Research On Optimization Of Electronic Brake System And Energy Recovery Strategy For Pure Electric Scooter

In the past decade,the aging of China is rapidly increasing,but at present there is no unified safety standard for senior electric mobility scooters,which causes great hidden danger to the elderly in the community travel,in order to actively respond to the safety and convenience of the elderly mobility travel in China’s aging population,this paper adopts the electronic braking system(EPB)with higher performance and working condition adaptability compared to the traditional parking brake system,using EPB This paper adopts the EPB system with higher performance and adaptability to different road conditions,and uses different parking brake strategies based on the dynamics model of mobility scooters and energy recovery strategies to greatly improve the safety and efficiency of mobility scooters for the elderly,which has a very broad application prospect.The main research work of this paper is as follows.Firstly,we analyze the application scenario of the pure electric mobility scooter,and then compare and analyze the advantages and disadvantages of the lasso type electronic brake braking system and the integrated electronic brake braking system according to the design requirements in terms of structure design and transmission principle,and introduce the internal structure of the integrated EPS and the relationship of each module in detail,and explain its working The principle of the integrated EPS is introduced in detail,which lays a good theoretical foundation for the subsequent dynamics modeling of the components and the proposed control strategies under different workingconditions.Secondly,the dynamics of the electric mobility scooter is analyzed,the braking process is analyzed in detail,the braking system of the mobility scooter is modeled,the electronic brake control strategy under various driving conditions is analyzed,and finally the control strategy scheme of the elderly mobility scooter is designed.The proposed brake control strategy is validated by simulink.Once again,the energy recovery system of the senior mobility scooter is introduced,and the specific operation of the senior mobility scooter is clarified through the analysis of the energy recovery system structure and the analysis of the energy recovery components.Then,by analyzing the braking process force and braking force distribution,the mathematical modeling of the braking force recovery constraints and the regenerative braking force recovery constraints,and combining the classical braking force distribution method,an improved braking energy distribution strategy is proposed,and the simulation results analysis will be further analyzed in the next chapters.Finally,the EPB and the determined energy recovery strategy are simulated by combining Simulink and Cruise,and the stability of the EPB system in operation is verified by comparing the obtained signal response curves with the adopted test conditions.The data of motor energy input and output,motor output torque and actual speed tracking in the simulation were also collected.The results of the experiments showed that the energy recovery efficiency was significantly improved and the EPB operated welloverall.In this paper,the theoretical research on the braking control strategy and energy recovery strategy of the elderly mobility scooter is carried out,and the effectiveness of the corresponding strategies is verified by using simulation algorithms,which improves the safety and efficiency of the elderly mobility scooter in theory,and paves the way for later deployment of the research results to the hardware.