Charging Power Control for Battery-Driven Robot Actions
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Solution Overview
Problem
Existing small electronic devices powered by rechargeable secondary batteries face challenges in efficiently managing power supply and charge states, particularly during charging, which can lead to overheating and inefficient battery usage.
Innovation Solution
A control device that includes a processor to estimate power requirements, control electric power supply to operating parts and secondary batteries, and limit actions when insufficient power is detected, using a CCCV charging method and adjusting power transmission based on load fluctuations to maintain optimal battery charge states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the robot performs actions while charging, then the robot maintains operational functionality and expresses emotions, but the secondary battery may overheat or the charging efficiency decreases
Solution Approach 1:
The control device dynamically adjusts the power transmission amount based on real-time monitoring of battery charge state and action power consumption. When the battery charge state indicates a risk of overheating or insufficient power supply, the system automatically reduces or stops action execution, transitioning from static to dynamic control to maintain both operational functionality and battery safety
Solution Approach 2:
The system implements a feedback mechanism where the control device continuously monitors the battery charge state and power consumption during actions. Based on this feedback, the control device adjusts the power transmission amount from the external charger, creating a closed-loop control system that balances operational versatility with battery reliability
2Productivity
If the robot executes power-consuming actions during charging, then the robot maintains engagement and functionality, but the power supply may become insufficient causing interruptions
Solution Approach 1:
The control device performs preliminary assessment of power requirements before executing actions during charging. By evaluating the battery charge state and estimating power consumption in advance, the system determines whether sufficient power is available, preventing power supply interruptions before they occur
Solution Approach 2:
The system dynamically adjusts action execution based on real-time power availability. When power consumption exceeds the safe threshold during charging, the control device automatically modifies or stops actions, ensuring continuous and stable power supply while maintaining productivity within safe limits
3Duration of action of stationary object
If the robot limits actions to preserve battery charge, then the battery longevity is improved, but the robot's emotional expression and engagement are reduced
Solution Approach 1:
The control device implements dynamic action management that adapts to real-time battery charge state. Instead of static limitation, the system allows full emotional expression when battery charge is sufficient and automatically adjusts action intensity or type when charge becomes limited, maintaining battery longevity while preserving emotional expression capability across different charge conditions
Data Source
AI summary
A control device includes a processor. The processor controls an electric power supply to an operating part, and charging and discharging of a secondary battery; estimates electric power being supplied to the operating part and the secondary battery; acquires a charge state for a case of charging the secondary battery; and when a determination is made that the electric power estimated by the processor and being supplied to the operating part and the secondary battery is less than electric power required for a predetermined action to be executed by the operating part and, also, the charge state of the secondary battery is a predetermined charge state, controls so as to limit the predetermined action.