Apparatus for determining the duration of fuel injection control pulses
    12.
    发明授权
    Apparatus for determining the duration of fuel injection control pulses 失效
    用于确定燃料喷射控制脉冲持续时间的装置

    公开(公告)号:US4199812A

    公开(公告)日:1980-04-22

    申请号:US920578

    申请日:1978-06-29

    IPC分类号: F02D41/24 F02D5/00 G06F15/50

    CPC分类号: F02D41/2403 F02D41/2416

    摘要: A fuel injection system receives valve control pulses, the length of which determines the fuel quantity delivered to the engine. A first counter receives a pulse train whose frequency depends on the air flow rate and this pulse train is admitted for a period defined by the engine speed. The content of the counter is then counted out at a frequency which is synthesized from operational parameters of the engine, including, in particular, the temperature. For this purpose, there is generated a temperature-dependent frequency which is fed to a multiplier circuit which combines this frequency with data derived from a memory to generate an output signal which is further processed to provide the fuel injection pulses for the engine.

    摘要翻译: 燃料喷射系统接收阀门控制脉冲,其长度决定了输送到发动机的燃料量。 第一计数器接收脉冲序列,其频率取决于空气流量,并且该脉冲序列被允许在由发动机速度定义的时间段内。 然后以从发动机的操作参数合成的频率计数计数器的内容,特别是包括温度。 为此,产生温度相关的频率,该频率被馈送到将该频率与从存储器导出的数据组合的乘法器电路,以产生进一步处理以提供用于发动机的燃料喷射脉冲的输出信号。

    Automatic transmission digital control system
    13.
    发明授权
    Automatic transmission digital control system 失效
    自动变速箱数控系统

    公开(公告)号:US4198882A

    公开(公告)日:1980-04-22

    申请号:US862441

    申请日:1977-12-20

    摘要: Transmission gear change characteristic curves, relating speed and loading, are stored in a memory. The digitally stored data are processed in a data processing unit connected to a synchronization and logic unit which controls a gear change control stage, actually controlling the gear shifting. The data processing unit compares output speed of the transmission with the characteristic curves stored in the memory relating speed and loading, and optimum transmission gear range, while additionally considering load signals derived from the engine to which the transmission is connected. Preferably, the entire unit is synchronized by output pulses derived from the output speed of the transmission, with prohibited states and gear changes being provided for to prevent shifting if the actual speed exceeds or recedes below critical levels.

    摘要翻译: 传动齿轮变速特性曲线,相关速度和载荷,存储在一个存储器中。 数字存储的数据在连接到控制变速控制级的同步和逻辑单元的数据处理单元中进行处理,实际上控制变速。 数据处理单元将传输的输出速度与存储在存储器中的与速度和载荷相关的特性曲线以及最佳传动档位进行比较,同时另外考虑从传动装置所连接的发动机得到的载荷信号。 优选地,整个单元通过从变速器的输出速度导出的输出脉冲同步,如果实际速度超过或退回到临界水平以下,则提供禁止状态和齿轮变化以防止换档。

    Method and apparatus to determine the timing of a periodically
repetitive event with respect to the position of a rotating body, and
more particularly ignition timing, fuel injection timing, and the like,
in automotive internal combustion engines
    14.
    发明授权
    Method and apparatus to determine the timing of a periodically repetitive event with respect to the position of a rotating body, and more particularly ignition timing, fuel injection timing, and the like, in automotive internal combustion engines 失效
    在汽车内燃机中确定相对于旋转体的位置的周期性重复事件的定时,尤其是点火正时,燃料喷射正时等的方法和装置

    公开(公告)号:US4099495A

    公开(公告)日:1978-07-11

    申请号:US719068

    申请日:1976-08-30

    摘要: A pair of marker signals are generated with respect to a predetermined crankshaft position; the leading edge of the marker signal is used as a control edge to generate, by digital calculation, a digital control signal calculated in accordance with engine operating characteristics, as related to speed, loading, and the like, and providing a numerical output value used as a control value to control the timing of a pulse which may, depending on use, control: ignition timing; fuel injection timing; transmission gear shifting, the data relating engine performance, with respect to loading, speed, and other parameters such as temperature, starting conditions, and the like, being stored in a data memory. Calculation of the digital control signals and determination, by timed sequential counting out, are carried out independently from each other and during time overlap. Under starting, or emergency condition, an override can be provided coupling the trailing flank of the marker signal -- occurring, for example, at upper dead-center position of the cylinder -- to the output of the system to provide directly generated ignition pulses.

    摘要翻译: 相对于预定的曲轴位置产生一对标记信号; 标记信号的前沿用作控制边沿,通过数字计算,产生与速度,加载等相关的根据发动机操作特性计算的数字控制信号,并提供使用的数字输出值 作为用于控制脉冲的定时的控制值,其可以根据使用控制:点火正时; 燃油喷射正时; 变速器换档,关于装载,速度和诸如温度,起动条件等的其它参数的发动机性能的数据存储在数据存储器中。 数字控制信号的计算和通过定时顺序计数的确定彼此独立地进行,并且在时间重叠期间进行。 在启动或紧急情况下,可以提供将标记信号的后端(例如在气缸的上死点位置发生)连接到系统的输出的超控,以提供直接产生的点火脉冲。