Patent ID: 7149621

Claim:
A control device for an engine driven vehicle that includes an engine having a crankshaft connected to driving wheels of a vehicle body via a power transmission device in order to drive the vehicle body, and a power supply unit that has a generator driven by said engine and uses said generator as a power supply to supply power to an external load, and is comprised so as to supply power from said generator to an external load when driving is stopped, comprising: engine control means for performing control required for driving said engine, control for keeping a rotational speed of said engine to a target rotational speed, and rotational speed limit control for limiting the rotational speed of said engine to a limit rotational speed or lower; a mode selection switch for selecting a control mode between a driving time control mode and a control mode for generating electric power; generation control means for controlling said power supply unit and determining the target rotational speed of said engine so as to generate a predetermined output from said power supply unit when said mode selection switch selects the control mode for generating electric power; and limit rotational speed switching means for switching said limit rotational speed in accordance with the control mode so that when said control mode is the driving time control mode, said limit rotational speed is set to a rotational speed corresponding to an upper limit value of the rotational speed of said engine accepted while vehicle driving, and when said control mode is the control mode for generating electric power, said limit rotational speed is set to a rotational speed slightly higher than an upper limit value of a rotational speed required for supplying power from said power supply unit to the external load, wherein when said mode selection switch selects the driving time control mode, the control mode is set to the driving time control mode to perform control required for driving said vehicle, and when said vehicle is stopped and said mode selection switch selects the control mode for generating electric power, the control mode is set to the control mode for generating electric power to perform control required for supplying power from said power supply unit to the external load.