| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel pressure control device which calculates a valve opening motion point at which a pressure regulator is valve-opened without causing chattering, and can control the pressure of fuel at high accuracy by correction based on the valve opening motion point.SOLUTION: In two motion ranges sandwiching a motion point at which a pressure regulator 19 is valve-opened, characteristic formulae of a voltage supplied to a motor 10 and a current flowing in the motor 10 at the application of the voltage to the motor are calculated on the basis of a detection result of a motion detection part, and calculates a common solution of the two characteristic formulae as a valve opening motion point being the motion point at which the pressure regulator 19 is valve-opened.SELECTED DRAWING: Figure 8 |
