Team John Deere Weekly Status Report Week 5

1
Team John DeereWeekly Status ReportWeek 5

• Josh Ebeling
• Jamari Haynes
• James June
• Mike Reno
• Ben Spivey
• Gary Twedt
• Wade Burch

2
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

3
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.

4
Conceptual Design Review(1) Combined
Cable/Pulley Control System
5
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

6
Conceptual Design Review(2) Brake/Gas Lapbar
Top View
7
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

8
Conceptual Design Review(3) Bicycle style
brake/gas control
9
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

10
Conceptual Design Review (4) Steering Wheel
Controls
11
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 dont have
• May not have enough mechanical parts to meet
  class requirements
• Interesting
• Professional controls appearance

12
Conceptual Design Review (5) Pivot bar control
13
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