The Design And Analysis Of Sliding-cabin Inverted Three-wheeled Concept Car

With the development of urban construction and the expansion of urban scale,the quality of human life has been continuously improved. However, increasingly severe transportation pressure, environmental pollution and frequent traffic accidents,along with many other factors, have diversified the way that people travel nowadays.As a result, the concept of a safe, green and efficient method to travel has been formed, which considers not only the protection of the environment, but also the attitudes towards a healthy life and the smooth process of the trip itself. Therefore, a personal vehicle with superior performance on safety, flexibility and stylishness would be the optimal choice.This paper presents a safer, more environmentally friendly, more flexible and personalized vehicle, namely Sliding-cabin Inverted Three-wheeled Concept Car; in addition, key features like the driving system, the sliding energy-absorbing buffer and front boarding are designed and analysed. First of all, this paper studies the steering model of inverted three-wheeled vehicles, designs a new front inverted tricycle structure(i.e. the two front wheels are installed with hub motor and operated as driving wheels, while the back wheel is used as a universal driven wheel relying upon the rolling differences between the two front wheels to achieve flexible turning or even pivot turning), calculates and analyses the motion characteristics of this certain driving system, the performance on anti-side-rollover and anti-head-rollover and the requirements for basic parameters regarding major parts of the hub motor. Secondly,this paper researches currently how people get on and off various vehicles, hence designs a new structure that enables front boarding and conducts a motion simulation analysis- in terms of the designing of concept cars, it gives the vehicle unique personalities. Last but not least, this paper investigates the characteristics of different types of sliding-cabin and the structures that commonly applied in automobiles to absorb collision energy, and designs a sliding structure for absorbing collision energy- in other words, the cabin and the chassis is connected by a sliding rail and an energy absorbing tube; when a head collision happens, there would be a relative sliding between the cabin and the chassis that crushing and deforming the energy absorption cylinder to effectively absorb collision energy.The findings of this paper show that the concept of this sliding-cabin invertedthree-wheeled vehicle can fulfil the function of electric driving, pivot turning and front boarding. Moreover, through the calculation and simulation of the collision analysis, the sliding-cabin inverted three-wheeled concept car can prevent the vehicle from side-rollover and head-rollover; especially, the sliding structure can effectively buff and absorb energy, reduce the peak acceleration in collisions and hence protect the wellbeing of the driver and passengers and minimise their injury.