| 摘要 |
PROBLEM TO BE SOLVED: To rationalize a fuel injection timing and fuel injection amount, in a diesel engine provided with an engine cooling water temperature increase promoting means, such as a heat accumulator, to introduce a part of high temperature cooling water from an engine cooling system and store it in a heat storing state for early warming up and feed cooling water, stored during starting of an engine, to an engine cooling system. SOLUTION: A main injection timing lead angle amountΔIT is set according to a cooling water temperature Tw (110). A main injection amount increase fundamental valueΔqf0 is set according to a lubrication oil temperature Tr (120). Further, A pilot injection time and a pilot injection amount are set according to a cooling water temperature Tw (140). When a difference between the cooling water temperature Tw and the lubrication oil temperature Tr exceeds a given value TO, a correction factor a for the main injection amount increase fundamental valueΔQfO is set according to the main injection timing lead angleΔIT when a difference between the cooling water temperature Tw and the lubrication oil temperature Tr exceeds a given value TO, and a main injection amount increase valueΔQf=ΔQfO×αis determined (150-200).
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