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Optimal anti-lock braking control with nonlinear variable voltage charging scheme for an electric vehicle
IEEE Transactions on Vehicular Technology ( IF 6.8 ) Pub Date : 2020-07-01 , DOI: 10.1109/tvt.2020.2992756
Jun-Cheng Wang , Ren He , Young-Bae Kim

An optimal anti-lock braking control strategy using nonlinear variable voltage charging scheme for an electric-wheel vehicle is developed with aim of improving energy recovery efficiency on the premise of vehicle safety under the critical braking situation. A variable voltage charging control scheme is proposed with its operational principles to obtain maximum energy recovery as well as to balance the energy differences of each battery cell during the anti-lock braking. Given the nonlinearity of in-wheel motor, the nonlinear variable voltage charging control law is obtained on the basis of parameters fitting via experimental data. An ideal regenerative braking torque calculated by the nonlinear variable voltage charging control law is set as one of the disturbance vectors and an optimal sliding mode–anti-lock braking control strategy is developed to provide optimal hydraulic pressure for anti-lock braking system. In this manner, the torque allocation process is omitted by using a compensation control of the hydraulic braking torque. Simulation results corroborate the effectiveness of the proposed optimal anti-lock braking control strategy with higher energy recovery efficiency.

中文翻译:

电动汽车非线性变压充电方案最优防抱死制动控制

为提高电动轮车辆在紧急制动情况下的安全性前提下的能量回收效率,提出了一种采用非线性可变电压充电方案的电动轮汽车最优防抱死制动控制策略。提出了一种可变电压充电控制方案,其工作原理是在防抱死制动过程中获得最大的能量回收以及平衡每个电池单元的能量差异。考虑到轮毂电机的非线性,在参数拟合的基础上,通过实验数据得到非线性变电压充电控制规律。将通过非线性可变电压充电控制律计算的理想再生制动转矩设置为扰动向量之一,并开发了最优滑模-防抱死制动控制策略,为防抱死制动系统提供最佳液压。这样,通过使用液压制动扭矩的补偿控制,省略了扭矩分配过程。仿真结果证实了所提出的具有更高能量回收效率的最优防抱死制动控制策略的有效性。
更新日期:2020-07-01
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