Clyde Baker

1
SAE 1 Mini-Baja Four Wheel Steering

• Team
• Clyde Baker
• Ken Brown
• Alex Cherukara
• Kevin Eady
• Sponsor
• Dr. Patrick Hollis

2
Problem Statement

• Reduce Turning Radius
• Applicable to Formula SAE Car
• Budget of 500

3
Needs Assessment

• As defined by group
• Turning radius of 7 or less
• Strong enough to withstand forces experienced
  during competition
• Must not interfere with other components
• Must remain stable
• Least weight possible

4
Concepts

• How to achieve front to rear ratio?
• Geometry Easier to construct, more reliable,
  less components.
• Gearing Easier to design, identical geometry and
  components for subsystems.

5
Final Concept

• The complete concept is a combination of all
  other concepts.
• Opposite wheel steering
• 30 degree front wheel angle
• 21 front to rear wheel angle ratio
• Gearing to achieve ratio

6
System Configuration

• Layout/Operation of the system
• Two subsystems Rack and pinion for front and
  rear, identical geometry and components.
• Steering column fitted with 2 bevel gear. Meshes
  with 2 bevel gear on shaft to front system and
  4 gear on shaft to rear system.
• As steering wheel is turned the shafts turn.
  Front rack will travel 5 total, the rear 2.5.

7
Front Steering Assembly
8
Rear Steering Assembly
9
Recent Design Changes
10
Current Work

• Completed course testing of present steering
  system to be used for qaulitative and
  quantitative comparisons

11
Current Work

• Received all ordered parts
• Began construction of steering system
  sub-assemblies

12
Future PLans

• Completion of steering system (sub-assemblies and
  full asssembly)
• Final testing
• Redesign and or fine tuning

Downhill From Here