Shock absorber damping control and performance evaluation method, shock absorber optimized through method and vehicle comprising shock absorber

Abstract

The invention discloses a shock absorber performance evaluation method according to the action of a vehicle supporting spring and the working principle of a shock absorber. According to the method, adifference value obtained by subtracting a set supporting force value or an equivalent supporting force value of the supporting spring at the current travel position from the gravity of a vehicle bodypart supported by the supporting spring is used as a basis for calculating a reference force value of a tensile damping force value or a compression damping force value of the shock absorber at the current travel position; and the reference force value of the shock absorber at the travel position is used as a basis for controlling or setting the damping force value of the shock absorber and as abasis for determining the performance of the shock absorber. By means of the method, the comfort degree obtained after the shock absorber, the supporting spring and the vehicle weight after matching can be visually determined, and debugging of a vehicle suspension and selection and matching of the shock absorber and the supporting spring become easier; and meanwhile, an optimal damping control scheme of the shock absorber is disclosed, so that the problem of how to realize optimal damping of the shock absorber, which perplexes the shock absorber industry for a long time, is solved.

Description

technical field

[0001] The invention mainly relates to the design, manufacture and performance evaluation of the vehicle shock absorber. Background technique

[0002] For a long time, the unanimous view of engineering and technical personnel on the damping control method of the shock absorber is: when the road surface is uneven, the smaller the stiffness of the support spring, the smaller the damping of the shock absorber, the better the comfort; The greater the spring rate, the greater the damping of the shock absorber and the worse the comfort. Due to the technical awareness of engineers and technicians engaged in shock absorbers, the design and manufacture of shock absorbers and the matching of vehicles and support springs have not been effectively resolved. Fundamentally solve the essential problems involved in the design of the shock absorber, so that complicated tasks such as controlling the damping of the shock absorber based on the road condition information obtaine...

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