CAJ | 학술논문

在对电动助力转向系统和防抱制动系统分别建模的基础上,深入分析两系统在助力转向制动过程中的矛盾性,采用分层协调控制策略,将控制系统分为底层和上层控制部分.底层控制器为转向和制动系统两个单独的控制器,用以执行各子系统的控制任务;上层协调器对其进行整体协调分析.并及时修改底层控制的决策,从实现整车综合性能最优的目标出发来执行协调优化任务.仿真结果表明,提出的协调控制逻辑正确可行,在保证转向轻便性的前提下,提高了系统制动稳定性和行驶安全性.
재대전동조력전향계통화방포제동계통분별건모적기출상,심입분석량계통재조력전향제동과정중적모순성,채용분층협조공제책략,장공제계통분위저층화상층공제부분.저층공제기위전향화제동계통량개단독적공제기,용이집행각자계통적공제임무;상층협조기대기진행정체협조분석.병급시수개저층공제적결책,종실현정차종합성능최우적목표출발래집행협조우화임무.방진결과표명,제출적협조공제라집정학가행,재보증전향경편성적전제하,제고료계통제동은정성화행사안전성.
Based on modeling of electric power steering system and anti-lock braking system, conflict of the two systems in the process of power assisted steering and braking is analyzed, a layered coordinated control strategy for chassis control system divided into bottom and upper layer control parts is adopted. The bottom controllers are two separate controllers, i.e. steering and braking system controllers. Bottom controllers are used to carry out different control tasks and achieve performance indexes of subsystems. The upper coordinated controller is used to modify the decision-making of bottom controllers, aiming at improving whole vehicle synthesis performance. The result of simulation proves that the coordinated control logic is correct and feasible. Under the condition of ensuring steering portability, it improves the braking stability and driving security.