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    • 2. 发明授权
    • Apparatus for controlling the current through an electromagnetically
actuatable injection valve in an internal combustion engine valve in an
internal combustion engine
    • 用于通过内燃机内燃机阀中的电磁致动喷射阀控制电流的装置
    • US4328526A
    • 1982-05-04
    • US110163
    • 1980-01-07
    • Peter DilgerGunter HonigHelmut Kauff
    • Peter DilgerGunter HonigHelmut Kauff
    • F02D41/20F02M51/06H01F7/18H03K1/14
    • F02D41/20F02D2041/2017F02D2041/2031F02D2041/2041F02D2041/2058
    • An apparatus for controlling the current through an electromagnetic injection valve of an internal combustion engine during its pickup and holding phases by opening and closing a first switch connecting the valve to a voltage source. The first switch is initially closed by a valve timing circuit to initiate pickup of the valve. A first current-sensing resistor connected in series with the first switch produces a signal to open the first switch when the valve current attains an upper threshold value which assures valve pickup, and to close a second switch connected in series with a second current-sensing resistor across the valve. When the valve current drops to a lower threshold value greater than the valve drop-out current, the second current-sensing resistor produces a signal to reclose the first switch and open the second switch for a predetermined time, after which the first switch is again opened and the second switch closed. The cyclic opening and closing of these switches by the second current-sensing resistor continues until both switches are opened by the valve timing circuit. In another embodiment, the pickup time of the valve is determined by measuring the time for the valve current to increase to a predetermined value after it is first energized by the value timing circuit, and the valve holding time is adjusted in accordance with the valve pickup time, to assure correct fuel injection even when the voltage source is not maintained constant.
    • 一种用于通过打开和关闭将阀连接到电压源的第一开关来控制通过内燃机的电磁喷射阀在其拾取和保持阶段期间的电流的装置。 第一开关最初由气门正时电路关闭,以启动阀门的起动。 与第一开关串联连接的第一电流感测电阻器在阀电流达到上限阈值时产生信号以打开第一开关,该阈值确保阀拾取,并闭合与第二电流感测串联连接的第二开关 电阻穿过阀门。 当阀门电流下降到大于阀门脱出电流的下限阈值时,第二电流检测电阻器产生信号以重新闭合第一开关并打开第二开关一段预定的时间,之后第一开关再次 打开,第二个开关关闭。 这些开关由第二电流检测电阻器的循环打开和关闭继续进行,直到两个开关被气门正时电路打开。 在另一个实施例中,通过在通过值定时电路首次通电之后测量阀电流增加到预定值的时间来确定阀的拾取时间,并且根据阀拾取器调节阀保持时间 时间,以确保即使当电压源不保持恒定时燃料喷射正确。
    • 4. 发明授权
    • Speed control for motor vehicles with microcomputer step-by-step control
    • 机动车速度控制与微电脑一步一步的控制
    • US4677560A
    • 1987-06-30
    • US679311
    • 1984-12-07
    • Chi-Thuan CaoHelmut JanetzkeHenning CordesHelmut Kauff
    • Chi-Thuan CaoHelmut JanetzkeHenning CordesHelmut Kauff
    • B60K31/04F02B1/04G05D13/62B60K31/00
    • B60K31/045F02B1/04
    • The speed to be measured, either engine speed or vehicle (drive wheel) speed, is measured by a tachogenerator which trips a timer to provide a series of measurements. When the system is in use, a driver can store the actual speed at a selected moment as the desired speed. From a linearized model of vehicle speed or engine speed response to acceleration or deceleration of the engine by displacement of a control member, system parameters a.sub.1 and b.sub.1 are derived. The actual speed signal is multiplied by a.sub.1 and added algebraically (to produce a difference signal) to the desired speed signal, with the resulting signal then being multiplied by another constant derived from the system parameter b.sub.1 by reference to weighting factors p and q of a cost minimizing equation relating to the relative significance of obtaining a small control deviation and of limiting or increasing the amplitude of the control signal. An output signal is then provided by the second multiplying stage. The system can be constituted in an analog fashion or it may operate digitally by means of a microprocessor. Smoothing of the input and output signals may be provided by low-pass filtering in the analog case and by providing a moving average with the preceding value in the digital case. This type of regulation, which may be referred to as cyclic or as single-step control, assures an aperiodic run-in characteristic and is stable in all speed ranges.
    • 要测量的速度,即发动机速度或车辆(驱动轮)速度,由测速发电机测量,该测速发电机跳闸定时器以提供一系列测量。 当系统使用时,驾驶员可以将所选速度的实际速度存储为所需速度。 从控制构件的位移的车速或发动机转速响应到发动机的加速或减速的线性化模型,导出系统参数a1和b1。 将实际速度信号乘以a1,并将其代数化(产生差分信号)加到期望的速度信号上,结果信号然后乘以另一常数,通过参考系统参数b1导出的加权因子p和q 与获得小的控制偏差和限制或增加控制信号的幅度的相对重要性有关的成本最小化方程。 然后由第二乘法级提供输出信号。 该系统可以以模拟方式构成,或者可以通过微处理器进行数字操作。 可以通过在模拟情况下的低通滤波来提供输入和输出信号的平滑,并且通过在数字情况下提供具有先前值的移动平均值。 这种类型的调节可以被称为循环或单步控制,保证了非周期的运行特性,并且在所有速度范围内都是稳定的。
    • 7. 发明授权
    • Regulating device for a fuel metering system
    • 用于燃料计量系统的调节装置
    • US4440131A
    • 1984-04-03
    • US294877
    • 1981-08-21
    • Gunter FelgerOtto GlocklerHelmut KauffUwe KienckeHeinrich KnappHerbert Stocker
    • Gunter FelgerOtto GlocklerHelmut KauffUwe KienckeHeinrich KnappHerbert Stocker
    • F02D41/14F02D41/34F02D5/00F02M7/12
    • F02D41/1487F02D41/1475
    • A lambda regulating device is proposed for a fuel metering system in an internal combustion engine with externally supplied ignition. In addition to the regulation means which is already present, multiplicative and additive corrective variables are formed and are stored in non-transient memories. The regulating device enables an additive regulated shutoff of the additive lambda shift during idling and in the lower partial-load range, and it also enables regulation to a symmetrical distance on the part of the regulating manipulation from the limitation. The additive correction may be selected to be in accordance with rpm. Finally, the reference variables for the corrective value may be selected depending upon the air throughput in the intake tube of the engine. With a view to realization of the invention by means of a computer, individual flow diagrams relating to the mode of operation are given in the drawings.
    • 提出了一种用于具有外部提供的点火装置的内燃机中的燃料计量系统的λ调节装置。 除了已经存在的调节装置之外,形成乘法和附加校正变量并将其存储在非瞬态存储器中。 调节装置能够在空转期间和在较低的部分负载范围内对添加剂λ移动进行附加的调节关闭,并且还使调节操纵部分上的对称距离受到限制。 添加剂校正可以选择为与转速一致。 最后,可以根据发动机的进气管中的空气通过量来选择校正值的参考变量。 为了通过计算机实现本发明,在附图中给出了与操作模式有关的各个流程图。