VEHICLE

摘要

A vehicle comprises a plurality of driving wheels (11, 12, 13), a plurality of hydraulic motors (12, 22, 23) for respectively driving the plurality of driving wheels (11, 12, 13), and a plurality of hydraulic pumps (31, 32, 33). The vehicle has a low-speed running state and a high-speed running state. In the low-speed running state, the plurality of hydraulic pumps (31, 32, 33) respectively drives the plurality of hydraulic motors (12, 22, 23). In the high-speed running state, the plurality of hydraulic motors (12, 22, 23) is connected in parallel, and the plurality of hydraulic pumps (31, 32, 33) drives the plurality of parallel hydraulic motors (12, 22, 23) in a combined flow mode. Therefore, when the vehicle is in the low-speed running state during turning, the hydraulic motor (12, 22, 23) of each driving wheel (11, 12, 13) is separately driven by a hydraulic pump (31, 32, 33), so slippage of a certain driving wheel can be avoided. Also, when the vehicle is in the high-speed running state, synchronization of each driving wheel (12, 22, 23) can be ensured, and the safety of the vehicle is ensured.