The purpose of the report is to describe the different specifications and functions for the entire wheelchair team and for 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 the general 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 has developed, subteam specific metrics emerged. Some measurable quantities identified are the 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 over the school year. All specifications will be further developed as prototyping and modeling continue, but the current specifications are found in the sections below for the full team’s general specifications and subteam specific specifications.
The report is organized into four sections below: 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.
Propulsion Team Specifications