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Subframe structure

A sub-frame and vehicle frame technology, which is applied in the substructure, vehicle parts, power plant, etc., can solve the problems of smaller degrees of freedom and larger elastic body size, achieve miniaturization of attenuation performance, and improve anti-vibration effect Effect

Active Publication Date: 2019-02-01
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when considering the support rigidity of the frame for the vehicle power plant and the vertical resonance frequency for the purpose of vibration interruption, there is a tendency for the size of the elastic body itself to increase.
Also, when the size of the elastic body increases, the size of the assembly for the floating bearing increases and the degree of freedom in design decreases

Method used

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Examples

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Embodiment

[0128] Next, an example of the present invention in which it was verified that the sound sensitivity can be reduced by reducing the above-mentioned response will be described below.

[0129] In this example, if Figure 14 As shown, the response when the center of elasticity of the second elastic body 74 was moved from E2 to E3 was measured, and the acoustic sensitivity at this time was measured.

[0130] Figure 16 It is a graph which verified the effect of the response reduction in this Example. The horizontal axis is the resonant frequency, and the vertical axis is the response. Figure 17 It is a graph verifying the effect of reducing the sound sensitivity with respect to vibration input in this example. The horizontal axis is the resonance frequency, and the vertical axis is the sound sensitivity.

[0131] It should be noted, Figure 16 and Figure 17 In, the dotted line indicates the position where the elastic center of the second elastic body 74 is located at E2 (r...

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Abstract

The present invention provides a subframe structure that reduces the vibration input to the subframe from the road surface and utilizes the existing subframe structure to further improve the anti-vibration effect. The subframe structure (10) includes: a first anti-vibration device (100a) and a first elastic body (64) arranged on the front cross member (20) to floatly support the power unit (P); and a first elastic body (64) arranged on the rear cross member. The second anti-vibration device (100b) and the cylindrical bushing (86) are installed with the bracket (32) of (18) to floatly support the power unit (P). In addition, the wheels (W) that are grounded on the grounding surface are elastically supported by suspension lower arms (15) arranged on the lower side of the subframe structure (10).

Description

technical field [0001] The invention relates to a subframe structure of a vehicle. Background technique [0002] In a vehicle such as an automobile, a suspension component such as a suspension arm or a stabilizer, which is fixed to a front side frame serving as a vehicle frame, is attached. Further, a vehicle is provided with a subframe that supports a vehicle power unit such as an engine and / or an electric motor via a vibration isolator. [0003] For example, in Patent Document 1, as Figure 18 As shown, there is disclosed a vibration-absorbing elastic body 1 made of rubber that absorbs vibrations generated on a vehicle body. The vibration-absorbing elastic body 1 is composed of two cylindrical elastic bodies 2a, 2b and metal discs 3a, 3b interposed between the lower sides of the two elastic bodies 2a, 2b, respectively. It should be noted that, in Figure 18 Among them, reference numeral 4 denotes left and right brackets, reference numeral 5 denotes a beam, and reference ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D21/02
CPCB60K5/1216B60K5/1283B62D21/11B60K5/1208
Inventor 平野正隆宫原哲也寺田匡宏笛木俊吾藤川刚吉田元
Owner HONDA MOTOR CO LTD
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