Design method of energy-regenerative suspension power generator power based on shock absorber speed features

A technology of generator power and speed characteristics, applied in instrumentation, calculation, electrical and digital data processing, etc., can solve the problem that it is difficult to obtain accurate and reliable design values, can not meet the requirements of the vehicle for suspension damping matching and ride comfort, feedback There is no accurate and reliable design method in the power design of the generator that can be suspended, so as to achieve the effect of reducing design and test costs, reliable design methods and improving design level.

Inactive Publication Date: 2015-01-28
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although many experts have done a lot of research on energy-feeding suspension generators, no accurate and reliable design method has been given for the power design of energy-feeding suspension generators. Most of them use generators with a certain power and then The power of the generator is finally determined by the method of repeated vehicle ride comfort tests. Therefore, it is difficult to obtain accurate and reliable design values ​​with the traditional design method of the generator power of the energy-feeding suspension, which cannot meet the requirements of the vehicle for suspension damping matching and ride comfort. sexual demands

Method used

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  • Design method of energy-regenerative suspension power generator power based on shock absorber speed features
  • Design method of energy-regenerative suspension power generator power based on shock absorber speed features
  • Design method of energy-regenerative suspension power generator power based on shock absorber speed features

Examples

Experimental program
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Embodiment 1

[0041] Embodiment 1: A certain automobile has good ride comfort, the installation angle of its original vehicle-mounted shock absorber is α=10°, the suspension lever ratio is i=0.9, and the conventional vibration working speed of the shock absorber is V=0.6m / s; the test load The displacement amplitude A=0.05m. Now the ordinary suspension of this car is designed as an energy-feeding suspension. According to the installation angle of the original vehicle shock absorber and the suspension lever ratio, the normal working speed and the damping characteristic test at this speed, through the analysis and calculation of the test data , to design the rated power of the energy-fed suspension generator.

[0042] The design method of the energy-feeding suspension generator power based on the speed characteristic of the shock absorber provided by the example of the present invention, its specific design steps are as follows:

[0043] (1) Determine the harmonic displacement frequency f app...

Embodiment 2

[0070] Embodiment 2: A certain automobile with good ride comfort, the installation angle α=15° of its original vehicle-mounted shock absorber, the suspension lever ratio i=0.9, and the maximum vibration velocity V of the shock absorber max = 1.0m / s; the displacement amplitude A of the test load is the same as that of the first embodiment, and the design steps of the first embodiment are now used to design the maximum power of the vehicle-fed suspension generator.

[0071] (1) Determine the harmonic displacement frequency f applied in the damping characteristic test of the original vehicle-mounted shock absorber:

[0072] According to the maximum vibration velocity V of the original vehicle shock absorber max =1.0m / s, and the displacement amplitude A=0.05m of the test load, calculate the harmonic displacement frequency f applied in the damping characteristic test of the original vehicle-mounted shock absorber, namely:

[0073] f=V max / (2πA)=3.18Hz;

[0074] (2) The damping ...

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Abstract

The invention relates to a design method of energy-regenerative suspension power generator power based on shock absorber speed features, and belongs to the technical field of an energy-regenerative suspension. The design method is characterized in that for vehicles with good running smoothness, the automobile energy-regenerative suspension power generator power is designed through the analysis and the processing on test data according to the installing angle of an original vehicle-mounted shock absorber, a suspension lever ratio and a damping force array and a displacement array measured by damping feature tests of the original vehicle-mounted shock absorber at the shock speed. When the method provided by the invention is used, the energy-regenerative suspension power generator power can be accurately and reliably designed; the optimum power design value of an energy-regenerative suspension power generator can be obtained, so that the energy-regenerative suspension achieves the best damping matching; the vehicle running smoothness is improved; the design and test cost of the energy-regenerative suspension power generator can be reduced; the product development speed is accelerated; and a reliable design method is provided for the vehicle energy-regenerative suspension power generator power design.

Description

technical field [0001] The invention relates to a vehicle energy-feeding suspension, in particular to a method for designing generator power of the energy-feeding suspension based on the velocity characteristics of a shock absorber. Background technique [0002] Due to the up and down vibration energy of the body of the ordinary vehicle suspension, it can only be dissipated in the form of heat energy through the shock absorber. With the continuous increase of automobile fuel shortage and energy-saving awareness, the energy-feeding suspension has attracted the attention of vehicle suspension research experts at home and abroad, that is, the vibration energy of the upper and lower parts of the vehicle body is converted into electrical energy through a generator to recover, store and utilize. The vehicle acts as a shock absorber. Although many experts have done a lot of research on energy-feeding suspension generators, no accurate and reliable design method has been given for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 于曰伟周长城刘小亭提艳宋群
Owner SHANDONG UNIV OF TECH
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