驾驶行为参数与动力电池电压的相关性分析

Correlation Analysis Between Driving Behavior Parameters and Power Battery Voltage

本文对驾驶行为参数与动力电池电压的相关性研究进展进行了阐述,采用镍钴锰酸锂电池作为动力源的车型设计了驾驶实验,通过车联网系统、高级驾驶辅助系统和三轴陀螺仪等设备获取各类参数,利用皮尔逊相关系数法分析了驾驶行为参数与动力电池电压的相关性,结果表明:电池SOC与电池总电压呈极强相关性;加速踏板行程、总电流、车速与电池总电压呈强相关性;加速度、制动踏板行程与电池总电压呈中度相关性,环境温度与电池总电压呈极弱相关性。通过相关性分析结果,确定了与电池组电压相关的驾驶行为、动力电池特征指标。

This article describes the progress in research on the correlation between driving behavior parameters and power battery voltage.A driving experiment was designed for a vehicle model using nickel cobalt lithium manganate batteries as the power source.Various parameters were obtained through the Internet of Vehicles system,advanced driving assistance system,and three-axis gyroscope.The Pearson correlation coefficient method was used to analyze the correlation between driving behavior parameters and power battery voltage,The results show that there is a strong correlation between battery SOC and total battery voltage;Accelerator pedal travel,total current,and vehicle speed are strongly correlated with the total battery voltage;Acceleration,brake pedal travel,and total battery voltage have a moderate correlation,while ambient temperature has a very weak correlation with total battery voltage.Based on the correlation analysis results,the driving behavior and power battery characteristic indicators related to the battery pack voltage were determined.