초록 ▼

A particulate filter (PF) ash loading prediction method includes the steps of: regenerating the PF using a first soot loading prediction model or a second soot loading prediction model; determining whether the regeneration of the PF was initiated by the first soot loading prediction model or the sec

A particulate filter (PF) ash loading prediction method includes the steps of: regenerating the PF using a first soot loading prediction model or a second soot loading prediction model; determining whether the regeneration of the PF was initiated by the first soot loading prediction model or the second soot loading prediction model; incrementing a first counter associated with the first soot loading prediction model or a second counter associated with the second soot loading prediction model, dependent on the determining step; comparing a ratio of the first counter and the second counter; and establishing whether the PF requires servicing, dependent on the ratio.

대표청구항 ▼

1. A particulate filter (PF) ash loading prediction method, comprising the steps of: regenerating the PF using a first soot loading prediction model or a second soot loading prediction model;determining whether the regeneration of the PF was initiated by the first soot loading prediction model or th

1. A particulate filter (PF) ash loading prediction method, comprising the steps of: regenerating the PF using a first soot loading prediction model or a second soot loading prediction model;determining whether the regeneration of the PF was initiated by the first soot loading prediction model or the second soot loading prediction model;incrementing a first counter associated with said first soot loading prediction model or a second counter associated with said second soot loading prediction model, dependent on said determining step;comparing a ratio of said first counter and said second counter; andestablishing whether said PF requires servicing, dependent on said ratio. 2. The ash loading prediction method of claim 1, wherein said establishing step includes comparing said ratio with a value of a limit assigned to said ratio. 3. The ash loading prediction method of claim 1, wherein said incrementing step includes incrementing said first counter or said second counter by a value of one (1). 4. The ash loading prediction method of claim 1, wherein said establishing step includes using said ratio as in input value to a lookup table. 5. The ash loading prediction method of claim 4, wherein said lookup table is a two-dimensional lookup table. 6. The ash loading prediction method of claim 1, wherein said servicing of said PF includes replacing said PF. 7. The ash loading prediction method of claim 1, wherein said first soot loading prediction model utilizes a pressure differential across said PF. 8. The ash loading prediction method of claim 7, wherein said first soot loading prediction model utilizes equations from standard SAE 2002-01-1015. 9. The ash loading prediction method of claim 1, wherein said second soot loading prediction model is not based upon a pressure differential across said PF. 10. A vehicle, comprising: an internal combustion engine;a particulate filter (PF) connected to said internal combustion engine;a controller operatively connected to said internal combustion engine and to said particulate filter, said controller being configured to execute the steps of a method, the method including the steps of:regenerating the PF using a first soot loading prediction model or a second soot loading prediction model;determining whether the regeneration of the PF was initiated by the first soot loading prediction model or the second soot loading prediction model;incrementing a first counter associated with said first soot loading prediction model or a second counter associated with said second soot loading prediction model, dependent on said determining step;comparing a ratio of said first counter and said second counter; andestablishing whether said PF requires servicing, dependent on said ratio. 11. The vehicle of claim 10, wherein said establishing step includes comparing said ratio with a value of a limit assigned to said ratio. 12. The vehicle of claim 10, wherein said incrementing step includes incrementing said first counter or said second counter by a value of one (1). 13. The vehicle of claim 10, wherein said establishing step includes using said ratio as in input value to a lookup table. 14. The vehicle of claim 13, wherein said lookup table is a two-dimensional lookup table. 15. The vehicle of claim 10, wherein said servicing of said PF includes replacing said PF. 16. The vehicle of claim 10, wherein said first soot loading prediction model utilizes a pressure differential across said PF. 17. The vehicle of claim 16, wherein said first soot loading prediction model utilizes equations from standard SAE 2002-01-1015. 18. The vehicle of claim 10, wherein said second soot loading prediction model is not based upon a pressure differential across said PF.