| 摘要 |
<p>PURPOSE: To judge filter regeneration timing stably even in the row rotation area of an internal combustion engine without measuring the lower reaches side pressure of the filter of a particulate collecting trap device of extremely low pressure in the particulate collecting trap device for the internal combustion engine. CONSTITUTION: An exhaust particulate collecting trap regenerating device for an internal combustion engine has a pressure sensor 6 for detecting exhaust pressure (Pm) at or near the exhaust manifold of the internal combustion engine, and a pressure sensor 7 for detecting the pressure (Pf) of the inlet of the filter 5 of an exhaust particulate collecting trap device 4. An operation expression Pf/(Pm-Pf) is computed using each pressure detected by the pressure sensors 6, 1. In the case of the computed result exceeding the specified value, the filter 5 of the exhaust particulate collecting trap device 4 is put in regenerating action. Or an operation expression Pf/(Pm-Pf) is computed using each pressure detected by the pressure sensors 6, 7 so as to detect the particulate collecting quantity of the filter 5 of the exhaust particulate collecting trap device 4.</p> |
