| 摘要 |
Various systems and methods are described for controlling a dual-fuel engine that has an evaporated gas providing device for providing an evaporated gas into the engine and is operable with hydrocarbon fuel or non-hydrocarbon fuel, alternatively. One example method comprises operating the engine with one of the fuels on the basis of a driver's request, and in response to a determination of a cold engine operation, operating the engine with the non-hydrocarbon fuel for a specified period irrespective of the driver's request. If it is determined that an evaporated fuel is to be provided to the engine while the engine is operating with non-hydrocarbon fuel due the cold engine operation, then switching to operation with hydrocarbon fuel and thereafter providing evaporated fuel into the engine.
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