Wind-Driven 12-Volt EV Charging to Offload Main Battery Power
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Solution Overview
Problem
Current electric vehicle charging systems deplete the main battery and require frequent stops for recharging, as they inefficiently transfer power from high voltage batteries to 12-Volt systems, leading to reduced vehicle range and potential safety issues.
Innovation Solution
A regenerative charging device using wind energy to generate electricity for 12-Volt circuits and batteries, independent of the high voltage battery pack, featuring a cylindrical fan with blades that spin to rotate a generator winding around an armature, installed using brackets and connected to the 12-Volt system for recharging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a converter draws electric current from the large battery pack to recharge the 12-Volt battery, then the 12-Volt battery is recharged, but the power and life of the large battery pack decreases and vehicle range is reduced
Solution Approach 1:
The wind turbine system enables the vehicle to generate its own electricity while in motion, allowing the 12-Volt battery to recharge itself through wind energy conversion rather than drawing power from the large battery pack. The system serves itself by converting kinetic energy from wind into electrical energy for 12-Volt system recharging.
Solution Approach 2:
The wind turbine acts as an intermediary energy conversion device between the natural wind energy source and the 12-Volt battery, converting mechanical energy from rotating blades into electrical energy through electromagnetic induction, thereby eliminating the need for direct power transfer from the large battery pack.
2Adaptability or versatility
If the converter steps down voltage from 400V/800V to around 14V for 12-Volt battery recharging, then the voltage is compatible, but current transfer problems occur and charging efficiency is reduced
Solution Approach 1:
The patent replaces the electrical converter system with a mechanical-to-electrical conversion system. Instead of using an electrical converter to step down voltage, the wind turbine uses mechanical rotation of blades to generate electricity directly at the appropriate voltage level through electromagnetic induction, eliminating converter inefficiencies.
3Reliability
If the vehicle stops frequently at charging stations for recharging, then the large battery pack is recharged, but the vehicle range of motion is reduced and time is lost
Solution Approach 1:
The wind turbine system enables continuous electricity generation during vehicle operation, allowing the 12-Volt battery to be recharged continuously while the vehicle is in motion. This eliminates the need for periodic stops at charging stations, as the charging process occurs continuously during normal driving.
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
This solution increases the driving range of electric vehicles by offloading charging requirements from the main battery, reducing depletion and providing a safer, more efficient power source for 12-Volt systems, while being environmentally friendly and adaptable for integration or retrofitting into various vehicles.
Implementation Method 1
The charging device has a generator winding inside the hollow fan and is wrapped around an armature, wherein the winding rotates around the armature to generate electric power
Data Source
AI summary
A charging device for providing power to 12-Volt circuits of an electric vehicle. The charging device comprises a cylindrical fan having a plurality of blades extending radially from an outer surface thereof, a winding connected to an inner surface of the fan and wrapped around an armature. The fan spins when the vehicle is in motion enabling the winding and armature to generate electricity. The electricity is provided to a vehicle's 12-Volt battery or directly to 12-Volt circuits of the vehicle. As a result, power is not required from the main battery of the vehicle and thus, a driving range of the electric vehicle increases. The charging device can be positioned at any appropriate position on the vehicle and can be integrated or retrofitted.