Rear suspension for automobile

A technology for rear suspension and vehicles, which is applied to suspensions, elastic suspensions, vehicle components, etc. It can solve problems such as complex structure, difficult control, and improved chassis stability, so as to achieve the effect of improving chassis performance

Active Publication Date: 2008-05-28
SHANGHAI BYD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The rear wheel steering is not controlled by the driver, but the ECU collects vehicle driving information and controls the forward and reverse steering of the rear wheels in a small amount. The disadvantage of this type of traditional 4WS is that the steering system that controls the rear wheel steering and the rear suspension that controls the beating of the rear wheels are The two separate systems are not related to each other in terms of design, mechanical mechanism and control, so not only the structure is complicated, the control is difficult, but also the stability of the chassis is limited.

Method used

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

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Embodiment Construction

[0022] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0023] A rear suspension for a vehicle, wherein a five-bar linkage mechanism, the five-bar linkage mechanism includes a traction arm 2, an upper arm 3, a lower arm 4, a trailing arm 5 and a guide arm 6, the guide arm is a hydraulic mechanism, including a hydraulic Cylinder 6b and piston rod 6a. Both ends of the guide arm 6 are respectively connected with the wheel steering knuckle 8 and the sub-frame 1 through ball pins.

[0024] Wherein the traction arm 2, the upper arm 3, the lower arm 4, and the trailing arm 5 are all rigid arms, and their two ends are respectively connected with the wheel steering knuckle 8 and the sub-frame 1 through rubber bushes or ball pins with a set rigidity; 6 and the electronic valve with electric motor form a hydraulic circuit, that is, it is connected to t...

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Abstract

The invention discloses a vehicle rear suspension, comprising a multi-linkage mechanism; wherein, the mechanism is provided with a guide arm which is a hydraulic mechanism, which comprises a hydraulic cylinder and a piston pulling rod. The multi-linkage suspension of the invention is provided with the guide arm which constitutes part of a suspension system and is also an execution element of a steering hydraulic loop, and implements the harmonic control between 4WS and the suspension, thus improving the performance of a chassis to most extent.

Description

technical field [0001] The invention relates to a vehicle rear suspension. Background technique [0002] Suspension is an important component system in vehicle driving system, which directly affects the stability, operability and comfort of the vehicle. According to the front and rear wheels controlled, it can be divided into front suspension and rear suspension. There are many types of rear suspension, such as torsion bar type, trailing arm type, double wishbone type, multi-link type, etc. Among them, the five-link type is also the rear suspension type often used by mid-to-high-end cars. The parameters of the five-link rear suspension are different for different models. [0003] Usually the vehicle is designed as two front-wheel steering, but in order to improve operational stability and reduce the turning radius, rear-wheel steering has also entered people's field of vision, namely four-wheel steering (hereinafter referred to as 4WS). The traditional 4WS design idea is ...

Claims

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Application Information

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IPC IPC(8): B60G13/08
Inventor 杨建纯曾浩陈楷青
Owner SHANGHAI BYD
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