| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust gas purifying device which regenerates a DPF (particulate substance collection means) arranged in each of a plurality of exhaust systems while reducing dispersion among respective exhaust systems, and a control method thereof. <P>SOLUTION: In the exhaust gas purifying device 101 including DPFs 12a and 12b for performing PM regeneration simultaneously by supplying fuel to the upstream sides of them, an ECU 50 sets a target bed temperature for the purpose of raising the temperature of the DPFs 12a and 12b during PM regeneration, and controls the fuel supplied to the upstream sides of the DPFs 12a and 12b in response to the set target bed temperature. The ECU 50 detects parameter values relating to the DPFs 12a and 12b, and compares the detected parameter values with a temperature rise condition for raising the target bed temperature. Upon determination that the parameter values in both the DPFs 12a and 12b satisfy the temperature rise condition, the ECU 50 resets a new target bed temperature by raising the target bed temperature set for both the DPFs 12a and 12b. <P>COPYRIGHT: (C)2012,JPO&INPIT |
