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    • 23. 发明授权
    • System and method for detecting and influencing the phase position of an internal combustion engine
    • 用于检测和影响内燃机的相位的系统和方法
    • US06484691B1
    • 2002-11-26
    • US09763744
    • 2001-02-26
    • Thomas SchusterIngolf RuppAndreas Roth
    • Thomas SchusterIngolf RuppAndreas Roth
    • F02P1704
    • F02D41/009F02D41/3809F02D2041/0092F02D2041/389F02D2200/0602
    • The invention relates to an apparatus and a method for controlling and regulating an internal combustion engine 6; via a transducer disk 16 on the crankshaft 12 and a pickup 15, the annular position of the crankshaft 12 is ascertained continuously, with gasoline direct injection valves, in which the fuel injection valves 5 receive the fuel 1 from a pressure-imposing electric fuel pump 9 via a fuel rail 7. A control unit 25 evaluates the output signals of the pickup 15 to determine the annular position and to ascertain the rpm; depending on the annular position, the control unit 25 trips injection and/or ignition pulses. According to the invention, to detect the phase relationship of the engine 6, the pressure course in the fuel rail sensor 8 is evaluated. Upon blowback at compression counterpressure of fuel-air mixture into one of the injection valves in the event of an incorrect phase relationship offset by 360° KW, this leads to a significant pressure increase in the fuel rail sensor 8; the fuel rail sensor signal is delivered to the control unit 25, and as a result by means of the control unit a reverse synchronization by 360° KW of the ignition and injection is effected, and the affected fuel injection valve 5 into which the blowback takes place is immediately closed.
    • 本发明涉及一种用于控制和调节内燃机6的装置和方法; 通过曲轴12上的传感器盘16和拾取器15,利用汽油直接喷射阀连续地确定曲轴12的环形位置,其中燃料喷射阀5从施加压力的电动燃料泵接收燃料1 控制单元25评估拾取器15的输出信号以确定环形位置并确定转速; 取决于环形位置,控制单元25跳过喷射和/或点火脉冲。 根据本发明,为了检测发动机6的相位关系,评价燃料轨道传感器8中的压力路线。 在错误相位关系偏移360°KW的情况下,在燃料 - 空气混合物的压缩反压力回吹到一个喷射阀中时,这导致燃料轨道传感器8的显着的压力增加; 燃料轨道传感器信号被传送到控制单元25,结果通过控制单元实现360°KW的点火和喷射的反向同步,并且进行回吹的受影响的燃料喷射阀5 地方立即关闭。
    • 24. 发明授权
    • Ignition circuit for an internal combustion engine
    • 内燃机点火电路
    • US5447131A
    • 1995-09-05
    • US285303
    • 1994-08-03
    • Hans NickelThomas SchusterMichael Wissmann
    • Hans NickelThomas SchusterMichael Wissmann
    • F02P5/15F02P9/00
    • F02P5/1502F02P9/005Y02T10/46
    • The invention is directed to an ignition circuit for an internal combustion engine in a portable handheld work apparatus wherein a work tool is driven via a clutch. The ignition circuit includes an ignition time point control which connects a spark plug via a switch to a voltage source in order to trigger an ignition spark. The spark plug is mounted in the combustion chamber of the engine. This connection takes place in dependence upon the crankshaft angle and the rpm of the engine. In order to prevent damage to the clutch because of a blocked work tool, a test value counter driven via a rpm gate circuit is provided. The test value counter increments its value in the pregiven rpm window of the gate circuit with each rotation of the crankshaft and the content of the test value counter is compared to a pregiven limit value by a comparator. The output of the comparator activates a rpm-reducing protective circuit and the output of the comparator indicates reaching or exceeding the limit value.
    • 本发明涉及一种便携式手持式工作装置中用于内燃机的点火电路,其中通过离合器驱动作业工具。 点火电路包括点火时间点控制,其通过开关将火花塞连接到电压源以触发点火火花。 火花塞安装在发动机的燃烧室中。 这种连接取决于发动机的曲轴角度和转速。 为了防止由于工作工具被堵塞而对离合器造成损坏,提供了通过rpm门电路驱动的测试值计数器。 测试值计数器在曲轴的每次旋转时增加门电路的预定转速窗口中的值,并通过比较器将测试值计数器的内容与预定极限值进行比较。 比较器的输出启动减速保护电路,比较器的输出指示达到或超过极限值。