公开(公告)号：US5243853A

公开(公告)日：1993-09-14

申请号：US773564

申请日：1991-11-04

申请人： Ulrich Steinbrenner ,  Helmut Denz ,  Gunther Plapp ,  Ulrich Mayer ,  Wolfgang Wagner ,  Stephan Hohne

发明人： Ulrich Steinbrenner ,  Helmut Denz ,  Gunther Plapp ,  Ulrich Mayer ,  Wolfgang Wagner ,  Stephan Hohne

IPC分类号： F02D41/00 ,  F02M25/08

CPC分类号： F02M25/0809

摘要： A method is introduced of checking the drivability of a tank-venting valve (TEV) and of an idle actuator.After actuating the TEV, an additional air/fuel mixture is supplied to the intake region of an internal combustion engine having an air/fuel ratio which can be equal to that at which the engine usually operates (.lambda..sub.0) or greater or less than .lambda..sub.0. Reactions of a .lambda.-control and/or of an idle control can be evaluated in dependence thereon. It is advantageous that a check is made independently of how intense the additional air/fuel mixture is enriched with fuel.

摘要翻译： PCT No.PCT / DE90 / 00231 Sec。 371日期：1991年11月4日 102（e）日期1991年11月4日PCT 1990年3月23日PCT公布。 第WO90 / 13738号公报 日期为1990年11月15日。引入了一种检查通气阀（TEV）和空转致动器的驾驶性能的方法。 在启动TEV之后，将额外的空气/燃料混合物供给到具有与发动机通常操作（λ0）或更大或小于λ的空气/燃料比相同的内燃机的进气区域 可以依赖于λ控制和/或空闲控制的反应。 有利的是，检查是独立于额外的空气/燃料混合物被燃料富集的程度。

公开(公告)号：US5205263A

公开(公告)日：1993-04-27

申请号：US865923

申请日：1992-04-09

申请人： Andreas Blumenstock ,  Helmut Denz ,  Werner Mezger ,  Ernst Wild

发明人： Andreas Blumenstock ,  Helmut Denz ,  Werner Mezger ,  Ernst Wild

IPC分类号： G01M3/26 ,  B60K15/035 ,  F02M25/08 ,  G01M15/04

CPC分类号： F02M25/0809 ,  B60K15/03504

摘要： The invention is directed to a method of checking a tank-venting apparatus for a motor vehicle equipped with a fuel tank and an internal combustion engine having an intake pipe. The apparatus includes an adsorption filter having a venting end and an intake end, a supply line connecting the intake end to the tank and a connecting line interconnecting the intake pipe of the engine and the intake end of the adsorption filter. A tank-venting valve is mounted in the connecting line between the intake pipe and the intake end of the adsorption filter and a drive unit for actuating the tank-venting valve. The method includes the steps of: changing the open state of the tank-venting valve when a pregiven operating state range of the engine is present; detecting the difference pressure between the pressure at the intake end of the adsorption filter and the ambient pressure; checking if the difference pressure or the end value of the difference pressure change lies in a predetermined range after the open state of the tank-venting valve is changed; and, issuing a fault announcement if neither the difference pressure, the time constant of the difference pressure change nor the end value of the difference pressure change lies in said predetermined range. The invention utilizes the realization that the difference pressure is based on the gas flow into and out of the adsorption filter. The difference pressure drops when the outflow is clogged or when there is a leak. On the other hand, the difference pressure increases when the inflow is clogged. In this way, the operability of the tank-venting apparatus can be checked in a simple manner.

摘要翻译： 本发明涉及一种检查装备有燃料箱的机动车辆的排气装置和具有进气管的内燃机的方法。 该装置包括具有通气端和进气端的吸附过滤器，将进气端连接到油箱的供给管线和将发动机的进气管与吸附过滤器的进气端相连的连接管线。 排气阀安装在进气管和吸附过滤器的进气端之间的连接管路中，以及用于致动排气阀的驱动单元。 该方法包括以下步骤：当存在发动机的预定运行状态范围时改变通气阀的打开状态; 检测吸附过滤器吸入端的压力与环境压力之间的差压; 检查在压力变化的打开状态发生变化之后，差压变化的差压或者结束值是否在规定的范围内， 以及如果差压，差压变化的时间常数和差压变化的结束值都不在所述预定范围内，则发出故障通知。 本发明利用差压是基于进入和离开吸附过滤器的气体流量的认识。 当流出物堵塞或泄漏时，差压力下降。 另一方面，当流入物堵塞时，差压增加。 以这种方式，可以以简单的方式检查罐排放装置的可操作性。

公开(公告)号：US5195498A

公开(公告)日：1993-03-23

申请号：US854424

申请日：1992-03-19

申请人： Johann Siebler ,  Stephan Pelters ,  Andreas Blumenstock ,  Helmut Denz ,  Axel-Rene Michelet ,  Siegfried Wesinger ,  Kurt Almstadt ,  Jens Druckhammer

发明人： Johann Siebler ,  Stephan Pelters ,  Andreas Blumenstock ,  Helmut Denz ,  Axel-Rene Michelet ,  Siegfried Wesinger ,  Kurt Almstadt ,  Jens Druckhammer

IPC分类号： B60K15/035 ,  F02M25/08

CPC分类号： B60K15/03504 ,  B60K15/035 ,  F02M25/0809

摘要： The invention is directed to a method of checking the tightness of a tank-venting apparatus for a motor vehicle having a fuel tank and an internal combustion engine including a lambda controller and an air intake pipe. The tank-venting apparatus includes an adsorption filter, a supply line interconnecting the adsorption filter and the fuel tank, a connecting line interconnecting the adsorption filter and the intake pipe and a tank-venting valve mounted in the connecting line between the adsorption filter and the intake pipe. The method includes the steps of: measuring the pressure difference between pressure in the tank and ambient pressure; when the tank-venting valve is opened, determining whether the pressure difference increases above a threshold value and whether a lean correction by the lambda controller is required; and, drawing the conclusion that the tank-venting apparatus leaks when neither a lean correction is determined nor the pressure difference exceeds the threshold value. The method is based on the recognition that, when the tank-venting valve is open, either an underpressure must build up in the tank or a lean correction must be determined by the lambda controller based on the fuel vaporizing in the tank. The method is very reliable by simultaneously carrying out these two checks.

摘要翻译： 本发明涉及一种检查具有燃料箱和包括λ控制器和进气管的内燃机的机动车辆的排气装置的密封性的方法。 排气装置包括吸附过滤器，将吸附过滤器和燃料箱相互连接的供给管线，连接吸附过滤器和进气管道的连接管路和安装在吸附过滤器和吸入过滤器之间的连接管路中的排气阀 进气管。 该方法包括以下步骤：测量罐内压力与环境压力之间的压力差; 当通气阀打开时，确定压力差是否增加到阈值以上，以及是否需要通过λ控制器的精益校正; 并且得出当没有确定倾斜校正或压差都超过阈值时，排气装置泄漏的结论。 该方法基于这样的认识，即当排气阀打开时，负压必须在罐中积聚，或者通过基于燃料在罐中蒸发的λ控制器来确定稀疏校正。 该方法通过同时进行这两个检查非常可靠。

公开(公告)号：US5054452A

公开(公告)日：1991-10-08

申请号：US548925

申请日：1990-07-30

申请人： Helmut Denz

发明人： Helmut Denz

IPC分类号： G01N27/409 ,  F02D41/14 ,  F02D45/00 ,  G01N27/26 ,  G01N27/406 ,  G01N27/417

CPC分类号： F02D41/1495 ,  F02D41/1494 ,  G01N27/4065 ,  G01N27/4175

摘要： In a heatable lambda probe, the probe voltage is first measured with the heater switched off and then with the heater switched on. The difference between the two voltages is formed and, when it exceeds a predetermined threshold difference, a shunt signal is output which indicates that the probe is not yet ready for operation. Otherwise, the system is examined for readiness for closed-loop control in the conventional manner.

摘要翻译： PCT No.PCT / DE89 / 00727 Sec。 371日期1990年7月30日 102（e）日1990年7月30日PCT 1989年11月21日PCT PCT。 公开号WO90 / 06431 日期1990年6月14日。在可加热的λ探针中，首先在加热器关闭然后加热器打开的情况下测量探头电压。 形成两个电压之间的差异，并且当其超过预定阈值差时，输出指示探针尚未准备好进行操作的并联信号。 否则，以常规方式检查系统是否准备闭环控制。

公开(公告)号：US5022374A

公开(公告)日：1991-06-11

申请号：US551410

申请日：1990-07-12

申请人： Helmut Denz ,  Klemens Grieser ,  Jurgen Stock ,  Rudolf Moz ,  Winifred Uttenweiler

发明人： Helmut Denz ,  Klemens Grieser ,  Jurgen Stock ,  Rudolf Moz ,  Winifred Uttenweiler

IPC分类号： F02D41/06 ,  F02D41/34 ,  F02D41/36

CPC分类号： F02D41/062

摘要： The invention is directed to a sequential fuel injection method wherein the first injection end time point is determined at which the preinjections end. In addition, the first intake end time point is determined at which a signal occurs for the first time after the start of the method which is evaluated as a signal that indicates the end of an induction operation. Furthermore, a determination is made for which cylinder the above-mentioned time point applies. If the first-mentioned time point lies ahead of the second-mentioned time point, the sequential fuel injection is started for the determined cylinder. For the opposite position of the mentioned time points, the injection valve for that particular cylinder is driven whose induction cycle follows the determined cylinder with the injection valve being so driven that the entire fuel quantity is injected which was computed for the sequential injection. The method of the invention assures that an internal combustion engine receives a proper injection as soon as possible after the start thereof without an overenrichment of the mixture for the individual cylinders.

摘要翻译： 本发明涉及一种顺序燃料喷射方法，其中确定第一喷射结束时间点，其中预喷射结束。 此外，确定在作为指示感应操作结束的信号被评估的方法开始之后第一次发生信号的第一进入结束时间点。 此外，确定适用上述时间点的哪个气缸。 如果首先提到的时间点位于第二个提到的时间点之前，则针对所确定的气缸开始顺序燃料喷射。 对于所述时间点的相对位置，驱动该特定气缸的喷射阀，其感应循环跟随确定的气缸，其中喷射阀被驱动，使得为连续喷射计算的整个燃料量被喷射。 本发明的方法确保内燃机在起动之后尽可能快地接收适当的喷射，而不会使各个气缸的混合物渗透。

公开(公告)号：US4941446A

公开(公告)日：1990-07-17

申请号：US347943

申请日：1989-04-05

申请人： Helmut Denz ,  Rudolf Moz ,  Winfried Uttenweiler

发明人： Helmut Denz ,  Rudolf Moz ,  Winfried Uttenweiler

IPC分类号： F02D35/00 ,  F02D41/34 ,  F02D45/00 ,  F02P3/045 ,  F02P5/15 ,  F02P7/06 ,  F02P7/07 ,  F02P7/073 ,  F02P15/00

CPC分类号： F02D41/009 ,  F02P15/008 ,  F02P3/0456 ,  F02P7/07

摘要： An ignition and injection system for internal combustion engines is suggested in which a phase sensor which includes a sensor drum driven synchronously with the ignition distributor, particularly a Hall sensor drum formed with a plurality of cut-out portions, one of which is wider than the cut-out portions, and indicates the beginning of an ignition or injection cycle in emergency running. The cut-out portions produce correspondingly long timing pulses, at the beginning of which the ignition coil is charged until the trailing edge occurs and the ignition is effected. The trailing edge of the timing pulses can occur e.g. 10.degree. before the top dead center of the respective cylinder.

摘要翻译： PCT No.PCT / DE87 / 00398 Sec。 371日期：1989年4月5日 102（e）日期1989年4月5日PCT提交1987年9月2日PCT公布。 出版物WO88 / 02817 日本公开日1988年4月21日。提出了一种用于内燃机的点火和注射系统，其中包括与点火分配器同步驱动的传感器鼓的相位传感器，特别是形成有多个切口部分的霍尔传感器鼓， 其中一个比切口部分宽，并且表示紧急行驶中点火或注射循环的开始。 切口部分产生相应长的定时脉冲，在其开始时，点火线圈被充电直到发生后缘并且点火。 定时脉冲的后沿可以例如发生。 相应气缸上死点前10°。

公开(公告)号：US4856465A

公开(公告)日：1989-08-15

申请号：US555949

申请日：1983-11-29

申请人： Helmut Denz ,  Martin Person

发明人： Helmut Denz ,  Martin Person

IPC分类号： F01L1/34 ,  F01L1/344 ,  F02B1/04 ,  F02D13/02

CPC分类号： F02D13/0261 ,  F01L1/34406 ,  F02B1/04 ,  Y02T10/18

摘要： The oil pressure applied to a hydraulic device for controlling within a limited angular range of a cam shaft and its drive gear is controlled by a magnetic valve (35) which is switched between its open and closed position under control of the same microcomputer which controls engine ignition and/or fuel injection with reference to a predetermined function of some of the same engine operation parameters, namely engine speed and engine load, which are used to control ignition and/or fuel injection. The control function can advantageously also take account of rate of change of engine load or engine speed. A transducer (43) for reporting back the sleeve (22) which controls the mechanical rotary shift in response to oil pressure can be used to provide an actual value signal to the computer for generation of an error signal for controlling the magnetic valve so as to provide a continuous control of the overlap of the open periods of the intake and exhaust valves of the engine. The control function for the operation of the magnetic valve provides for hysteresis to prevent excessive switching back and forth.

摘要翻译： 施加到用于在凸轮轴及其驱动齿轮的有限角度范围内控制的液压装置的油压由电动阀（35）控制，该电磁阀（35）在控制发动机的相同微型计算机的控制下在其打开和关闭位置之间切换 点火和/或燃料喷射，其参考用于控制点火和/或燃料喷射的一些相同的发动机操作参数，即发动机转速和发动机负荷的预定功能。 控制功能还可以有利地考虑发动机负荷或发动机转速的变化率。 用于报告响应于油压控制机械旋转移位的套筒（22）的换能器（43）可以用于向计算机提供实际值信号以产生用于控制电磁阀的误差信号，从而 提供对发动机的进气门和排气门的打开周期的重叠的连续控制。 电磁阀操作的控制功能提供滞后功能，防止过大的切换。

公开(公告)号：US4794790A

公开(公告)日：1989-01-03

申请号：US74897

申请日：1987-07-17

申请人： Florin Margarit-Metaxa ,  Helmut Denz

发明人： Florin Margarit-Metaxa ,  Helmut Denz

IPC分类号： G01M15/04 ,  F02D35/00 ,  F02D41/22 ,  G01M19/00

CPC分类号： F02D35/0007 ,  F02D41/22 ,  Y02T10/40

摘要： A diagnostic method and arrangement quantitatively checks actuators during the open-loop and/or closed-loop control of operational parameters of an internal combustion engine. The method and arrangement checks the idle actuator and the tank venting value well as the associated hardward chains, that increased or decreased quantities of air (.+-..DELTA.Q.sub.TEV/LLR) be supplied via an appropriate controlling to the tank-venting valve or of the idle regulator, preferbly simultaneously and in opposite directions and that the resulting possible changes of rotational speed (rotational speed remains constant; rotational speed decreases; rotational speed increases) be determined and appropriately evaluated.

摘要翻译： 诊断方法和装置在内燃机的运行参数的开环和/或闭环控制期间定量地检查致动器。 该方法和装置检查空转致动器和罐排放值以及相关联的硬链，通过适当的控制向空气排放阀提供或减少空气量（+/- DELTA QTEV / LLR） 怠速调节器，优选同时地和相反方向，并且确定并适当地评估所得到的转速（转速保持恒定，转速降低;转速增加）的可能变化。

公开(公告)号：US4601199A

公开(公告)日：1986-07-22

申请号：US754514

申请日：1985-07-11

申请人： Helmut Denz

发明人： Helmut Denz

IPC分类号： F02D45/00 ,  F02D41/22 ,  G01M15/00 ,  G01M15/04 ,  G05B23/02

CPC分类号： F02D41/18 ,  F02D31/005 ,  F02D41/221 ,  F02D2200/0406 ,  Y02T10/40

摘要： A method of and a device for a self-diagnosis of setting members in complex controlling and regulating systems, particularly for the self-diagnosis of an idling speed air charge adjustor of an internal combustion engine, includes the following functional stages: the self-diagnosis is performed at certain operational conditions at which a regulating path governed by a regulating subsystem pertaining to the setting member does not react to a change of the latter and the operation of a motor vehicle thus remains unaffected; the comparing of plausibility of the control signals for the setting member with a second control signal from another regulating subsystem is performed by comparing both control signals with a known, previously determined relation, which is stored in a memory.

摘要翻译： 在复杂的控制和调节系统中，特别是用于内燃机空转速度空气调节器的自我诊断的自诊断方法和设备包括以下功能阶段：自诊断 在由调节子系统控制的调节路径与设定构件相关联的调节路径不响应于后者的变化的某些操作条件下执行，并且机动车辆的操作因此不受影响; 通过将存储在存储器中的已知的先前确定的关系的两个控制信号进行比较来执行设定构件的控制信号与来自另一调节子系统的第二控制信号的合理性的比较。