怠速充电工况下的电池SOC平衡控制

在分析单电机和双电机混合动力电动车发动机怠速充电工况下电池能量稳定性控制要求的基础上,提出了一种怠速充电工况电池SOC平衡的主动控制策略,并给出相应控制过程的能量控制目标值计算公式和相应的分析。通过对所提出的怠速充电工况电池SOC平衡控制策略进行仿真和实车测试,结果表明,该控制策略能有效控制电池SOC平衡,怠速充电过程中电池主动能量的过充和过放控制的稳定性也得到改善。

Battery SOC Balance Control Under Idle Charging Condition

On the basis of an analysis on the battery energy stability control requirements of single motor and dual motor hybrid electric vehicles under engine idle charging condition,an active control strategy for battery SOC balance under idle charging condition is proposed,with the calculation formula for the energy control target value corresponding to each control phase is given and analyzed.Simulation and real vehicle test are conducted on the battery SOC balance control strategy under idle charging condition with a result showing that the proposed control strategy can effectively control the SOC balance of battery,and the control stability of battery active energy overcharging and over-discharging in idle charging condition is also improved.