Vibration energy recovery system and wheel suspension system with same

Abstract

The invention provides a vibration energy recovery system which comprises a piston damping device, a hydraulic-control two-position four-way reversing valve communicated with the piston damping device and an energy storage and power generation device communicated with the hydraulic-control two-position four-way reversing valve. The piston damping device comprises a cylinder body, a piston arranged in the cylinder body and a connecting rod connected with the piston. The piston divides the cylinder body into a first cavity and a second cavity. When the connecting rod drives the piston to move towards the first cavity, the first cavity and the energy storage and power generation device are in a one-way communicated state. When the connecting rod drives the piston to move towards the second cavity, the second cavity and the energy storage and power generation device are in a one-way communicated state. The invention further provides a wheel suspension system with the vibration energy recovery system. By means of the vibration energy recovery system, the vibration energy recovery efficiency and sensitivity can be improved.

Description

technical field [0001] The invention relates to a vibration energy recovery system and a wheel suspension system with the system, belonging to the technical field of vibration energy recovery. Background technique [0002] With the rapid development of human society and economy, new energy vehicles have developed rapidly. The existing new energy vehicles have short driving range and high energy consumption. Especially when the car is driving on a potholed road, the entire body will The unevenness of the road surface produces up and down motion, which is applied to the spring of the automobile shock absorber, and the repeated expansion and contraction of the spring generates vibration and friction. The energy related to these vibrations is converted into heat energy by the shock absorber of the vehicle suspension and consumed If the vibration energy is recycled, the consumption of battery energy will be reduced. However, due to the vibration imposed by the automobile body on ...

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Problems solved by technology

[0002] With the rapid development of human society and economy, new energy vehicles have developed rapidly. The existing new energy vehicles have short driving range and high energy consumption. Especially when the car is driving on a potholed road, the entire body will The unevenness of the road surface produces up and down motion, which is applied to the spring of the automobile shock absorber, and the repeated expansion and contraction of the spring generates vibration and friction. The energy related to these vibrations is converted into heat energy by the shock absorber of the vehicle suspension and consumed If the vibration energy is recycled, the consumption of battery energy will be reduced. However, due to the vibration imposed by the automobile body on the spring, the expansion and contraction frequency of the spring is relatively fast. If the reversing valve is used to extend or compress the vibration damping device The energy recovery under two vibration states requires high timeliness for the reversing of the spool of the reversing valve. If the reversing of the reversing valve is not timely, the vibration energy cannot be recovered, or only one-way vibration can be recovered. energy recovery, resulting in low efficiency of vibration energy recovery

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