Temperature responsive open/closed loop switching for lambda control
    1.
    发明授权
    Temperature responsive open/closed loop switching for lambda control 失效
    用于λ控制的温度响应开/闭环切换

    公开(公告)号:US4392470A

    公开(公告)日:1983-07-12

    申请号:US276757

    申请日:1981-06-24

    IPC分类号: F02D41/14 F02B33/00

    CPC分类号: F02D41/1488

    摘要: A regulating device is described for regulating or adjusting the composition of the operating mixture of an internal combustion engine. When the engine or exhaust gas probe is still cold, the composition of the fuel-air mixture is controlled in an open-loop manner, and upon the attainment of a minimum operating temperature, the closed-loop regulating device for influencing the fuel-air mixture is activated. The activation of the regulating device is effected, when the engine is being operated under a load, after the attainment of a first, low temperature value; during engine idling, this is effected after the attainment of a second, higher temperature value. Via the throttle valve, a switchover is effected between two threshold values of a threshold switch.

    摘要翻译: 描述了用于调节或调节内燃机的操作混合物的组成的调节装置。 当发动机或排气探头仍然冷时,燃料 - 空气混合物的组成以开环的方式被控制,并且在达到最低工作温度时,用于影响燃料空气的闭环调节装置 混合物被激活。 当达到第一低温值时,在发动机在负载下操作时实现调节装置的启动; 在发动机怠速期间,这是在达到第二个更高的温度值之后进行的。 通过节流阀,在阈值开关的两个阈值之间进行切换。

    Fuel metering system for an internal combustion engine
    3.
    发明授权
    Fuel metering system for an internal combustion engine 失效
    内燃机燃油计量系统

    公开(公告)号:US4428345A

    公开(公告)日:1984-01-31

    申请号:US378948

    申请日:1982-05-17

    IPC分类号: F02D41/14 F02M7/00 F02M51/00

    CPC分类号: F02D41/1481

    摘要: A fuel metering system having a .lambda. regulation device in which the delay periods known per se from the prior art are variable upon the switchover of the integration direction of an integrator included in the .lambda. regulation system. This variation produces a shortening of the delay period, as a result of which it is possible to prevent an excessive enrichment of the mixture. The invention relates to a controllable reduction of the individual delay signal as well as a control of the total duration of control exerted on the delay signals as they appear. The invention is independent of whether it is realized by either analog or digital circuit technology.

    摘要翻译: 一种具有λ调节装置的燃料计量系统,其中现有技术本身已知的延迟周期在包括在λ调节系统中的积分器的积分方向的切换时是可变的。 这种变化导致延迟时间的缩短,结果可以防止混合物的过度富集。 本发明涉及各个延迟信号的可控减小以及当它们出现时施加在延迟信号上的总控制持续时间的控制。 本发明与是否通过模拟或数字电路技术实现无关。

    Method and apparatus for performing fuel mixture enrichment
    4.
    发明授权
    Method and apparatus for performing fuel mixture enrichment 失效
    用于进行燃料混合物浓缩的方法和装置

    公开(公告)号:US4335696A

    公开(公告)日:1982-06-22

    申请号:US165920

    申请日:1980-07-03

    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。

    Fuel metering device for an internal combustion engine
    5.
    发明授权
    Fuel metering device for an internal combustion engine 失效
    内燃机燃油计量装置

    公开(公告)号:US4240383A

    公开(公告)日:1980-12-23

    申请号:US23508

    申请日:1979-03-23

    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。

    Method of and device for lambda-regulation of fuel mixture for an
internal combustion engine
    6.
    发明授权
    Method of and device for lambda-regulation of fuel mixture for an internal combustion engine 失效
    用于内燃机燃料混合物的λ调节方法和装置

    公开(公告)号:US4603670A

    公开(公告)日:1986-08-05

    申请号:US627742

    申请日:1984-07-05

    IPC分类号: F02D41/14

    CPC分类号: F02D41/1474 F02D41/1456

    摘要: A method of and a device for regulating air-fuel ratio of an internal combustion engine includes an oxygen or lambda probe and a signal processing unit connected to the lambda probe. The change-overs of the lambda signal at the output of the lambda probe are compared with a succession of adjustable first time intervals t.sub.1 and, when no change-over is detected during the first time interval, the output signal from the signal processing unit which controls the air-fuel ratio is abruptly changed in a jump. To avoid overshoot of the output control signal, there is provided a resetting unit by means of which the jump of the control signal is reversed when the change-over of the lambda signal occurs in an additional monitoring time interval t.sub.2 following the first monitoring time interval t.sub.1.

    摘要翻译: 用于调节内燃机的空燃比的方法和装置包括氧或λ探针和连接到λ探针的信号处理单元。 将λ探测器的输出处的λ信号的转换与可调整的第一时间间隔t1进行比较,并且当在第一时间间隔期间没有检测到转换时,来自信号处理单元的输出信号 控制空燃比在跳跃中突然改变。 为了避免输出控制信号的过冲,提供了一个复位单元,当在第一监视时间间隔之后的附加监视时间间隔t2中发生λ信号的转换时,控制信号的跳转被反转 t1。

    Method for operating an apparatus for a fuel control system of an
internal combustion engine during overrunning
    7.
    发明授权
    Method for operating an apparatus for a fuel control system of an internal combustion engine during overrunning 失效
    用于在超越期间操作内燃机的燃料控制系统的装置的方法

    公开(公告)号:US4549519A

    公开(公告)日:1985-10-29

    申请号:US410669

    申请日:1982-08-23

    IPC分类号: F02B1/04 F02D41/12 F02D5/02

    CPC分类号: F02D41/123 F02B1/04

    摘要: A method and an apparatus for overrunning control in an internal combustion engine are proposed, which operate with an overrunning cutoff and the reestablishment rpm of which is dependent on rpm and on time. At the onset of overrunning, a higher reestablishment rpm is selected, and once the rpm falls below a predetermined rpm value the reestablishment rpm is reduced according to a time function to a lower threshold value. The method may be realized by a controlled system, as well as by a control apparatus operating with analog circuitry.

    摘要翻译: 提出了一种用于内燃机超越控制的方法和装置,其操作具有超越截止值,其重建转速依赖于转速和时间。 在超速开始时,选择更高的重建转速,并且一旦rpm下降到预定的rpm值以下,则根据时间函数将重建速度降低到较低的阈值。 该方法可以由受控系统以及通过模拟电路操作的控制装置来实现。

    Apparatus for correcting a fuel apportionment signal in an internal
combustion engine
    8.
    发明授权
    Apparatus for correcting a fuel apportionment signal in an internal combustion engine 失效
    用于校正内燃机中的燃料分配信号的装置

    公开(公告)号:US4249498A

    公开(公告)日:1981-02-10

    申请号:US24490

    申请日:1979-03-27

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

    CPC分类号: F02D41/04

    摘要: Apparatus for correcting the fuel apportionment signal in an internal combustion engine during an alteration in quantity of the fuel which includes a first storage device charged according to the rpm, the storage value of which determines the content of a second storage device in accordance with certain time intervals and according to a specific function and the alteration signal of the second storage device is used for the correction of the fuel apportionment signal.

    摘要翻译: 用于在燃料量变化期间校正内燃机中的燃料分配信号的装置,其包括根据rpm充电的第一存储装置,其存储值根据特定时间确定第二存储装置的内容 间隔,并且根据具体功能,并且第二存储装置的改变信号用于燃料分配信号的校正。

    Apparatus for controlling an electrical switching element in internal
combustion engines
    9.
    发明授权
    Apparatus for controlling an electrical switching element in internal combustion engines 失效
    用于控制内燃机中的电气开关元件的装置

    公开(公告)号:US4231345A

    公开(公告)日:1980-11-04

    申请号:US24489

    申请日:1979-03-27

    摘要: This invention relates to an apparatus for controlling at least one electrical switching element in internal combustion engines, particularly the main relay of the voltage supply, in accordance with one operating characteristic and with a switch position which indicates an operating condition, in which the signal corresponding to the operating characteristic can be fed to a storage device whose charging and/or discharging process can be influenced by the switch relative to the ignition with the value of the storage signal serving to control the electrical switching element. Furthermore, the signal in accordance with the operating condition and, indirectly or directly, corresponding to the operating characteristic can be fed to a connection point whose output signal can be switched to a switching device for heating the heating wire in an air flow rate meter to a red-hot condition.

    摘要翻译: 本发明涉及一种用于根据一个操作特性和指示操作状态的开关位置来控制内燃机中的至少一个电气开关元件,特别是电压源的主继电器的装置,其中信号对应 操作特性可以被馈送到存储装置,其充电和/或放电过程可以相对于点火器受到开关的影响,并且具有用于控制电气开关元件的存储信号的值。 此外,根据操作条件,间接地或直接地对应于操作特性的信号可以被馈送到连接点,其输出信号可以切换到用于将空气流量计中的加热丝加热的开关装置, 一个红热的条件。

    Warm-up regulator for enriching the air-fuel mixture delivered to an
internal combustion engine
    10.
    发明授权
    Warm-up regulator for enriching the air-fuel mixture delivered to an internal combustion engine 失效
    预热调节器,用于丰富输送到内燃机的空气燃料混合物

    公开(公告)号:US4227491A

    公开(公告)日:1980-10-14

    申请号:US2480

    申请日:1979-01-10

    CPC分类号: F02D41/047

    摘要: A warm-up regulator device for enriching the air-fuel mixture delivered to an internal combustion engine during the engine warm-up phase, said engine having a fuel-metering system with a switching arrangement for generating metering signals in response to a group of engine operating parameters, a compensation stage for correcting the metering signals and a fuel-metering means, wherein the compensation stage is connected to a function generator for producing a signal which is speed-responsive to compensate for condensation losses in the walls of the fuel lines and engine when the engine is cold thus optimizing the operation of the engine. Also disclosed are several ways for reducing the compensation for condensation losses at higher speeds to prevent a negative affect on the exhaust gases and to match the regulator to various engines.

    摘要翻译: 一种预热调节装置,用于在发动机预热阶段期间丰富输送到内燃机的空气燃料混合物,所述发动机具有燃料计量系统,该燃料计量系统具有响应一组发动机产生计量信号的切换装置 操作参数,用于校正计量信号的补偿级和燃料计量装置,其中补偿级连接到功能发生器,用于产生速度响应以补偿燃料管线的壁中的冷凝损失的信号,以及 引擎在发动机冷却时可以优化发动机的运行。 还公开了几种减少在较高速度下的冷凝损失的补偿的方法,以防止对废气的负面影响并使调节器与各种发动机相匹配。