The purpose of the Engineering Specification section is to describe the different specifications and functions for the entire wheelchair team and each subsystem team. The general specifications cover the specifications that overlap among subsystems and testing methods for the full wheelchair device assembly. In addition to general specifications, the subteam sections cover specifications that are specific to the functionality of the subsystem. The specifications identified in this report are derived from the design objectives, which have been informed by research on the largest areas of improvement for wheelchair users. Initially, general specifications, functions, and constraints were developed, but as subteam work developed, subteam specific metrics emerged. Some measurable quantities identified are velocity, acceleration, weight of the device components, weight the device and wheelchair can support, cost, and maximum incline grade the wheelchair is designed to climb. These complement design objectives that have developed through rigorous discussion.
The following four sections are organized into: the general specifications, propulsion team specifications, electro-mechanical integration team specifications, and effort sensing team specifications. Each section discusses functionality, including the general functionality and the subteam specific functionality. Following the brief overview of function, each section includes a specification table and an explanation of the specifications below.