Patent ID: 9097176
Filing Date: 2015-08-04
Classification: F01N,F02B,F02D,Y02T

Abstract:
1. A turbocharging control apparatus configured to control operation of a turbocharger having a compressor disposed on an intake passage of an internal combustion engine and a turbine disposed on an exhaust passage of the internal combustion engine, comprising: a bypass passage connecting an upstream side and a downstream side of the turbine in the exhaust passage together; a wastegate valve disposed on the bypass passage, wherein the wastegate value is configured to open and close the bypass passage according to turbocharging pressure of the compressor; an accumulator connected to a downstream side of the wastegate valve in the bypass passage, wherein the accumulator is configured to accumulate exhaust gas pressure; a recirculation passage connecting the accumulator and an upstream side of the turbine; and a recirculation valve disposed on the recirculation passage, wherein the recirculation valve opens and closes the recirculation passage in accordance with an output request.