An automation system for vehicle driveability evaluation using machine learning

The drivability is one of the important aspects of vehicle dynamic performances. To ensure quality of the drivability performance, comprehensive screening evaluation is necessary by controlling both complicated driver operation and vehicle behavior. However, it is not straightforward for engineers t...

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Main Authors: Hisashi TAJIMA, Kohei SHINTANI, Azuki OGOSHI, Shota KITANO, Motofumi IWATA
Format: Article
Language:Japanese
Published: The Japan Society of Mechanical Engineers 2022-10-01
Series:Nihon Kikai Gakkai ronbunshu
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/transjsme/88/915/88_22-00219/_pdf/-char/en
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author Hisashi TAJIMA
Kohei SHINTANI
Azuki OGOSHI
Shota KITANO
Motofumi IWATA
author_facet Hisashi TAJIMA
Kohei SHINTANI
Azuki OGOSHI
Shota KITANO
Motofumi IWATA
author_sort Hisashi TAJIMA
collection DOAJ
description The drivability is one of the important aspects of vehicle dynamic performances. To ensure quality of the drivability performance, comprehensive screening evaluation is necessary by controlling both complicated driver operation and vehicle behavior. However, it is not straightforward for engineers to handle all combinations of test patterns with limited resources while considering complex control logic and program carefully. This paper proposes a novel automated drivability screening and exploration system by introducing Bayesian active learning (BAL). The proposed system is composed of two key elements such as automated evaluation sub-system and screening and exploring sub-system. In the automated evaluation sub-system, driver model is used to mimic various operation patters of expert drivers and corresponded drivability performance is evaluated automatically using Power-Train Virtual and Real Simulator (PT-VRS). The automated exploring sub-system is used to screen severe condition for drivability and explore feasible region of design space described by control parameters. An effective sampling strategy is introduced based on BAL. In the BAL, Gaussian Process models of drivability performance evaluated by PT-VARS is trained. Based on the posterior distributions of trained Gaussian Processes models, acquisition functions are evaluated and maximized to generate new sampling points. To show effectiveness of the proposed system, an example is demonstrated.
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spelling doaj.art-aafe653d30ed476bbfed06580183018b2022-12-22T02:55:31ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612022-10-018891522-0021922-0021910.1299/transjsme.22-00219transjsmeAn automation system for vehicle driveability evaluation using machine learningHisashi TAJIMA0Kohei SHINTANI1Azuki OGOSHI2Shota KITANO3Motofumi IWATA4Toyota Motor CorporationToyota Motor CorporationToyota Motor CorporationToyota Motor CorporationToyota Motor CorporationThe drivability is one of the important aspects of vehicle dynamic performances. To ensure quality of the drivability performance, comprehensive screening evaluation is necessary by controlling both complicated driver operation and vehicle behavior. However, it is not straightforward for engineers to handle all combinations of test patterns with limited resources while considering complex control logic and program carefully. This paper proposes a novel automated drivability screening and exploration system by introducing Bayesian active learning (BAL). The proposed system is composed of two key elements such as automated evaluation sub-system and screening and exploring sub-system. In the automated evaluation sub-system, driver model is used to mimic various operation patters of expert drivers and corresponded drivability performance is evaluated automatically using Power-Train Virtual and Real Simulator (PT-VRS). The automated exploring sub-system is used to screen severe condition for drivability and explore feasible region of design space described by control parameters. An effective sampling strategy is introduced based on BAL. In the BAL, Gaussian Process models of drivability performance evaluated by PT-VARS is trained. Based on the posterior distributions of trained Gaussian Processes models, acquisition functions are evaluated and maximized to generate new sampling points. To show effectiveness of the proposed system, an example is demonstrated.https://www.jstage.jst.go.jp/article/transjsme/88/915/88_22-00219/_pdf/-char/envehicle dynamicsdrivabilitygaussian processbayesian active learningautomatic evaluation
spellingShingle Hisashi TAJIMA
Kohei SHINTANI
Azuki OGOSHI
Shota KITANO
Motofumi IWATA
An automation system for vehicle driveability evaluation using machine learning
Nihon Kikai Gakkai ronbunshu
vehicle dynamics
drivability
gaussian process
bayesian active learning
automatic evaluation
title An automation system for vehicle driveability evaluation using machine learning
title_full An automation system for vehicle driveability evaluation using machine learning
title_fullStr An automation system for vehicle driveability evaluation using machine learning
title_full_unstemmed An automation system for vehicle driveability evaluation using machine learning
title_short An automation system for vehicle driveability evaluation using machine learning
title_sort automation system for vehicle driveability evaluation using machine learning
topic vehicle dynamics
drivability
gaussian process
bayesian active learning
automatic evaluation
url https://www.jstage.jst.go.jp/article/transjsme/88/915/88_22-00219/_pdf/-char/en
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