English to French Tech/Engineering Engineering (general) (in a patent) direct injection diesel engine

The control apparatus to avoid a worsening of soot for the direct injection diesel engine as claimed in either claim 1 or 2, wherein the control apparatus (S5, S6, S16, S17) inhibits the after-injection when the injection timing of the after-injection after the correcting is more retardation angle side than a threshold value (ITIim).

Threshold value IT lim indicating the limit of the retardation angle side of the injection timing of the after-injection is set on a basis of the engine driving condition (for example, gross injection quantity Q, revolution speed Ne, water temperature Tw, and 15 so forth). This is, mainly, determined from viewpoints of fuel consumption and oil dilution according to the after-injection.