| 摘要 |
PROBLEM TO BE SOLVED: To suitably suppress oil dilution due to fuel and suitably suppress the worsening of the degree of fastness of a variable nozzle mechanism.SOLUTION: An electronic control device 9 executes at least either the supply of fuel by an addition valve 72 or the supply of the fuel by post injection when the conditions of executing the regeneration control of a filter 82 are established, to perform regeneration control of the filter 82. The electronic control device 9 determines the degree of fastness of a variable nozzle mechanism 43 on the basis of a current value A for a motor 45 to drive a nozzle vane 44 when changing the opening of the nozzle vane, and prohibits the supply of the fuel by the post injection and allows the supply of the fuel by the addition valve 72 when the degree of fastness of the variable nozzle mechanism 43 is lower than a reference degree. The electronic control device 9 prohibits the supply of the fuel by the addition valve 72 and allows the supply of the fuel by the post injection when the degree of fastness of the variable nozzle mechanism 43 is not lower than the reference degree. |
