| 摘要 |
PURPOSE:To correct an error of injection control due to a response delay of pressure in a reference pressure chamber, in a fuel supply system provided with a pressure regulator for introducing a suction negative pressure into the reference pressure chamber to regulate a supply pressure of fuel. CONSTITUTION:A weighted mean value of basic injection pulse width Tp is calculated (S2) as a value Pm equivalent to an intake pressure in a nozzle part of an injection valve. Next, the change ratio DELTAPm of this nozzle part pressure Pm is calculated (S3). A correction coefficient KTe for correcting an effective injection pulse width Te ( basic injection pulse width Tp X various correction coefficients COEF), based on the change ratio DELTAPm, is set (S4), and the effective injection pulse width Te is corrected by the correction coefficient KTe (S5). |
