Children's Electric ATV Layout for Controllability and Stability
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Solution Overview
Problem
Existing all-terrain vehicles for children are derived from adult vehicles, lacking controllability and environmental protection, making them unsuitable for children's needs.
Innovation Solution
An all-terrain vehicle design featuring a frame, wheels, drive system, power supply system, suspension system, and control unit, with specific geometric configurations and components like a power supply compartment and rocker arm suspension, enhancing controllability and environmental safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If all-terrain vehicles for children are simply transformed from adult vehicles, then the vehicle structure is simplified and easier to manufacture, but the controllability and environmental protection performance deteriorate
Solution Approach 1:
The vehicle is divided into modular components with specific functional zones: the power supply system is segmented into main power supply (below saddle) and auxiliary power supply (front of driver), the drive system is separated into drive motor and transmission components, and the suspension system is divided into front and rear suspensions with specific geometric configurations. This segmentation allows each component to be optimized independently for children's safety and control while maintaining manufacturing efficiency.
Solution Approach 2:
Different parts of the vehicle are designed with locally optimized properties: the main power supply is positioned below the saddle assembly with specific angular relationships (90°-120° with drive motor output shaft, 90°-135° with rear rocker arm) to optimize weight distribution and control; the saddle length ratio is specifically set to 0.3-0.48 of vehicle length; the power supply compartment height ratio is set to 0.3-0.45. These localized quality specifications improve controllability without requiring complete redesign of the entire vehicle structure.
2Reliability
If the power supply system is positioned below the saddle assembly, then the center of gravity is optimized and controllability is improved, but the space for other components is reduced
Solution Approach 1:
The power supply system utilizes the vertical dimension below the saddle assembly rather than occupying horizontal space. The main power supply is positioned in the vertical space underneath the saddle, with its height direction substantially in the upper-lower direction. This dimensional repositioning optimizes the center of gravity for controllability while preserving horizontal space for other components through the use of geometric parameter constraints.
3Ease of operation
If the saddle length ratio is optimized to 0.3-0.48 of vehicle length, then the riding comfort and control are improved, but the vehicle structure becomes more complex
Solution Approach 1:
The saddle assembly length is optimized by changing the geometric parameter to be 0.3-0.48 of the vehicle length, which improves riding comfort and control for children. Similarly, the power supply compartment height is parameterized as 0.3-0.45 of vehicle height. These parameter changes provide quantitative optimization without requiring complex structural modifications, maintaining manufacturing simplicity while achieving ergonomic improvement.
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
The design improves controllability and environmental safety, ensuring stable operation and reduced risk of accidents, while optimizing weight distribution and power supply protection.
Implementation Method 1
The drive system includes a drive motor for driving at least one of the first wheels and the second wheels
Implementation Method 2
The suspension system includes a front suspension and a rear suspension, the first wheels are connected to the frame by the rear suspension and the second wheels are connected to the frame by the front suspension. The rear suspension includes a rear rocker arm.
Data Source
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AI summary
The application discloses an all-terrain vehicle including a frame; a plurality of wheels, a drive system, a saddle assembly, a power supply system, and a suspension system. The plurality of wheels are connected to the frame and include at least a first wheel. The drive system including a drive motor for driving the plurality of wheels. The saddle assembly for riding is arranged on the frame. The power supply system is at least partially mounted below the saddle assembly and for supplying power to the drive system. The suspension system is at least partially pivoted to the frame and the wheels, respectively. The all-terrain vehicle uses a battery as the power source, which can be widely used for children to ride, can meet the use needs and safety requirements of the all-terrain vehicle for children, and can ensure the safety of drivers.