CONFIGURATION DESIGN OF SIX-SPEED AUTOMATIC TRANSMISSIONS WITH TWO-DEGREE-OF-FREEDOM PLANETARY GEAR TRAINS
Why this work is in the frame
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Bibliographic record
Abstract
A methodology is proposed herein to search for and synthesize feasible configurations of six-speed automatic transmissions based on planetary gear trains with two degrees of freedom. A screening rule is first proposed to search for workable two-degree-of-freedom planetary gear trains for six-speed automatic transmissions. Based on the requirement of clutch-to-clutch shifts, a new algorithm to classify and permute speed ratios for feasible clutching sequences is presented. Six feasible configurations of six-speed automatic transmissions are found using the proposed methodology. By using an exhaustive search method, the ten best combinations of the number of gear teeth for a specific planetary gear train are then obtained to minimize the differences between the set of desired speed ratios and that of speed ratios generated algorithmically. Finally, the mechanical efficiencies of the ten planetary gear trains are calculated for evaluation.
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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