A kind of air pressure adaptively changing air spring and its air pressure control method

Abstract

The invention relates to an air pressure self-adaptive change air spring and an air pressure control method thereof. The air bag is sealed by a cover plate, a cylinder is built in the air bag, and a conductive material is pasted inside the cylinder. In the cylinder, the lower electrode plate is embedded in the lower cover plate, the cylinder and the upper and lower electrode plates of the capacitor form a sealed space, the cylinder cylinder and the airbag are communicated through the air inlet pipeline and the air outlet pipeline, and the cylinder cylinder is provided with a piston, the said The upper end surface of the piston and the inner lower end surface of the cylinder are provided with conductive layers, the piston is connected with the push rod, and the capacitor plate and the solenoid valve are both connected to the control module. Its beneficial effects are: in the absence of an electronic control unit, the air spring can adjust the air pressure according to the real-time air pressure change inside the airbag and its voltage feedback, and realize the adaptive change of air pressure to achieve the adaptive change of stiffness. The specific size and specific distribution position of the cylinder can be changed according to the actual situation, which reduces the cost and saves space.

Description

technical field [0001] The invention belongs to vehicle suspension technology, and in particular relates to an air pressure self-adaptive variable air spring and an air pressure control method thereof. Background technique [0002] With the rapid development of the automobile industry, people have higher and higher requirements for the ride comfort and handling stability of the car, and the traditional suspension can no longer meet people's needs. Compared with the traditional passive suspension, the air suspension has nonlinear stiffness and adjustable vehicle height, which can better meet people's needs. Therefore, air suspension is the development direction of vehicle suspension. Moreover, how to further improve the performance of air suspension is also a current research hotspot. [0003] In addition, for cars whose original car is not equipped with air suspension, the original car must be modified in order to improve the performance of the car. However, limited by th...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the deficiency in the performance of the existing air springs, and provide an air pressure self-adaptive variable air spring and its air pressure control method. In the case of a small increase in cost, the change of the internal air pressure can be judged and determined by a simple electronic circuit. Control the state of the solenoid valve and the motor switch, so that the air pressure in the airbag changes adaptively, which can greatly improve the performance of the air spring

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