METHOD OF OPERATING AN INTERNAL COMBUSTION ENGINE HAVING A TURBOCHARGER

Disclosed is a method of operating an internal combustion engine 110 equipped with a turbocharger 230 and an exhaust gas recirculation pipe 500 fluidly connecting an exhaust gas line 275 to an air intake duct 205 upstream of a compressor 240 of the turbocharger 230. The method comprises the steps of determining a value of a parameter indicative of a temperature of an exhaust gas and actuating an internal recirculation strategy of the exhaust gas, if the determined temperature is lower than a predetermined threshold. The internal exhaust gas recirculation strategy comprises the steps of interrupting a flow of exhaust gas through the exhaust gas recirculation pipe 500 and opening an exhaust valve 215'' during an intake stroke of a piston 140 of the internal combustion engine 110. 本发明公开了种操作内燃发动机(110)的方法，所述内燃发动机配备有涡轮增压器(230)和排气再循环管道(500)，该排气再循环管流体地连接排气管线(275)到涡轮增压器(230)的压缩机(240)上游的进气道(205)，所述方法包括步骤：-确定指示排气的温度的参数的值；如果所确定的值低于其预定阈值，则启用排气的内部再循环策略，其中，所述内部再循环策略包括步骤：中断排气通过排气再循环管(500)的流动，以及在内燃发动机(110)的活塞(140)的进气冲程期间打开排气阀