摘要
针对电控发动机传感器故障诊断困难的问题,研究了空气流量传感器、氧传感器、冷却液温度传感器失效对汽车燃油经济性的影响。空气流量传感器信号丢失中断后,中小负荷时发动机的油耗明显增多,大负荷时油耗基本相当;氧传感器信号丢失中断后,中小负荷的比油耗比氧传感器信号正常时小,冷却液温度传感器失效,混合气加浓,燃油消耗量增加。
Electronically controlled engine sensor fault diagnosis difficult problem studied air flow sensor, oxygen sensor, coolant temperature sensor failure impact on the automotive fuel economy. After the loss of air flow sensor signal interruption, when small load on the engine fuel consumption significantly increased fuel consumption when a large load is roughly equal; oxygen sensor signal is lost after the interruption, the specific fuel consumption of small loads smaller than normal oxygen sensor signal, coolant temperature sen- sor failure, mixture enriched fuel consumption increases.
出处
《交通节能与环保》
2013年第6期35-37,共3页
Transport Energy Conservation & Environmental Protection
关键词
发动机
元件
性能
模拟
engine
components
performance
simulation
作者简介
代洪（1968-），男，汉族，吉林公主岭人，教授，从事汽车电子控制方面的教学和研究工作。
