摘要 |
<p>An exhaust gas recirculation (EGR) control method and unit for an internal combustion engine includes an EGR passage (9) configured to recirculate a portion of exhaust gas from an exhaust system (8) to an intake system (5). An EGR valve (10), disposed in the EGR passage (9), is configured to control an amount of EGR, and a calculator is configured to calculate a surge-increase index according to a variance in rotation of the engine (1). A detector is configured to compare the surge-increase index with a determination threshold to detect a surge increase, a corrector is configured to calculate a correction value according to an output of the detector, and an adjuster is configured to adjust the correction value.
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