Solar Controller Direct Charging for Vehicle Battery
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Solution Overview
Problem
Conventional solar charging systems for vehicles have low charging efficiency due to the need to accumulate power in a solar battery before converting it for vehicle battery charging, leading to inefficient use of solar-generated power.
Innovation Solution
A solar controller with a processor that determines charging conditions based on solar panel output and vehicle state, activating charging modes to directly utilize solar power for battery charging, including selecting between multiple batteries and managing charging with either solar or vehicle chargers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If power generated from solar panel is accumulated in solar battery before charging vehicle battery, then power conversion control can be performed, but charging efficiency is reduced
Solution Approach 1:
The patent extracts the solar battery from the mandatory power conversion path. Instead of requiring all solar power to pass through the solar battery for conversion, the system allows solar power to directly charge the vehicle battery when conditions permit, eliminating the intermediate accumulation step and improving overall charging efficiency.
Solution Approach 2:
The system dynamically adjusts the charging path based on real-time conditions. The controller determines whether to charge the vehicle battery directly from the solar panel or through the solar battery based on factors such as battery states of charge, power generation amount, and vehicle operation status, optimizing efficiency while managing complexity adaptively.
2Reliability
If solar controller uses sophisticated control technology to manage variable solar panel output, then power conversion is improved, but system complexity increases
Solution Approach 1:
The solar controller performs self-diagnosis and autonomous decision-making regarding charging paths. It automatically determines whether to enable direct charging based on monitoring battery states of charge, power generation levels, and vehicle operation conditions, reducing the need for complex external control systems while maintaining reliability.
Solution Approach 2:
The system continuously monitors the states of charge of both solar battery and vehicle battery, along with power generation amount and vehicle operation status. This feedback mechanism enables the controller to dynamically adjust the charging strategy, ensuring reliable power conversion while simplifying control through condition-based decision-making.
3Ease of operation
If solar battery is used as intermediate storage for solar power, then power management is simplified, but charging efficiency is reduced
Solution Approach 1:
The system dynamically selects between two power management modes: direct charging mode (solar panel to vehicle battery) when efficiency is prioritized, and intermediate charging mode (solar panel to solar battery to vehicle battery) when power management simplicity is prioritized. This dynamic approach balances ease of operation with charging efficiency based on real-time conditions.
Solution Approach 2:
The controller changes operational parameters such as the charging path configuration based on the states of charge of the batteries and the amount of power being generated. When the solar battery is sufficiently charged or when direct charging conditions are met, the system switches to direct charging, effectively changing the system's operational parameters to optimize efficiency.
4Productivity
If direct charging from solar panel to vehicle battery is implemented, then charging efficiency is improved, but control requirements increase
Solution Approach 1:
The solar controller autonomously manages the direct charging process by self-diagnosing system conditions and making real-time decisions about charging parameters and path selection. This self-service capability reduces the need for complex external control systems while maintaining high charging efficiency through intelligent, condition-based control.
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 charging efficiency by directly utilizing solar power for vehicle battery charging, optimizing power usage and reducing dark current generation when the vehicle is not in use.
Implementation Method 1
a solar panel mounted on the vehicle to perform solar power generation
Data Source
AI summary
A solar charging system and method for a vehicle may include a battery mounted in the vehicle, a solar panel mounted on the vehicle to perform solar power generation, and a solar controller that receives electricity generated from the solar panel to operate, and controls charging of the battery using the electricity.