汽车续航里程变化过快问题及剩余油量滤波方法讨论

Discussion on Vehicle Fuel Range Discontinuity Problem and Remaining Oil Filtering Method

续航里程是整车状态信息显示的重要组成部分,由于续航里程较为直观地影响到驾驶员感知和判断,续航里程问题一直是客户抱怨的重要项。本文根据续航里程定义,将总线上剩余油量和实时喷油量累计进行对比,确认了续航里程变化过快的原因,并在组合仪表端对剩余油量百分比信号增加了一阶低通滤波,探讨了剩余油量快速变化的情况下一阶低通滤波对续航里程跳动的有效性。

Fuel range is an important component of vehicle status information.As the intuitive sense for drivers,fuel range problem is always complained about by customers.Based on the concept of fuel range,through comparingremaining oil and the fuel of total injecting,the cause of fuel range changing quickly is identified.The first orderlow-pass filter for remaining oil signal is added on the dashboard.The first order low-pass filter is effective to fuel range discontinuity,when remaining oil changes quickly.