Study On Vibration Energy Recovery Device For Electric Vehicle

With the rapid development of automobile industry,the number of high energy consuming products is increasing day by day,and the exhaust emission of fuel vehicles,so that energy and environmental issues have been more and more attention.The new energy electric vehicles which came into being,from how to reduce electricity consumption and recycling of cars with waste energy two angles of new energy electric vehicles has become the focus of scholars.In order to recover the car by the traditional suspension system into vibration energy heat discarded,this paper presents a new type of composite electric vehicle vibration energy recovery device,the device can differ in the amplitude of the vibration of automobile driving environment,wide amplitude vibration energy recovery,increase the endurance of new energy vehicles.Firstly,the overall design of the composite vibration energy recovery device;then to provide vibration excitation source,road roughness is studied for automobile shock absorber,with the help of Matlab/Simulink on Road Roughness Simulation inversion using filter white noise method,time domain case A~H pavement elevation displacement curve,and using the dynamic analysis software Adams,the in vehicle suspension vibration road corresponding simulation analysis,the vibration characteristics for later composite vibration energy recovery device generating capacity analysis to provide data support;analysis of the characteristics of the vehicle vibration energy recovery,piezoelectric materials and Halbach permanent magnet array of permanent magnet linear motor two ways for the design of composite compound energy recovery circuit and the design of shock absorber;vibration energy recovery related compound environment.At the end of the piezoelectric material,the finite element simulation analysis,analysis of its power generation capacity;analysis of flux density simulation of Halbach permanent magnet array,analyzes its advantages compared with other permanent magnet array under the same conditions,through the simulation analysis verify the feasibility of composite electric vehicle vibration energy recovery device.