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Fuel Managment System for Variable Ethanol Octane Enhancement of Gasoline Engines
Fuel Managment System for Variable Ethanol Octane Enhancement of Gasoline Engines
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机译:汽油发动机可变乙醇辛烷值提高的燃料管理系统
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摘要
Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as to control knock and minimize that amount of the anti-knock agent that is used in a drive cycle. It is preferred that the anti-knock agent is ethanol. The use of ethanol can be further minimized by injection in a non-uniform manner within a cylinder. The ethanol injection suppresses knock so that higher compression ratio and/or engine downsizing from increased turbocharging or supercharging can be used to increase the efficiency of the engine.
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