DPF regeneration control device, DPF regeneration control method, and DPF regeneration support system
US8919105B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2011 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Jul 10, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2560/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A DPF regeneration control device includes: a differential pressure sensor which detects a differential pressure between a front and a rear of a DPF; a DPF differential pressure setting unit which sets a DPF differential pressure generated in accordance with a total accumulated amount of soot and ash, sets a DPF differential pressure generated when an ash accumulation amount corresponds to an accumulation amount at which washing is required, as a washing request threshold, and sets a DPF differential pressure generated when the ash accumulation amount is larger than the washing request threshold such that a reduction in output is necessary, as an output reduction threshold; a washing request issuing unit which determines whether or not the DPF differential pressure has reached the washing request threshold; and an output reduction warning unit which determines whether or not the DPF differential pressure has reached the output reduction threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.