Current Sensorless Direct Voltage Control of Surface Mounted Permanent Magnet Synchronous Motor Driven Electric Vehicles
Bibliographic record
Abstract
Fast and accurate response, quick recovery from various disturbances, simplicity, reliability, and cost-effectiveness are essential features of an efficient motor drive system for electric vehicles (EVs). Thus, this paper introduces a simple current sensorless direct voltage control scheme for a surface-mounted permanent magnet synchronous motor (SPMSM) propelling an EV. The designed method provides a promising alternative to cascaded-based control strategies, such as field-oriented control (FOC), by directly varying the amplitude and angle of the voltage vector while excluding measurements of current and inner regulation loops. Such a methodology drastically reduces the complexity and tuning time of the control system and mitigates the delays resulting from cascaded control schemes. It also ensures better reliability since it does not require current sensors. The performance of the developed strategy is investigated using commonly adopted driving cycles, namely the Federal Test Procedure (FTP75) and the World Harmonized Light Vehicles Test Procedure (WLTP). An intensive comparison against FOC is established based on the driving cycles employed.
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How this classification was reachedexpand
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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".