| 摘要 |
PURPOSE: A variable intake system and a monitoring method thereof are provided to minimize the discharge of exhaust gas by stopping the control of the variable intake system and limiting the ignition time and accelerator opening degree in case the malfunction of a solenoid valve is determined. CONSTITUTION: A monitoring method of a variable intake system comprises following steps. A solenoid valve is operated at one time in case of starting(S12). Signals are received from a lever position sensor of the solenoid valve which is adjacent to the lever of the solenoid valve. The position of the lever of the solenoid valve and position variation are studied using the signals of the lever position sensor of the solenoid valve(S14). The operation section of the lever of the solenoid valve is revised based on the signals of the lever position sensor of the solenoid valve(S16). Whether the location of the lever of the solenoid valve belongs to the normal range of the positional deviation or not is decided(S18). |
