| 摘要 |
To lay out a plurality of tumble detecting sensors so that a tumble can be accurately detected, in an ATV. Tumble sensors are both provided on the front lower side of a fuel tank and in the vicinity of a column for supporting a steering handle. The tumble sensor generates an output corresponding to the inclination in the left-right direction of a vehicle body, while the tumble sensor generates an output corresponding to the inclination in the front-rear direction of the vehicle body. Specifically, t he tumble sensors are laid out such that the extension lines of the inclination directions to which the tumble sensors respond with their maximum sensitivities intersect each other. In addition, the tumble sensors are disposed such that the extension line concerning one of the sensors crosses the other sensor; namely, the tumble sensors are disposed roughly at the same position in the vehicle width direction or in the vehicle length direction.
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