Damping-adjustable shock absorber

Abstract

The invention relates to a novel structure technique of a damping-adjustable shock absorber applied to semi-active suspensions of various motor vehicles (including but not limited to saloons, off-road vehicles, trucks, passenger cars and the like), in particular to a novel damping adjustable shock absorber. The shock absorber comprises an end part connecting ring, a piston rod, a shock absorber cover, a sealing and guiding device, a piston valve assembly, a bottom valve assembly and a cylinder body, and is characterized by further comprising a small external high-pressure oil cavity, a main control valve assembly, a main control valve shell, a stepping motor, a main control valve end cover, a driver, a stepping motor controller and a control panel; the small external high-pressure oil cavity is formed in a local opening at the upper end of an outer barrel of the cylinder body; a stretching cavity A and an oil storing cavity C are communicated through a throttling channel at a guide seat, and the pressure and flow are controlled through the main control valve assembly. The novel damping adjustable shock absorber has the advantages of simple and reasonable structure, low energy consumption, low cost, high comfort, high stability and manual control function.

Description

technical field [0001] The invention relates to a new structural technology of an adjustable damping shock absorber for semi-active suspension of various motor vehicles (including but not limited to cars, off-road vehicles, trucks, passenger cars, etc.), specifically an adjustable damping shock absorber. Background technique [0002] In order to meet people's requirements for car handling and comfort when traveling in modern society, intelligent cars have gradually entered our real life. Active and semi-active suspension systems solve the problem that traditional passive suspensions cannot balance comfort and stability, and can adapt to changing driving conditions and arbitrary road excitations. However, due to the large energy consumption and high cost of active suspension, the structure It is complex, so it is rarely used in practical applications; semi-active suspension is also less used in some low-end cars due to the complexity of the control system, high cost and poor ...

AI Technical Summary

Problems solved by technology

Active and semi-active suspension systems solve the problem that traditional passive suspensions cannot balance comfort and stability, and can adapt to changing driving conditions and arbitrary road excitations. However, due to the large energy consumption and high cost of active suspension, the structure It is complex, so it is rarely used in practical applications; semi-active suspension is also less used in some low-end cars due to the complexity of the control system, high cost and poor stability.

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