EV Charging Robot Power Curve Control for Battery Thermal Limits
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Solution Overview
Problem
Conventional charging robots for electric vehicles often require maximum discharge power, leading to battery health degradation and safety risks such as overloading and thermal fatigue due to high temperatures.
Innovation Solution
A method and apparatus that determine a charging and discharging power curve based on battery management information, considering battery and gun line temperatures, to ensure safe and efficient charging/discharging operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If maximum discharge power is required for charging/discharging operations, then charging/discharging efficiency is improved, but battery health degree deteriorates and safety risks increase
Solution Approach 1:
The patent implements dynamic power curve regulation that adjusts charging/discharging power in real-time based on battery temperature, gun line temperature, and battery health degree. The power curve is not fixed but dynamically modified to balance efficiency and safety, resolving the contradiction between maximum power output and battery health preservation.
Solution Approach 2:
The patent changes the power parameter from a fixed maximum value to a variable value that adapts to real-time conditions. By modifying the power curve based on temperature and health degree parameters, the system achieves both high efficiency during optimal conditions and safety protection when limits are approached.
2Productivity
If maximum discharge power is required for charging/discharging operations, then charging/discharging efficiency is improved, but safety risks such as overloading and thermal fatigue increase
Solution Approach 1:
The patent employs a feedback mechanism that continuously monitors battery temperature, gun line temperature, and battery health degree. Based on this feedback, the system dynamically adjusts the power curve to prevent overloading and thermal fatigue, thereby maintaining safety while preserving charging/discharging efficiency within safe operating limits.
Solution Approach 2:
The patent applies beforehand cushioning by establishing safety thresholds for temperature and health degree before critical failures occur. The system proactively reduces power when approaching these thresholds, preventing overloading and thermal fatigue before they can cause safety incidents.
3Use of energy by moving object
If high power charging/discharging is performed for long duration, then energy transfer is improved, but thermal fatigue failure at contact points occurs
Solution Approach 1:
The patent implements dynamic power regulation that responds to gun line temperature in real-time. When temperature approaches critical levels, the system automatically reduces power output, preventing thermal fatigue failure while maximizing energy transfer during safe operating conditions.
Solution Approach 2:
The system employs periodic monitoring and adjustment of power levels based on temperature feedback. This periodic action allows the system to maintain high energy transfer during safe periods while intermittently reducing power when thermal limits are approached, preventing cumulative thermal damage.
Data Source
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AI summary
The present application relates to a charging and discharging control method and apparatus, a computer device, a storage medium, and a computer program product. The method includes: acquiring battery management information of an electric vehicle corresponding to a charging/discharging request in response to receiving the charging/discharging request; determining a charging and discharging power curve of the electric vehicle according to the battery management information; determining a target charging robot matching the charging and discharging power curve; and performing charging/discharging processing on the electric vehicle by the target charging robot according to the charging and discharging power curve.