Predictive Engine Control for NOx Emission Management
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Solution Overview
Problem
Existing engine control systems are reactive and may cause inconvenience and safety issues by disabling engines only after exhaust emissions exceed regulatory thresholds, failing to prevent excessive NOx emissions proactively.
Innovation Solution
A predictive engine control system that uses sensors to monitor current engine operation and computational models to forecast future performance, allowing for proactive derating of engine operation to prevent emission limits from being exceeded, even when within allowable ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a reactive engine control system disables the engine only after emissions exceed regulatory thresholds, then the engine can operate at full capacity without unnecessary restrictions, but excessive NOx emissions are expelled to the environment and the vehicle may become stranded
Solution Approach 1:
The controller performs preliminary actions by predicting future emissions levels before they exceed regulatory thresholds. When the predicted emissions indicate that the threshold will be exceeded, the controller proactively derates the engine operation in advance, preventing excessive NOx emissions while maintaining productivity. This is achieved through continuous monitoring of engine operating parameters and using predictive algorithms to forecast future emissions trends.
2Object-generated harmful factors
If the engine is disabled after emissions exceed the threshold, then excessive NOx emissions are prevented, but the vehicle becomes inconveniently stranded and safety issues arise
Solution Approach 1:
The system takes preliminary action by derating engine operation before emissions exceed regulatory thresholds. This proactive approach prevents the engine from being disabled entirely, thereby avoiding vehicle stranding and safety issues while still preventing excessive NOx emissions. The controller continuously monitors engine parameters and predicts future emissions, allowing operators to address issues before the engine needs to be shut down.
3Device complexity
If a reactive control system waits for emissions to exceed thresholds before acting, then the control logic is simpler, but the system only responds after limits are exceeded rather than preventing them
Solution Approach 1:
The controller performs preliminary actions by predicting future emissions levels and derating engine operation in advance before regulatory thresholds are exceeded. This proactive approach ensures emissions compliance by preventing threshold violations rather than reacting after they occur. The system maintains reliability through continuous monitoring of engine operating parameters and using predictive algorithms to forecast emissions trends, allowing preventive derating decisions to be made before compliance issues arise.
Data Source
AI summary
A prediction based engine control system is disclosed. The engine control system may have sensor configured to sense a current engine operation and generate a corresponding signal and a controller in communication with the sensor. The controller may be configured to receive the signal, compare the current engine operation to an allowable range of engine operation, predict a future engine operation based on the signal, and limit current engine operation based on the prediction, even when the current engine operation is within the allowable range of operation.