METHODS AND SYSTEMS FOR BOOST CONTROL

摘要

Methods are provided for improving boost pressure control in a boosted engine system. In one example, during a tip-in, an air bypass coupled across an intake compressor of the engine system may be kept open for a predetermined time. Keeping the air bypass open during tip-in enables the compressor to spin faster, and this faster speeds may translate into reaching a desired higher boost when the air bypass is subsequently closed in less time than heretofore possible.

主权项

1. A method comprising:
in response to an operator demand for additional torque from an engine, opening an air bypass around an air compressor which supplies air to said engine; and keeping said air bypass opened for a predetermined time and then closing said air bypass.