论文部分内容阅读
针对三轴独立电驱动结构形式的混合动力车辆,提出了多轴独立电驱动系统的驱动力分层协调控制方法。首先建立多轴驱动转矩协调控制系统的分层控制结构,将控制系统划分为理想路面下的总需求驱动力矩分配层(上层)、驱动工况下的单轴驱动防滑控制层(下层),以及在上下层出现矛盾时进行协调控制的协调层(中层)。在完成了多轴驱动转矩协调分配控制策略的设计之后,在MATLAB/Simulink环境下开发了前向仿真模型,对控制策略进行了仿真分析。在此基础上,通过实车试验对该控制策略进行了试验验证和评价。结果表明,所提出的协调控制系统实现了对车辆有效、可靠的控制,提高了电机系统的效率和车辆的通过性。
Aiming at the hybrid vehicle with three-axis independent electric drive structure, a coordinated control method of driving force of multi-axis independent electric drive system is proposed. Firstly, the hierarchical control structure of multi-axis torque control system is established. The control system is divided into the total demand driving torque distribution layer (upper layer) under the ideal road surface and the single-shaft non-slip control layer (lower layer) under driving conditions. And coordination at the upper and lower levels of coordination (middle level). After completing the design of coordinated control strategy of multi-axis driving torque, a forward simulation model was developed under MATLAB / Simulink environment and the control strategy was simulated. On this basis, this control strategy was verified and evaluated through real vehicle test. The results show that the proposed coordinated control system can effectively and reliably control the vehicle and improve the efficiency of the motor system and the vehicle passing.