Method and apparatus for operating an internal combustion engine employing first and second EGR flowpaths

• Main Authors: RODIO, ANTONIO, MOGAVERO, ARMANDO
• Format: Patent
• Language: Chinese; English
• Published: 29.06.2018
• Subjects: BLASTING; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

An internal combustion engine system includes a first EGR valve to control flow in a first flow path, and a second EGR valve to control flow in a second flow path. A temperature sensor is disposed inthe exhaust gas feedstream upstream of the exhaust purifying device, and a controller is in communication with the internal combustion engine and the temperature sensor and is operatively connected tothe first and second EGR valves. The controller executes a routine to monitor the temperature of the exhaust gas feedstream upstream of the exhaust purifying device and control the first valve to control flow of exhaust gas to the air intake system via the first flow path and control the second valve to control flow of exhaust gas to the air intake system via the second flow path based upon the temperature of the exhaust gas feedstream upstream of the exhaust purifying device. 内燃机系统包括用于控制第流动路径中的流量的第EGR阀以及用于控制第二流动路径中的流量的第二EGR阀。温度传感器设置在排气净化装置上游的废气供给流中，且控制器与内燃机和温度传感器通信并且可操作地连接至第EGR阀和第二EGR阀。该控制器执行例程以监测排气净化装置上游的废气供给流的温度，并且