carnevale, Claudio ,  Coin, Davide ,  Marica, Stefano ,  Serra, Gabriele ,  Sgatti, Stefano

IPC: F02D41/22 ,  F02D41/14

CPC classification number: F02D41/1441 ,  F02D41/1482 ,  F02D41/1495

Abstract: An electronic concentration control system in which a first exhaust gas composition sensor (16) located in an exhaust pipe (9) downstream from a catalytic converter (11) is connected to an input to a P.I. circuit (28) which generates a control output signal (K02) comprising a succession of opposing triangular ramps. The system includes a second exhaust gas composition sensor (14) located in the exhaust pipe (9) upstream from the catalytic converter (11) generating a signal which is fed to a proportional integral circuit (30) whose integrating and multiplying coefficients (Ki,Kp) are altered on the basis of the control signal (K02).
The system includes a diagnostic circuit (50) which checks the efficiency of the first and second sensors (16, 14).

Abstract translation: 一种电子浓度控制系统，其中位于催化转换器（11）下游的排气管（9）中的第一排气成分传感器（16）连接到P.I的输入端。 电路（28）产生包括一系列相对的三角形斜坡的控制输出信号（K02）。 该系统包括位于催化转化器（11）上游的排气管（9）中的第二废气成分传感器（14），其产生信号，该信号被馈送到比例积分电路（30），积分和积分系数（Ki， Kp）根据控制信号（K02）改变。 该系统包括检查第一和第二传感器（16,14）的效率的诊断电路（50）。

公开(公告)号：EP0952322A2

公开(公告)日：1999-10-27

申请号：EP99109875.7

申请日：1995-07-18

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Carnevale, Claudio ,  Coin, Davide ,  Marica, Stefano ,  Serra, Gabriele ,  Sgatti, Stefano

IPC: F02D41/14 ,  F02D41/22

CPC classification number: F02D41/1441 ,  F02D41/1482 ,  F02D41/1495 ,  F02D2041/1409 ,  F02D2041/1422

Abstract: An electronic concentration control system in which a first exhaust gas composition sensor (16) located in an exhaust pipe (9) downstream from a catalytic converter (11) is connected to an input to a P.I. circuit (28) which generates a control output signal (K02) comprising a succession of opposing triangular ramps. The system includes a second exhaust gas composition sensor (14) located in the exhaust pipe (9) upstream from the catalytic converter (11) generating a signal which is fed to a proportional integral circuit (30) whose integrating and multiplying coefficients (Ki,Kp) are altered on the basis of the control signal (K02). The system further comprises a diagnostic circuit (50) for detecting malfunction function of the second exhaust gas composition sensor (14).

Abstract translation: 一种电子浓度控制系统，其中位于催化转化器（11）下游的排气管（9）中的第一排气组成传感器（16）连接到P.I.的输入。 电路（28），其产生包括一系列相对的三角形斜坡的控制输出信号（K02）。 该系统包括位于催化转化器（11）上游的排气管（9）中的第二废气组成传感器（14），产生一个信号，该信号被馈送到比例积分电路（30），其积分和乘法系数（Ki， Kp）根据控制信号（K02）而改变。 该系统还包括用于检测第二废气组成传感器（14）的故障功能的诊断电路（50）。

公开(公告)号：EP0694685A3

公开(公告)日：1996-09-18

申请号：EP95111275.4

申请日：1995-07-18

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Carnevale, Claudio ,  Coin, Davide ,  Marica, Stefano ,  Serra, Gabriele ,  Sgatti, Stefano

IPC: F02D41/22 ,  F02D41/14

CPC classification number: F02D41/1441 ,  F02D41/1482 ,  F02D41/1495

Abstract: An electronic concentration control system in which a first exhaust gas composition sensor (16) located in an exhaust pipe (9) downstream from a catalytic converter (11) is connected to an input to a P.I. circuit (28) which generates a control output signal (K02) comprising a succession of opposing triangular ramps. The system includes a second exhaust gas composition sensor (14) located in the exhaust pipe (9) upstream from the catalytic converter (11) generating a signal which is fed to a proportional integral circuit (30) whose integrating and multiplying coefficients (Ki,Kp) are altered on the basis of the control signal (K02). The system includes a diagnostic circuit (50) which checks the efficiency of the first and second sensors (16, 14).

Abstract translation: 一种电子浓度控制系统，其中位于催化转化器（11）下游的排气管（9）中的第一排气组成传感器（16）连接到P.I.的输入。 电路（28），其产生包括一系列相对的三角形斜坡的控制输出信号（K02）。 该系统包括位于催化转化器（11）上游的排气管（9）中的第二废气组成传感器（14），产生一个信号，该信号被馈送到比例积分电路（30），其积分和乘法系数（Ki， Kp）根据控制信号（K02）而改变。 该系统包括检测第一和第二传感器（16,14）的效率的诊断电路（50）。 $$ $$

公开(公告)号：EP0694684A3

公开(公告)日：1996-09-11

申请号：EP95111274.7

申请日：1995-07-18

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Carnevale, Claudio ,  Coin, Davide ,  Marica, Stefano ,  Serra, Gabriele ,  Sgatti, Stefano

IPC: F02D41/14

CPC classification number: F02D41/1441 ,  F02D41/1482 ,  F02D41/1495 ,  F02D2041/1409 ,  F02D2041/1422

Abstract: An electronic concentration control system in which a first exhaust gas composition sensor (16) located in an exhaust pipe (9) downstream from a catalytic converter (11) is connected to an input to a P.I. circuit (28) which generates a control output signal (K02) comprising a succession of opposing triangular ramps. The system includes a second exhaust gas composition sensor (14) located in the exhaust pipe (9) upstream from the catalytic converter (11) generating a signal which is fed to a proportional integral circuit (30) whose integrating and multiplying coefficients (Ki,Kp) are altered on the basis of the control signal (K02).

Abstract translation: 一种电子浓度控制系统，其中位于催化转换器（11）下游的排气管（9）中的第一排气成分传感器（16）连接到P.I的输入端。 电路（28）产生包括一系列相对的三角形斜坡的控制输出信号（K02）。 该系统包括位于催化转化器（11）上游的排气管（9）中的第二废气成分传感器（14），其产生信号，该信号被馈送到比例积分电路（30），积分和积分系数（Ki， Kp）根据控制信号（K02）改变。

公开(公告)号：EP0694684A2

公开(公告)日：1996-01-31

申请号：EP95111274.7

申请日：1995-07-18

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Carnevale, Claudio ,  Coin, Davide ,  Marica, Stefano ,  Serra, Gabriele ,  Sgatti, Stefano

IPC: F02D41/14

CPC classification number: F02D41/1441 ,  F02D41/1482 ,  F02D41/1495 ,  F02D2041/1409 ,  F02D2041/1422

Abstract: An electronic concentration control system in which a first exhaust gas composition sensor (16) located in an exhaust pipe (9) downstream from a catalytic converter (11) is connected to an input to a P.I. circuit (28) which generates a control output signal (K02) comprising a succession of opposing triangular ramps. The system includes a second exhaust gas composition sensor (14) located in the exhaust pipe (9) upstream from the catalytic converter (11) generating a signal which is fed to a proportional integral circuit (30) whose integrating and multiplying coefficients (Ki,Kp) are altered on the basis of the control signal (K02).

Abstract translation: 一种电子浓度控制系统，其中位于催化转化器（11）下游的排气管（9）中的第一排气组成传感器（16）连接到P.I.的输入。 电路（28），其产生包括一系列相对的三角形斜坡的控制输出信号（K02）。 该系统包括位于催化转化器（11）上游的排气管（9）中的第二废气组成传感器（14），产生一个信号，该信号被馈送到比例积分电路（30），其积分和乘法系数（Ki， Kp）根据控制信号（K02）而改变。 $$