电动轮汽车DYC控制硬件在环仿真

Hardware-in-loop simulation for DYC control of electric-wheel vehicle

针对由于电动轮汽车缺少传统的机械差速装置,导致系统呈现严重的非线性问题,提出一种基于模糊规则的电动轮汽车DYC系统,该DYC系统可以协助驾驶员在转向时保持对车辆的控制.设计了基于x PCTarget的硬件在环仿真平台,采用DSP2812嵌入式DYC控制器与实时运行的电动轮汽车仿真模块联合进行电动轮汽车直接横摆力矩控制实验.实验结果表明,基于x PCTarget的硬件在环仿真平台的实时性很好地满足了实验要求,DYC系统可提高车辆的稳定性.

Aiming at the serious nonlinearity problems existing in the system due to the fact that the electric-wheel vehicle lacks the conventional mechanical differential device, a DYC system of electric-wheel vehicle based on fuzzy rule was proposed, and the DYC system could help the driver maintain the capacity of vehicle control in the steering moment. A hardware-in-loop simulation platform baged on xPCTarget was designed. In combination with the DSP2812 embedded DYC controller and the electric-wheel vehicle simulation block in real-time operation, the direct yaw-moment control experiments for the electric-wheel vehicle were performed. The experimental results show that the real-time performance of hard-in-loop simulation platform based on xPCTarget can well satisfy the demand in the experiments, and the DYC system can improve the stability of vehicle.