| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To avoid cooling of an exhaust emission control device by surely increasing gas recirculation quantity to an intake passage from an exhaust gas passage even under a condition where exhaust gas pressure relatively drops in the exhaust gas passage during deceleration in an engine executing fuel cut, opening an EGR valve and closing an intake control valve during its deceleration. <P>SOLUTION: In this deceleration control device, a control unit 30 executes fuel cut, opens the EGR valve 19 and closes the intake control valve 15, and controls a nozzle formed out of movable vanes 13b provided at a turbine part 13 of a variable capacity supercharger 11 disposed in the exhaust gas passage 3 at a downstream of a connection part with an EGR passage 8 to a close direction when a deceleration state of the engine 1 is detected by an accelerator opening sensor 34. Consequently, exhaust gas pressure at least at the connection part with the EGR passage 8 in the exhaust gas passage 3 is raised. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
