电动汽车再生制动控制策略研究
Regenerative Braking Control Strategy for Electric Vehicle
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摘要: 制定合理的再生制动控制策略,使其在保证制动稳定性的基础上,最大限度回收制动能量. 通过对汽车制动动力学和相关法规的分析,结合电机的输出特性,建立了电机模型,提出了一种前后轮制动力分配的控制策略,并在Advisor软件上进行了仿真分析. 与常用的比例制动控制策略相比,该控制策略能充分利用电机的制动转矩,大幅提高制动能量的回收;同时也很好地满足了制动稳定性要求.Abstract: New regenerative braking control strategy should be established to recycle braking energy as much as possible as a prerequisite of brake performance. Together with the analysis of the vehicle brake dynamics and related braking regulations, and output characteristic of motor,the model of moter was established.A new regenerative braking control strategy of distribution between regenerative braking force and frictional braking force in electric vehicles was proposed, and simulation carried out with Matlab/Advisor. Compared with the usual scale braking control strategy, the proposed strategy enables to take advantage of motor brake torque, and a remarkable motor regenerative energy improvement can be achieved. The results also indicated that the control strategy could handle with the braking demand well.
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