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Vibration and impact fusion control method

A technology that integrates control and control force. It is applied in the direction of elastic suspension, suspension, transportation and packaging, etc. It can solve the problems of less connection between vibration control methods and impact control methods, equipment and human injury, and human acceleration mutations. To achieve the effect of improving system stability, driving comfort and ride comfort

Active Publication Date: 2021-07-30
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the switching control unit of this hybrid control method only judges the timing of switching based on whether the suspension stroke will be used up and the suspension limit will be hit. There is less consideration of contact, which is likely to cause a sudden change in the acceleration of the human body during the switching process, thereby causing damage to the equipment and the human body

Method used

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  • Vibration and impact fusion control method
  • Vibration and impact fusion control method
  • Vibration and impact fusion control method

Examples

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Embodiment Construction

[0072] In this embodiment, a vibration and shock fusion control method is applied to a vehicle that includes a suspension system; for example figure 2 As shown, the suspension mechanism includes: vehicle frame 1, displacement sensor 2, shock absorber 3, spring 4, vehicle axle 5, tire 6; To collect the displacement and velocity signals of the remaining stroke of the shock absorber, the unsprung mass and the sprung mass; in this embodiment, the vibration and impact fusion control method, such as figure 1 As shown, when the external excitation is transmitted to the suspension system, the displacement and velocity signals are collected by the displacement sensor 2, the vibration control mode and the impact control mode respectively calculate the expected vibration control force and impact control force required by the current suspension system state, and the vibration After the vibration control force and impact control force are collected in the shock fusion control mode, it is ...

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Abstract

The invention discloses a vibration and impact fusion control method, which is applied to a vehicle comprising a suspension mechanism. The method comprises the steps of 1 establishing a power flow vibration and impact fusion control method based on a vibration and impact end-stop judgment control method; 2 based on a ceiling damping semi-active control method, introducing a power flow analysis method, and establishing a power flow vibration control method; and 3 based on a soft landing impact idea, introducing a power flow analysis method, and establishing a power flow impact control method. Smooth switching between the vibration control method and the impact control method can be achieved, meanwhile, the vibration control force and the impact control force needed by the suspension system are accurately calculated, and therefore damage of vibration / impact to equipment and a human body is greatly reduced.

Description

technical field [0001] The invention relates to the field of active / semi-active suspension vibration and shock control, in particular to a vibration and shock fusion control method. Background technique [0002] For engineering vehicles, special vehicles and other special vehicles running on non-structural roads or non-road surfaces, as well as mechanical equipment such as landing gear and ships, vibration and shock are unavoidable during the operation process. For vibration excitation, there have been many researches on control methods, which can achieve a better vibration suppression effect and greatly reduce the damage caused by vibration to the human body, such as the ceiling damping control method. For shock excitation, because it can only be encountered in specific environments or use scenarios, there are few related studies, but there are also better shock control methods that are worth learning. However, it is too idealistic to consider vibration excitation or impac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G17/018B60G17/019B60G17/06B60G17/02
CPCB60G17/0182B60G17/019B60G17/06B60G17/02
Inventor 李成蹊白先旭陈建川李维汉
Owner HEFEI UNIV OF TECH
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