Three-stage damping adjustable active energy-feeding suspension layered controller and its construction method

Abstract

The invention discloses an active energy-feedback suspension layered controller with adjustable three-level damping and a construction method of the active energy-feedback suspension layered controller with the adjustable three-level damping. The active energy-feedback suspension layered controller with the adjustable three-level damping comprises a finished car active suspension system and a three-level layered controller body which is composed of a planning-level controller, a coordination-level controller and an execution-level controller. According to the active energy-feedback suspension layered controller with the adjustable three-level damping, the intelligent hierarchical control strategy is adopted, and a finished car active energy-feedback suspension control system is divided into a planning level, a coordination level and an execution level. The planning level judges the moving gesture of a car according to a plurality of types of sensor information, and is combined with the finished car active energy-feedback suspension coordination control logic to carry out overall coordination and decision planning on control subsystems. The coordination level receives an instruction of an upper layer, and carries out integral analysis and decision making on subsystems with reference of feedback information of the execution level. The execution level mainly carries out control tasks of the three subsystems. The active energy-feedback suspension layered controller with the adjustable three-level damping can overcome the defects of a centralized control structure, and can improve the reliability of the system. Due to the fact that the layered coordination control strategy is used for having control over a finished car active energy-feedback suspension, the good comprehensive performance of the finished car active energy-feedback suspension can be achieved.

Description

technical field [0001] The invention relates to a layered controller of an active energy-feeding suspension with adjustable three-stage damping and a construction method thereof, which is suitable for layered control of an active-energy-feeding suspension with adjustable three-stage damping, and belongs to the automobile energy-saving vibration reduction control technology field. Background technique [0002] In recent years, international oil prices have fluctuated, and energy and environmental issues have become increasingly prominent. Energy conservation, emission reduction, and low-carbon economy have become one of the main measures to achieve national sustainable development. As a country with a large number of automobiles in China, it is of extraordinary significance to study how to improve the energy-saving performance of automobiles and reduce unnecessary energy loss in automobiles. When the car is running on the road, due to the excitation of the uneven road surfac...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the defect that there is a coupling and conflict relationship between multiple systems of the active energy-feeding suspension of the vehicle in the prior art, and it cannot perform well under a wide range of working conditions, a three-stage damping adjustable active energy-feeding suspension is provided. In order to improve the adaptability and robustness of the three-stage damping-adjustable active energy-feeding suspension to parameter changes and disturbances, effectively recycle the vibration energy of the suspension, and coordinate and optimize the overall performance of the suspension , use the hierarchical control theory to carry out hierarchical control on the energy-feeding suspension of the whole vehicle, so as to coordinate the functional conflicts among multiple parallel control systems

Images