Supercharger Control Device for Internal Combustion Engine

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 an accumulation passage in accordance with an output request.