| 摘要 |
PURPOSE: To reduce the superheating period of catalyst temperature so as to prevent degradation by shifting up a speed change stage to a high speed stage in the case of fuel cut-off being performed at the specified value or more of engine rotation, and increasing the fuel quantity while suppressing up-shift in the case of judging the low temperature time. CONSTITUTION: An engine control circuit 60 normally controls high voltage generating timing (ignition timing) from an ignition coil 73 to a spark plug 69, the valve open time (fuel injection quantity) of an injector 62, and the like on the basis of detection signals from sensors 49, 76, 67, 65, 68, 74, 63, 74, 77, and executes the delay control of ignition timing and fuel cut-off control on the basis of an engine torque control execution signal from an acceleration slip control circuit 40. The engine control circuit 60 also outputs information such as cylinder cut-off authorization to the acceleration slip control circuit 40 while inputting an engine torque reducing signal and outputs commands of demanding up-shift, down-shift and the like to make a transmission 75 perform speed change. |
