纯电动汽车制动能量回收控制策略研究

纯电动汽车制动能量回收控制策略探

究

摘要：随着环保与新能源汽车的飞速进步，电动汽车越来

越成为大众消费新的选择。然而，纯电动汽车在行驶过程中需要通过刹车来减速，而传统刹车方式会浪费大量能量，严峻影响汽车的续航里程。因此，如何有效地利用制动时产生的能量回收，成为其中一个亟待解决的问题。本论文主要探究纯电动汽车制动能量回收控制策略，通过对纯电动汽车运动规律和能量消耗的分析，提出了一种基于车辆运动状态的制动能量回收控制策略。该控制策略可以在不干扰驾驶员刹车体验的状况下，实现高效能量回收，提高纯电动汽车的续航里程。同时，本探究还针对控制策略的实现方法进行了详尽设计，并进行了仿真试验验证，验证结果表明，该方法能够有效地控制制动能量回收，提高纯电动汽车的续航里程，为电动汽车的进步提供了一定的理论支持。

关键词：纯电动汽车；制动能量回收；控制策略；续航里程；仿真试验

Abstract: With the rapid development of environmental protection and new energy vehicles, electric vehicles are increasingly becoming a new choice for the public consumption. However, pure electric vehicles need to

slow down through braking during driving, and the traditional braking method will waste a lot of energy, seriously affecting the vehicle's cruising range. Therefore, how to effectively use the energy recovery generated during braking has become an urgent problem to be solved. This paper mainly studies the control strategy of braking energy recovery for pure electric vehicles. Based on the analysis of the motion law and energy consumption of pure electric vehicles, a

braking energy recovery control strategy based on vehicle motion state is proposed. This control

strategy can achieve efficient energy recovery without interfering with the driver's braking experience, and improve the cruising range of pure electric vehicles. At the same time, this study has also designed the detailed implementation method of the control strategy, and conducted simulation experiments to verify it. The results show that this method can effectively control the braking energy recovery, improve the cruising

range of pure electric vehicles, and provide certain theoretical support for the development of electric vehicles.

Keywords: pure electric vehicles; braking energy recovery; control strategy; cruising range; simulation experiment。

As electric vehicles become increasingly popular, one of the key challenges is how to improve their cruising range. Braking energy recovery is an effective way to extend the cruising range of pure electric vehicles, but it also presents challenges in terms of how to control the recovery process.

In this study, a control strategy for braking energy recovery in pure electric vehicles was proposed, which combines the regenerative braking system and the traditional hydraulic braking system. The control strategy divides the braking energy recovery process into three stages: energy acquisition, energy management, and energy utilization.

During the energy acquisition stage, the regenerative braking system is used to convert the kinetic energy of the vehicle into electrical energy, which is stored in the battery. During the energy management stage, the control strategy ensures that the energy is used efficiently by balancing the battery charging and discharging. Finally, during the energy utilization stage, the energy stored in the battery is used to power the vehicle.

Simulation experiments were conducted to verify the effectiveness of the proposed control strategy. The