| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a regenerative control method for an NOx-PM simultaneous reduction device in which regeneration efficiency is increased and a CPF carrier is prevented from being damaged and an NT catalyst is prevented from being degraded and the NOx-PM simultaneous reduction device. <P>SOLUTION: This regenerative control device of the NOx-PM simultaneous reduction device 100 comprises a first exhaust temperature sensor 120 detecting the temperature of the exhaust gases from an engine 160, a second exhaust temperature sensor 125 detecting the temperature of the exhaust gases flowing in the NOx-PM simultaneous reduction device between an LNT and a CPF, a CPF internal temperature sensor 130 detecting the internal temperature of the CPF, a pressure differential sensor 135 measuring the pressure difference between the front and rear of the NOx-PM simultaneous reduction device, an oxygen sensor 140 detecting the oxygen concentration of the exhaust gases from the engine, a nitrogen oxide sensor (NOx sensor) 45 detecting the nitrogen oxide concentration of the exhaust gases, and a control unit controlling the regeneration of the NOx-PM simultaneous reduction device according to the signals received by the sensors. The control unit performs a series of commands for performing the regenerative control method for the NOx-PM simultaneous reduction device. <P>COPYRIGHT: (C)2007,JPO&INPIT |
