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Composite damping-adjustable feed energy type active suspension frame actuator and control method thereof

A technology of actuator controller and active suspension, which is applied in the direction of suspension, elastic suspension, transportation and packaging, etc., and can solve problems such as poor fuel economy, limited vibration damping effect, and small inherent damping

Active Publication Date: 2019-03-12
XIAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Passive suspension has constant parameters such as stiffness and damping, so the vehicle's vibration reduction effect is limited; active suspension uses controllable actuators to change the stiffness and damping of the suspension in real time according to road conditions, so as to improve the ride comfort and comfort of the vehicle. Handling stability, but the energy consumption of the active suspension is high, and the fuel economy of the vehicle is poor
Active suspension mainly relies on external energy supply to achieve vibration reduction effect, which has always been an important issue restricting the development of active suspension technology, and when the active suspension actuator fails or fails, its inherent damping is small, and safety is difficult to guarantee

Method used

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  • Composite damping-adjustable feed energy type active suspension frame actuator and control method thereof
  • Composite damping-adjustable feed energy type active suspension frame actuator and control method thereof
  • Composite damping-adjustable feed energy type active suspension frame actuator and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0106] Such as figure 1 , figure 2 A compound damping adjustable energy-feeding active suspension actuator shown includes

[0107] The actuator body,

[0108] Oil storage cylinder 8,

[0109] The working cylinder 26 is located in the oil storage cylinder 8, and its upper port is connected with the upper port of the oil storage cylinder 8;

[0110] The solenoid valve 28 is connected to the outer side wall of the oil storage cylinder 8 and communicates with the inner cavity of the working cylinder 26 through the upper hose 25 passing through the side wall of the oil storage cylinder 8 and the side wall of the working cylinder 26. 8 The lower hose 29 on the side wall is in communication with the inner cavity of the oil storage cylinder 8;

[0111] The power transmission mechanism is connected to the upper end of the working cylinder 26 and the oil storage cylinder 8, and the lower end thereof extends into the working cylinder 26 and is slidably connected to the inner wall of the working...

Embodiment 2

[0115] Such as figure 1 The shown compound damping adjustable energy-feeding active suspension actuator is different from the first embodiment in that: the lower surface of the working cylinder 26 is connected with a compensation valve 30, and the working cylinder 26 is The lower bottom surface is connected with the compression valve 5; the upper port of the oil storage cylinder 8 is connected to the side wall of the upper port of the working cylinder 26 through the oil seal 9; the upper port of the oil storage cylinder 8 and the upper port of the working cylinder 26 are pressed by the actuator through the upper oil seal 23 The cover 22 is connected; the working cylinder 26 and the oil storage cylinder 8 are filled with hydraulic oil. The arrangement of the oil seal 9 and the oil seal 23 ensures the good working condition of the equipment in the sealed state. In this embodiment, the oil seal (9) is an O-type oil seal. The oil seal 9 adopts an O-type oil seal, which can not on...

Embodiment 3

[0117] Such as figure 1 The difference between the composite damping adjustable energy-feeding active suspension actuator shown in the first embodiment is that the lower end of the power transmission mechanism is the piston 7, which is located in the cavity of the working cylinder 26 In the body, the upper and lower surfaces of the piston 7 are respectively connected with the expansion valve 27 and the flow valve 6, the side wall of the piston 7 is slidingly connected with the inner side wall of the working cylinder 26, and the center of the upper surface of the piston 7 is vertically connected with the lower surface of the piston rod 21, The upper end of the piston rod 21 passes through the upper actuator housing 17 connected with the actuator gland 22 and the upper oil seal 23, and the lower surface of the guide slider 20 is fixedly connected in the actuator upper housing 17, and the guide slider 20 The upper surface of the rack 16 is vertically and fixedly connected with a r...

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Abstract

The invention belongs to the technical field of automobile suspension frame systems and particularly relates to a composite damping-adjustable feed energy type active suspension frame actuator and a control method thereof. Through the organic combination of an actuator control system and an actuator body composed of an oil storage cylinder, a work cylinder, a proportional solenoid valve and a power transmission mechanism, the defect of large energy consumption of traditional active suspension frames is overcome; through simple control, not only is the damping effect of a suspension frame improved, but also the vibration energy can be recycled. The actuator can be switched between an active control mode and a feed energy mode when used, and a real-time variable damping effect is achieved. The control operation stability and the reliability are high, faults are unlikely to occur, and frequent maintenance and repair are not needed; the actuator is high in integration degree and practicability, great in use effect and convenient to popularize on the market.

Description

Technical field [0001] The invention belongs to the technical field of automobile suspension systems, and particularly relates to a composite damping adjustable energy-feeding active suspension actuator and a control method thereof. Background technique [0002] When a vehicle is driving on an uneven road, the vibration energy caused by the turbulence of the road, the acceleration and deceleration of the vehicle, and the steering, etc., account for a large part of the vibration energy loss of the vehicle body, but it has been ignored. This part of the energy is mainly caused by the vehicle. The shock absorber converts it into heat energy and dissipates it in the atmosphere. If these vibration energy can be recycled, the energy consumption of the car can be effectively reduced, so as to achieve the purpose of saving energy. [0003] Active suspension can effectively control the body attitude and greatly improve the comfort and passability of the body. However, the current traditiona...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G17/015B60G17/018B60G17/08
CPCB60G17/015B60G17/0182B60G17/08B60G2400/204B60G2400/90B60G2800/91
Inventor 寇发荣许家楠
Owner XIAN UNIV OF SCI & TECH
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