| 摘要 |
PROBLEM TO BE SOLVED: To increase an opportunity of ventilating a blow-by gas while using a mechanical PCV valve.SOLUTION: During execution of fuel cut in response to a deceleration request, by daring to expand an opening degree of an electronic throttle valve, so that differential pressure between pressure within a crank room and pressure within a suction passage is reduced and an opening degree of a PCV valve is expanded. Thus, while utilizing a fuel cut period, a blow-by gas within the crank room can be ventilated. |
