Reductant injector temperature model based on coil resistance
US9194269B2 · kind B2 · utility
3Cited by
1References
16Claims
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Key dates
| Filing date | Apr 24, 2014 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Jun 17, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method includes receiving, at a controller having one or more processors, one or more measured parameters, each measured parameter related to a temperature that affects a temperature of a reductant injector of an exhaust system of an engine. The method includes determining a resistance of a coil of the reductant injector. The method includes estimating the temperature of the reductant injector based on (i) the one or more measured parameters and (ii) the coil resistance. The method also includes controlling a duty cycle of the reductant injector based on the estimated temperature of the reductant injector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.