Energy storage suspension with left suspension and right suspension being communicated

Abstract

The invention relates to vehicle suspensions, in particular to an energy storage suspension. A left suspension and a right suspension of the energy storage suspension are connected through a cross bar, and an inerter is used in the energy storage suspension. According to the energy storage suspension with the left suspension and the right suspension being communicated, the upper end of a left wheel vibration isolator and the lower end of a left vehicle body vibration isolator are coaxially hinged to the left end of the cross bar, the upper end of the right wheel vibration isolator and the lower end of the right vehicle body vibration isolator are coaxially hinged to the right end of the cross bar, and the cross bar is hinged to the middle portion of a suspension beam and is capable of rotating around a middle hinge shaft. By means of the beam which is connected with the left suspension and the right suspension, all the static loads of the vehicle body act on the left wheel vibration isolator and the right wheel vibration isolator, and thus the technical defect that the inerter is easy to puncture under the action of the vehicle body loads is overcome. By means of the vehicle body vibration isolators, the lower frequency peak of the vehicle body vertical acceleration is restrained. By means of the wheel vibration isolators, the high frequency peak of tyre dynamic loads is restrained. By means of the cross bar which are connected with the left suspension and the right suspension, the stress interaction of the left suspension and the right suspension is reduced, lateral incline of the vehicle body is reduced, therefore, the steering stability ofe the vehicle is improved, and the purposes that people sit in the vehicle comfortably and a driver drives safely are achieved.

Description

technical field [0001] The invention relates to a vehicle suspension, in particular to a vehicle suspension which adopts a horizontal bar penetrating the left and right suspensions and uses an inerter. Background technique [0002] Suspension has a significant impact on vehicle handling stability and ride comfort. The damping and stiffness of traditional passive suspension cannot be changed with the change of road surface conditions, so it is difficult to meet people's requirements for vehicle suspension performance. Although active and semi-active suspension technologies can improve the dynamic performance of vehicles, the cost of active suspension is relatively high, and semi-active suspension has time-lag problems, so there are few applications in real vehicles. Chinese and foreign researchers are actively exploring New technology to improve suspension performance. In 2003, based on the theory of electromechanical similarity, Smith proposed an ideal inerter that is comp...

AI Technical Summary

Problems solved by technology

[0003] Chinese patent 200810123830.8 discloses a vehicle suspension using an inerter, including a parallel body composed of a damper and an inerter, and a parallel body composed of a damper and a spring. The two parallel bodies are connected in series to form a two-stage vehicle suspension , in theory, it can buffer and attenuate the shock and vibration caused by uneven road surface in the whole frequency domain. The problem that the parallel body with the damper fails due to "breakdown", the suspension has practical value

However, in the actual application process, the oblique arrangement of the wheel vibration isolator and the greater inclination angle with the swing of the upper swing arm will cause excessive wear of the piston, which may lead to damage to the wheel vibration isolator in severe cases

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