Front-Drive Drift Kart With Hand-Lever Rear Caster Control

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Solution Overview

Problem

Karts lack the capability to induce and control drift during turns due to their rear wheel drive configuration and absence of a differential, which limits their maneuverability and competitive performance in drifting sports.

Innovation Solution

A front wheel drive system with dynamically engageable rear caster wheels, controlled by a hand lever, allows for the induction and control of drift during turns by altering the alignment of the caster wheels to enhance swiveling capability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If karts use rear wheel drive configuration without differential, then the kart structure remains simple, but the kart cannot induce and control drift during turns

Engineering Contradiction:
Improvedrift control capabilityVSAvoiddrive train configuration
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent inverts the conventional rear wheel drive configuration by implementing front wheel drive. This allows the front wheels to provide both steering and propulsion functions, enabling drift control without requiring a complex differential mechanism in the rear axle. The front wheel drive system with independent wheel control achieves drift capability while maintaining relative structural simplicity.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The patent segments the drive function from the steering function by using independently controlled front wheels. Each front wheel can be controlled separately to induce drift, allowing the kart to achieve drift control capability without a traditional differential system. This segmentation enables precise control over wheel slip and drift angle.

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If karts lack suspension system, then the chassis structure remains simple and lightweight, but the vibration and impact during drifting maneuvers increase

Engineering Contradiction:
Improvevehicle stability during driftVSAvoidsuspension system
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent makes the chassis serve multiple functions: it provides structural support, absorbs vibration and impact during drifting, and maintains structural integrity without adding a separate suspension system. The chassis is designed with enhanced flexibility and damping characteristics to perform the suspension function inherently, avoiding additional complexity while improving stability during drift maneuvers.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If karts use hand brake drift technique, then drift can be induced, but the rear wheels lose traction completely causing loss of control

Engineering Contradiction:
Improvedrift inductionVSAvoidvehicle control
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent implements dynamically adjustable front wheel drive control that can modulate power delivery to each front wheel independently. This dynamic control system allows the driver to induce drift by creating wheel slip while maintaining the ability to control and regulate the drift angle, preventing complete loss of traction and maintaining vehicle control throughout the drifting maneuver.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent incorporates control systems that provide feedback on wheel slip, drift angle, and vehicle state. This feedback mechanism allows the control system to adjust power delivery and steering input in real-time, enabling drift induction while maintaining reliable vehicle control. The system can detect when drift is occurring and adjust parameters to maintain optimal drift conditions without complete traction loss.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11786423B2Drifting kart
Publication Date: 2023.10.17 KERMANI ALI
  • US11786423B2 patent drawing
  • US11786423B2 patent drawing
  • US11786423B2 patent drawing

AI summary

Drifting karts in accordance with embodiments of the invention are described that include a front wheel drive train and rear caster wheels that can be dynamically engaged to induce and control drift during a turn. One embodiment of the invention includes a chassis to which a steering column is mounted, where the steering column includes at least one front steerable wheel configured to be driven by an electric motor, a battery housing mounted to the chassis, where the battery housing contains a controller and at least one battery, wiring configured to provide power from the at least one battery to the electric motor, two caster wheels mounted to the chassis, where each caster wheel is configured to rotate around a rotational axis and swivel around a swivel axis, and a hand lever configured to dynamically engage the caster wheels to induce and control drift during a turn.