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A method for calculating the pressure loss of a shunt R-type automobile shock absorber

A calculation method and shock absorber technology, applied in the direction of shock absorber, liquid shock absorber, calculation, etc., can solve the problems of uncertain control model, no calculation method of shock absorber pressure loss, etc.

Active Publication Date: 2018-12-28
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] When controlling the resistance of the shock absorber, because there is no better calculation method for the pressure loss of the shock absorber, the control model of the control system has certain limitations. uncertainty

Method used

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  • A method for calculating the pressure loss of a shunt R-type automobile shock absorber
  • A method for calculating the pressure loss of a shunt R-type automobile shock absorber
  • A method for calculating the pressure loss of a shunt R-type automobile shock absorber

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Experimental program
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Embodiment

[0094] Such as figure 1 shown;

[0095] The parallel resistance adjustment section includes four capillaries, which are R8, R4, R2, and R1; they are respectively connected in series with the solenoid valve V R8 , V R4 , V R2 , V R1 control its work. The length ratio of capillary R8, R4, R2, R1 is 8:4:2:1, where the length of capillary R1 is L R1 ; their diameters are d R .

[0096] The dynamic viscosity μ of the oily liquid of the shock absorber and the total flow rate q of the resistance adjustment section of the shock absorber are known t .

[0097] According to the conditions of this embodiment, we can first obtain the size parameters of all the capillaries in the resistance adjusting section. Then, the total pressure loss ΣΔp of the shock absorber under various working conditions can be calculated according to the following steps:

[0098] (1) Determine the value range of i;

[0099] (2) Calculate the flow resistance R of all the working capillaries in the resis...

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Abstract

The invention discloses a method for calculating the pressure loss of a shunt R-type automobile shock absorber. The automobile shock absorber comprises a frame, a spring, an axle, a hydraulic cylinder, an upper oil tank, a piston, a lower oil tank and a resistance regulating section. The resistance regulating section is composed of four parallel capillaries and solenoid valves. These four capillaries are all M-shaped. These four capillaries are capillary R8, R4, R2, R1, which are connected in series with solenoid valves VR8, VR4, VR2, VR1, respectively. Due to the viscosity of the oily liquidin the cylinder block, the configuration SRn of the solenoid valves VR8, VR4, VR2 and VR1 can be adjusted to adjust the damping when the oily liquid flows through the resistance regulating section. The invention provides a method for calculating the pressure loss of an R-type automobile shock absorber, and achieves the purpose of reducing the uncertainty of a control model, and provides a theoretical basis for improving the control quality of shock absorber.

Description

technical field [0001] The invention relates to the field of hydraulic automobile shock absorbers, in particular to a method for calculating pressure loss of parallel R-type automobile shock absorbers. Background technique [0002] The vibration reduction methods of automobiles mainly include hydraulic type, pneumatic type and electromagnetic type. The hydraulic type is currently the most widely used vehicle vibration reduction method. [0003] figure 1 It is a structural schematic diagram of the existing parallel R-type automobile shock absorber. For the working principle of the parallel R-type automobile shock absorber, please refer to the patent No. ZL 201110448639.2, and the patent name is a parallel capillary variable damping automobile shock absorber. [0004] The automobile shock absorber comprises a vehicle frame, a spring, an axle, a hydraulic cylinder, an upper oil tank, a piston, a lower oil tank and a resistance adjusting section. [0005] The resistance adjus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/15G06F2119/06Y02T90/00B60G13/08B60G13/18B60G15/06F16F9/19G06F2111/10G06F30/20F16F9/106G01M17/04
Inventor 容强
Owner SOUTH CHINA UNIV OF TECH