| Autor: |
Wang, J., Besselink, I.J.M., van Boekel, J.J.P., Nijmeijer, H. |
| Přispěvatelé: |
Dynamics and Control |
| Jazyk: |
angličtina |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
STARTPAGE=1;ENDPAGE=10;TITLE=2015 European Battery, Hybrid and Fuel Cell Electric Vehicle Congress (EEVC 2015) |
| Popis: |
Regenerative braking of electric vehicles (EVs) is important to improve the energy efficiency and increase the vehicle range. However, the additional friction braking during deceleration may limit the amount of recuperated energy. To improve the energy efficiency and driving comfort of EVs, a one pedal driving algorithm (OPD) has been designed. With the OPD algorithm, the vehicle can be driven using accelerator pedal alone in most cases and the brake pedal is only applied in emergency situations. This paper discusses the energy efficiency gains of an OPD algorithm for EVs. The research uses the TU/e Lupo EL, a battery electric vehicle built by Eindhoven University of Technology. Two regenerative braking algorithms are considered: an OPD algorithm and a parallel regenerative braking algorithm (PR). The accelerator maps of the OPD and PR algorithm are introduced and evaluated. The relationship between the vehicle speed and acceleration and accelerator pedal position is more linear for the OPD algorithm compared to the PR algorithm. Subjective tests confirm that the OPD algorithm can provide a much improved driving experience in comparison to the PR algorithm. A coasting area is included in the OPD accelerator map, which is essential for reducing the energy consumption as proved by a MATLAB optimization code. The comparison of energy consumption between the OPD and PR algorithm is analyzed by driving tests and simulations. Measurement results show that over 93% of the regenerative braking energy measured at the high voltage battery terminals can be reused to propel the vehicle. Compared to no regenerative braking, the OPD algorithm can save about 22% energy in city driving and 13% energy in rural driving, while the energy savings are 14% and 9% in city and rural driving respectively for the PR algorithm. Simulation results show that the OPD algorithm can save up to 2% to 9% energy in comparison to the PR algorithm based on the same speed profile for city and rural driving respectively. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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