EXHAUST GAS PURIFICATION SYSTEM
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Accused Products
Abstract
An exhaust gas purification system with which a frequency of diesel particulate filter (“DPF”) regeneration requests can be reduced during long low idle regeneration, thereby improving convenience, including a control unit that performs regeneration control on a DPF provided at an exhaust pipe of an engine. The control unit includes a particulate matter (“PM”) accumulation amount predictor for predicting the amount of PM accumulated by calculating a cumulated value of the PM in an idling state. The control unit starts calculating the cumulated value of the PM by the PM accumulation amount predictor after a first predetermined time has elapsed since a detection of the idling state.
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Citations
10 Claims
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1-4. -4. (canceled)
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5. An exhaust gas purification system comprising a control unit for performing regeneration control on a diesel particulate filter that is provided to an exhaust pipe of an engine,
characterized in that the control unit includes PM accumulation amount predicting means for predicting an amount of PM accumulated by calculating a cumulated value of the PM in an idling state and starts calculating the cumulated value of the PM by using the PM accumulation amount predicting means after a first predetermined time has elapsed since the detection of the idling state.
Specification