Method for recovering vibration energy of rear axle of electric automobile

Abstract

The invention provides a method for recovering vibration energy of rear axle of an electric automobile. The method for recovering the vibration energy of the rear axle of the electric automobile comprises the steps of mounting a hydraulic cylinder between a frame and the rear axle of the electric automobile in a floating manner; forming a first oil port in a cavity, without a rod, of the hydrauliccylinder; forming a second oil port is in a cavity, with a rod, of the hydraulic cylinder; connecting an electromagnetic valve set to the first oil port and the second oil port; measuring a distancebetween the frame and the rear axle to obtain distance data; setting a time interval; when a distance measured within the time interval is reduced in the electric automobile running process, enablinghydraulic oil in the cavity without the rod to be drained into an oil tank via the first oil port, the electromagnetic valve set and a power generator by controlling the electromagnetic valve set; when the distance measured within the time interval is increased, enabling hydraulic oil in the cavity without the rod to be drained to the oil tank via the second oil port, the electromagnetic valve setand the power generator by controlling the electromagnetic valve set; and using the power generator to generate power and storing electric energy into a storage battery of the electric automobile. Byusing the method for recovering the vibration energy of the rear axle of the electric automobile, higher electric energy conversion efficiency is realized.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to a method for recovering the vibration energy of the rear axle of the electric vehicle. Background technique [0002] With the development of new energy electric vehicles, vehicle energy recovery has received more and more attention. During the driving process of electric vehicles, due to the influence of factors such as uneven road surface and vehicle acceleration and deceleration, the up and down displacement between the frame and the rear axle will occur, which will generate vibration energy; at present, the shock absorber is generally used for direct vibration reduction Filtration causes this part of the vibration energy to not be effectively recovered and utilized; therefore, it is necessary to design a recovery method to recover the vibration energy. Contents of the invention [0003] In view of the above situation, the present invention provides a method for recovering t...

AI Technical Summary

Problems solved by technology

During the driving process of electric vehicles, due to the influence of factors such as uneven road surface and vehicle acceleration and deceleration, the up and down displacement between the frame and the rear axle will occur, which will generate vibration energy; at present, the shock absorber is generally used for direct vibration reduction Filtration, this part of the vibration energy cannot be effectively recovered and utilized; therefore, it is necessary to design a recovery method to achieve the recovery of vibration energy

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