P18280: Hot Wheelz Test Bench
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Problem Definition

Table of Contents

Team Vision for Problem Definition Phase

Goals:

Completed:

Project Summary

Problem Summary

Use Cases

During the Preliminary Design Review phase, the primary use cases for the project were more clearly defined. The use cases for series and parallel powertrain configurations are shown below.

Parallel Hybrid Use Case

Parallel Hybrid Use Case

Working use case document

One aspect of reusing the test bench year to year is ensuring that it is able to test the different powertrain systems the Hot Wheelz team designs. This includes both parallel and series hybrid systems. To test series hybrid systems, the test bench needs to be able to load the motor on the dynamometer and test hybrid charging of the batteries. To test parallel hybrid systems, the test bench needs to be able to load the motor and load the engine independently on the dynamometer. Testing parallel hybrid systems does not include testing the mechanical drivetrain.

Benchmarking

The image below shows a few benchmarking solutions for an electrical/hybrid test bench. The "No testing" option displays the worst-case solution and the "Suggested Design" option displays the best-case solution. A higher score correlates with a better solution.
Benchmarking Values

Benchmarking Values

Working Benchmarking Document

Customer Requirements (Needs)

Customer Requirements

Customer Requirements

Customer Requirements

Customer Interview

General description of project:

Q/A

What is the most important feature you want this device to be able to support?

What amount of funds would be needed to make this project a reality?

What are your expectations in terms of the telemetry specs? (wireless range and data transfer)

What is your vision for the GUI used to interact with test bench parameters? Should it be designed for end users?

What electrical systems can be permanently installed on the test bench?

What kind of power sources do you need for the ground low voltage system and telemetry?

Where do you plan on using the device?

What elements of the Hot Wheelz car design affects our ability to create the test bench?

What issues need to be addressed in regards to the previous test bench?

What kind of data is important to collect from electrical testing?

Engineering Requirements (Metrics & Specifications)

Engineering Requirements

Engineering Requirements

Engineering Requirements Testing Methods

Engineering Requirements Testing Methods

Working Engineering Requirements

Constraints

House of Quality

House of Quality Part 1

House of Quality Part 1

House of Quality Part 2

House of Quality Part 2

House of Quality

Design Review Materials

Week 3 Problem Definition Design Presentation

Plans for next phase


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