Magneto-rheological damper control method and system based on temperature compensation
A magneto-rheological shock absorber and temperature compensation technology, which is applied in the direction of shock absorber, spring/shock absorber design features, shock absorber, etc., can solve the parametric model of magnetorheological shock absorber without considering the influence of temperature Insufficient precision, low control precision of magneto-rheological shock absorbers, etc., to achieve the effect of improving control reliability
Active Publication Date: 2021-12-31
TSINGHUA UNIV
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[0007] The present invention provides a temperature compensation-based magneto-rheological damper control method and system, which are used to solve the lack of accuracy of the parametric model of the magnetorheological damper in the prior art and the failure to consider the influence of temperature, which leads to magnetorheological damping The defect of low controller control precision
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[0047] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention. , not all examples. 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.
[0048] figure 1 A method for controlling a magnetorheological damper based on temperature compensation provided by an embodiment of the present invention is shown, and the method includes:
[0049] S110: Obtain the desired damping force, the stretching speed and the current working temperature of the magnetorheological damper to be controlled.
[0050] S120: Input the expected damping force, tensile speed and cur...
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The invention provides a magneto-rheological damper control method and system based on temperature compensation. According to the magneto-rheological damper control method and system based on temperature compensation, the working temperature is introduced as an independent variable, the target expected damping force, the stretching speed and the working temperature are taken as the independent variables, the target control current is taken as a dependent variable, an inverse model of a magneto-rheological damper is constructed, more accurate control current can be output through the model, then accurate control over the magneto-rheological damper at different temperatures is achieved, damping force actually output by the magneto-rheological damper is closer to expected damping force, and control reliability is greatly improved.
Description
technical field [0001] The invention relates to the technical field of vehicle control, in particular to a temperature compensation-based magnetorheological damper control method and system. Background technique [0002] Vehicle semi-active suspension can adjust damping force within the range of damping force dissipation, which can improve ride comfort and driving stability, so it is widely used. There are two main types of variable damping shock absorbers used in vehicle semi-active suspensions, one is a controllable solenoid valve type shock absorber, and the other is a magnetorheological shock absorber. Magneto-rheological shock absorbers have better application prospects due to the advantages of large adjustable force value range and fast response. The working principle of the magnetorheological damper is: under the action of the magnetic field, the magnetic particles in the magnetorheological liquid will be chain-shaped along the direction of the magnetic field, and ex...
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IPC IPC(8): F16F9/53F16F15/00
CPCF16F9/535F16F15/002F16F2230/18
Inventor 梁冠群危银涛吕靖成杜永昌
Owner TSINGHUA UNIV