Optimization Transmission Efficiency with Driver Intention for Automotive Continuously Variable Transmission under Slip Mode

Abstract This study proposes and experimentally validates an optimal integrated system to control the automotive continuously variable transmission (CVT) by Model Predictive Control (MPC) to achieve its expected transmission efficiency range. The control system framework consists of top and bottom l...

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Autores principales:	Ling Han, Hui Zhang, Ruoyu Fang, Hongxiang Liu
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	V-belt continuously variable transmission Model predictive control Drive intention Slip mode Transmission efficiency Ocean engineering TC1501-1800 Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/a6efb1542cbd42df8933130f0ab7a16c
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spelling	oai:doaj.org-article:a6efb1542cbd42df8933130f0ab7a16c2021-11-07T12:03:24ZOptimization Transmission Efficiency with Driver Intention for Automotive Continuously Variable Transmission under Slip Mode10.1186/s10033-021-00620-01000-93452192-8258https://doaj.org/article/a6efb1542cbd42df8933130f0ab7a16c2021-11-01T00:00:00Zhttps://doi.org/10.1186/s10033-021-00620-0https://doaj.org/toc/1000-9345https://doaj.org/toc/2192-8258Abstract This study proposes and experimentally validates an optimal integrated system to control the automotive continuously variable transmission (CVT) by Model Predictive Control (MPC) to achieve its expected transmission efficiency range. The control system framework consists of top and bottom layers. In the top layer, a driving intention recognition system is designed on the basis of fuzzy control strategy to determine the relationship between the driver intention and CVT target ratio at the corresponding time. In the bottom layer, a new slip state dynamic equation is obtained considering slip characteristics and its related constraints, and a clamping force bench is established. Innovatively, a joint controller based on model predictive control (MPC) is designed taking internal combustion engine torque and slip between the metal belt and pulley as optimization dual targets. A cycle is attained by solving the optimization target to achieve optimum engine torque and the input slip in real-time. Moreover, the new controller provides good robustness. Finally, performance is tested by actual CVT vehicles. Results show that compared with traditional control, the proposed control improves vehicle transmission efficiency by approximately 9.12%–9.35% with high accuracy.Ling HanHui ZhangRuoyu FangHongxiang LiuSpringerOpenarticleV-belt continuously variable transmissionModel predictive controlDrive intentionSlip modeTransmission efficiencyOcean engineeringTC1501-1800Mechanical engineering and machineryTJ1-1570ENChinese Journal of Mechanical Engineering, Vol 34, Iss 1, Pp 1-17 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	V-belt continuously variable transmission Model predictive control Drive intention Slip mode Transmission efficiency Ocean engineering TC1501-1800 Mechanical engineering and machinery TJ1-1570
spellingShingle	V-belt continuously variable transmission Model predictive control Drive intention Slip mode Transmission efficiency Ocean engineering TC1501-1800 Mechanical engineering and machinery TJ1-1570 Ling Han Hui Zhang Ruoyu Fang Hongxiang Liu Optimization Transmission Efficiency with Driver Intention for Automotive Continuously Variable Transmission under Slip Mode
description	Abstract This study proposes and experimentally validates an optimal integrated system to control the automotive continuously variable transmission (CVT) by Model Predictive Control (MPC) to achieve its expected transmission efficiency range. The control system framework consists of top and bottom layers. In the top layer, a driving intention recognition system is designed on the basis of fuzzy control strategy to determine the relationship between the driver intention and CVT target ratio at the corresponding time. In the bottom layer, a new slip state dynamic equation is obtained considering slip characteristics and its related constraints, and a clamping force bench is established. Innovatively, a joint controller based on model predictive control (MPC) is designed taking internal combustion engine torque and slip between the metal belt and pulley as optimization dual targets. A cycle is attained by solving the optimization target to achieve optimum engine torque and the input slip in real-time. Moreover, the new controller provides good robustness. Finally, performance is tested by actual CVT vehicles. Results show that compared with traditional control, the proposed control improves vehicle transmission efficiency by approximately 9.12%–9.35% with high accuracy.
format	article
author	Ling Han Hui Zhang Ruoyu Fang Hongxiang Liu
author_facet	Ling Han Hui Zhang Ruoyu Fang Hongxiang Liu
author_sort	Ling Han
title	Optimization Transmission Efficiency with Driver Intention for Automotive Continuously Variable Transmission under Slip Mode
title_short	Optimization Transmission Efficiency with Driver Intention for Automotive Continuously Variable Transmission under Slip Mode
title_full	Optimization Transmission Efficiency with Driver Intention for Automotive Continuously Variable Transmission under Slip Mode
title_fullStr	Optimization Transmission Efficiency with Driver Intention for Automotive Continuously Variable Transmission under Slip Mode
title_full_unstemmed	Optimization Transmission Efficiency with Driver Intention for Automotive Continuously Variable Transmission under Slip Mode
title_sort	optimization transmission efficiency with driver intention for automotive continuously variable transmission under slip mode
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/a6efb1542cbd42df8933130f0ab7a16c
work_keys_str_mv	AT linghan optimizationtransmissionefficiencywithdriverintentionforautomotivecontinuouslyvariabletransmissionunderslipmode AT huizhang optimizationtransmissionefficiencywithdriverintentionforautomotivecontinuouslyvariabletransmissionunderslipmode AT ruoyufang optimizationtransmissionefficiencywithdriverintentionforautomotivecontinuouslyvariabletransmissionunderslipmode AT hongxiangliu optimizationtransmissionefficiencywithdriverintentionforautomotivecontinuouslyvariabletransmissionunderslipmode
_version_	1718443567289991168

Optimization Transmission Efficiency with Driver Intention for Automotive Continuously Variable Transmission under Slip Mode

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