Throttle bypass turbine with exhaust gas recirculation

An internal combustion engine, comprising:

• an intake passage;
• an exhaust gas recirculation passage configured to route at least a portion of exhaust gas to the intake passage;
• a throttle bypass coupled to the intake passage at an inlet and to the exhaust gas recirculation passage at an outlet, the throttle bypass including a turbine;
• and
• a heat exchanger positioned in the exhaust gas recirculation passage downstream of the throttle bypass outlet and expelling the portion of the exhaust gas and outlet gas from the turbine.

A method of operating a throttle bypass turbine, comprising:

• routing outlet gas flowing out of the throttle bypass turbine through an exhaust gas recirculation heat exchanger positioned in an exhaust gas recirculation passage, the throttle bypass turbine coupled to an intake passage;
• determining one or both of a dew point and an icing point at which condensation and ice respectively form in the intake passage;
• and
• adjusting one or more engine operating parameters in response to the determination, wherein the one or more engine operating parameters include an intake throttle position, wherein the intake throttle is configured to modulate gas flow through the throttle bypass turbine, the throttle bypass turbine located in a throttle bypass, an inlet of the throttle bypass being in fluidic communication with the intake passage, an outlet of the throttle bypass being in fluidic communication with the exhaust gas recirculation passage.