| 摘要 |
PROBLEM TO BE SOLVED: To precisely estimate a PM deposit amount deposited on a filter in an exhaust gas cleaning device at a low cost, in an engine which includes a supercharger, a sensor detecting the number of revolutions of the supercharger, and the exhaust gas cleaning device having the filter.SOLUTION: An engine includes: an engine speed sensor 61; an engine load sensor 62; a supercharger 40; a turbo sensor 63 detecting the number of revolutions of the supercharger; an exhaust gas cleaning device 50 having a filter 52 and interposed in an exhaust line 30; and a control device 70. The control device 70 has supercharger revolution data 71 specifying the supercharger reference number of revolutions according to the engine speed and an engine load and the regeneration control of the filter is carried out according to the reduction degree of a supercharger actually measured revolution detected by the turbo sensor to the supercharge reference revolution obtained by applying the detected value of the engine speed sensor and the engine load sensor to the supercharger revolution data. |
