浅谈再生制动能量回收技术

Brief Discussion on Regenerative Braking Energy Recovery Technology

电动汽车续驶里程不足是制约电动汽车产业化发展的主要瓶颈,因此在有限车载能源情况下,提高电动汽车运行效能具有重要意义。尤其是电动城市客车运行在低速、制动频繁的城市工况,能量利用率提升空间更为客观。电动城市客车运行能效关键技术涉及:电池SOC的准确估算、驱动电机效率优化控制和再生制动能量回收。而其最主要的则为再生制动能量的回收,通过制定合理的优化法案、控制策略以及基于此基础上的一些高效的系统和技术方法来提升汽车的效能。

The lack of driving range of electric vehicles is the main bottleneck that restricts the development of electric vehicles.Therefore,under the condition of limited on-board energy,it is of great significance to improve the operating efficiency of electric vehicles.In particular,electric city buses operate in low-speed,frequent-brake urban conditions,and the energy efficiency improvement space is more objective.The key technologies for operating energy efficiency of electric city buses involve accurate estimation of battery SOC,optimal control of drive motor efficiency,and regenerative braking energy recovery.And the most important one is the recovery of regenerative braking energy.Improve the efficiency of cars by formulating sound optimization laws,control strategies,and some efficient systems and techniques based on them.