Transient Temperature Estimation for Active-Flow Aftertreatment Control
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Diesel exhaust temperatures vary with engine load and speed thereby affecting the thermal behavior and thus performance of exhaust after-treatment systems. The determination of the transient temperature is needed to enable active-flow control after-treatment schemes that include parallel alternating flow, partial restricting flow, periodic flow reversal, and extended flow stagnation. The active schemes are found to be especially effective to treat engine exhausts that are difficult to cope with conventional passive-flow converters, by shifting the exhaust gas temperature, flow rate, and oxygen concentration to more favorable windows for the filtration, conversion, and regeneration processes. This paper reports a thermal-response model that uses the temperature data obtained with two high-inertia thermocouples of different sizes to estimate the diesel engine transient exhaust gas temperature. The thermal inertial difference of the two thermocouples is critical in predicting the transient temperature through a mathematical procedure. To validate the model, the exhaust gas temperature was simultaneously measured with a third thermocouple of high sensitivity that acquired temperature data approximating the real-time value.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it