Lecture

In-Wheel Motor Assembly: Formula Student Race Car

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

Description

This lecture explores the design and optimization of an electric in-wheel Formula Student wheel assembly, focusing on integrating propulsion and suspension systems for enhanced performance, efficiency, and sustainability. The project involves switching to a fixed-carrier compound planetary gearbox, which offers advantages such as a more compact structure, improved efficiency, and enhanced durability. The transmission design process includes using commercial software for input-output analysis and performing finite element analysis for safety assurance. The final iteration showcases a well-photographed assembly with reduced size and weight, promising significant improvements for future competitions.

This video is available exclusively on Mediaspace for a restricted audience. Please log in to MediaSpace to access it if you have the necessary permissions.

Watch on Mediaspace

Official source

Related concepts (19)

Car suspension

Suspension is the system of tires, tire air, springs, shock absorbers and linkages that connects a vehicle to its wheels and allows relative motion between the two. Suspension systems must support both road holding/handling and ride quality, which are at odds with each other. The tuning of suspensions involves finding the right compromise. It is important for the suspension to keep the road wheel in contact with the road surface as much as possible, because all the road or ground forces acting on the vehicle do so through the contact patches of the tires.

Air suspension

Air suspension is a type of vehicle suspension powered by an electric or engine-driven air pump or compressor. This compressor pumps the air into a flexible bellows, usually made from textile-reinforced rubber. Unlike hydropneumatic suspension, which offers many similar features, air suspension does not use pressurized liquid, but pressurized air. The air pressure inflates the bellows, and raises the chassis from the axle. Air suspension is used in place of conventional steel springs in heavy vehicle applications such as buses and trucks, and in some passenger cars.

Propulsion

Propulsion is the generation of force by any combination of pushing or pulling to modify the translational motion of an object, which is typically a rigid body (or an articulated rigid body) but may also concern a fluid. The term is derived from two Latin words: pro, meaning before or forward; and pellere, meaning to drive. A propulsion system consists of a source of mechanical power, and a propulsor (means of converting this power into propulsive force).

Laser propulsion

Laser propulsion is a form of beam-powered propulsion where the energy source is a remote (usually ground-based) laser system and separate from the reaction mass. This form of propulsion differs from a conventional chemical rocket where both energy and reaction mass come from the solid or liquid propellants carried on board the vehicle. The basic concepts underlying a photon-propelled "sail" propulsion system were developed by Eugene Sanger and the Hungarian physicist György Marx.

Automotive suspension design process

Automotive suspension design is an aspect of automotive engineering, concerned with designing the suspension for cars and trucks. Suspension design for other vehicles is similar, though the process may not be as well established.

Related lectures (49)

Introduction to Space Propulsion Systems and Design

Introduces space propulsion systems, their design principles, and the importance of project management in aerospace engineering.

Introduction to Space Propulsion Systems

Introduces the principles and applications of space propulsion systems.

Chemical Propulsion Systems: An Overview

Covers the principles and applications of chemical propulsion systems in space missions.

Rheology of Suspensions

Explores the rheology of suspensions, covering viscosity, particle interactions, and dynamic effects.

Spacecraft Propulsion MOOC: Space Mission Design and Operations