车速表台架检测数据统计分析与建模

Statistical Analysis and Modeling of Data Measured from a Vehicle Speedometer Test-bed

对车速表试验台检测所获得的样本数据进行统计分析 ,建立相应的数学模型 ,模型计算与样本实测数据计算结果高度吻合。并对国家标准和国外情况的比较、车速表指示误差的产生及与该误差相关的若干问题进行了探讨。研究结果对掌握汽车车速表的指示误差规律、指导产品的研究和开发、确保车辆的安全行驶等具有重要的作用。

Statistical analysis was carried out for the sample data measured by a speedometer test-bed, and corresponding mathematical models were established. The results from the model coincided with those from the measurement. At the same time, a comparison was made between the data from the Chinese national standard and foreign references, and the production of speedometer indicatory error and something related to the error were analyzed.