Team John Deere Weekly Status Report Week 5 Josh Ebeling Jamari Haynes James June Mike Reno Ben Spivey Gary Twedt Wade Burch

Review of Previous Action Items Group meeting scheduled on Friday to meet as a whole and to teleconference with other schools. Responsibility: Gary Twedt and Ben Spivey Met ID group members and obtained contact info Learned how projects were divided by school John Deere contacts willing to provide supplies Revised conceptual designs from last week Responsibility: Gary, Ben, Jamari, and James

Problem Statement: Controls Product Idea: Gas and brake hand controls that can be effectively operated by the user. Functional Goals: Activating and releasing the gas and brakes with a reasonable amount of effort. Challenges: Decreasing the amount of force needed by the user to operate the controls by hand instead of foot; making the controls dependable.

Conceptual Design Review (1) Combined Cable/Pulley Control System

Pros: One lever controls both gas and brakes Mechanical design meets class goals Ability to alter mechanical advantage with pulleys Minuses: Mechanical parts may require maintenance Interesting: Combined gas and brake in one lever

Conceptual Design Review (2) Brake/Gas Lapbar Top View

Conceptual Design Review (2) Brake/Gas Lapbar Pros: Simplicity Mechanical design meets class goals Minuses: Inability to alter mechanical advantage Operates using a less natural motion to brake and accelerate Interesting: Few parts needed

Conceptual Design Review (3) Bicycle style brake/gas control

Pros: Ability to alter mechanical advantage Mechanical design meets class goals Natural hand motion for braking/acceleration Minuses: Mechanical parts requiring maintenance Requires two hand levers May take time to go from gas to brake quickly Interesting: User has good control with hand grip motion

Conceptual Design Review (4) Steering Wheel Controls Motor

Conceptual Design Review (4) Steering Wheel Controls Pros: Control positioning allows user to maintain control of wheel while braking/acceleration Little modification of dash needed Cons: Requires knowledge of electrical controls most students don’t have May not have enough mechanical parts to meet class requirements Interesting: Professional controls appearance

Conceptual Design Review (5) Pivot bar control

Pros: Natural user motion similar to airplane throttle High mechanical advantage with taller handle post Cons: Little flexibility to have different MA for gas and brake Requires gas and brake pedals to be relatively aligned Interesting: Throttle-like control