| 摘要 |
An all wheel drive personal transport vehicle is provided which can be used to transport persons over a wide range of terrains, while at the same time providing a vehicle that can be easily controlled and maneuvered. The vehicle includes a frame having a front end, a rear end, and first and second opposed sides. A first drive train is supported on the first side of the frame. A second drive train is supported on the second side of the frame. Each of the drive trains are adapted to be driven by a reversible motor and include front, middle, and rear wheels. Each of the wheels includes a pneumatic tires with a tire pressure. Preferably, the tire pressure of each of the middle wheels is greater than either of the tire pressures of the front and rear wheels so that the frame easily pivots about the tires on the middle wheels when the drive trains are driven in opposite directions or at different speeds. The increased tire pressure in the middle tires causes a greater proportion of the weight of the vehicle to be directed to the middle tires, thus minimizing the drag between the front and rear tires and the support surface. A method of improving the maneuverability of a six wheel drive vehicle is provided which includes the steps of providing a six wheel drive vehicle having a pair of front tires, middle tires, and rear tires and providing a pressure in each of the tires. The middle tires are provided with a pressure in the range of approximately two to four times greater than any of the tire pressures of the front and rear tires, such that the weight of the vehicle is distributed with greater proportion to the middle tires and the turning ability and general maneuvering ability is improved. |
