热线式空气流量计

汽车燃油喷射系统热线式空气流量计故障检修

Troubles shooting of hot-wire type air flowmeter in fuel injection system of cars

汽车热线式空气流量计故障分析与检测

The Failure Diagnosis of MAF Sensor on Motor

介绍了热线式空气流量计的基本原理，分析了恒流和恒温2种工作方式下测量电路的设计方法，推导出了2种工作方式的流量方程。

The principle of the hot-wire air flow sensor is introduced here , the design for measurement circuit at constant current and constant temperature are expounded , the flow equations have been derived out .

研究了温度补偿方法和测量结果的处理方法，对所设计的热线式空气流量计进行了标定及输出结果的拟合，结果表明热线式空气流量计能够进行空气流量的精确测量。

Temperature compensation and processing method for outputs are discussed , a fitting formula for the designed sensor is provided , the result show that the hot-wire air flow sensor can accurately measure the mass flow of air .

针对汽车发动机电子控制汽油喷射系统热线式空气流量计的结构特点，提出故障判断和相应检修方法，以及在检修中电脑故障代码的人工读取方法。

Aimed at the structure features of electronically controlling hot-wire type air flowmeter in fuel injection system of a car engine , the troubleshooting , overhauling methods and the reading of trouble codes of computer in overhauling are propounded .