By analysis to the structure and function of the three-way catalytic converter as well as the factors affecting its normal work,several attention points are derived to ensure convenient operation of the converter.

The injectors' flow-rate of all test vehicles that each was fixed with a three-way catalytic converter(TWC) and Electronic Fuel Injection System(EFI) was tested including before and after vehicles operated on unleaded and ethanol gasoline respectively running for a long time on real road.

A study on applied technology of three-way catalytic converter with rare earth;

Oxygen sensor is a key component which affects the purification for three-way catalytic converter.

But charge efficiency decreases when back pressure of exhaust increases because of the pressure loss in three-way catalytic converter (TWC).

By the test of engine platform,the mathematic models on temperature contrast loading based on the loading of three-way catalyst and the warming up characteristics of speed temperature,can be used for supervision of working efficiency of three-way catalyst.

It has been proved that using electric-control fuel-injection gasoline engine and three-way catalyst was the main method to control automobile emission.

With regulations on vehicle exhausts become increasingly strict, development and application of the three-way catalytic converter has become the fundamental approach to control vehicle emissions.

Along with the automobile emissiong regulationg increasingly strict,the three-way catalytic converter development and applications have become the basic path that contolled automobile emissiong.