Domestic tractors have gone through three stages: sliding gear shifting, meshing sleeve shifting, and shuttle synchronizer shifting. In terms of technical level, they have become increasingly advanced. In terms of user operation, they have become more and more comfortable. For example, when shifting gears with shuttle, as long as the driver pushes the main and auxiliary gears to the right position, there is no need to keep pressing the clutch when moving forward or backward. Basically, it has achieved an automatic transmission similar to that of a car. However, when considering the smoothness of gear shifting, driving and riding comfort, operational efficiency, fuel economy and other comprehensive aspects, power steering, power shifting and CVT have the upper hand. The aspiration for a better life is the common wish of the people. According to Maslow's hierarchy of needs, after people obtain their basic functional needs, It will shift towards more advanced demands such as comfort, safety and self-actualization. Currently, tractors have passed the stage of basic functional requirements and are developing towards high efficiency, comfort, environmental friendliness and intelligence. All these trends of change are rooted in human needs and higher-level pursuits, and represent an irreversible trend.
