| 摘要 |
A particulate filter ( 41 ) which traps particulate matter in the exhaust gas of a diesel engine ( 1 ), regenerates when a controller ( 31 ) performs an exhaust gas increase operation which includes decreasing the opening of an intake throttle ( 42 ). The controller ( 31 ), during regeneration of the filter ( 41 ), determines whether or not the required load of the diesel engine ( 1 ) is increasing from an accelerator pedal depression sensor ( 32 ) or a fuel injection amount (S 3 ), and prevents output decrease of the diesel engine ( 1 ) by interrupting the exhaust gas temperature increase operation when the required load is increasing (S 5 ).
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