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    VERFAHREN UND ELEKTRONISCHE STEUEREINRICHTUNG ZUR DIAGNOSE EINES KATALYSATORS
    1.
    发明公开
    VERFAHREN UND ELEKTRONISCHE STEUEREINRICHTUNG ZUR DIAGNOSE EINES KATALYSATORS 有权

    公开(公告)号：EP1502015A1

    公开(公告)日：2005-02-02

    申请号：EP02792643.5

    申请日：2002-12-07

    申请人： ROBERT BOSCH GMBH

    发明人： WACKEROW, René ,  SCHNEIDER, Erich

    IPC分类号： F01N11/00

    CPC分类号： F01N11/007 ,  F01N2550/02 ,  F01N2900/0422 ,  Y02T10/47

    摘要： The invention relates to a method for assessing the operability of a catalytic converter (7) mounted in the exhaust gas system (6) of an internal combustion engine (1). The inventive method comprises the following steps: recording the signal (USHK) of an exhaust gas probe (9) situated behind the catalytic converter; forming a limit value model amplitude (AHKF) from at least one quantity (ML, n) occurring upstream from the catalytic converter (7); forming a catalytic converter assessment quantity (DKATI) whose value increases with a growing difference of the amplitude (AHK) of the signal (USHK) from the limit value model amplitude (AHKF); assessing the operability of the catalytic converter (7) based on the catalytic converter assessment quantity (DAKTI), and; ceasing the assessment when an oxygen-dependent catalytic converter load (KATIN) exceeds or falls below a threshold value. The method is characterized in that the threshold value is predetermined according to the signal (USHK) of the exhaust gas probe (9) situated behind the catalytic converter.

    摘要翻译： 本发明涉及一种用于评估安装在内燃机（1）的排气系统（6）中的催化转化器（7）的可操作性的方法。 本发明的方法包括以下步骤：记录位于催化转化器后面的废气探测器（9）的信号（USHK） 根据在所述催化转化器（7）上游出现的至少一个量（ML，n）形成极限值模型振幅（AHKF）; 形成催化转换器评估量（DKATI），其值随着信号（USHK）的振幅（AHK）与极限值模型振幅（AHKF）的增大差异而增加; 基于催化转化器评估量（DAKTI）评估催化转化器（7）的可操作性，并且; 当氧气依赖性催化转化器负荷（KATIN）超过或低于阈值时停止评估。 该方法的特征在于，阈值根据位于催化转化器后面的废气探测器（9）的信号（USHK）预先确定。

    VERFAHREN ZUM EINSTELLEN VON LUFT- UND KRAFTSTOFFMENGEN FÜR EINE MEHRZYLINDRIGE BRENNKRAFTMASCHINE
    4.
    发明授权
    VERFAHREN ZUM EINSTELLEN VON LUFT- UND KRAFTSTOFFMENGEN FÜR EINE MEHRZYLINDRIGE BRENNKRAFTMASCHINE 失效
    METHOD FOR SETTING空气和燃料量用于多气缸内燃机。

    公开(公告)号：EP0441908B1

    公开(公告)日：1994-01-19

    申请号：EP90910552.0

    申请日：1990-07-24

    申请人： ROBERT BOSCH GMBH

    发明人： SCHNAIBEL, Eberhard ,  SCHNEIDER, Erich ,  KLENK, Martin ,  MOSER, Winfried ,  KLINKE, Christian ,  REUSCHENBACH, Lutz ,  BENNINGER, Klaus

    IPC分类号： F02D43/00 ,  F02D41/04

    CPC分类号： F02D41/045 ,  F02D43/00

    摘要： In a process for adjusting the quantities of air and fuel in a multi-cylinder internal combustion engine with individual injection for each cylinder as far as possible, the quantity of fuel for each injection cycle is calculated taking account of the probable inlet pipe pressure during the period of opening of the inlet valve. After a change in the position of the accelerator pedal the throttle valve is not adjustable until the quantities of fuel dictating the new throttle valve setting have been calculated and essentially injected. Because the quantities of fuel to be injected are calculated with reference not to the current flow of air but to the determinant inlet pipe pressure during the inlet cycle and as a change in the throttle valve control which would cause a change in the inlet pipe pressure not taken into account in the injection quantity calculation is permitted only after a fresh calculation, there is, even with the internal combustion engine is unstable modes, an optimum ratio between the quantities of fuel and air per injection to maintain a predetermined air/fuel ratio. Besides the future inlet pipe pressure, account is also taken in calculating the quantity of fuel to be injected of the quantity of fuel which is transferred to or released from a wall film.

    STEUER-/REGELSYSTEM FÜR EINE BRENNKRAFTMASCHINE
    6.
    发明授权
    STEUER-/REGELSYSTEM FÜR EINE BRENNKRAFTMASCHINE 失效
    内燃机控制与调节系统

    公开(公告)号：EP0414684B1

    公开(公告)日：1992-02-12

    申请号：EP88909290.4

    申请日：1988-11-03

    申请人： ROBERT BOSCH GMBH

    发明人： SCHNAIBEL, Eberhard ,  SCHNEIDER, Erich

    IPC分类号： F02D41/14 ,  F02D41/26

    CPC分类号： F02D41/2496 ,  F02D41/1402

    摘要： A control and regulating system for adjusting the air/fuel mixture of an internal combustion engine (12) comprises an oxygen probe (lambda probe) (14) exposed to the exhaust hums of the engine (12) which emits an output signal which is an index for the air coefficient lambda. A basic memory (10) stores the fuel dosing times which are used for a preliminary control of the internal combustion engine (12) until a predetermined air coefficient lambda is obtained. A target value memory (18) stores target values of the air coefficient and a regulating device (20) corrects the fuel dosing times read in a basic memory (10) in function of the output signal measured by the lambda probe (14) and a corresponding target value read in a target value memory (18). The reciprocal of the air coefficient lambda is stored in a target value memory (18). Each fuel dosing time in a basic memory (10) is linked by multiplication to the corresponding reciprocal of the air coefficient lambda read in a target value memory (18). A conversion device (16) converts the output signal to a corresponding reciprocal of the air coefficient lambda by means of a relation characteristic of the probe and known at least approximately between the output signal of the lambda probe (14) and the air coefficent lambda. By taking into account the linear relation between the reciprocal of the air coefficent lambda and the quantity of fuel (fuel dosing time), rapid and precise regulation is achieved by means of a simple linear regulating device.

    VERFAHREN UND VORRICHTUNG ZUR DIGITALEN REGELUNG DER FAHRGESCHWINDIGKEIT EINES KRAFTFAHRZEUGS
    7.
    发明授权
    VERFAHREN UND VORRICHTUNG ZUR DIGITALEN REGELUNG DER FAHRGESCHWINDIGKEIT EINES KRAFTFAHRZEUGS 失效
    用于数字调节电动车行驶速度的方法和装置

    公开(公告)号：EP0015281B1

    公开(公告)日：1984-09-19

    申请号：EP79900794.3

    申请日：1979-06-21

    申请人： ROBERT BOSCH GMBH

    发明人： SCHNEIDER, Erich ,  FLEISCHER, Helmut ,  NONNENMANN, Wolfgang ,  GERUM, Benno

    IPC分类号： G05D13/62 ,  G05B19/04 ,  B60K31/00

    CPC分类号： B60K31/04 ,  G05B19/075

    摘要： The digital device for regulating the running speed of a motor vehicle comprises means (47, 51, 52) giving the value of the actual speed, storage means (46) for storing an order value proportional to the desired speed, means (60, 62, 119) for effecting a comparison between the real value and the order value, and regulating means (78, 100) which may be controlled by the difference between these values and acting for example on the throttle valve. By actuating a key (14 to 16) the real value is transferred into the storage means of the order value (46) and gives the running speed. To value the running speed, second means have been provided for storing the order value (41) wherein a ramp may be generated by digital counting processes. During such variation of the speed, the value of the moment of the ramp provides an additional order value, so that the speed is brought to the new value by means of this additional value. The ramp presents preferably two different gradients respectively, one gradient becoming always lower.

    VERFAHREN UND ELEKTRONISCHE STEUEREINRICHTUNG ZUR DIAGNOSE EINES KATALYSATORS
    8.
    发明授权
    VERFAHREN UND ELEKTRONISCHE STEUEREINRICHTUNG ZUR DIAGNOSE EINES KATALYSATORS 有权
    方法和电子装置诊断的催化剂

    公开(公告)号：EP1502015B1

    公开(公告)日：2005-08-31

    申请号：EP02792643.5

    申请日：2002-12-07

    申请人： ROBERT BOSCH GMBH

    发明人： WACKEROW, René ,  SCHNEIDER, Erich

    IPC分类号： F01N11/00

    CPC分类号： F01N11/007 ,  F01N2550/02 ,  F01N2900/0422 ,  Y02T10/47

    摘要： The invention relates to a method for assessing the operability of a catalytic converter (7) mounted in the exhaust gas system (6) of an internal combustion engine (1). The inventive method comprises the following steps: recording the signal (USHK) of an exhaust gas probe (9) situated behind the catalytic converter; forming a limit value model amplitude (AHKF) from at least one quantity (ML, n) occurring upstream from the catalytic converter (7); forming a catalytic converter assessment quantity (DKATI) whose value increases with a growing difference of the amplitude (AHK) of the signal (USHK) from the limit value model amplitude (AHKF); assessing the operability of the catalytic converter (7) based on the catalytic converter assessment quantity (DAKTI), and; ceasing the assessment when an oxygen-dependent catalytic converter load (KATIN) exceeds or falls below a threshold value. The method is characterized in that the threshold value is predetermined according to the signal (USHK) of the exhaust gas probe (9) situated behind the catalytic converter.