Transmission shaft intermediate support system and active control method
A technology of intermediate support and transmission shaft, which is applied in the direction of control devices, shock absorbers, transportation and packaging, etc., and can solve complicated problems such as the inability to realize active control and the lack of electronic control systems
Active Publication Date: 2022-07-29
CHINA FIRST AUTOMOBILE
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Problems solved by technology
However, the actual working conditions of the vehicle are complicated, and it is difficult for two sets of stiffness damping to meet the complex and changeable stiffness and damping requirements of the vehicle.
And it does not have an electronic control system, so it cannot realize active control
Method used
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[0038] In order to make the objectives, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below with reference to the specific embodiments and the accompanying drawings.
[0039] It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of the present specification shall have the usual meanings understood by those with ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and similar terms used in one or more embodiments of this specification do not denote any order, quantity, or importance, but are merely used to distinguish the various components. "Comprises" or "comprising" and similar words mean that the elements or things appearing before the word encompass the elements or things recited after the word and their equivalents, but do not exclude other elements or things. Words like "connected" or "connec...
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The invention provides a transmission shaft middle supporting system and an active control method. The transmission shaft middle supporting system comprises a magnetorheological fluid storage bag sub-assembly and an electromagnetic support sub-assembly. The magnetorheological fluid storage bag sub-assembly comprises a fluid storage bag and a framework structure for limiting the deformation direction of the fluid storage bag, and the fluid storage bag is filled with magnetorheological fluid; the electromagnetic support sub-assembly enables fluid characteristics of magnetorheological fluid to generate specific changes through a magnetic field. According to the description, the liquid storage bag filled with the magnetorheological fluid serves as a main spring for absorbing and attenuating vibration of the transmission shaft, magnetic fields with different intensities are formed on the outer ring of the liquid storage bag by controlling the current intensity, and therefore the magnetorheological fluid is controlled to form different rigidities and damping; therefore, the vibration transmitted from the transmission shaft to the vehicle body floor can be better attenuated under various working conditions. In addition, the invention further provides an active control method, signals of the whole vehicle are collected, the magnetic field with the corresponding strength is generated according to the signals of the whole vehicle, and the magnetorheological fluid generates corresponding damping and rigidity.
Description
technical field [0001] One or more embodiments of this specification relate to the technical field of automobiles, and in particular, to a transmission shaft intermediate support system and an active control method. Background technique [0002] The drive shaft is an important transmission component connecting the powertrain and the main reducer. It is directly connected to the body floor through the intermediate support. The vibration and force of the drive train will be transmitted to the body floor through the intermediate support, which directly affects the NVH performance of the vehicle. [0003] At present, the transmission shaft in the industry adopts a simple rubber main spring-type intermediate support, and its stiffness and damping are constant and cannot be adjusted. However, the actual working conditions of the whole vehicle are very complex. For example, the intermediate support stiffness and damping required for high-speed driving conditions on paved roads and ...
Claims
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Login to View More IPC IPC(8): F16F13/30B60K17/24
CPCF16F13/305B60K17/24F16F2230/18
Inventor 于东洋郝能伟秦臻魏长城林小凤刘越徐立辉张益智
Owner CHINA FIRST AUTOMOBILE