| 摘要 |
PROBLEM TO BE SOLVED: To reduce damages given to lawn by the wheels of a mowing vehicle. SOLUTION: The first right and left wheels 11L, 11R are attached to the right and left sides of an axle, and are independently rotated. The second right and left wheels 11L, 11R are attached to the right and left sides of an axle behind the first right and left wheels 11L, 11R, and are independently rotated. The first electric motor 53 drives the left wheel 11L, and further drives the left wheel 51L. The second electric motor 53R drives the right wheel 11R, and further drives the right wheel 52R. Controllers 83, 84 control the first and second electric motors. Herein, the distance between the axle of the first right and left wheels 11L, 11R and the axle of the second right and left wheels 51L, 51R is smaller than a wheel base determined on the basis of the turning radius of the inner wheel, on the basis of the maximum slip angle of the wheel on the turning. COPYRIGHT: (C)2004,JPO |
