Patent ID: 6672050
Filing Date: 2004-01-06
Classification: B60K,B60L,B60W,F02D,F02M,Y02T

Abstract:
An exhaust gas purification device of an internal combustion engine in which a particulate filter for trapping particulate in an exhaust gas is arranged in an engine exhaust passage, deposited particulate on the particulate filter can be continuously removed by oxidation without being accompanied by occurrence of a luminous flame when performing continuous combustion under a lean air-flow ratio, and a continuous oxidation removal region of the deposited particulate is determined by a temperature of the particulate filter and an amount of exhausted particulate exhausted from the engine, wherein an electric power device able to generate vehicle drive power separate from the vehicle drive power of the engine and able to generate electric power from the engine is provided and a battery for supplying electric power for driving the vehicle to the electric power device and for being charged by the electric power generated by the electric power device is provided; and, after the particulate filter finishes being warmed up at the time of engine startup, when the temperature of the particulate filter falls below a temperature at which deposited particulate can be continuously removed by oxidation, an output torque of the engine is increased from a required torque so that the temperature of the particulate filter becomes a temperature at which deposited particulate can be continuously removed by oxidation and the amount of increase in output torque is consumed for the power generating action by the electric power device.