An Air Suspension System for the Follow-up Rear Axle of a Light Truck

Abstract

The invention discloses an air suspension system of a light-duty truck follow-up rear axle. The air suspension system comprises an air suspension device and an air pressure control assembly; the air suspension device comprises two longitudinal beams which are parallelly arranged, at least a group of single rear axle assembly is arranged between the two longitudinal beams; and each single real axle assembly comprises cross beams which are connected between the two longitudinal beams, height sensors are arranged on the cross beams, the cross beams are connected with axles which are fixed between the two longitudinal beams through gas bags and vibration damper, the two ends of each axle are connected with wheels through outer swing arms, the gas bags and the two longitudinal beams are parallelly arranged, and the gas bags are connected with the air pressure control assembly. According to the air suspension system of the light-duty truck follow-up rear axle, the problems that a light-duty truck needs a large vertical arranging space and is complicated in structure and poor in lateral stability in the prior art are solved, impact can be reduced in the running process of the whole truck, and riding performance of the whole truck is improved.

Description

technical field [0001] The invention belongs to the technical field of motor vehicle control; in particular, it relates to an air suspension system for a follow-up rear axle of a light truck. Background technique [0002] Domestic trucks can generally be divided into three types: light, medium, and heavy; among them, those with a load capacity of less than 3.5 tons are light trucks. With the continuous growth of my country's national economy and the gradual advancement of urban-rural integration construction, urban-rural trade has become particularly active, and light trucks have become an indispensable means of transportation in urban-rural trade. [0003] At present, affected by many factors such as vehicle structure, technology, and cost, light trucks mostly adopt leaf spring suspension or vertically arranged air spring suspension system. In the former, the leaf spring bears all the vertical load and the impact of the road during driving. The vibration isolation and ride...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide an air suspension system for the follow-up rear axle of a light truck to solve the problem that the air suspension system of a light truck in the prior art requires a large vertical arrangement space, complex structure, and lateral problems such as poor stability, and at the same time, the system can reduce the impact of the vehicle during driving and improve the ride comfort of the vehicle

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