CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE
PURPOSE:To promote the control capacity in the whole area of number of revolutions by changing a schedule table prescribing the frequency and the starting order of AD-conversion on every input signal on the basis of a crank angle signal and a cylinder discrimination signal. CONSTITUTION:When the num...
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Zusammenfassung: | PURPOSE:To promote the control capacity in the whole area of number of revolutions by changing a schedule table prescribing the frequency and the starting order of AD-conversion on every input signal on the basis of a crank angle signal and a cylinder discrimination signal. CONSTITUTION:When the number of revolutions of an engine is in the area of high revolution, an MPU (microprocessor) 1321 uses a previously prescribed AD- conversion schedule table of high speed revolution, that is thins out the AD- conversion frequency of signals of a water temperature sensor 2 and a suction temperature sensor 3. In the area of low revolution, it uses a previously prescribed schedule table of low speed revolution, and increases the AD-conversion frequency of the water temperature 2. When the engine is neither in high nor low revolution area, a schedule table of the area of normal engine revolution is set. AD-conversion is carried on the basis of each schedule table, and the computation of engine control is processed on each input condition. This method permits to promote the control capacity in the whole area of number of revolutions. |
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