Abstract
More than 25% of vehicle kinetic energy can be recycled under urban driving cycles. A single-pedal control strategy for regenerative braking is proposed to further enhance energy efficiency. Acceleration and deceleration are controlled by a single pedal, which alleviates driving intensity and prompts energy recovery. Regenerative braking is theoretically analyzed based on the construction of the single-pedal system, vehicle braking dynamics, and energy conservation law. The single-pedal control strategy is developed by considering daily driving conditions, and a single-pedal simulation model is established. Typical driving cycles are simulated to verify the effectiveness of the single-pedal control strategy. A dynamometer test is conducted to confirm the validity of the simulation model. Results show that using the single-pedal control strategy for electric vehicles can effectively improve the energy recovery rate and extend the driving range under the premise of ensuring safety while braking. The study lays a technical foundation for the optimization of regenerative braking systems and development of single-pedal control systems, which are conducive to the promotion and popularization of electric vehicles.
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This work was supported by the National Natural Science Foundation of China (Grant No. 51675324).
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Liu, W., Qi, H., Liu, X. et al. Evaluation of regenerative braking based on single-pedal control for electric vehicles. Front. Mech. Eng. 15, 166–179 (2020). https://doi.org/10.1007/s11465-019-0546-x
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DOI: https://doi.org/10.1007/s11465-019-0546-x