【摘要】 设计了一种将重力势能转化成动能的势能小车，通过凸轮机构控制前轮转向，使小车运动具备自动寻迹打卡功能。依据竞赛命题文件中各打卡点坐标位置，对设计的小车车轮及传感器运动规律进行分析，根据运动规律方程采用MATLAB对小车运动轨迹进行仿真，并优化出小车传感器最佳打卡运动轨迹，按照最佳运动轨迹确定小车各部分结构参数，并采用CATIA进行三维结构建模。制作小车零件并装配测试，验证了势能小车结构设计的合理性和运动的稳定性。更多还原

【Abstract】 In this article a potential energy car is designed, which can convert the gravitational potential energy into the kinetic energy. The cam mechanism is used to control the front wheel’s steering; the car is equipped with the automatic tracking-and-checking function. According to the coordinates of each checking point specified in the competition proposition document, the analysis is conducted on the motion patterns of the car’s each wheel and sensor. According to the equation of motion patterns, MATLAB is used for trajectory simulation, in order to optimize the checking trajectory of the car’s sensor. The structural parameters of each part of the car are determined according to the optimal trajectory, and CATIA is used for 3D structural modeling. The car parts are fabricated and assembled for a series of test. It is verified that the potential energy car has rational structural design and steady motion.更多还原