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Electric Powertrain Efficiency Improvement for Autonomous Vehicles Using Genetic Algorithms for Optimized Speed Profile Creation

2022· article· en· W4312096262 on OpenAlexaff
Claudio Hartkopf Lopes Filho, Marco Veliz Castro, Ze Li, Jimi Tjong, Narayan C. Kar

Bibliographic record

Venue2022 25th International Conference on Electrical Machines and Systems (ICEMS) · 2022
Typearticle
Languageen
FieldEngineering
TopicElectric Vehicles and Infrastructure
Canadian institutionsUniversity of Windsor
Fundersnot available
KeywordsJerkAccelerationPowertrainControl theory (sociology)Electric motorGenetic algorithmElectric vehicleAutomotive engineeringComputer scienceConstant (computer programming)EngineeringSimulationTorquePower (physics)PhysicsElectrical engineeringArtificial intelligence

Abstract

fetched live from OpenAlex

In this paper, a novel method is proposed to improve the electric motor efficiency of autonomous electric vehicles with a single electric motor and single gear (IMIG) by controlling the vehicle’s speed profile during speed changes and maintaining acceptable ride comfort levels by limiting jerk during acceleration and deceleration. The Bezier curve method was used to create smooth speed profiles between different speeds, and a genetic algorithm (GA) optimization approach was used to find the optimal set of parameters for high efficiency, low jerk and high average speed. Comparison with the constant jerk - constant acceleration (CJ-CA) method shows a noticeable improvement in motor efficiency when running an urban drive speed profile. This was achieved by increasing the overall motor efficiency during acceleration and energy recovering during deceleration.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.701
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.021
GPT teacher head0.271
Teacher spread0.250 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designSimulation or modeling
Domainnot available
GenreEmpirical

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".

Quick stats

Citations1
Published2022
Admission routes1
Has abstractyes

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