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Adjustable damping valve and vehicle hydraulic interconnection suspension system

A technology for adjusting damping and vehicles, which is applied in the field of vehicle hydraulics, can solve the problem that the damping cannot be adjusted in real time, etc., and achieve the effect of reasonable design.

Pending Publication Date: 2020-05-26
常州万安汽车部件科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the existing hydraulic interconnected suspension system can only provide the vehicle with a damping force that changes according to the set curve during the running of the vehicle, and cannot realize real-time adjustable damping determined according to the working conditions.

Method used

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  • Adjustable damping valve and vehicle hydraulic interconnection suspension system
  • Adjustable damping valve and vehicle hydraulic interconnection suspension system
  • Adjustable damping valve and vehicle hydraulic interconnection suspension system

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specific example

[0051] like figure 1 As shown, three flow holes n1, n2 and n3 with different diameters are provided on the valve body 101, and n1, n2 and n3 run through the upper and lower sides of the valve body and communicate with the internal axial through hole. On both sides of the axial through hole, one transverse oil hole is connected to the flow holes n1, n2 and n3, and the peripheral oil ports of n1, n2 and n3 are closed with plugs 107 or other methods, leaving only the oil ports K1 and K2. K1 and K2 are connected into the pipeline of the hydraulic interconnection suspension system and connected in series with the fixed flow damping valve. The two ends of the axial through hole of the valve body 101 are provided with seals 105, whose function is to prevent the oil in the valve body 101 from leaking out during the sliding process of the spool 102.

[0052] The spool 102 has a flow hole m1 with a larger diameter, and m1 does not participate in the flow control of the flow control val...

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Abstract

The invention discloses an adjustable damping valve. The adjustable damping valve comprises a valve body, a sliding column, a reset spring used for resetting the sliding column, a driving structure used for driving the sliding column to move; the valve body is provided with two oil ports communicated with an oil way; the sliding column is movably arranged in the valve body; a group of throttling holes which are communicated with the two oil ports and have different hole diameters are formed in the valve body and the sliding column. A hydraulic interconnection suspension system comprises a front left hydraulic cylinder, a front right hydraulic cylinder, a rear left hydraulic cylinder and a rear right hydraulic cylinder; the rod cavity of the front left hydraulic cylinder, the rodless cavityof the front right hydraulic cylinder, the rod cavity of the rear left hydraulic cylinder and the rodless cavity of the rear right hydraulic cylinder are connected to form a hydraulic loop a; the rodless cavity of the front left hydraulic cylinder, the rod cavity of the front right hydraulic cylinder, the rodless cavity of the rear left hydraulic cylinder and the rod cavity of the rear right hydraulic cylinder are connected to form a hydraulic loop b; and adjustable damping valves are arranged in the hydraulic loop a and the hydraulic loop b. Damping adjustability can be achieved, and the damping characteristic of the system adapts to the motion state of a whole vehicle.

Description

technical field [0001] The invention relates to the technical field of vehicle hydraulics, in particular to an adjustable flow damping valve and a vehicle hydraulic interconnection suspension system. Background technique [0002] The hydraulically interconnected suspension system is composed of hydraulic cylinders, hydraulic pipelines, accumulators, damping valves and other components. The hydraulic cylinder is arranged between the four wheels and the vehicle body, one end is fixed with the vehicle body, and the other end is fixed with the wheel. The four hydraulic cylinders are interconnected in a certain way to form two closed hydraulic circuits. Each closed circuit is provided with at least one accumulator, with at least one or no means for providing damping. [0003] For the hydraulically interconnected suspension system with a damping valve device, the damping valve can be in various forms, such as disc valve, rod valve, plunger valve and sheet valve, as long as it ca...

Claims

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Application Information

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IPC IPC(8): B60G21/06B60G13/08F16F9/34
CPCB60G13/08B60G21/06B60G2202/24B60G2204/8304F16F9/34
Inventor 张农华卉周敏唐范斌綦衡敏周金南
Owner 常州万安汽车部件科技有限公司
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