The invention relates to the technical field of automobile active suspension control, in particular to an active suspension control method and system of a hub motor automobile under complex road conditions. The control method comprises the steps that the current driving state of the vehicle is obtained; and switching the output force of the active suspension actuator according to the driving information. According to the method, a complex road condition switching control scheme is constructed by combining extension LQG control and preview MPC control, and a smoothing coefficient # imgabs0 # is introduced to ensure that smooth transition can be realized during control switching, so that the riding comfort of a vehicle under a random road surface working condition containing discrete impact is improved. According to the method, the driving smoothness and the working safety of the suspension are further improved, and particularly the comprehensive control performance of the suspension under the influence of discrete impact is considered.
本发明涉及汽车主动悬架控制技术领域,更具体的,涉及轮毂电机汽车在复杂路况下的主动悬架控制方法、系统。本发明的控制方法包括:获取车辆的当前行驶状态;依据行驶信息切换主动悬架执行器输出力。本发明结合了可拓LQG控制和预瞄MPC控制构建出复杂路况切换控制方案,并引入平滑系数#imgabs0#来保证控制切换时能够实现平滑过渡,从而提高车辆在含有离散冲击的随机路面工况下的乘坐舒适性。本发明进一步提高了行驶平顺性及悬架工作安全性,尤其是考虑离散冲击影响下的悬架综合控制性能。
Active suspension control method and system for hub motor automobile under complex road conditions
轮毂电机汽车在复杂路况下的主动悬架控制方法、系统
2024-02-27
Patent
Electronic Resource
Chinese
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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