No abstract

In this paper, aiming at the self-developed double-wheel intelligent vehicle, a comfort simulation considering the human two-DOF (degree-of-freedom) model was conducted. Based on the analysis of the human body response to the vibration, the dynamic model of vehicle random vibration is used to establish a five-DOF human-seating-road ride dynamic model combined with MATLAB/Simulink software. Through the simulation of the road comfort test under the excitation of filtered white noise, the ride comfort analysis of the intelligent vehicle was realized.

With the vigorous implementation of national policies and regulations such as energy-saving and emission reduction, lightweighting has become one of the trends in the development of the automotive industry, which is of great significance in reducing energy consumption and increasing the range of vehicles. This paper is based on a newly developed smartness car body designed for elderly users, which aims to solve the problem of mobility and companionship for the elderly, with a maximum speed of 20 km/h and a weight requirement of 45 kg or less. This paper focuses on the lightweight technology of the body of the smartness car, using carbon fibre composite material as the carrier, and using simulation analysis combined with experimental testing to systematically study the body material selection, structure and process, and to carry out force analysis, finite element analysis and modal analysis on the designed body, verifying that the body of the smartness car meets the lightweight design requirements.