An energy-feeding semi-active suspension variable damping system and control method

A semi-active suspension and damping control technology, applied in suspension, elastic suspension, machine/engine, etc., can solve problems such as poor road adaptability and energy waste

Active Publication Date: 2020-10-27
XI AN JIAOTONG UNIV
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Problems solved by technology

Its disadvantage is that the adaptability of the road surface is poor, and it cannot guarantee a good damping effect under various road conditions. In addition, it also causes a waste of energy

Method used

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  • An energy-feeding semi-active suspension variable damping system and control method
  • An energy-feeding semi-active suspension variable damping system and control method
  • An energy-feeding semi-active suspension variable damping system and control method

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Embodiment Construction

[0027] In order to further explain the technical means and effects that the invention takes to achieve the intended purpose of the invention, the specific implementation, structure and characteristics of the energy-feeding semi-active suspension variable damping system proposed according to the present invention will be described below in conjunction with the accompanying drawings and embodiments. And its effect, detailed description is as follows.

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] refer to figure 1 , an energy-feeding semi-active suspension variable damping system and control method, wherein the variable damping system includes an energy-feeding actuator and a damping control circuit.

[0030] refer to image 3 , the energy feeding actuator is composed of the outer sleeve 11 connected with the vehicle body, the inner sleeve 12 connected with the chassis, the energy feeding motor 21, the bal...

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Abstract

The invention discloses an energy-fed semi-active suspension variable damping system and a control method thereof, which uses the energy-fed semi-active variable damping system instead of the traditional oil-liquid non-variable damper, and the variable damping system comprises an energy-fed actuator composed of an energy-fed motor and a ball screw mechanism, wherein the energy-fed actuator comprises a rectifier bridge, a DC-DC conversion circuit, energy storage equipment and controller constitute the energy recovery and damping control circuit. According to the road excitation condition, the variable damping system takes the output torque of the feed actuator as the control objective and the armature current of the motor as the control object, and realizes the regulation of damping and theenergy feedback at the same time by adjusting the duty cycle of the DC-DC converter circuit switch tube. The invention can realize the feedback of the vibration energy of the vehicle body, improve the fuel economy of the automobile and realize the damping adjustment of the actuator at the same time, has fast response speed and can effectively improve the ride comfort of the automobile.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle chassis, and in particular relates to an energy-feeding semi-active suspension variable damping system and a control method. Background technique [0002] Suspension system is the general term for all force transmission connection devices between the frame and the axle, and is an important part of the vehicle driving system. The torque caused by these reaction forces is transmitted to the frame to ensure the smoothness of the car. The device used for vibration reduction in the suspension system mainly includes springs and dampers. The performance of the damper largely determines the performance of the suspension system. [0003] The damper of the most widely used suspension system at present has a non-adjustable damping value, which converts the vibration energy caused by the unevenness of the road surface into heat energy and dissipates it. Its disadvantage is that the adaptability to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60G17/015B60G13/18F03G7/00
CPCB60G13/18B60G17/015F03G7/00
Inventor 徐俊蒲晓晖李士盈梅雪松
Owner XI AN JIAOTONG UNIV
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