Semi-active control magnetorheological hydraulic mount for automotive powertrain

An automotive powertrain and semi-active control technology, applied in the field of auto parts, can solve the problems that the engine vibration and frame vibration isolation requirements cannot be well met, the engine vibration aggravates NVH, and the comfort requirements are getting higher and higher. Achieve the effect of improving high-frequency dynamic hardening, improving low-frequency vibration isolation performance, and compact structure

Inactive Publication Date: 2011-01-05
JILIN UNIV
View PDF7 Cites 44 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, on the one hand, with the development of automobile design towards high torque and light weight, the vibration of the engine has increased and the NVH (noise, vibration and harshness) characteristics of ...

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Semi-active control magnetorheological hydraulic mount for automotive powertrain
  • Semi-active control magnetorheological hydraulic mount for automotive powertrain
  • Semi-active control magnetorheological hydraulic mount for automotive powertrain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] A powertrain semi-active control magneto-rheological hydraulic mount of the present invention comprises a rubber main spring (2), a metal frame (12), a rubber bottom film (11), a bottom frame (10) and a liquid channel assembly, The liquid channel assembly is composed of an inertial channel body, a decoupling membrane (8), a magnetically permeable channel body (5) and a coil base (3). The decoupling membrane (8) is arranged in the center and is fixed on the inertial channel body or the guide In the middle hole of the magnetic channel body (5), an inertial channel (16) is provided in the inertial channel body, and the magnetic channel body (5) and the coil seat (3) are fixed by rivets (18) to form a controllable magnetic field strength The channel (15), the electromagnetic coil (4) is fixed in the coil seat (3), and the wire is drawn out and connected to the power supply through the lead bolt (13).

[0041] The controllable magnetic field intensity channel (15) is arrange...

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

PUM

No PUM Login to view more

Abstract

The invention relates to a semi-active control magnetorheological hydraulic mount for an automotive powertrain, which belongs to a semi-active control element used for vibration control of an engine and is an engine mount filled with magnetorheological fluid, wherein the viscosity of the fluid changes along with the change of the strength of a magnetic field, and the semi-active control magnetorheological hydraulic mount mainly comprises a metal framework, a rubber main spring, a coil holder, an electromagnetic coil, a magnetic conductive channel body, an inertia channel assembly, a rubber basement membrane, a bottom framework and the like, and can control the strength of applied current according to the working condition of the engine by utilizing the viscosity of the magnetorheological fluid and the following performance of the strength of the magnetic field, further change the viscosity of the fluid, lead the vibration of the engine to be well attenuated in a wider frequency band and further actively isolate the transfer of vibration noise of the engine into an automobile in the wider frequency band. A vibration damper for the magnetorheological hydraulic mount for the engine can effectively isolate the vibration of the engine, reduce the noise in the automobile and improve the NVH properties of the whole automobile, thereby having great market potential and broad prospects.

Description

Technical field: [0001] The invention relates to a magneto-rheological hydraulic mount with semi-active control of a power assembly, which belongs to the field of auto parts. Background technique: [0002] In recent years, on the one hand, with the development of automobile design towards high torque and light weight, the vibration of the engine has increased and the NVH (noise, vibration and harshness) characteristics of the vehicle have deteriorated. The comfort requirements are getting higher and higher, so that the traditional powertrain passive mount cannot well meet the vibration isolation requirements between the engine vibration and the frame. The introduction of engine magneto-rheological hydraulic mount damping device can effectively isolate the transmission of engine vibration and noise to the interior of the vehicle. Compared with traditional passive mounts and other forms of active mounts such as piezoelectric mounts, the powertrain magneto-rheological hydrauli...

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

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F16F9/53
CPCF16F13/305
Inventor 史文库王雪婧
Owner JILIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap