Autonomous intelligent self-energy-supply active suspension adopting double-head oil cylinder and working method of autonomous intelligent self-energy-supply active suspension

Abstract

The invention discloses an autonomous intelligent self-energy-supply active suspension adopting a double-head oil cylinder and a working method, and belongs to the field of automobiles, the autonomous intelligent self-energy-supply active suspension comprises a traditional vibration reduction structure and an anti-resonance vibration reduction structure, the anti-resonance vibration reduction structure is provided with the double-head oil cylinder, and the double-head oil cylinder is composed of a second oil cylinder arranged up and down and a second piston with piston rods at the upper end and the lower end; the upper portion of an upper oil cavity of the second oil cylinder is sequentially connected with an inerter spiral pipe, an intelligent control switch and the lower portion of a lower oil cavity of the second oil cylinder through a hydraulic pipeline, and the two ends of the intelligent control switch are connected with a normally-closed electromagnetic valve which is closed in a delayed mode in parallel. The intelligent control switch automatically changes the equal-inertial-capacity value and the equal-damping value of the anti-resonance vibration reduction structure along with changes of the vibration frequency of the automobile, when the vibration frequency of the automobile is low, large equal-inertial-capacity and equal-damping are provided to improve the driving safety, and when the vibration frequency of the automobile is high, small equal-inertial-capacity and equal-damping are provided to improve the riding comfort.

Description

technical field [0001] The invention belongs to the field of automobiles and relates to an automobile suspension, in particular to a self-powered active suspension including a traditional damping structure and an anti-resonance damping structure. Background technique [0002] The self-powered active suspension adopts the traditional damping structure, the third mass of the suspension and the anti-resonance damping structure connected in series from bottom to top, which is compatible with the passive suspension, semi-active suspension and Compared with active suspension, it can effectively dampen the high-frequency vibration of the vehicle body, and is especially suitable for driving conditions where the high-frequency components of road surface roughness account for a high proportion. [0003] Among them, the oil cylinders in the traditional damping structure and the anti-resonance damping structure adopt single-head oil cylinders. The characteristics of the single-head oil ...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the anti-resonance vibration damping structure of the above-mentioned self-powered active suspension uses a single-head oil cylinder to provide equal damping and other inertia, which requires complex rectification oil circuits, and can not achieve intelligence between the ride comfort and driving safety of the car. To solve the problem of switching, an autonomous intelligent self-powered active suspension using double-headed oil cylinders is proposed, and the working method of the autonomous intelligent self-powered active suspension is proposed to automatically improve the ride comfort and driving safety of the car with a relatively simple oil circuit

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