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：US4174682A

公开(公告)日：1979-11-20

申请号：US842998

申请日：1977-10-17

申请人： Ulrich Drews ,  Erich Singer

发明人： Ulrich Drews ,  Erich Singer

IPC分类号： F02D41/34 ,  F02D41/14 ,  F02D41/18 ,  F02D3/00 ,  F02M7/00

CPC分类号： F02D41/149 ,  F02D41/1491 ,  F02D41/182

摘要： An electronic circuit is described for use with an existing fuel injection system in which fuel control pulses are generated on the basis of air flow rate, engine speed and exhaust gas composition. In particular, the existing fuel injection system is assumed to include an exhaust gas sensor with a signal integrator and a throttle position switch which indicates a closed throttle. It is also assumed that the fuel injection system shuts off fuel control pulses when the throttle is closed and engine speed drops below a predetermined value. The present circuit is intended to recognize this fuel shutoff and to set the integrator at an average value irrespective of the "too lean" signal which it receives from the exhaust gas sensor. In this way, upon termination of fuel shutoff, the engine will receive an average mixture rather than a highly enriched one.

摘要翻译： 描述了与现有的燃料喷射系统一起使用的电子电路，其中基于空气流量，发动机转速和废气组成产生燃料控制脉冲。 特别地，现有的燃料喷射系统被认为包括具有信号积分器的废气传感器和指示闭合节流阀的节气门位置开关。 还假设当节气门关闭并且发动机速度下降到预定值以下时，燃料喷射系统关闭燃料控制脉冲。 本电路旨在识别该燃料切断并将积分器设置在平均值，而与从废气传感器接收的“太瘦”信号无关。 以这种方式，在燃料关闭终止时，发动机将接收平均混合物，而不是高度富集的混合物。

公开(公告)号：US4501247A

公开(公告)日：1985-02-26

申请号：US415047

申请日：1982-09-07

申请人： Hermann Gassler ,  Eugen Joos ,  Hans Kubach ,  Wolfgang Maisch ,  Erich Singer

发明人： Hermann Gassler ,  Eugen Joos ,  Hans Kubach ,  Wolfgang Maisch ,  Erich Singer

IPC分类号： F02D41/04 ,  F02D41/02 ,  F02D41/06 ,  F02D41/10 ,  F02M39/00

CPC分类号： F02D41/06 ,  F02D41/064 ,  F02D41/10

摘要： It is proposed for a fuel metering system that a final control element be triggered with a regulated direct-current signal having clock components dependent on operating characteristics of an internal combustion engine in order to influence a fuel metering means. A further proposal is that the acceleration enrichment be triggered during starting. In this manner the desired starting enrichment is obtained by way of the sum of the post-starting, warm-up and acceleration enrichment. The acceleration enrichment per se begins beyond a predetermined air flow gradient and then has a steady course up to a maximum value. This subject is disclosed in combination with a continuously operating injection system, in which a corresponding overall control signal is prepared in a control unit and delivered to an electrohydraulic final control element. This final control element, in the specialized example, influences the working pressure of the differential pressure valves associated directly with the continuously functioning injection valves.

摘要翻译： 提出了一种燃料计量系统，其最终控制元件由具有取决于内燃机的操作特性的时钟分量的调节的直流信号触发以影响燃料计量装置。 另一个建议是启动过程中触发加速浓缩。 以这种方式，通过后启动，预热和加速富集的总和获得所需的起始浓缩。 加速浓缩本身开始超过预定的气流梯度，然后具有稳定的过程直到最大值。 本实施例结合连续操作的喷射系统公开，其中相应的总体控制信号在控制单元中准备并被输送到电液最终控制元件。 在该专门的例子中，该最终控制元件影响与连续功能的喷射阀直接相关的差压阀的工作压力。

公开(公告)号：US4491113A

公开(公告)日：1985-01-01

申请号：US415952

申请日：1982-09-08

申请人： Hermann Gassler ,  Eugen Joos ,  Werner Jundt ,  Hans Kubach ,  Erich Singer

发明人： Hermann Gassler ,  Eugen Joos ,  Werner Jundt ,  Hans Kubach ,  Erich Singer

IPC分类号： F02D41/20 ,  G05F1/56 ,  F02D5/00

CPC分类号： G05F1/56 ,  F02D41/20 ,  F02D2041/2017 ,  F02D2041/2058

摘要： A current regulator is proposed for use in an electronically controlled, continuously operating gasoline injection system, with the aid of which a control element can be supplied with different current values depending upon the operating states of the engine. In addition to a current regulating phase during active operation, it is possible with the proposed current regulator to reverse the direction of current flow in the control element for the sake of blocking the supply of fuel during overrunning. Towards this end a circuit apparatus links signals relating to rpm, throttle valve position and temperature. Furthermore two safety circuit arrangements are proposed for the current regulator, so that in case of a failure of important components there is no impairment of safety, and emergency operation is assured.

摘要翻译： 提出了一种用于电子控制的连续运行的汽油喷射系统中的电流调节器，借助于此可以根据发动机的操作状态向控制元件提供不同的电流值。 除了在主动操作期间的电流调节阶段之外，为了阻止超越期间的燃料供应，所提出的电流调节器可以改变控制元件中的电流方向。 为此，电路设备链接与转速，节气门位置和温度有关的信号。 此外，为电流调节器提出了两个安全电路装置，使得在重要部件发生故障的情况下，没有安全的损害，并且确保了紧急操作。