汽车电子燃油表控制策略研究

为解决汽车仪表电子化后燃油表在不同运行条件下指示值不准确的问题，在系统分析问题产生的原因基础上，通过采用分时采样、自动纠偏、阀值记忆、一阶滤波处理及指针响应控制等策略，实现了在电压干扰、连续点火、信号突变及特定条件要求指针响应时间等情况下的准确采样和平稳指示。兼顾了燃油表在不同使用状态下显示的准确性和平稳性指标，实现的产品性能和使用效果均达到了汽车行业标准要求。

Research on Control Strategy of Automotive Electronic Fuel Meter

The problems of the automotive electronic fuel meter under different work situations are analyzed and studied. Under the situations of voltage disturbance, continuous ignition,signal mutations,specific response, the indicators of accurate sampling and smooth direction are realized.With the usage of such techniques as time-division sampling, auto-correction, threshold memory,first-order filter, and pointer response control,accurate sampling and smooth directions are achieved in case of the voltage disturbance, continuous ignition, signal mutations and the target response time on specific conditions. Both the accuracy and stability are taken into account. The realized product performance and the application results are in accordance with standard requirements for automotive