Mechanical Variators in the Drives of Transportation Vehicle
The full use of available power and the preservation of the steady operating mode of the transportation vehicle power unit (internal combustion engine) under variable external loading is a very current problem. Researchers at Omsk State Technical University have developed original schemes of mechanical drives connecting the engine with the vehicle actuator. The drives are based on the schemes of mechanical variators with auto-changeable transmission function and non-holonomic connections between the main components. The proposed solutions contain a control circuit of the speed transmission function that follows the laws of mechanics and creates movement additional to the basic movement of the components. This movement is used to automatically control the kinematic characteristic of the variator. The authors have developed a general mathematical model of the movement of the mechanical variator whose transfer function depends of the transferred power level. The results of the calculations performed using the Excel software package are given. The variator harmonizes the components of the transformed power and ensures the steady operation of the vehicle engine under variable external loading.