Robert bosch gmbh (20240210280). METHOD AND DEVICE FOR MEASURING NITROGEN OXIDE AND AMMONIA EMISSIONS FROM AN EXHAUST GAS AFTERTREATMENT SYSTEM FOR COMBUSTION EXHAUST GASES simplified abstract
METHOD AND DEVICE FOR MEASURING NITROGEN OXIDE AND AMMONIA EMISSIONS FROM AN EXHAUST GAS AFTERTREATMENT SYSTEM FOR COMBUSTION EXHAUST GASES
Organization Name
Inventor(s)
Thomas Zein of Sindelfingen (DE)
Yunjie Lian of Markgroeningen (DE)
Gunther Kegel of Rutesheim (DE)
METHOD AND DEVICE FOR MEASURING NITROGEN OXIDE AND AMMONIA EMISSIONS FROM AN EXHAUST GAS AFTERTREATMENT SYSTEM FOR COMBUSTION EXHAUST GASES - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240210280 titled 'METHOD AND DEVICE FOR MEASURING NITROGEN OXIDE AND AMMONIA EMISSIONS FROM AN EXHAUST GAS AFTERTREATMENT SYSTEM FOR COMBUSTION EXHAUST GASES
The abstract describes a method for determining nitrogen oxide and ammonia emissions in the combustion exhaust gas of an engine system with an exhaust-gas-guided internal combustion engine using an output-side nitrogen oxide sensor that is cross-sensitive to ammonia.
- Detecting the measurement signal of the nitrogen oxide sensor
- Ascertaining a partial conversion indication for each catalytic converter segment based on local operating conditions using a conversion model
- Determining a conversion indication from multiple partial conversion indications
- Ascertaining nitrogen oxide and ammonia emissions based on the measurement signal and conversion indication
Potential Applications: - Automotive industry for emission control in internal combustion engines - Environmental monitoring for air quality assessment
Problems Solved: - Accurate measurement of nitrogen oxide and ammonia emissions - Optimization of catalytic converter performance
Benefits: - Improved emission control - Enhanced environmental protection - Efficient engine operation
Commercial Applications: Title: "Advanced Emission Control System for Internal Combustion Engines" This technology can be utilized in automotive manufacturing for developing more environmentally friendly vehicles and in emission testing facilities for compliance verification.
Prior Art: Readers can explore prior patents related to emission control systems in internal combustion engines, nitrogen oxide sensors, and catalytic converters.
Frequently Updated Research: Stay updated on advancements in emission control technologies, sensor development, and catalytic converter efficiency improvements.
Questions about the technology: 1. How does this method improve the accuracy of nitrogen oxide and ammonia emission measurements? 2. What are the key factors influencing the performance of the conversion model in determining emissions?
Original Abstract Submitted
a method for determining a nitrogen oxide emission and an ammonia emission in the combustion exhaust gas of an engine system having an exhaust-gas-guided internal combustion engine using an output-side nitrogen oxide sensor having a cross-sensitivity to ammonia. the method including: detecting a measurement signal of the nitrogen oxide sensor; ascertaining a partial conversion indication for each of multiple catalytic converter segments arranged in series in the combustion exhaust gas depending on local operating conditions with the aid of a provided conversion model that maps a local operating condition on the partial conversion indication; determining a conversion indication from the multiple partial conversion indications; and ascertaining a nitrogen oxide emission and an ammonia emission depending on the measurement signal and the conversion indication.
