Indirect measurement technology of new energy vehicles’ braking force under dynamic braking conditions
| Autor: | Bo Zeng, Gui-Xiong Liu, Jia-Jian Wu, Sen-Ming Zhong |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0209 industrial biotechnology
Measurement method business.product_category Polymers and Plastics Computer science Mechanical Engineering New energy 02 engineering and technology Industrial and Manufacturing Engineering Automotive engineering 020303 mechanical engineering & transports 020901 industrial engineering & automation 0203 mechanical engineering Mechanics of Materials Wheel and axle business |
| Zdroj: | Advances in Manufacturing. 7:389-400 |
| ISSN: | 2195-3597 2095-3127 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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