Turning a model car with no steering.

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SUMMARY

To effectively turn a model car without traditional steering, utilizing servos for each wheel is essential. Reducing power to the front left wheel while decreasing the speed of the rear wheels allows the front left wheel to act as a pivot, facilitating a left turn. Alternatively, cutting power to the entire left side can also achieve the desired turning effect. Implementing omni wheels can further enhance maneuverability by eliminating tire wear associated with lateral motion.

PREREQUISITES
  • Understanding of servo motor control
  • Familiarity with skid-steer vehicle mechanics
  • Knowledge of wheelbase and vehicle geometry
  • Basic principles of omni wheel functionality
NEXT STEPS
  • Research servo motor programming techniques for precise control
  • Explore the mechanics of skid-steer loaders for better turning strategies
  • Investigate the design and benefits of omni wheels in model vehicles
  • Learn about vehicle dynamics and tire wear in relation to turning
USEFUL FOR

Model car enthusiasts, robotics hobbyists, and engineers interested in vehicle dynamics and innovative steering solutions.

kpket
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Hi Guys,
If I were to build a model car, with each wheel having it's own servo, then how can I make it turn in one direction.
Say if I want to turn left, if I cut power to the front left and reduce the speed of the rare wheels will the front left wheel act as a pivot? Or should I cut power of the whole left side?
Is there anyway I can simulate this?
Cheers
Kris
 
Engineering news on Phys.org
Welcome to PF.
The skid steer loader has 4WD without directional wheel steering. The best geometry to use is a wide vehicle with a short wheelbase as that reduces tyre wear while turning.
http://en.wikipedia.org/wiki/Skid-steer_loader
 
Different speeds for each wheel will steer the car.
Omni wheels will completely eliminate wear from lateral motion without the need for a conventional differential or accommodations for Ackerman steering geometry.
 

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