基于Simulink的分布驱动电动汽车再生制动的研究

Research on Regenerative Braking of Distributed Drive Electric Mobile Based on Simulink

以分布驱动电动汽车再生制动系统为研究对象,介绍了再生制动的基本原理及影响因素。利用Simulink建立了电动轮力学模型、轮胎模型、电机模型、电池模型以及再生制动与ABS集成控制模型。以最佳制动能量回收为目标,进行单一附着路面相同目标制动强度下不同制动初始车速和相同制动初始车速下不同的附着路面不同制动强度的仿真。结果表明,再生制动与ABS集成控制策略能按照电动轮状态进行有效而准确的控制和能量回收,验证了所建模型的准确性和控制策略的有效性。

Taking distributed driving electric mobile regenerative braking system as the object of the research, the fundamental and main influence factors of regenerative braking system are analyzed. Dynamical model, tire model, motor model, battery model and regenerative braking, and ABS integration control model are built. Aiming at best braking energy recovery, the same attachment coefficient, brake-strength with different initial speed simulation and same initial speed with different attachment coefficient and brake-strength simulation are made. The results indicate that the strategy can achieve the goal of effective and accurate control and energy recovery and verify the accuracy and effectiveness of the model and control strategy.