Patent ID: 8684885

Claim:
A vehicle driving system including: a first internal combustion engine section and a second internal combustion engine section that generate rotational powers, respectively; a first transmission mechanism and a second transmission mechanism that output the generated rotational powers of the first internal combustion engine section and the second internal combustion engine section while changing speeds thereof, respectively; a first one-way clutch and a second one-way clutch that are provided in the output portions of the first transmission mechanism and the second transmission mechanism, respectively, each one-way clutch having: an input member that receives the rotational powers from the first transmission mechanism and the second transmission mechanism; an output member; and an engagement member that makes the input member and the output member enter a locked state or an unlocked state with each other, so that the input member and the output member enter the locked state when a rotational speed of a positive direction of the input member exceeds a rotational speed of a positive direction of the output member, thereby transmitting the rotational power from the input member to the output member; and a driving target member that is commonly connected to the output members of the first one-way clutch and the second one-way clutch and transmits the rotational power to be transmitted to the output members of each one-way clutch to a driving wheel, wherein the generated rotational powers of the first internal combustion engine section and the second internal combustion engine section are input to the first one-way clutch and the second one-way clutch via the first transmission mechanism and the second transmission mechanism, respectively, and the rotational powers are input to the driving target member via the first one-way clutch and the second one-way clutch, respectively.