Energy recycling device for rear axle of electric vehicle

Abstract

The invention provides an energy recycling device for a rear axle of an electric vehicle. The energy recycling device comprises a rear axle suspension unit, a hydraulic valve group unit, a control monitoring unit and an energy recycling unit, wherein the rear axle suspension unit comprises a hydraulic rod and a rear axle main body positioned below a frame of the electric vehicle; the hydraulic rodcomprises a cylinder barrel which is floatingly connected to the rear axle main body; a rodless cavity of the cylinder barrel is equipped with a first oil hole; a rod cavity of the cylinder barrel isequipped with a second oil hole; the hydraulic valve group unit comprises a first two-position four-way solenoid valve and a second two-position four-way solenoid valve; and the control monitoring unit comprises a single chip microcomputer, a first relay, a second relay and a distance detecting device for measuring a distance between the rear axle main body and the frame of the electric vehicle.The energy recycling device for the rear axle of the electric vehicle provided by the invention can convert vibrating energy into electric energy, increases endurance mileages of the electric vehicle,and has relatively high conversion efficiency.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to an energy recovery device for the rear axle of the electric vehicle. Background technique [0002] During the driving process of an electric vehicle, affected by factors such as uneven road surface and vehicle acceleration and deceleration, the up and down displacement between the frame of the electric vehicle and the rear axle will occur, thereby generating a certain amount of vibration energy; The vibration damping of the device causes the vibration energy to not be effectively recovered, resulting in a waste of vibration energy. Therefore, it is necessary to design an energy recovery device to recover vibration energy and extend the cruising range of electric vehicles. Contents of the invention [0003] In view of the above circumstances, the present invention provides an energy recovery device for the rear axle of an electric vehicle, which can realize the recovery of vibr...

AI Technical Summary

Problems solved by technology

[0002] During the driving process of an electric vehicle, affected by factors such as uneven road surface and vehicle acceleration and deceleration, the up and down displacement between the frame of the electric vehicle and the rear axle will occur, thereby generating a certain amount of vibration energy; Vibration damping of the device, resulting in the failure of effective recovery of vibration energy, resulting in a waste of vibration energy

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