Real-time judgment method for plumpness of sedan damper indicating characteristics in assembling line
A technology for assembling production lines and shock absorbers, which is used in vehicle suspension/shock absorber testing and other directions. performance issues
Inactive Publication Date: 2015-02-18
GUANGDONG UNIV OF TECH
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Problems solved by technology
[0004] The dynamometer characteristic judgment of the traditional car shock absorber test system basically adopts the manual judgment method, which is not only inefficient, but also cannot realize the online test function
However, most of the systems with simple automatic discrimination function can only distinguish the peak values of tensile recovery resistance and compression recovery resistance, but cannot identify the fullness and smoothness of the dynamometer diagram.
As a result, the efficiency of the shock absorber assembly line is low and the performance of the tested shock absorber specimens cannot be correctly judged
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[0029] The schematic diagram of the multi-point detection and judgment principle of the fullness of the shock absorber indicator characteristic of the present invention is as follows: Figure 5 As shown, the basic idea of this method is: in the area where the attenuator indicator curve is distorted, that is, the four key areas where the damping force changes sharply, the four areas where the damping force of the above-mentioned shock absorber indicator characteristic changes sharply are The quadrant I in the upper left, the quadrant II in the lower left, the quadrant III in the upper right, and the quadrant IV in the lower right in the characteristic diagram of the shock absorber, the displacement of quadrant I is positive, the damping force is positive, and the displacement of quadrant II is Positive, the damping force is negative, the displacement of quadrant III is positive, the damping force is positive, the displacement of quadrant IV is positive, the damping force is ne...
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The invention relates to a real-time judgment method for the plumpness of sedan damper indicating characteristics in an assembling line. The real-time judgment method comprises the following steps of: 1) respectively taking a plurality of stroke positions (1, 2, 3 and 4) for each zone of four zones, the damper indicating characteristic attenuation force of which is suddenly changed, and respectively setting the reference values (a, b, c and d) of the attenuation force valves of a damper at a plurality of stroke positions (1, 2, 3 and 4) of the damper; 2) detecting the corresponding attenuation force valves (A, B, C and D) at the stroke positions (1, 2, 3 and 4) of the damper by an attenuation force detection system after the damper indicating characteristics are tested and obtained; and 3) judging whether a damper test piece is normal or not according to the set reference values (a, b, c and d) of the attenuation force valves and the detected attenuation force valves (A, B, C and D) by the attenuation force detection system, wherein when the detected attenuation force valves (A, B, C and D) are larger than or equal to the set reference values (a, b, c and d) of the attenuation force valves, the attenuation force detection system is judged to be normal, and otherwise, the attenuation force detection system is judged to be abnormal. The real-time judgment method provided by the invention can automatically carry out the online and the real-time judgment on the plumpness of the damper indicating characteristics.
Description
technical field [0001] The invention relates to a real-time judging method for the fullness of the indicator performance characteristics of a car shock absorber in an assembly production line, and belongs to the transformation technology of the real-time judgment method for the fullness of the indicator work characteristics of a car shock absorber in the assembly line. Background technique [0002] With high speed, comfort and safety, cars are promoted as the first-selected means of transportation. Car suspension system is an important mechanism to ensure car driving safety and ride comfort. As one of the important components of the suspension system of a car, the performance of the shock absorber directly affects the safety and reliability of the car. Therefore, during the driving of the car, it is necessary to ensure that the shock absorber can maintain stable and reliable working performance. There are many factors that affect the performance of the shock absorber, and ...
Claims
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IPC IPC(8): G01M17/04
Inventor 郑莹娜李扬刘强贾燕铭蓝凤英
Owner GUANGDONG UNIV OF TECH