a suspension device

Abstract

The invention relates to a hanging device. The hanging device is arranged between a left wheel and a right wheel under a vehicle body, and comprises a first wheel bracket, a second wheel bracket, a first air spring, a second air spring, a first longitudinal swinging assembly, a second longitudinal swinging assembly, a first Panhard rod, a second Panhard rod, a first air spring support frame, a second air spring support frame and a vehicle body welding support frame. The hanging device has the beneficial effects that the air springs are used for buffering vibration, the taking comfort is improved, a magnetorheological shock absorber is used for attenuating the vibration, the damping is regulated for absorbing energy, the vibration is perfectly attenuated, the structure and material selection of a longitudinal swinging arm is optimized, higher intensity impact and fatigue durability can be borne, in addition, the weight is relatively light, the structure design of stabilizing rods is delicate and ingenious, the material selection is excellent, higher torsion resistance, rigidity and fatigue resistance characteristics are realized, and good effects are achieved for realizing operation and control stability.

Description

technical field [0001] The invention relates to a suspension device, in particular to a chassis rear suspension device for a four-wheel drive pure electric vehicle, belonging to the field of new energy vehicles. Background technique [0002] With the increasing consumption of petroleum energy in the world and the deteriorating environment, environmentally friendly electric vehicles driven by electricity are getting more and more attention, and their development is also getting faster and faster. Electric vehicles have various structures. In order to reduce R&D costs and shorten the development cycle, electric vehicles are mainly designed and manufactured based on the well-developed fuel vehicle body and frame. The main difference between electric vehicles and fuel vehicles is their different drive systems. Fuel vehicles are driven by engines, while electric vehicles are driven by electric motors. The four-wheel-drive electric vehicle is driven by a single motor for the fron...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems in the prior art, the present invention provides a suspension device to overcome the shortcomings of the current four-wheel drive rear drive device of pure electric vehicles, such as the small space and poor suspension performance, to expand the driving form of pure electric vehicles, optimize The handling and comfort of four-wheel drive electric vehicles

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