A Novel Double Redundant Brake-by-Wire System for High Automation Driving Safety: Design, Optimization and Experimental Validation

The high redundant brake-by-wire system reveals vehicular safety handling ability and rarely emerges in the automotive area at the present time. This paper presents a novel brake-by-wire system, DREHB (Double Redundant Electro-Hydraulic Brake), with extensible fail-safe operations for high-automatio...

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Autores principales:	Chao Li, Junzhi Zhang, Xiaohui Hou, Yuan Ji, Jinheng Han, Chengkun He, Jiangmai Hao
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	brake-by-wire system autonomous driving high safety redundancy design development and validation Materials of engineering and construction. Mechanics of materials TA401-492 Production of electric energy or power. Powerplants. Central stations TK1001-1841
Acceso en línea:	https://doaj.org/article/c08469b61bd3416cba71d6abc5f6863c
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id	oai:doaj.org-article:c08469b61bd3416cba71d6abc5f6863c
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spelling	oai:doaj.org-article:c08469b61bd3416cba71d6abc5f6863c2021-11-25T15:56:50ZA Novel Double Redundant Brake-by-Wire System for High Automation Driving Safety: Design, Optimization and Experimental Validation10.3390/act101102872076-0825https://doaj.org/article/c08469b61bd3416cba71d6abc5f6863c2021-10-01T00:00:00Zhttps://www.mdpi.com/2076-0825/10/11/287https://doaj.org/toc/2076-0825The high redundant brake-by-wire system reveals vehicular safety handling ability and rarely emerges in the automotive area at the present time. This paper presents a novel brake-by-wire system, DREHB (Double Redundant Electro-Hydraulic Brake), with extensible fail-safe operations for high-automation autonomous driving vehicles. The DREHB is designed as a decoupled-architecture system containing three-layer cascaded modules, including a hydraulic power provider, a hydraulic flow switcher, and a hydraulic pressure modulator, and each of the modules can share dual redundancy. The operating principles of the DREHB in normal and degraded initiative braking modes are introduced, especially for the consideration of fail-safe and fail-operational functions. The matching and optimization of selected key parameters of the electric boost master cylinder and the linear solenoid valve were conducted using computer-aided batched simulations with a DREHB system modeled in MATLAB/Simulink and AMESim. The prototype of the DREHB was tested in hardware-in-the-loop experiments. The test results of typical braking scenarios verify the feasibility and effectiveness of the DREHB system, and the hydraulic pressure response as 28.0 MPa/s and tracking error within 0.15 MPa and the desirable fail-safe braking ability fully meets the requirements of higher braking safety and efficiency.Chao LiJunzhi ZhangXiaohui HouYuan JiJinheng HanChengkun HeJiangmai HaoMDPI AGarticlebrake-by-wire systemautonomous drivinghigh safetyredundancy designdevelopment and validationMaterials of engineering and construction. Mechanics of materialsTA401-492Production of electric energy or power. Powerplants. Central stationsTK1001-1841ENActuators, Vol 10, Iss 287, p 287 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	brake-by-wire system autonomous driving high safety redundancy design development and validation Materials of engineering and construction. Mechanics of materials TA401-492 Production of electric energy or power. Powerplants. Central stations TK1001-1841
spellingShingle	brake-by-wire system autonomous driving high safety redundancy design development and validation Materials of engineering and construction. Mechanics of materials TA401-492 Production of electric energy or power. Powerplants. Central stations TK1001-1841 Chao Li Junzhi Zhang Xiaohui Hou Yuan Ji Jinheng Han Chengkun He Jiangmai Hao A Novel Double Redundant Brake-by-Wire System for High Automation Driving Safety: Design, Optimization and Experimental Validation
description	The high redundant brake-by-wire system reveals vehicular safety handling ability and rarely emerges in the automotive area at the present time. This paper presents a novel brake-by-wire system, DREHB (Double Redundant Electro-Hydraulic Brake), with extensible fail-safe operations for high-automation autonomous driving vehicles. The DREHB is designed as a decoupled-architecture system containing three-layer cascaded modules, including a hydraulic power provider, a hydraulic flow switcher, and a hydraulic pressure modulator, and each of the modules can share dual redundancy. The operating principles of the DREHB in normal and degraded initiative braking modes are introduced, especially for the consideration of fail-safe and fail-operational functions. The matching and optimization of selected key parameters of the electric boost master cylinder and the linear solenoid valve were conducted using computer-aided batched simulations with a DREHB system modeled in MATLAB/Simulink and AMESim. The prototype of the DREHB was tested in hardware-in-the-loop experiments. The test results of typical braking scenarios verify the feasibility and effectiveness of the DREHB system, and the hydraulic pressure response as 28.0 MPa/s and tracking error within 0.15 MPa and the desirable fail-safe braking ability fully meets the requirements of higher braking safety and efficiency.
format	article
author	Chao Li Junzhi Zhang Xiaohui Hou Yuan Ji Jinheng Han Chengkun He Jiangmai Hao
author_facet	Chao Li Junzhi Zhang Xiaohui Hou Yuan Ji Jinheng Han Chengkun He Jiangmai Hao
author_sort	Chao Li
title	A Novel Double Redundant Brake-by-Wire System for High Automation Driving Safety: Design, Optimization and Experimental Validation
title_short	A Novel Double Redundant Brake-by-Wire System for High Automation Driving Safety: Design, Optimization and Experimental Validation
title_full	A Novel Double Redundant Brake-by-Wire System for High Automation Driving Safety: Design, Optimization and Experimental Validation
title_fullStr	A Novel Double Redundant Brake-by-Wire System for High Automation Driving Safety: Design, Optimization and Experimental Validation
title_full_unstemmed	A Novel Double Redundant Brake-by-Wire System for High Automation Driving Safety: Design, Optimization and Experimental Validation
title_sort	novel double redundant brake-by-wire system for high automation driving safety: design, optimization and experimental validation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c08469b61bd3416cba71d6abc5f6863c
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A Novel Double Redundant Brake-by-Wire System for High Automation Driving Safety: Design, Optimization and Experimental Validation

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