Integral bridge type Watt connecting rod composite suspension

Abstract

The invention provides an integral bridge type Watt connecting rod composite suspension which comprises a left longitudinal arm, a right longitudinal arm, a left transverse connecting rod, a right transverse connecting rod, a left damping mechanism, a right damping mechanism and a connecting arm arranged in the height direction of a vehicle body. The rear ends of the left longitudinal arm and the right longitudinal arm are connected with the rear axle, and the front ends of the left longitudinal arm and the right longitudinal arm are hinged with the vehicle body; the middle of the connecting arm is hinged to a connecting piece which is fixedly connected with the bottom of the vehicle body. One end of the left transverse connecting rod is hinged to the left end of the rear axle, the other end of the left transverse connecting rod is hinged to one end of the connecting arm, one end of the right transverse connecting rod is hinged to the right end of the rear axle, and the other end of the right transverse connecting rod is hinged to the other end of the connecting arm. The lower ends of the left damping mechanism and the right damping mechanism are connected with the rear axle, and the upper ends of the left damping mechanism and the right damping mechanism are connected with the bottom of the vehicle body. According to the invention, the tire wear can be optimized, and meanwhile, the roll control and operation stability performance of the whole vehicle and the coordination of the suspension are improved.

Description

technical field [0001] The invention relates to the technical field of automobile suspension, in particular to an integral bridge-type Watt-link composite suspension. Background technique [0002] Composite suspension usually has torsion beam suspension based on torsion beam, multi-link suspension based on multi-link, and trailing arm suspension based on trailing arm. Most of the existing trailing arm suspensions use a lateral thrust rod to control the lateral movement between the axle and the vehicle body. One end of the lateral thrust rod is connected to the suspension trailing arm, and the other end is connected to the vehicle body. When the wheel jump drives the suspension to move, the lateral thrust rod will move in a curved line with the joint point of the vehicle body as the center of the circle. Because the lateral motion limited by the lateral thrust rod is incomplete, the curved motion makes the motion of the rear suspension asymmetrical. Therefore, when the vehic...

AI Technical Summary

Problems solved by technology

Because the lateral motion limited by the lateral thrust rod is incomplete, the curved motion makes the motion of the rear suspension asymmetrical. Therefore, when the vehicle is turned by the trailing arm suspension, the comfort and stability of the vehicle will greatly change with the steering angle. Harsh; under the impact of the unsprung mass, the body tends to yaw. In extreme compound working conditions, severe oversteering and tail flicking may occur, affecting driving safety; the lateral movement of the rear axle cannot be avoided when the curve is used, which will cause tire wear , and at the same time, it is impossible to maximize the use of ground adhesion to affect the stability of the vehicle

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