关键词: 钢带式 CVT；四轮全地形车；Simulink 模型；动力性

Abstract: In order to demonstrate the feasibility of a steel belt continuous variable transmission (CVT) matching four-wheel all-terrain vehicle, this paper establishes a Simulink model of steel belt CVT gearbox matching four-wheel all-terrain vehicle based on MATLAB according to the powertrain structure of the all-terrain vehicle. Using the model, the dynamics of the whole vehicle are simulated, and through the study of its working conditions and the simulation calculation of the maximum vehicle speed, acceleration time, maximum climbing degree and maximum traction, the goals set by the customer are compared with the goals set by the customer, so as to provide a preliminary demonstration basis for the feasibility analysis of the project. The simulation results show that this steel belt CVT can meet the performance goals of customers, and at the same time, it is verified that this model can complete the simulation calculation of fixed working conditions.

Key words: Steel belt CVT; Four-wheel all-terrain vehicle; Simulink model; Dynamics