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METHOD FOR EVALUATING AN ERROR ERROR OF THE CAMSHAFT CAM (OPTIONS) AND ENGINE CONTROL SYSTEM
METHOD FOR EVALUATING AN ERROR ERROR OF THE CAMSHAFT CAM (OPTIONS) AND ENGINE CONTROL SYSTEM
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机译:凸轮轴凸轮(选装件)误差误差的评估方法和发动机控制系统
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摘要
Methods and systems for correcting cam angle measurements for engine-to-engine build variation are disclosed. In one example, a method comprises learning cam angle corrections to update a measured cam angle responsive to air-fuel ratio errors during selected conditions, and learning air and fueling errors responsive to the air-fuel ratio error otherwise. In this way, cam angle errors due to engine build variation may be corrected, thereby improving other air and fuel adaptation methods and improving engine emissions.
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