A control method, device and system for a rail vehicle and a nonlinear suspension system
A suspension system and control method technology, applied in program control, computer control, general control system, etc., can solve the problem of single observer function, poor smoothness, comfort and safety of suspension system, and inability to observe external disturbances of the system and other problems, to achieve the effect of system stability and improvement of smoothness
Active Publication Date: 2022-07-08
CRRC QINGDAO SIFANG CO LTD
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Problems solved by technology
[0003] At present, the existing observer-based control research only considers the situation of the linear suspension system. The observer based on the linear suspension system has a single function and cannot observe the external disturbance of the system. When the suspension system is controlled, the smoothness, comfort and safety of the suspension system are poor
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[0062] Embodiments of the present invention provide a control method, device, system, and computer-readable storage medium for a rail vehicle and a nonlinear suspension system, which can make the system more stable and improve the ride comfort, comfort, and safety of the system during use. .
[0063] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0064] Please refer to figure 1 , fi...
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The invention discloses a control method, device, system and computer-readable storage medium for a rail vehicle and a nonlinear suspension system. The method includes: establishing a nonlinear suspension system model according to historical experimental data of the nonlinear air suspension system ; Using an expanded state observer to observe the state variables and external disturbances of the nonlinear suspension system model, to obtain the expanded state observer parameters and corresponding observed values; to establish the expanded state observer parameters and the observed values The controller of the nonlinear suspension system, and the nonlinear air suspension system is controlled by the controller; the control of the nonlinear suspension system through the controller established in the present invention can make the system more stable, Improve system ride, comfort and safety.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of automatic control, and in particular, to a control method, device, system, and computer-readable storage medium for a rail vehicle and a nonlinear suspension system. Background technique [0002] As a kind of suspension device, air suspension has the function of transmitting force and buffering impact force. Its basic structure includes air spring and shock absorber. The control strategy of the existing air suspension is established under the assumption that the state variables of the system can be completely measured by the sensors without any problems, but in practical situations, there are sensor failures, various state variables cannot be measured and The problem of low precision makes it impossible to obtain some state variables directly, and in complex environments, the data problems brought by sensors may cause more serious harm. Therefore, in order to improve the fault toler...
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IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/25257Y02T90/00
Inventor 卢京廷李硕董威李玲马顺
Owner CRRC QINGDAO SIFANG CO LTD