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Reduction of cold-start emissions and catalyst warm-up time with direct fuel injection
Reduction of cold-start emissions and catalyst warm-up time with direct fuel injection
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机译:通过直接燃油喷射减少冷启动排放和催化剂预热时间
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摘要
An internal combustion engine employs fuel injectors positioned to inject fuel directly into combustion chambers of the engine, and an electronic engine controller (EEC) to control operation of the engine. The EEC implements a cold start routine which controls the amount of fuel injected, the time at which the fuel is injected and spark timing to achieve a rapid increase in temperature of the engine and the exhaust system components, thereby decreasing tailpipe hydrocarbon emissions during cold start.
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