Indirect measurement technology of new energy vehicles' braking force under dynamic braking conditions

doi:10.1007/s40436-019-00278-x

Advances in Manufacturing ›› 2019, Vol. 7 ›› Issue (4): 389-400.doi: 10.1007/s40436-019-00278-x

Indirect measurement technology of new energy vehicles' braking force under dynamic braking conditions

Sen-Ming Zhong¹, Gui-Xiong Liu¹, Jia-Jian Wu¹, Bo Zeng²

1 School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, People's Republic of China;
2 State Key Laboratory of Environmental Adaptability for Industrial Products, Guangzhou 510663, People's Republic of China

收稿日期:2019-01-07 修回日期:2019-05-16 出版日期:2019-12-25 发布日期:2019-12-26
通讯作者: Gui-Xiong Liu E-mail:megxliu@scut.edu.cn
基金资助:
This research is supported by the Guangzhou Science and Technology Project (Grant No. 201504010037). We thank the useful discussion with engineers of AVL List GmbH and their support, as well as the discussion with some experts of CISPR and Chinese National Technical Committee of Auto Standardization. The hydraulic sensor is supplied by Guangzhou Huamao sensing instrument Co. Ltd.

Indirect measurement technology of new energy vehicles' braking force under dynamic braking conditions

Sen-Ming Zhong¹, Gui-Xiong Liu¹, Jia-Jian Wu¹, Bo Zeng²

1 School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, People's Republic of China;
2 State Key Laboratory of Environmental Adaptability for Industrial Products, Guangzhou 510663, People's Republic of China

Received:2019-01-07 Revised:2019-05-16 Online:2019-12-25 Published:2019-12-26
Contact: Gui-Xiong Liu E-mail:megxliu@scut.edu.cn
Supported by:
This research is supported by the Guangzhou Science and Technology Project (Grant No. 201504010037). We thank the useful discussion with engineers of AVL List GmbH and their support, as well as the discussion with some experts of CISPR and Chinese National Technical Committee of Auto Standardization. The hydraulic sensor is supplied by Guangzhou Huamao sensing instrument Co. Ltd.

摘要/Abstract

摘要： Currently, direct braking-force measurement under dynamic conditions requires a considerable modification to the vehicles and has poor compatibility because there are many types of vehicles. Thus, in this paper, an indirect measurement method of new-energy vehicles' braking force under dynamic braking conditions is proposed. The mechanical wheel and axle model at low/idling/high speeds is established using the piston-pressure formula, force transfer in the brake-wheel cylinder, relative movement between the wheel and the roller, among others. On this basis, the relationship between wheel braking force and roller-linear acceleration is further derived. Our method does not alter existing vehicle structures or sensor types. The standard sealing bolt is temporarily replaced with a hydraulic sensor for coefficient calibration. Afterward, the braking force can be indirectly calculated using the roller-linear velocity data. The method has characteristics of efficiency and high accuracy without refitting vehicles.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-019-00278-x

关键词: Braking force, Indirect measurement technology, Vehicles, Dynamic braking condition, Electromagnetic interference (EMI) test

Abstract: Currently, direct braking-force measurement under dynamic conditions requires a considerable modification to the vehicles and has poor compatibility because there are many types of vehicles. Thus, in this paper, an indirect measurement method of new-energy vehicles' braking force under dynamic braking conditions is proposed. The mechanical wheel and axle model at low/idling/high speeds is established using the piston-pressure formula, force transfer in the brake-wheel cylinder, relative movement between the wheel and the roller, among others. On this basis, the relationship between wheel braking force and roller-linear acceleration is further derived. Our method does not alter existing vehicle structures or sensor types. The standard sealing bolt is temporarily replaced with a hydraulic sensor for coefficient calibration. Afterward, the braking force can be indirectly calculated using the roller-linear velocity data. The method has characteristics of efficiency and high accuracy without refitting vehicles.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-019-00278-x

Key words: Braking force, Indirect measurement technology, Vehicles, Dynamic braking condition, Electromagnetic interference (EMI) test

Sen-Ming Zhong, Gui-Xiong Liu, Jia-Jian Wu, Bo Zeng. Indirect measurement technology of new energy vehicles' braking force under dynamic braking conditions[J]. Advances in Manufacturing, 2019, 7(4): 389-400.

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Indirect measurement technology of new energy vehicles' braking force under dynamic braking conditions

Indirect measurement technology of new energy vehicles' braking force under dynamic braking conditions

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