Real-time judgment method for plumpness of sedan damper indicating characteristics in assembling line

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 d