Damping matching test method and system for automobile suspension system based on magnetic rheology technology

A technology of magnetorheological damper and automobile suspension

Inactive Publication Date: 2006-04-12
CHONGQING UNIV
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  • Abstract
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Problems solved by technology

This kind of test to replace the damper is labor-intensive, the test period is long, and the cost is high. Moreover, since the damping force has been determined by th

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  • Damping matching test method and system for automobile suspension system based on magnetic rheology technology
  • Damping matching test method and system for automobile suspension system based on magnetic rheology technology
  • Damping matching test method and system for automobile suspension system based on magnetic rheology technology

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Embodiment Construction

[0025] As shown in Figure 1, the damping matching bench test adopts a 1 / 4 vehicle model, consisting of frame 1, a sprung mass 2 that can move freely in the vertical direction in the frame 1, an unsprung mass 5 connected to the action head 6, and a force sensor 3 between the sprung mass 2 and the unsprung mass 5, a displacement sensor 4, a spring 8 and a magneto-rheological damper (MRD) 7, and the matching peripheral equipment includes a peak detection module, Toggle analog switches, potentiometers, and feedback controllers. In terms of equipment connection, the signal line of the displacement sensor is connected to the peak detection module, and the output signal of the peak detection module is connected to the switching analog switch. Switching the analog switch converts the reset damping value and compression damping value of the required MRD preset by the potentiometer into The voltage signal is connected to the feedback controller as a given value, the control line of the ...

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Abstract

This invention discloses a car suspended damp matching test method and system based on a magneto-rheopectic technology, in which, the system is composed of an up-sprung mass, an unsprung mass, a spring, a magneto-rheopectic damper, a force sensor, a shift sensor, a switch analog switch of an outside peak test module and a feed back controller. Before testing, related voltage signals are got by designing necessary recovered damp value and the compressed damp value of the magneto-rheopectic damper, when an operation head moves up and down to excite the system and the shift sensor tests the relative signal peak value of the piston, the relative voltage signals are input to the feedback controller as the given value by the switch analog switch to control the damper to reach the designed recovered damp value, the compressed damp value and the optimum matching.

Description

technical field [0001] The invention belongs to the damping matching test technology in the design of the automobile suspension system. Background technique [0002] Damping matching is a key link in automotive suspension design, and damping matching tests must be carried out before new models of automobile OEMs are put into production. At present, the method used in the damping matching test of each factory is to pre-design a group of dampers (up to ten, or even dozens) of different damping values ​​and conduct damping matching tests under different parameters on the test bench until one is selected. The damper that is considered to be the best match. This kind of test to replace the damper is labor-intensive, the test period is long, and the cost is high. Moreover, since the damping force has been determined by the structural parameters and damping oil in advance, it cannot be adjusted continuously. The results of this test are difficult to...

Claims

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Application Information

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IPC IPC(8): G01M17/04G01M17/007
Inventor 余淼廖昌荣陈伟民毛林章董小闵张红辉
Owner CHONGQING UNIV
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