Method for controlling fuel injection in a multifuel internal-combustion engine in the event of pressure jumps
    32.
    发明公开
    Method for controlling fuel injection in a multifuel internal-combustion engine in the event of pressure jumps 有权
    一种用于在压力跳跃的情况下,控制内燃机Mehfachbrennstoff燃料喷射方法

    公开(公告)号:EP2527624A2

    公开(公告)日:2012-11-28

    申请号:EP12169101.8

    申请日:2012-05-23

    Abstract: A method for controlling fuel injection in a multifuel internal-combustion engine (1) that can inject alternatively a liquid fuel and a gaseous fuel; the control method envisages the steps of: injecting the gaseous fuel by means of at least one corresponding injector (15); cyclically measuring the pressure (P rail ) of the gaseous fuel within the common channel (22); determining at least one upper-limit threshold (P rail-min ; P rail-max ) for the pressure (P rail ) of the gaseous fuel within the common channel (22); comparing the pressure (P rail ) of the gaseous fuel within the common channel (22) with the upper-limit threshold (P rail-min ; P rail-max ); and carrying out an automatic fuel switch from the gaseous fuel to the liquid fuel when the pressure (P rail ) of the gaseous fuel within the common channel (22) exceeds the upper-limit threshold (P rail-min ; Prail-max).

    Abstract translation: 一种用于在多燃料内燃机(1)没有可替代注入液体燃料和气体燃料的燃料喷射控制方法; 该控制方法设想如下步骤:注入由至少一个均值的气体燃料喷射器CORRESPONDING(15); 周期性地测量所述气体燃料的公共通道内的压力(P轨道)(22); 确定性采矿至少一个上限阈值(P轨分钟,P轨 - 最大)为气态燃料的公共信道(22)内的压力(P轨道); 气态燃料的压力(P轨道)与所述上限阈值的公共信道(22)内进行比较(P轨分钟,P轨 - 最大); 并进行自动燃料开关的从气体燃料向液体燃料。当气体燃料的公共信道(22)内的压力(P轨道)超过上限阈值(P轨分钟; Prail - 最大)。

    Electronic air-fuel ratio control system for internal combustion engines
    35.
    发明公开
    Electronic air-fuel ratio control system for internal combustion engines 失效
    Elektronisches Steuersystemfürdas Luft /Kraftstoffverhältniseiner Brennkraftmaschine

    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

    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)。

    Electronic gas concentration control system
    36.
    发明公开
    Electronic gas concentration control system 失效
    Elektronisches Gaskonzentrationssteuerungssystem

    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

    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)。

    Electronic gas concentration control system
    37.
    发明公开
    Electronic gas concentration control system 失效
    电子气体浓度控制系统

    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

    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。

    Electronic gas concentration control system
    38.
    发明公开
    Electronic gas concentration control system 失效
    Elektronisches Gaskonzentrationssteuerungssystem

    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

    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。

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