公开(公告)号：US4058106A

公开(公告)日：1977-11-15

申请号：US679379

申请日：1976-04-22

申请人： Ulrich Drews ,  Bernd Kraus ,  Erich Singer ,  Hans Schnurle

发明人： Ulrich Drews ,  Bernd Kraus ,  Erich Singer ,  Hans Schnurle

IPC分类号： F02D41/22 ,  F02D41/02 ,  F02D41/14 ,  F02M17/38 ,  F02B3/00 ,  F02B77/00

CPC分类号： F02D41/0205

摘要： The maximum speed of an internal combustion engine is limited by a device which compares the period of rpm-synchronous pulses with the time constant of a reference multivibrator. If the engine rpm is so high that a pulse terminates prior to expiration of the reference time period, a gate is activated and acts through further multivibrator circuits to interrupt the fuel delivery to the engine, e.g., the fuel injection control pulses are suppressed. If the maximum rpm is exceeded only intermittently, the device restores normal fuel injection control pulses after a predetermined number of pulses has been suppressed. If the maximum rpm is exceeded continuously, the device restores normal fuel control somewhat later than the time at which the engine speed drops to below maximum rpm.

摘要翻译： 内燃机的最大速度由比较转速同步脉冲的周期与参考多谐振荡器的时间常数的装置来限制。 如果发动机转速如此高以致在基准时间段期满之前脉冲终止，则门被激活并通过进一步的多谐振荡器电路作用，以中断向发动机的燃料输送，例如燃料喷射控制脉冲被抑制。 如果仅间歇地超过最大转速，则在预定数量的脉冲被抑制之后，装置恢复正常的燃料喷射控制脉冲。 如果连续超过最大转速，设备会比发动机转速下降到最大转速以下的时间稍晚恢复正常的燃油控制。

公开(公告)号：US4244340A

公开(公告)日：1981-01-13

申请号：US895683

申请日：1978-04-12

申请人： Harro Herth ,  Hans Schnurle ,  Ulrich Drews ,  Erich Singer ,  Bernd Kraus ,  Peter Werner

发明人： Harro Herth ,  Hans Schnurle ,  Ulrich Drews ,  Erich Singer ,  Bernd Kraus ,  Peter Werner

IPC分类号： F02D41/34 ,  F02D35/00 ,  F02D41/06 ,  F02D41/14 ,  F02M35/00 ,  F02D5/00 ,  F02M7/00

CPC分类号： F02D41/1476 ,  Y02T10/142

摘要： A control circuit of a fuel management control system for internal combustion engines monitors the operation of an exhaust line sensor. When the oxygen sensor is perceived to be inoperative, for example, due to low ambient temperature, the previously closed loop control process governing the fuel management control signals is interrupted and a direct forward control process is substituted therefor. The reference voltage is changed during this time for eventual adaptation to the changeover to closed loop feedback control after the oxygen sensor again becomes operational.

摘要翻译： 用于内燃机的燃料管理控制系统的控制电路监视排气管线传感器的操作。 当氧气传感器被认为不起作用时，例如由于环境温度低，控制燃料管理控制信号的先前闭环控制过程被中断，并且替换了直接正向控制过程。 在此期间，参考电压发生变化，以便在氧传感器再次运行后最终适应于转换到闭环反馈控制。

公开(公告)号：US4140086A

公开(公告)日：1979-02-20

申请号：US826627

申请日：1977-08-22

申请人： Hans Schnurle ,  Ulrich Drews ,  Erich Singer

发明人： Hans Schnurle ,  Ulrich Drews ,  Erich Singer

IPC分类号： F02D41/14 ,  F02M7/00

CPC分类号： F02D41/1481 ,  Y02T10/142

摘要： An apparatus for use in association with a fuel mixture preparation system for an internal combustion engine in which the output signal from an oxygen sensor located in the exhaust system is used to provide closed-loop control of the mixture ratio supplied by the mixture preparation system. The apparatus includes a principal comparator in which the sensor signal is compared with a reference value and a subsequent integrator which supplies correcting signals to the mixture controller. A special circuit between the principal comparator and the integrator can delay the signal transmission between these two elements in one direction of change, thereby causing an effective shift of the point of operation of the control loop to a different point in the sensor output curve, to compensate for aging, etc. The feedback branch of the integrator includes circuitry which effectively provides two different constants of integration to enhance smooth running at low engine speeds and to improve the control response at high engine speeds. The invention may be used with any kind of mixture preparation system, e.g., carburetors, intermittent injection systems and continuously acting injection systems.

摘要翻译： 一种与用于内燃机的燃料混合物制备系统相关联的装置，其中使用来自位于排气系统中的氧传感器的输出信号来提供由混合物制备系统提供的混合比的闭环控制。 该装置包括主传感器信号与参考值进行比较的主比较器和向混合控制器提供校正信号的后续积分器。 主比较器和积分器之间的特殊电路可以在一个改变方向上延迟这两个元件之间的信号传输，从而将控制回路的操作点有效地移动到传感器输出曲线中的不同点，到 补偿老化等。积分器的反馈分支包括有效提供两个不同常数的集成电路，以增强低发动机转速下的平稳运行并改善高发动机转速时的控制响应。 本发明可以与任何种类的混合物制备系统一起使用，例如化油器，间歇喷射系统和连续作用喷射系统。

公开(公告)号：US4240383A

公开(公告)日：1980-12-23

申请号：US23508

申请日：1979-03-23

申请人： Michael Horbelt ,  Hans Schnurle ,  Ulrich Drews ,  Richard Bertsch

发明人： Michael Horbelt ,  Hans Schnurle ,  Ulrich Drews ,  Richard Bertsch

IPC分类号： F02D41/34 ,  F02D41/10 ,  F02D5/02

CPC分类号： F02D41/10

摘要： A device for metering fuel in an internal combustion engine which comprises sensors for operating parameters, an acceleration detecting stage with a subsequently connected pulse generating stage as well as a pulse lengthening stage, and a fuel metering system wherein the acceleration detecting stage is indirectly and/or directly associated with at least one of a plurality of components including an oscillation stopper (to prevent renewed triggering in case of an oscillation-carrying input signal), a blocking stage (for unequivocal and secure triggering), a repetition stopper (to avoid multiple triggering during gradual and longer-term signal rises), and a switching suppressor (to prevent a voltage rise after a switching step from being evaluated as an instance of acceleration) so that the device serves to operate the acceleration enrichment of the fuel-air mixture for the internal combustion engine with a minimum of disturbance thereby attaining optimum acceleration processes.

摘要翻译： 一种用于计量内燃机中的燃料的装置，包括用于操作参数的传感器，具有随后连接的脉冲发生级的加速度检测级以及脉冲延长级，以及燃料计量系统，其中所述加速度检测级间接地和/ 或直接与包括振荡停止器的多个部件中的至少一个相关联（以防在携带振荡的输入信号的情况下防止更新触发），阻塞阶段（用于明确和安全的触发），重复停止器（以避免多个 在逐渐和长期的信号上升期间触发）和开关抑制器（以防止在切换步骤之后的电压升高被评估为加速度），使得该装置用于操作燃料 - 空气混合物的加速浓缩 对于具有最小干扰的内燃机，从而获得最佳的加速过程。

公开(公告)号：US4320732A

公开(公告)日：1982-03-23

申请号：US26159

申请日：1979-04-02

申请人： Hans Schnurle ,  Ulrich Drews ,  Peter Werner

发明人： Hans Schnurle ,  Ulrich Drews ,  Peter Werner

IPC分类号： F02D41/34 ,  F02D41/04 ,  F02D41/32 ,  F02M51/02

CPC分类号： F02D41/32

摘要： A method and an apparatus for generating fuel metering control pulse which may be used to control the operation of injection systems, carburetors, or any other controllable fuel metering mechanism. The system includes two signal generators one of which continually generates a signal related to engine conditions while the other is engaged in deriving therefrom a fuel metering control pulse of appropriate length. The duration of the pulses may be obtained by the charging and discharging constant of control capacitors or by a process of numerical countdown of digital data.

摘要翻译： 一种用于产生燃料计量控制脉冲的方法和装置，其可用于控制喷射系统，化油器或任何其它可控燃料计量机构的操作。 该系统包括两个信号发生器，其中一个信号发生器连续地产生与发动机状况相关的信号，而另一个信号发生器从其中导出适当长度的燃料计量控制脉冲。 脉冲的持续时间可以通过控制电容器的充电和放电常数或数字数据的数字倒数的过程来获得。

公开(公告)号：US4239022A

公开(公告)日：1980-12-16

申请号：US901674

申请日：1978-05-01

申请人： Ulrich Drews ,  Michael Horbelt ,  Hans Schnurle ,  Peter Werner ,  Otto Glockler ,  Dieter Gunther ,  Richard Bertsch

发明人： Ulrich Drews ,  Michael Horbelt ,  Hans Schnurle ,  Peter Werner ,  Otto Glockler ,  Dieter Gunther ,  Richard Bertsch

IPC分类号： F02D41/34 ,  F02D41/06 ,  F02B3/00

CPC分类号： F02D41/061

摘要： The cyclic control pulses for actuating the fuel injection valves of an internal combustion engine are extended during engine starting at low temperatures. The degree of pulse extension, i.e. of fuel enrichment, is made dependent on engine temperature and decreases as a function of cranking time. In addition, a repeated starting attempt will be accompanied by reduced pulse extension to prevent excessive enrichment of the mixture. The pulse extension may also be retained for a period of time after engine cranking to insure smooth running.

摘要翻译： 用于致动内燃机的燃料喷射阀的循环控制脉冲在发动机起动低温时延长。 脉冲延伸的程度，即燃料浓缩的程度取决于发动机温度，并且随起动时间的变化而减小。 此外，重复的启动尝试将伴随着减小的脉冲延长以防止混合物的过度富集。 在发动机起动之后，脉冲延伸部分也可以保持一段时间，以确保平稳运行。

公开(公告)号：US4254742A

公开(公告)日：1981-03-10

申请号：US882517

申请日：1978-03-01

申请人： Hans Schnurle ,  Ulrich Drews ,  Peter Werner ,  Lothar Winkelmann

发明人： Hans Schnurle ,  Ulrich Drews ,  Peter Werner ,  Lothar Winkelmann

IPC分类号： F02D41/34 ,  F02D41/04 ,  F02D41/18 ,  F02B3/00

CPC分类号： F02D41/182

摘要： A fuel injection control system generates control pulses which open the fuel injection valves of the engine. The pulse duration is proportional to the injected fuel quantity and can be altered in dependence on air temperature by a circuit which includes a temperature-sensitive resistor. The voltage at this resistor controls a transistor which supplies a supplementary charging current for a timing capacitor.

摘要翻译： 燃料喷射控制系统产生打开发动机的燃料喷射阀的控制脉冲。 脉冲持续时间与注入的燃料量成比例，并且可以通过包括温度敏感电阻器的电路根据空气温度而改变。 该电阻器上的电压控制一个为定时电容器提供辅助充电电流的晶体管。

公开(公告)号：US4205635A

公开(公告)日：1980-06-03

申请号：US780744

申请日：1977-03-24

申请人： Dieter Kirn ,  Ulrich Steinbrenner ,  Hans Schnurle ,  Peter Werner ,  Ulrich Drews ,  Klaus Streit ,  Erwin Gloss ,  Helmut Moder

发明人： Dieter Kirn ,  Ulrich Steinbrenner ,  Hans Schnurle ,  Peter Werner ,  Ulrich Drews ,  Klaus Streit ,  Erwin Gloss ,  Helmut Moder

IPC分类号： F02D41/34 ,  F02D41/06 ,  F02D1/04

CPC分类号： F02D41/068

摘要： A fuel mixture control apparatus for an electronic fuel injection system for internal combustion engines. In a warm-up controller, the fuel injection control pulses are lengthened for enrichment of the fuel-air mixture during engine warm-up on the basis of signals supplied by a temperature transducer. In order to make the warm-up enrichment dependent on prevailing engine states, for example on the conditions of idling and partial or full load, circuitry is provided to sense these conditions and to suitably alter the enrichment factor. A further circuit suppresses the dependence or enrichment on engine status during engine starting. Various embodiments are presented.

摘要翻译： 一种用于内燃机的电子燃料喷射系统的燃料混合物控制装置。 在预热控制器中，基于由温度传感器提供的信号，燃料喷射控制脉冲被延长以便在发动机预热期间富集燃料 - 空气混合物。 为了使预热浓缩取决于当前的发动机状态，例如在空转和部分或全负载的条件下，提供电路以感测这些条件并适当地改变浓缩因子。 进一步的电路抑制发动机启动时对发动机状态的依赖或浓缩。 呈现各种实施例。

公开(公告)号：US4357922A

公开(公告)日：1982-11-09

申请号：US180239

申请日：1980-08-22

申请人： Gunter Rosenzopf ,  Hans Schnurle ,  Wolfgang Rebmann ,  Ulrich Drews

发明人： Gunter Rosenzopf ,  Hans Schnurle ,  Wolfgang Rebmann ,  Ulrich Drews

IPC分类号： F02D35/00 ,  F02D35/02 ,  F02D41/06 ,  F02D41/14 ,  F02M51/02

CPC分类号： F02D41/1487 ,  F02D41/06

摘要： A method for operating a fuel-supply system using a lambda-control apparatus for an internal-combustion engine wherein the amount of fuel to be supplied to the internal combustion engine is a function of signals representing the speed (RPM), the engine load, the exhaust-composition, and the temperature of the exhaust-gas sensor together with the attainment of a given temperature of the engine as an additional control criteria for the lambda-control apparatus. The method further includes deriving a temperature signal from the internal combustion engine to operate a threshold element with a hystereses whose switching values lie at about 10.degree. C. and 50.degree. C. to 85.degree. C. for optimum fuel mixture in the combustion chamber. The output signal of the threshold element can be further utilized for a supplementary warm-up fuel enrichment for better ignition characteristics, engine smoothness, and exhaust gas composition. The apparatus according to the invention has transducers for sensing speed, load, exhaust gas composition and temperature together with a threshold element and a logic element for signals from a sensor in the internal combustion engine so that the lambda-control apparatus can be regulated as a function of the output signal from said logic element.

摘要翻译： 一种使用用于内燃机的λ控制装置来操作燃料供应系统的方法，其中供给内燃机的燃料量是表示速度（RPM），发动机负荷， 排气组成以及废气传感器的温度以及达到发动机的给定温度作为λ控制装置的附加控制标准。 该方法还包括从内燃机获得温度信号以操作具有切换值在大约10℃和50℃至85℃的半轴的阈值元件，以在燃烧室中实现最佳的燃料混合。 阈值元件的输出信号可以进一步用于补充预热燃料浓缩，以获得更好的点火特性，发动机平稳度和废气组成。 根据本发明的装置具有用于感测速度，负载，排气组成和温度的换能器以及用于来自内燃机中的传感器的信号的阈值元件和逻辑元件，使得λ控制装置可以被调节为 来自所述逻辑元件的输出信号的功能。

公开(公告)号：US4335696A

公开(公告)日：1982-06-22

申请号：US165920

申请日：1980-07-03

申请人： Hans Schnurle ,  Michael Horbelt ,  Ulrich Drews ,  Peter Werner ,  Otto Glockler ,  Dieter Gunther ,  Richard Bertsch

发明人： Hans Schnurle ,  Michael Horbelt ,  Ulrich Drews ,  Peter Werner ,  Otto Glockler ,  Dieter Gunther ,  Richard Bertsch

IPC分类号： F02D41/34 ,  F02D41/10 ,  F02D41/18 ,  F02M51/02

CPC分类号： F02D41/10 ,  F02D41/182 ,  Y02T10/142

摘要： There is described a method and an apparatus for use with the fuel preparation system of an internal combustion engine, for example, a fuel injection system which operates injection valves with electrical control pulses. When the gas pedal of a vehicle is actuated abruptly, the air flow measuring device of such systems is subject to oscillations around its equilibrium point, and the initial one of these swings is used to cause enrichment of the fuel-air mixture. The return swing generates an undesired lean signal which is suppressed by a "damping circuit". In addition, there is provided mixture enriching during steady applications of the gas pedal by means of a time-decaying enrichment signal generated by a slow acting circuit which operates in superposition to the action of the damping circuit. Both circuits may be suppressed by a blocking circuit during certain engine conditions, for example, during engine starting and engine overrunning as well as on the basis of temperature.

摘要翻译： 描述了用于内燃机的燃料制备系统的方法和装置，例如，具有电控制脉冲操作喷射阀的燃料喷射系统。 当车辆的油门踏板突然动作时，这种系统的空气流量测量装置在其平衡点周围发生振荡，并且这些摆动中的最初的一个用于引起燃料 - 空气混合物的浓缩。 返回摆动产生由“阻尼电路”抑制的不希望的倾斜信号。 此外，通过由缓慢作用的电路产生的时间衰减浓缩信号，在油门踏板的稳定应用期间提供混合物富集，该缓慢作用电路与阻尼电路的作用叠加。 在某些发动机条件下，例如在发动机起动和发动机超速以及基于温度的情况下，两个回路可能被阻塞电路所抑制。