{
  "$type": "site.standard.document",
  "description": "The invention simplifies the structure of a magneto generator and stabilizes the operation of an internal combustion engine at the time of start-up, thereby providing an ignition device simplified in structure and reduced in size and providing improved safety to the internal combustion engine. In…",
  "path": "/patents/1008428",
  "publishedAt": "2011-10-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02P1/086",
    "IIDA DENKI KOGYO KK [JP]"
  ],
  "textContent": "The invention simplifies the structure of a magneto generator and stabilizes the operation of an internal combustion engine at the time of start-up, thereby providing an ignition device simplified in structure and reduced in size and providing improved safety to the internal combustion engine. In an ignition device for a capacitive discharge internal combustion engine, an ignition timing signal is calculated with a cycle detection signal obtained at a timing at which a forward voltage portion of an output voltage from a generator coil has reached a cycle detection voltage for making continual ignition operations available, and a peak voltage detection signal and a start-up voltage detection signal are obtained in accordance with a delayed reverse voltage portion of the output voltage from the generator coil. In a preset normal region speed or less in which a load is coupled to the engine, an ignition signal is output immediately after the peak voltage detection signal has been generated. In a normal region speed ormore, an ignition signal is output after the duration of the ignition timing signal from the point in time of output of the cycle detection signal. At the time of start-up, an ignition signal is output in response to the start-up voltage detection signal according to the cycle detection signal. This eliminates the need of a coil for generating a timing signal and provides a safe start-up operation. Furthermore a stop switch (10) is provided to manually stop the engine by removing and then continually outputting the ignition signal to the dischargeable switching element (7). In particular, the said ignition signal (s4) is continually output when a time from said cycle detection signal (s1) occurred most recently is longer than a preset stop time (h1) having been preset so as to be shorter than a short-circuit time (h2) between the forward terminal of said generator coil (6) and the ground and longer than one cycle of the internal combustion engine at least during the short-circuiting.",
  "title": "Method and device for controlling ignition timing of ignition device for internal combustion engine"
}