| abstract |
Exhaust gas is prevented from deteriorating when the engine is restarted after an idle stop. In an engine 1 having a catalyst 4 for purifying exhaust gas in an exhaust system, a deceleration fuel cut means 8 for performing fuel cut according to a deceleration traveling state of a vehicle, and at the time of return from the fuel cut, A fuel injection means 8 at the time of return for injecting a required amount of fuel to eliminate the overoxygen state, and a first idle for determining whether engine idle stop is possible after the deceleration fuel cut and stopping the engine based on the determination result When it is determined by the stop permission means 8, the clutch means for connecting and disconnecting the torque transmission path between the wheel and the engine 1, and the first idle stop permission means 8 that the idle stop is possible, And torque control means 8 for interrupting torque transmission through the clutch means simultaneously with the end of the return fuel injection. [Selection] Figure 1 |