摘要
电控空气悬架通过主动调节汽车车身高度和刚度,能够提高车辆在实际行驶中的乘坐舒适性、操稳性和燃油经济性。在整车空气悬架的协同控制中,由于各个车轮处系统结构参数差异和整车载荷分布不均,将导致空气悬架在车身高度调节过程中产生四轮偏差,使车身姿态不稳定,影响了悬架控制的实际性能。为了解决这一问题,提出了一种基于四轮偏差优化的PI控制与占空比修正融合的控制策略,优化了传统的控制策略,有效实现了整车高度的四轮协同控制。该策略充分考虑了四轮悬架控制的不一致性,解决了协同控制过程中的动态偏差问题,提高了空气悬架高度控制的精度和姿态稳定性。
Electronic air suspension can improve the ride comfort,the handling stability and the fuel economy of vehicles in actual driving by actively adjusting the height and stiffness of the vehicle body.In the collaborative control of the entire vehicle air suspension,four-wheel deviations occur during the height adjustment process of the air suspension due to differences in system structural parameters at each wheel and uneven distribution of the vehicle load,thereby making the vehicle's posture unstable and affecting the actual performance of suspension control.To address this issue,this article optimizes traditional control strategies and proposes a control strategy based on the integration of PI control optimized for four-wheel deviation and duty cycle correction,effectively achieving collaborative control of the entire vehicle height.This approach effectively achieves coordinated control of the vehicle's height by fully accounting for the inconsistencies in the four-wheel suspension system,resolving dynamic deviations during the collaborative control process,and improving the accuracy and stability of the air suspension height control.
作者
王森波
刘侃
王里达
李任平
雷羿含
WANG Sen-bo;LIU Kan;WANG Li-da;LI Ren-ping;LEI Yi-han(College of Mechanical and Vehicle Engineering,Hunan University,Changsha 410082;Zhuzhou Times New Material Technology Co.,Ltd.,Zhuzhou 412007)
出处
《制造业自动化》
2025年第6期67-74,共8页
Manufacturing Automation
基金
湖南省科技创新计划项目(2023RC1047)。
关键词
空气悬架
车身高度
四轮偏差
PI控制
占空比修正
协同控制
air suspension
vehicle height
four-wheel deviation
PI control
duty cycle correction
collaborative control
