| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a lubricating oil consumption estimation device for an internal combustion engine capable of more accurately estimating consumption of lubricating oil and an exhaust emission control device capable of always accurately estimating ash accumulation quantity of DPF by using the lubricating oil consumption quantity estimation device. <P>SOLUTION: Instantaneous base oil consumption QOBS is calculated according to engine rotation speed NE and fuel injection quantity QINJ (S101), and collection coefficient K is calculated according to cooling water temperature TW (S102). Instantaneous oil consumption QOT is calculated by multiplying instantaneous base oil consumption QOBS by correction coefficient K (S103), and total oil consumption QOIL is calculated by integrating instantaneous oil consumption QOT(S104). Ash accumulation quantity GASH of the DPF 12 is calculated according to total oil consumption QOIL (S4). <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
