Patent ID: 8656707

Claim:
A diesel engine in which a diesel particulate filter collecting particle matters in exhaust gas is provided, comprising: an electronic controller preparing a control signal to perform a selected mode so as to control the diesel engine, wherein the electronic controller is configured to: select one of a low fuel consumption mode in which fuel consumption of the diesel engine is reduced by generating high combustion pressure at a predetermined timing in a combustion chamber of an engine main body and a low noise mode in which noise of the diesel engine is reduced by generating a comparatively lower combustion pressure for a comparatively longer time than those of the low fuel consumption mode in the combustion chamber of the engine main body, automatically select a continuous regeneration mode, although the low fuel consumption mode or the low noise mode has been selected, when an output of the diesel engine is higher than a predetermined value, such that when the accumulated amount of the particle matters collected in the diesel particulate filter is not less than a predetermined value, the continuous regeneration mode is selected automatically so as to make the oxidized amount of the particle matters equal to the collected amount, automatically select a forced regeneration mode, although the low fuel consumption mode or the low noise mode has been selected, when an output of the diesel engine is lower than the predetermined value, such that when the accumulated amount of the particle maters collected in the diesel particulate filter is not less than the predetermined value, the forced regeneration mode is selected automatically so as to make the oxidized amount of the particle matters larger than the collected amount, and perform the continuous regeneration mode or the forced regeneration mode when the respective mode is selected manually.