Multi-mode semi-active hydraulic suspension

A hydraulic mount, semi-active technology, applied in the direction of power plant, jet propulsion device, internal combustion propulsion device, etc., can solve the problems that cannot meet the design requirements well, the working conditions of the engine are complicated, and the coverage frequency range is wide, etc., to achieve broadening Frequency range of vibration isolation, improvement of vibration isolation effect, effect of improvement of vibration isolation effect

Inactive Publication Date: 2016-05-04
CHONGQING CHANGAN AUTOMOBILE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The stiffness and damping of the existing hydraulic mounts are fixed and cannot be changed. They can only achieve a good vibration isolation effect in a certain frequency range. However, the working conditions of the engine are complicated, and each working condition covers a wide frequency range. The existing hydraulic mounts The installation cannot take into account the entire frequency range, so the vibration isolation effect of the suspension is poor under certain working conditions. For example, at low frequencies, large stiffness and large damping are required, and at high frequencies, small stiffness and small damping are required.
does not meet its design requirements well

Method used

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  • Multi-mode semi-active hydraulic suspension

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Effect test

Embodiment 1

[0024] Such as figure 1 As shown, the multi-mode semi-active hydraulic mount of the present invention includes a housing with an open top, a rubber main spring 2 arranged and blocked at the top opening of the housing, and a rubber bottom film 4 arranged at the inner bottom of the housing. The rubber main spring is provided with a base 19, the housing is made of a magnetically isolated aluminum alloy material, the base of the housing is made of metal materials such as copper and iron, and the base is provided with a liquid injection vent 20 , the liquid injection exhaust hole runs through the rubber main spring, and the rubber main spring and the upper shell, as well as the rubber main spring and the base are fixed by fluidization process, and the large diameter hole structure with both functions of liquid injection and exhaust is used as the The liquid injection vent hole simplifies the structure of the suspension and has better sealing performance. It also includes a connecti...

Embodiment 2

[0029] Such as figure 1As shown, the multi-mode semi-active hydraulic mount of the present invention includes a housing with an open top, a rubber main spring 2 arranged and blocked at the top opening of the housing, and a rubber bottom film 4 arranged at the inner bottom of the housing. The rubber main spring is provided with a base 19, the housing is made of a magnetically isolated aluminum alloy material, the base of the housing is made of metal materials such as copper and iron, and the base is provided with a liquid injection vent 20 , the liquid injection exhaust hole runs through the rubber main spring, and the rubber main spring and the upper shell, as well as the rubber main spring and the base are fixed by fluidization process, and the large diameter hole structure with both functions of liquid injection and exhaust is used as the The liquid injection vent hole simplifies the structure of the suspension and has better sealing performance. It also includes a connectin...

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Abstract

The invention discloses a multi-mode semi-active hydraulic suspension which comprises a housing, a rubber main spring, a connecting rod and a rubber bottom membrane, and further comprises a rotating electromagnetic valve, wherein an opening is formed in the top end of the housing; the rubber main spring is arranged in and blocks the opening; the connecting rod penetrates the rubber main spring; the rubber bottom membrane is arranged at the inner bottom of the housing; the housing comprises an upper housing and a lower housing which are connected with each other via bolts; a sealed cavity filled with liquid ethylene glycol is formed between the rubber main spring and the rubber bottom membrane; a partition board dividing the cavity into an upper cavity and a lower cavity is arranged in the cavity; an inertia passage communicated with the upper cavity and the lower cavity is formed in the partition board; a flow block piece is arranged in the inertia passage; the rotating electromagnetic valve is used for driving the flow block piece to rotate. The multi-mode semi-active hydraulic suspension has the advantages that the vibration frequency isolation range can be widened; the vibration isolation effect is improved.

Description

technical field [0001] The invention relates to a vibration isolation device, in particular to a multi-mode semi-active hydraulic mount. Background technique [0002] At present, people have higher and higher requirements for the ride comfort and comfort performance of vehicles, and the engine is one of the main vibration sources of the vehicle, which has a great impact on the vibration of the vehicle body and the noise inside the vehicle. The transmission route is through the powertrain via The suspension device is then transmitted to the frame. As the main component of the engine vibration isolation system, the engine mount's performance directly affects the comfort of the occupants and the working life of the powertrain components. Its performance is mainly reflected in the transmission rate of powertrain vibration to body force. The lower the transmissibility, the better the vibration isolation effect of the mount. [0003] The stiffness and damping of the existing hyd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F13/26B60K5/12
CPCF16F13/262B60K5/1208
Inventor 郑玲徐小敏付江华任玥刘巧斌犹佐龙
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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