The dynamic performance and economic benefit of a blended braking system in a multi-speed battery electric vehicle
| Autor: | Paul D. Walker, Peter A. Watterson, Jiageng Ruan, Nong Zhang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0209 industrial biotechnology
Engineering Energy Engine braking business.industry 020209 energy Mechanical Engineering 02 engineering and technology Building and Construction Management Monitoring Policy and Law Retarder 7. Clean energy Automotive engineering Braking distance Cadence braking 020901 industrial engineering & automation General Energy Dynamic braking 0202 electrical engineering electronic engineering information engineering Emergency brake assist Threshold braking business Electronic brakeforce distribution |
| Zdroj: | Applied Energy. 183:1240-1258 |
| ISSN: | 0306-2619 |
| DOI: | 10.1016/j.apenergy.2016.09.057 |
| Popis: | © 2016 Elsevier Ltd As motor-supplied braking torque is applied to the wheels in an entirely different way to hydraulic friction braking systems and it is usually only connected to one axle complicated effects such as wheel slip and locking, vehicle body bounce and braking distance variation will inevitability impact on the performance and safety of braking. The potential for braking energy recovery in typical driving cycles is presented to show its benefit in this study. A general predictive model is designed to analysis the economic and dynamic performance of blended braking systems, satisfying the relevant regulations/laws and critical limitations. Braking strategies for different purposes are proposed to achieve a balance between braking performance, driving comfort and energy recovery rate. Special measures are taken to avoid any effects of motor failure. All strategies are analyzed in detail for various braking events. Advanced driver assistance systems (ADAS), such as ABS and EBD, are properly integrated to work with the regenerative braking system (RBS) harmoniously. Different switching plans during braking are discussed. The braking energy recovery rates and brake force distribution details for different driving cycles are simulated. Results for two of the cycles in an ‘Eco’ mode are measured on a drive train test rig and found to agree with the simulated results to within approximately 10%. Reliable conclusions can thus be gained on the economic benefit and dynamic braking performance. The strategies proposed in this paper are shown to not only achieve comfortable and safe braking during all driving conditions, but also to significantly reduce cost in both the short and long term. |
| Databáze: | OpenAIRE |
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