Motorized Wagon Handle Control With Independent Hub Wheels
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Solution Overview
Problem
Current motorized wagons lack control and adaptability on various terrains, restrict maneuverability, and do not offer safe speed and direction control, with existing solutions failing to address these issues effectively.
Innovation Solution
An all-terrain motorized wagon with motorized hub wheels, featuring independently controlled brushless motors, a collapsible frame, and a control unit that allows for variable speed and torque control, along with safety features like electronic and manual braking systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a motorized drive train with axis is used, then the wagon can be powered, but the maneuverability and train flexibility are restricted
Solution Approach 1:
The motorized drive train is segmented into independent hub motors integrated into each wheel, eliminating the need for a rigid central drive shaft and differential assembly. This allows each wheel to be controlled independently while maintaining flexibility and maneuverability across varying terrains.
2Ease of operation
If existing motorized hub-wheel technology is used from electric bikes and scooters, then wheel control is improved, but the design does not support heavy load and all-terrain usage
Solution Approach 1:
The hub motors are specifically engineered with localized high-torque characteristics and integrated shock absorption capabilities tailored for heavy-load, all-terrain applications. The wheel assembly incorporates terrain-adaptive features such as adjustable suspension and robust braking systems that are not present in standard electric bike or scooter designs.
3Device complexity
If a single control unit controls multiple systems, then the system is simplified, but control precision over speed and torque may be reduced
Solution Approach 1:
The control unit incorporates feedback mechanisms from sensors on each motorized wheel that continuously monitor speed, torque, and terrain conditions. This feedback enables the control unit to precisely adjust each wheel's motor output in real-time, maintaining high control precision despite the simplified single-unit architecture.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances maneuverability and adaptability across diverse terrains by providing precise control over speed and direction, ensuring user safety through independent wheel motors and robust braking mechanisms.
Implementation Method 1
a brushless motor allowing two or more independent systems to run through one control unit
Implementation Method 2
as well as shock absorbers to absorb weight
Implementation Method 3
The motorized wagon system also includes a braking mechanism
Data Source
AI summary
A motorized wagon system according to the present disclosure includes a frame, a base coupled to the frame, a first wheel set and a second wheel set connected to the base, a handle connected to the frame, and a control system. The control system includes a first sensor and a second sensor configured to measure two forces applied on different portions of the handle. The control system further includes a controller that controls the first wheel set based on measurements of the first sensor and the second wheel set based on measurements of the second sensor.