Bump Steer Adjustment Mechanism for Model Vehicle Steering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Remote control and model vehicles face challenges in achieving optimum handling characteristics due to high construction and maintenance costs, and they often lack adjustable features to optimize performance under different driving conditions.
Innovation Solution
A bump steer adjustment mechanism is introduced, featuring a tie rod coupled to a steering control mechanism and a pivotable wheel support with a ball joint that allows adjustable coupling, enabling displacement from the vehicle's surface to optimize steering and handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed ball joint location is used to couple the tie rod to the wheel support, then the structure is simple and cost-effective, but the handling characteristics cannot be optimized under different driving conditions
Solution Approach 1:
The ball joint is made adjustable along the tie rod, allowing its position to be dynamically changed to optimize handling characteristics for different driving conditions. The adjustable mechanism includes multiple holes in the tie rod and a movable ball joint that can be positioned at different locations and secured with a set screw.
Solution Approach 2:
The position parameter of the ball joint along the tie rod is made variable. By changing the location of the ball joint relative to the tie rod axis, the steering geometry and handling characteristics can be optimized for different driving conditions without changing the overall structure.
2Adaptability or versatility
If adjustable features are added to optimize performance under different driving conditions, then handling characteristics improve, but construction and maintenance costs increase
Solution Approach 1:
The tie rod is segmented with multiple holes at different positions along its length. The ball joint can be positioned at any of these holes and secured with a set screw, allowing adjustment without requiring a completely new tie rod for each configuration. This segmentation enables cost-effective customization.
Solution Approach 2:
The adjustable ball joint position provides dynamic adaptability for different driving conditions while using a simple mechanical adjustment mechanism rather than complex electronic or hydraulic systems, keeping manufacturing and maintenance costs reasonable.
3Ease of operation
If the ball joint is positioned at multiple locations along the tie rod, then steering optimization is achieved, but the manufacturing complexity increases
Solution Approach 1:
The tie rod incorporates multiple pre-drilled holes at specific positions along its length. The ball joint can be easily positioned at any of these holes and secured with a set screw, providing simple steering adjustment without requiring high-precision manufacturing for each possible position.
Solution Approach 2:
The adjustment mechanism is designed to be user-friendly, allowing the operator to easily change the ball joint position by loosening the set screw, moving the ball joint to the desired hole, and tightening the set screw. This self-service adjustment eliminates the need for specialized tools or complex procedures.
Data Source
AI summary
A steering mechanism for a model vehicle is provided, having one or more steering actuators, a steering control arm pivotally mounted for rotation relative to a model vehicle chassis, the steering control arm being coupled directly to at least two tie rods, each tie rod controlling the steering of at least one wheel of a vehicle, and each of the one or more steering actuators coupled to the steering control arm to rotate the control arm relative to the vehicle chassis.