Patent ID: 6843753

Claim:
A vehicle driven by an internal combustion engine comprising: a power transmission device that is provided between a crankshaft of said internal combustion engine and drive wheels of said vehicle, and enters a state of transmitting power from said internal combustion engine to said drive wheels when a rotational speed of said internal combustion engine reaches a predetermined power transmission start rotational speed or higher; and a power supply unit that uses a generator driven by said internal combustion engine as a power source to supply electric power to a load when said vehicle is stopped, wherein said vehicle driven by said internal combustion engine further comprises: rotational speed detection means for detecting the rotational speed of said internal combustion engine; valve control means for on/off determination which controls means for operating a valve that adjusts an intake air amount of said internal combustion engine so as to gradually increase an opening degree of said valve when an instruction to start said generator is provided; determination value detection means for detecting, as a determination value, a value that reflects a magnitude of a load applied on said internal combustion engine when the rotational speed of the internal combustion engine reaches said power transmission start rotational speed in a process where said valve control means for on/off determination gradually increases said valve opening degree, and then, when said valve opening degree is further increased by a set angle that is preset within a range so as not to start said vehicle; and determination means for determining that said power transmission device is in a state of cutting power transmission when it is determined from said determination value that the load applied on the internal combustion engine is less than a preset determination reference load, and determining that said power transmission device is in a state of performing the power transmission when it is determined from the determination value that the load applied on said internal combustion engine is equal to or more than said determination reference load.