| 摘要 |
PROBLEM TO BE SOLVED: To surely inform a driver of realization of a four-wheel drive condition expected by the driver, in a vehicle to allow switching between a two-wheel drive condition and the four-wheel drive condition. SOLUTION: In this vehicle wherein a hydraulic clutch is fastened by oil pressure generated by a revolutional difference between main drive wheels and sub-drive wheels to bring the four-wheel drive condition, an announcing means is actuated to inform the driver of the realization of the four-wheel drive condition when the oil pressure come to a threshold value or more, and when an engine load comes to a threshold value or more. The annoucing means is prevented thereby from being actuated when not brought substantially into the four-wheel drive condition, and the means is prevented from being actuated by the oil pressure generated the revolutional difference between the main drive wheels and the sub-drive wheels accompanied to tight turn in a low torque area where a throttle is brought into low opening even when the oil pressure is generated by the revolutional difference between them, so as to prevent the driver from feeling unfamiliar feeling.
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