A method for recovering the vibration energy of the rear axle of an electric vehicle

Abstract

The invention provides a method for recovering the vibration energy of the rear axle of an electric vehicle. The method comprises the steps of: floatingly installing the hydraulic cylinder between the vehicle frame and the rear axle of the electric vehicle, the rodless chamber of the hydraulic cylinder is provided with a first oil port, the rod chamber of the hydraulic cylinder is provided with a second oil port, and the solenoid valve valve The group is connected to the first oil port and the second oil port, the distance between the frame and the rear axle is measured to obtain distance data, and the time interval is set; during the driving of the electric vehicle, when the distance measured in the time interval decreases, By controlling the solenoid valve group, the hydraulic oil in the rodless cavity is discharged into the oil tank through the first oil port, the solenoid valve group and the generator. , so that the hydraulic oil in the rod cavity is discharged into the oil tank through the second oil port, the solenoid valve group and the generator, and the generator is used to generate electricity and store the electric energy in the battery of the electric vehicle. Adopting the recovery method in the present invention has higher electric energy conversion efficiency.

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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