CAJ | 학술논문

针对混合动力汽车由纯电动模式切换到混合驱动模式这一过程的过驱动特性，本文给出了一种基于模型预测控制和控制分配的转矩协调控制方法，首先利用模型预测控制方法规划出最优虚拟控制量，然后将控制量分配方法描述为一个二次规划问题，从而求得实际控制量。文章最后对该控制方法进行了仿真验证，同时分析了控制器加权矩阵中各参数对控制性能的影响。仿真结果显示所设计的控制方法能够抑制车辆纵向冲击度，减小离合器磨损，取得了快速平顺的模式切换效果。
침대혼합동력기차유순전동모식절환도혼합구동모식저일과정적과구동특성，본문급출료일충기우모형예측공제화공제분배적전구협조공제방법，수선이용모형예측공제방법규화출최우허의공제량，연후장공제량분배방법묘술위일개이차규화문제，종이구득실제공제량。문장최후대해공제방법진행료방진험증，동시분석료공제기가권구진중각삼수대공제성능적영향。방진결과현시소설계적공제방법능구억제차량종향충격도，감소리합기마손，취득료쾌속평순적모식절환효과。
This paper presents a torque coordination control method based on MPC(Model Pre-dictive Control))and control allocation for mode transition from pure electrical driving to hybrid driving of a HEV(hybrid electric vehicle),which is an overactuated system. This method uses MPC for optimal virtual control input planning,and then formulates the control allocation algorithm as a quadratic pro-gramming problem to get actual control input. At last,simulation is given to verify the proposed control method,and the influence of each parameters of the weighting matrices on control performance is ana-lyzed. The simulation results show that the proposed control method achieves fast and smooth transition without sensible vehicle jerk and reduces frictional losses.