Konceptuell design och utveckling av hybridfordon
This report covers the conceptual design of a new one person hybrid vehicle that is to be fast and convenient to drive on the roads. The vehicle is most of all supposed to be used as a commute vehicle but can also be used at other occasions as well.During the work with this project the group has focused on three larger areas, the outer design (body), wheel chassis and an ergonomically designed interior. The group was not able to just create these parts in 3D to get a trustworthy vehicle, hence number of other components and details were also created to get a better entirety.The outer design starts with idea generation and sketches and ends with a 3D model which is rendered to show how the final product is going to look. The design of the body has been going on during the entire work process due to new ideas and improvements that seemed interesting and had to be changed.The wheel chassis also started with idea generation, research and sketches. It ended up with a simulated 3D model which later on was mounted on the vehicle body to show how the vehicle is going to perform during usage. The simulation was used to see if the ideas that came up were going to work in reality. The simulation in Pro/Engineer made it possible to save a lot of time and make the work process more efficient.Finally the interior were designed inside the vehicle body but most importantly it was built and adjusted to the human body. Important measurements and facts were collected with the help of the ergonomic program Jack. Which controls that should be included was investigated and the steering wheel became the central part of the dashboard since the vital functions are controlled via this unit. The speedometer and likewise functions where also moved to the steering wheel to improve the visibility.The group was also set to explore other interesting details especially the engines. The engines that were chosen to the final concept where so called wheel engines. These engines are mounted inside the rims and can also handle the braking of the vehicle which makes a separate braking system unnecessary. The wheel engines had so many advantages that they became the obvious selection. But the vehicle was from the beginning set to be a hybrid and with only the wheel engines it was not. To make it hybrid, a second, smaller engine was put in, but only for recharging the batteries when needed. This engine is driven by gasoline or ethanol.