CONTROL DEVICE FOR DIESEL ENGINE
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United States of America Patent
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Jun 16, 2017
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Jun 24, 2016
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Abstract
When a diesel engine is determined to be in a motoring state, a hysteresis zero angle H0 is determined (step S14). Subsequently, a gradient dn is calculated (step S16). The gradient dn is calculated based on data (θn, Δhn) of a deviation Δhn at a retardation side from the hysteresis zero angle H0 and at an advance side from a predetermined crank angle. Subsequently, the gradient dn and the hysteresis zero angle H0 are updated (step S18). When the diesel engine is determined to be in a non-motoring state, data (θn, Pn) of an actual in-cylinder pressure is corrected based on a newest correction coefficient η and hysteresis zero angle H0 (step S22).
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