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Temperature-coupled self-adjusting hydro-pneumatic suspension

A technology of oil and gas suspension and automatic adjustment, applied in the direction of suspension, elastic suspension, vibration suppression adjustment, etc., can solve the problems of different damping characteristics, adjustment, affecting damping characteristics, etc., and achieve the effect of improving suspension characteristics

Inactive Publication Date: 2018-09-21
胡湘蜜
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Problems solved by technology

[0002] The spring stiffness, vibration damping and other parameters of the traditional passive oil-pneumatic suspension are fixed, so they cannot be adjusted in real time according to the actual operating conditions of the vehicle to achieve the optimal vibration reduction effect. The semi-active suspension and active suspension that appear further Its spring parameters and damping parameters can be adjusted according to the state of the vehicle and the road surface, so that the vehicle can obtain the best operability and comfort. However, the temperature of the oil used as the damping of the oil-pneumatic suspension will change during the working process. , the temperature change will affect the viscosity of the oil, which will further affect the damping characteristics. Therefore, the damping characteristics of the oil initially determined in the design, manufacture and installation of the suspension will be different from the damping characteristics of the actual process oil, resulting in the initial Design parameters such as load size, wheel diameter, chassis height, etc. do not match the suspension, resulting in poor performance

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  • Temperature-coupled self-adjusting hydro-pneumatic suspension

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Embodiment Construction

[0010] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0011] Such as figure 1 The oil-pneumatic suspension structure of the present invention shown includes a piston rod 1, a floating piston 2, an air chamber 3, an oil liquid outer chamber 4, a one-way valve 5, a damping hole 6, an oil liquid inner chamber 7, an oil-pneumatic suspension cylinder body 8, and The liquid inner chamber 7 and the oil liquid outer chamber 4 are connected through the one-way valve 5 and the damping hole 6. The floating piston 2 separates the air chamber 3 from the oil liquid inner chamber 7. When the oil passes through the damping hole, a damping effect is generated. The change of gas volume produces a damping effect. When the piston rod 1 is stressed, the piston rod will move longitudinally along the cylinder, so the floating piston will also move longitudinally, which in turn changes the volume of high-pressure gas in the air chamber and gen...

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Abstract

The invention provides a temperature-coupled self-adjusting hydro-pneumatic suspension. The temperature-coupled self-adjusting hydro-pneumatic suspension is designed to reduce or even completely avoidthe problem that the damping characteristics of the hydro-pneumatic suspension caused by the change of temperature are not matched with the initial design, layers of temperature sensitive materials are designed on the outer layers of damping holes, the damping characteristics are changed by the volume change of the temperature sensitive materials, the change of the damping characteristics of thehydro-pneumatic suspension caused by the change of oil viscosity due to the change of temperature and heat is completely canceled, so that the initial design of vehicle suspension performance modification is consistent and matched with that of other design parameters, and the performance of the vehicle suspension is improved.

Description

technical field [0001] The invention relates to the field of oil-gas suspension, in particular to an oil-gas suspension whose damping hole changes with temperature. Background technique [0002] The spring stiffness, vibration damping and other parameters of the traditional passive oil-pneumatic suspension are fixed, so they cannot be adjusted in real time according to the actual operating conditions of the vehicle to achieve the optimal vibration reduction effect. The semi-active suspension and active suspension that appear further Its spring parameters and damping parameters can be adjusted according to the state of the vehicle and the road surface, so that the vehicle can obtain the best operability and comfort. However, the temperature of the oil used as the damping of the oil-pneumatic suspension will change during the working process. , the temperature change will affect the viscosity of the oil, which will further affect the damping characteristics. Therefore, the dam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G11/26F16F15/023
CPCB60G11/265F16F15/0232
Inventor 胡湘蜜
Owner 胡湘蜜
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