Fault-tolerant control for diesel engine air path system via sliding mode surface
WU Wen-jie
ZHANG Yi-xin
WANG Xing-jian
WANG Shao-ping
ZHANG Jian
ZHENG Wei
TAO Mo
Abstract：The operating environment of the diesel engine air path system is complex and may be affected by exter-nal random disturbances.Potentially leading to faults.This paper addresses the fault-tolerant control problem of the diesel engine air path system,assuming that the system may simultaneously be affected by actuator faults and external random dis-turbances,a disturbance observer-based sliding mode controller is designed.Through the linear matrix inequality technique for solving observer and controller gains,optimal gain matrices can be obtained,eliminating the manual adjustment process of controller parameters and reducing the chattering phenomenon of the sliding mode surface.Finally,the effectiveness of the proposed method is verified through simulation analysis.
Keywords：disel engine air pathfault-tolerant controlsliding mode controldisturbance observer
Publication Date：2025-08-30
Online Publishing Date：2025-10-10(First online date of this platform, not the publication date of the document)
Pages：8( 1570-1577 )