新能源汽车再生制动能量回收研究综述

Review on Regenerative Braking Energy Recovery in New Energy Vehicles

续驶里程及蓄电池供电技术是目前制约新能源汽车普及的主要因素。再生制动技术作为提高整车能量利用率的有效方案,为新能源汽车续驶里程的提高提供了一条切实可行的解决思路。针对再生制动关键技术,分别阐述了再生制动控制策略研究和再生制动能量管理研究两个方面的研究成果。针对再生制动策略问题,分别从制动意图识别、制动力分配以及轮缸压力控制三方面总结了再生制动相关控制策略;针对能量管理问题,分别从制动能量回收潜力与能量回收效果评估两方面对研究成果进行了总结。分析了通过能量流机理计算车辆节能潜力的方法,并对未来再生制动关键技术的研究与发展趋势进行了展望。

Driving range and battery power supply technology currently pose significant constraints to the extensive usage of new energy vehicles.As an effective approach to improve vehicle energy utilization,regenerative braking technology provides a practical solution to extend the driving range of new energy vehicles.The paper presents the research outcomes of regenerative braking technology focusing on both the control strategy and the energy management strategy.According to the research on regenerative braking strategies,the relevant control strategies were summarized from three aspects:braking intention identification,braking force distribution and wheel cylinder pressure control.On the topic of energy management strategies,the paper reviewed the research findings on braking energy recovery potential and the assessment of braking energy recovery effects.Finally,the method of calculating energy recovery potential based on energy flow mechanics was analyzed and the development directions of key regenerative braking technologies were prospected in this paper.