Oil-gas suspension with volume-variable additional gas chamber and control method of oil-gas suspension

A technology of adding air chambers and oil-air suspensions, applied in suspensions, elastic suspensions, transportation and packaging, etc., can solve the problems of energy consumption of stepper motors, achieve improved shock absorption performance, and wide adjustment range of stiffness and damping , Stiffness and damping adjustment range change effect
CN105835649AInactive Publication Date: 2016-08-10JIANGSU UNIV
6 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGSU UNIV
Publication Date
2016-08-10
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention belongs to the technical field of automotive suspensions and provides an oil-gas suspension with a volume-variable additional gas chamber and a control method of the oil-gas suspension. The oil-gas suspension comprises a detection mechanism, an execution mechanism, the additional gas chamber, an additional hydraulic cylinder, an oil-gas suspension body, an oil tank and an electronic control unit. By detecting the vehicle speed, the vehicle body vertical acceleration, the vehicle transverse acceleration and liquid pressure signals of a lower cavity of the additional gas chamber and a high-pressure oil storage tank, the electronic control unit achieves adjustment of the pressure of hydraulic oil in the additional gas chamber by controlling the execution mechanism; and high-pressure hydraulic oil is generated by the additional hydraulic cylinder through energy generated during vibration of a vehicle, so that pressure of nitrogen in the additional gas chamber is adjusted, and accordingly the rigidity of the oil-gas suspension body is adjusted. The additional hydraulic cylinder can achieve the functions of a shock absorber, and meanwhile energy waste is reduced. According to the oil-gas suspension with the volume-variable additional gas chamber and the control method of the oil-gas suspension, the rigidity adjustment range is wide; and meanwhile, due to the fact that throttling holes have a damping function, the smoothness of the vehicle is better, and the riding comfort is improved advantageously.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of automobile suspension devices, and in particular relates to an oil-pneumatic suspension with a variable-volume additional air chamber and a control method thereof. Background technique

[0002] In recent years, active oil-pneumatic suspensions have been used on some high-end cars. Active oil-pneumatic suspensions are new types of automotive suspensions that can automatically adjust the stiffness and height of suspension elastic elements. It has oil pumps that provide high-pressure oil to oil-pneumatic springs. The wheels have oil-pneumatic springs that can be individually adjusted, and are controlled by an electronic control system, which can well improve the ride comfort and handling stability of the car. At present, oil-pneumatic suspensions generally use multi-stage accumulators or additional high-pressure tanks to adjust the stiffness, but the stiffness is adjusted to a fixed value and the adjustment ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More