Methods and systems for boost control
Abstract:
Methods and systems are provided for pressure control in a boosted engine system. A variable geometry turbine (VGT) geometry, and/or wastegate (WG), and/or an exhaust gas recirculation (EGR) valve opening is adjusted at least based on a difference between the exhaust pressure and an intake pressure in order to reduce the difference between exhaust and intake manifold pressures, thereby reducing pumping work losses.
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