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首页> 外文期刊>SAE International Journal of Electrified Vehicles >Engine Start-Up Robust Control for a Power-Split Hybrid System Based on μ Synthesis Method
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Engine Start-Up Robust Control for a Power-Split Hybrid System Based on μ Synthesis Method

机译：引擎启动功率分流的鲁棒控制混合动力系统基于μ综合方法

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摘要

Engine starting control is of great importance for the mode transition process from pure electric mode to electronic-Continuously Variable Transmission (e-CVT) mode for an input power-split system. To suppress the impact of engine start-up on the powertrain, and improve the vehicle ride comfort during the mode transition process, this study proposes an engine start-up robust control strategy based on the μ synthesis method. Firstly, the models of powertrain dynamics and the engine ripple torque (ERT) are established, and the mode transition process is analyzed. Secondly, the engine start-up robust control strategy is proposed to distribute the torque of each power source. The optimal engine cranking speed trajectory is designed based on a dynamic programming algorithm aimed at reducing the engine start-up time and improving the vehicle ride comfort. Finally, to track the optimal engine speed trajectory and the desired power output-end speed, a robust controller is developed based on the μ synthesis method, which considers the system's parametric perturbations and external disturbances. Simulation results on the MATLAB/Simulink platform indicate that the proposed approach can effectively reduce the vehicle longitudinal jerk during the engine starting process and possess superior robust performance against parametric perturbations and external disturbances.
机译：发动机启动控制具有十分重要的意义从纯电动模式转变过程模式electronic-Continuously变量为一个输入传输(e-CVT)模式功率分流系统。引擎启动动力系统,并改善车辆行驶舒适模式过渡过程中,本研究提出了一种发动机启动基于μ的鲁棒控制策略合成方法。动力系统动力学和发动机脉动转矩(ERT),和模式过渡过程进行了分析。创业提出了鲁棒控制策略分配每个电源的扭矩。优化发动机起动速度轨迹设计了基于动态规划算法旨在减少引擎启动时间和改善车辆平顺性。跟踪最优发动机转速和轨迹所需的电源输出端速度,一个健壮的控制器是基于μ综合开发方法,该方法考虑了系统的参数扰动和外部干扰。在MATLAB / Simulink仿真结果表明,该方法可以平台有效降低车辆纵向混蛋在发动机启动过程中,拥有优越的鲁棒性能参数扰动和外部干扰。

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