A dynamic vibration absorber for an electric drive assembly and a dynamic vibration-absorbing torsion-resistant rear mount

A dynamic vibration absorber and dynamic vibration absorption technology, applied in the direction of electric power plant, power plant, vehicle parts, etc., can solve the technical requirements that cannot meet the light weight of electric vehicles, the vibration isolation and fatigue performance of the mount cannot be taken into account, and it cannot adapt to pure electric vehicles. Electric vehicles, such as high torque, achieve the effects of light weight, increased safety and reliability, and improved vibration isolation performance

Active Publication Date: 2022-04-22
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing motor vibration isolation mounts, usually rubber-type vibration isolators, have the problem of high-frequency hardening, which affects the vibration isolation performance of the mount; at the same time, the existing bush-type mounts still use the traditional fuel vehicle The design concept, without targeted segmented stiffness design, cannot adapt to the current high torque and low fluctuation excitation characteristics of pure electric vehicles, resulting in the inability to balance the vibration isolation and fatigue performance of the mount; in addition, the existing mount brackets are basically Metal brackets cannot meet the technical requirements of electric vehicles for lightweight vehicles

Method used

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  • A dynamic vibration absorber for an electric drive assembly and a dynamic vibration-absorbing torsion-resistant rear mount
  • A dynamic vibration absorber for an electric drive assembly and a dynamic vibration-absorbing torsion-resistant rear mount
  • A dynamic vibration absorber for an electric drive assembly and a dynamic vibration-absorbing torsion-resistant rear mount

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Embodiment Construction

[0028] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and preferred embodiments, but the protection scope of the present invention is not limited to the following specific embodiments.

[0029] This embodiment provides an electric drive suspension system. The layout of the electric drive suspension system adopts a three-point centroid layout, including left suspension, right suspension and rear suspension, and the left suspension and right suspension are symmetrically arranged. , its connection line is close to the torsion axis of the electric drive, the rear suspension is far away from the center of mass of the electric drive, and the rear suspension bears much larger vertical and longitudinal forces than the front suspension, among which the vertical force is the largest, so this is It is required that the vertical (vertical) stiffness of the rear sus...

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Abstract

The invention discloses a dynamic vibration absorber for an electric drive assembly, which comprises a T-shaped plate and a damping layer. The T-shaped plate includes a vibration-absorbing plate and a vibration-reducing block connected with a suspended bracket. The blocks are connected, and the damping layer is arranged on both sides of the vibration-absorbing block. The invention also discloses a dynamic vibration-absorbing torsion-resistant rear mount for an electric drive assembly, including a bushing, a bracket and the above-mentioned dynamic vibration absorber, the bushing is arranged on the bracket, and the dynamic vibration absorber fixed on one side of the bracket. The invention has the advantages of high level of vibration isolation and noise reduction, good torsion resistance and durability, light weight and the like.

Description

technical field [0001] The invention relates to the technical field of vibration isolation and noise reduction for new energy vehicles, in particular to a dynamic vibration absorber for an electric drive assembly and a dynamic vibration-absorbing torsion-resistant rear mount. Background technique [0002] The power unit of an electric vehicle is usually an integrated distribution of a motor and a gearbox, also known as an electric drive assembly. Due to the change of the inductance of the motor and the degree of magnetic saturation produced by the permanent magnet and the presence of a large number of space harmonic factors in the rotor magnetic field, the output torque of the motor fluctuates to a certain extent. This fluctuating torque is transmitted to the vehicle body through the suspension system, which easily leads to longitudinal and vertical vibration problems and affects the vibration comfort of passengers. At the same time, the working characteristics of the motor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K1/00
CPCB60K1/00
Inventor 胡金昌陈颜查国涛傅荣王心龙贺才春
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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