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Rear wheel suspension for automobile

A suspension device, rear wheel technology, applied in the direction of suspension, wheel, elastic suspension, etc., can solve the problems of increased load noise, inability to ensure the practicability of the car, etc., to eliminate unnatural movements and achieve excellent handling stability. Effect

Inactive Publication Date: 2008-09-17
MAZDA MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this way, the vibration and noise caused by the elastic bush cannot be completely blocked, so the load noise increases, and the noise generated by the resonance of the connecting rod will also spread to the entire vehicle body, and it cannot be guaranteed as a car. Practicality

Method used

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  • Rear wheel suspension for automobile
  • Rear wheel suspension for automobile
  • Rear wheel suspension for automobile

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Experimental program
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Embodiment -

[0134] The structure of the present invention is not limited to the above-described embodiments, and various other structures may be included. That is, in the above-mentioned embodiment, the left and right rear suspensions A, A are attached to the vehicle body through the subframe 3, but the present invention is not limited thereto, and the rear suspensions A, A may be directly attached to the vehicle body.

[0135] In addition, in the rear suspension A of the above-mentioned embodiment, rubber bushings 26 are arranged at the connecting parts of the five links 6 to 10 on the vehicle body side, and the end parts on the wheel side are mounted by ball joints 27. On the wheel stay 11, but not limited thereto, rubber bushes may be provided on both ends of any one link. Also, the elastic bush is not limited to the rubber bush 26, and may be a resin product having desired elasticity.

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Abstract

In a multi-link rear suspension ( A ) in which a wheel support ( 11 ) is connected to a vehicle body through five links ( 6-10 ) and vehicle body side ends of the links are provided with rubber bushes ( 26 ), respectively, the lower end of a damping device ( 14 ) formed by coaxially arranging a coil spring ( 12 ) and a damper ( 13 ) is pivoted to a portion of the wheel support ( 11 ) located toward the inside of the vehicle body so that the vertical reaction force of the damping device ( 14 ) produces a moment Mn toward negative camber on a rear wheel (2) . The moment Mn is set to be always larger than a moment Mp toward positive camber produced by a side force on the outside rear wheel. The damping device ( 14 ) is disposed with respect to a suppositive king pin axle K so that the vertical reaction force thereof produces a moment toward toe-in on the rear wheel ( 2 ). In this manner, the multi-link suspension provides a sharp driving feeling applicable even for a sports car while maintaining a good ride through the involvement of the rubber bushes (26).

Description

technical field [0001] The invention relates to a rear wheel suspension device of an automobile, in particular to a multi-link suspension composed of five I-shaped connecting rods. Background technique [0002] A conventional multi-link suspension is composed of five I-shaped links, and each link has an elastic bushing at least at its end on the vehicle body side (for example, refer to Japanese Patent Application Laid-Open No. 2-38106). This multi-link suspension composed of 5 I-shaped links can arrange each I-shaped link to correspond to 5 degrees of freedom of motion except the up and down stroke of the rear wheel, so that the rear wheel The movement of the wheels is constrained to be optimal and thus a form of suspension with high performance positioning. [0003] In general, however, multi-link suspensions suffer from stiffness issues, especially in configurations where the links are mounted via elastic bushings, as mentioned earlier. That is, when the wheel is subject...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60G3/00B60G3/18B60G3/20B60G3/24B60G3/26B60G7/00B60G7/02B60G7/04
CPCB60G2204/129B60G3/24B60G2200/184B60G3/20B60G2200/462B60G3/26B60G2206/0114B60G2200/46B60G2200/156B60G2204/148B60G2204/128B60G2200/422B60G2204/143B60G2204/15B60G2202/312
Inventor 小田昌司小山敏秀安藤文隆渡边正人
Owner MAZDA MOTOR CORP
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