Vehicle electronic control unit

In a vehicle electronic control unit 10, a target throttle-opening-degree calculation unit 19 of an electronic-control throttle control unit C regulates a target throttle opening degree TRG to cause a rotational speed NE of an engine 2 to fall within a range of a rotational speed that enables a centrifugal clutch 5 to keep a disconnected state when a state of a center stand 6 detected by a center-stand-state detection unit 15 is a standing state.