A vehicle has an engine, a fuel tank, and a controller configured to selectively operate the engine, during one or more drive cycles, until a specified fraction of fuel from the tank has been consumed in response to expiration of a predefined time period to limit fuel degradation. A powertrain system has a traction battery, an engine, a fuel tank, and a controller configured to selectively operate the engine in response to a quality of fuel in the tank being below a threshold until a specified fraction of fuel has been consumed, thereby limiting fuel degradation. A method of controlling a vehicle includes, in response to expiration of a predefined time period, selectively operating an engine, during one or more vehicle drive cycles, such that state of charge of a traction battery is generally maintained until a specified fraction of fuel in a fuel tank has been consumed to limit degradation of the fuel.
Fuel maintenance monitor for a plug-in hybrid vehicle
2017-04-18
Patent
Electronic Resource
English
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