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    • 21. 发明授权
    • Stabilized fuel injection system
    • 稳定燃油喷射系统
    • US4015563A
    • 1977-04-05
    • US608211
    • 1975-08-27
    • Ulrich DrewsLothar WinkelmannPeter Werner
    • Ulrich DrewsLothar WinkelmannPeter Werner
    • F02D41/34F02B1/04F02D41/18F02D41/32F02B3/00
    • F02D41/182F02D41/32F02B1/04
    • To prevent bucking of a fuel injection operated automotive engine, under transient dynamic conditions, due to resilient suspension thereof, a timing capacitor in the fuel injection system has an auxiliary capacitor connected in parallel thereto over a diode, the auxiliary capacitor having its own charge circuit, and the diode and charge circuit being so arranged that the diode becomes conductive when the voltage across the main capacitor exceeds the voltage across the auxiliary capacitor, thus delaying and flattening the charge rate to the main capacitor without, however, detracting from total charge being placed on both capacitors to prevent excessive changes in fuel valve injection timing under transient engine operating conditions.
    • 为了防止燃油喷射操作的汽车发动机的弯曲,在瞬态动态条件下,由于其弹性悬浮,燃料喷射系统中的定时电容器具有通过二极管并联连接的辅助电容器,辅助电容器具有其自己的充电电路 并且二极管和充电电路被布置成当主电容器两端的电压超过辅助电容器两端的电压时二极管导通,从而延迟和平坦化主电容器的充电速率,而不会损害总电荷 放置在两个电容器上,以防止在瞬态发动机运行条件下燃油阀喷射正时的过度变化。
    • 23. 发明授权
    • Air flow rate meter for an internal combustion engine
    • 内燃机空气流量计
    • US4474058A
    • 1984-10-02
    • US348121
    • 1982-02-11
    • Ulrich DrewsPeter RappsKarl StaigerKlaus Streit
    • Ulrich DrewsPeter RappsKarl StaigerKlaus Streit
    • G01F1/68G01F1/698G01P5/12
    • G01F1/698
    • An air flow rate meter in an internal combustion engine which functions on the principle of a constant-temperature anemometer is proposed. The device includes a resistance measurement bridge with a regulatable total bridge current, and the relative orientation between the bridge diagonal voltage and the input voltage of a subsequent amplifier is variable. By means of this variation, an adjustment can be made of the set-point and actual curves of the air flow rate meter. In accordance with a first exemplary embodiment, a supplementary current is supplied to one of the connecting lines of the bridge diagonal and the amplifier; in accordance with a second exemplary embodiment, a voltage divider is located between the bridge diagonal points, and one of the voltage divider resistors is connected parallel to an amplifier having a specific offset voltage.
    • 提出了一种以恒温风速计为原理的内燃机中的空气流量计。 该器件包括具有可调整总电桥电流的电阻测量桥,并且桥对角线电压和后续放大器的输入电压之间的相对取向是可变的。 通过这种变化,可以对空气流量计的设定点和实际曲线进行调整。 根据第一示例性实施例,辅助电流被提供给桥对角线和放大器的连接线之一; 根据第二示例性实施例,分压器位于桥对角点之间,并且其中一个分压电阻器并联连接到具有特定偏移电压的放大器。
    • 24. 发明授权
    • Linearizing and control circuit for air flow rate meter
    • 空气流量计线性化和控制电路
    • US4437339A
    • 1984-03-20
    • US300090
    • 1981-09-08
    • Ulrich DrewsPeter RappsPeter Werner
    • Ulrich DrewsPeter RappsPeter Werner
    • F02D41/34F02D41/18F02D41/24F02D45/00G01F1/00G01F1/68G01F1/696G01M15/00
    • F02D41/2412
    • An electrically controlled fuel metering system having an air flow rate meter device in the air intake tube and a subsequent linearizing circuit layout is proposed. The linearizing circuit layout functions in accordance with the point-slope method and is embodied as a voltage-to-current converter. A first exemplary embodiment of the linearizing circuit layout has transistors coupled with one another respectively at the base and collector sides, the emitters of which are connected with different potentials and are triggered on the base side. In a second exemplary embodiment, individual transistors or transistors which are combined into groups receive their trigger signal via separate amplifiers, while the collectors in turn are carried to a common output point and the emitters likewise have different signal levels. Because of its relatively simple design, the proposed embodiments are particularly well suited to the purposes of integration.
    • 一种电气控制燃料计量系统,其具有进气管中的空气流量计装置和随后的线性化电路布局。 线性化电路布局根据点斜率法进行功能化,并被实现为电压 - 电流转换器。 线性化电路布局的第一示例性实施例具有分别在基极和集电极侧彼此耦合的晶体管,其发射极与不同的电势连接并且在基极侧被触发。 在第二示例性实施例中,组合成组的各个晶体管或晶体管经由分离的放大器接收它们的触发信号,而集电器又被传送到公共输出点,并且发射器同样具有不同的信号电平。 由于其相对简单的设计,所提出的实施例特别适合于集成的目的。
    • 27. 发明授权
    • Device for regulating the fuel-air ratio in internal combustion engines
    • 用于调节内燃机燃油比的装置
    • US4393841A
    • 1983-07-19
    • US276760
    • 1981-06-24
    • Ulrich DrewsPeter WernerWerner Mohrle
    • Ulrich DrewsPeter WernerWerner Mohrle
    • F02D41/14G01N27/406F02B3/08
    • F02D41/148G01N27/4065
    • A device is proposed for regulating the fuel-air ratio in the operating mixture of an internal combustion engine and for monitoring the operational readiness of a .lambda. sensor controlling the regulating device and functioning by the principle of ion conduction in solid electrolytes. The .lambda. sensor has an adjustable, constant reference voltage switched opposite to it. The reference voltage approximately equals the average sensor output voltage. The level of the resultant voltage, which is established with the aid of the resultant current and has values located symmetrically with respect to the reference voltage, is monitored by comparator devices. The output signal of the comparator devices is logically processed and furnishes a signal as to the operational readiness of the sensor. In order to generate the reference voltage, a voltage divider branch having high resistance is disposed parallel to a voltage divider branch of relatively low resistance; the latter voltage divider branch further serves to establish the threshold values of the comparator devices. Because it is independent of the current draw of the comparator devices, the desired reference voltage can be adhered to very precisely, and thus the desired regulating point at which closed-loop control or regulation begins of the regulating device can also be adhered to very precisely.
    • 提出了一种用于调节内燃机的操作混合物中的燃料空气比的装置,并且用于监测控制调节装置的λ传感器的操作准备状态并且通过固体电解质中的离子传导原理起作用。 λ传感器具有可调节的恒定参考电压,与此相反。 参考电压大致等于传感器的平均输出电压。 借助于所得到的电流并且具有相对于参考电压对称设置的值的合成电压的电平由比较器装置监视。 对比较器装置的输出信号进行逻辑处理,并提供关于传感器运行准备状态的信号。 为了产生参考电压,具有高电阻的分压器支路平行于相对低电阻的分压器分支布置; 后一分压器分支进一步用于建立比较器器件的阈值。 由于它与电流比较器不同,所以可以非常精确地遵循所需的参考电压,因此也可以非常精确地遵循调节装置的闭环控制或调节开始的期望调节点 。