| 摘要 |
PROBLEM TO BE SOLVED: To enhance efficiency for regeneration while restraining deterioration of an exhaust emission characteristic. SOLUTION: When regeneration is conducted at the time of deceleration of a vehicle, a target opening θTHO of a throttle valve is set to zero (substantially full closed condition), and a command to open an EGR control valve fully is output (step S2213, S2214). Recirculation gas is smoothly circulated thereby to an engine 1 to reduce a pump loss, and in-flow of cold fresh air to an exhaust system is restrained since the fresh air does not flow in substantially via the throttle valve. |
