| 摘要 |
PURPOSE:To prevent the generation of surge during running downhill, by stopping fuel cut control under constant speed running control. CONSTITUTION:An actuator 9 for constant speed running control is connected to a throttle valve 6 in a suction pipe 4. A fuel control circuit 48 may carry out fuel cut at deceleration or the like. When a control device 30 receives a signal from a vehicle speed sensor 10 or the like, and detects that a detected vehicle speed has become greater than a target vehicle speed by a predetermined value or more, the control circuit 30 operates to drive the fuel control circuit 48 and carry out fuel cut. However, when a deviation in vehicle speed is less than the predetermined value, the fuel cut is inhibited. Accordingly, the generation of surge during running downhill may be prevented.
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