Controller for Portable Computing Device Battery Performance Management
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Solution Overview
Problem
Portable computing devices experience reduced system performance in battery mode due to excessive power consumption, leading to a poor user experience as the battery capacity is exceeded, necessitating a method to balance performance with battery capability.
Innovation Solution
A controller is integrated between the CPU, graphics processing unit, and battery module to dynamically adjust the performance of these components based on battery capacity, power, current, voltage, and temperature, allowing for gradual reduction and restoration of performance to optimize system settings and extend battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the system operates in battery mode with high performance settings, then the user experience is improved, but the battery capacity is exceeded and system performance must be reduced
Solution Approach 1:
The system dynamically adjusts performance parameters of the CPU and graphics processing unit based on real-time battery status monitoring. The controller continuously monitors battery capacity, power, current, voltage, and temperature, and adjusts performance levels accordingly to balance user experience with battery service life.
Solution Approach 2:
The system implements a feedback mechanism where the controller monitors battery status parameters and uses this information to adjust performance settings. The performance adjustment is based on feedback from battery capacity, power, current, voltage, and temperature measurements, creating a closed-loop control system.
2Reliability
If the system power consumption is greater than the designed battery capability, then the system performance is reduced to ensure battery operation, but the user feels frustrated due to reduced performance
Solution Approach 1:
The system transitions from static performance settings to dynamic adjustment based on battery status. The controller adjusts performance parameters in real-time according to battery capacity, power, current, voltage, and temperature, allowing the system to maintain reliability while adapting to changing battery conditions.
Solution Approach 2:
The system changes performance parameters of the CPU and graphics processing unit based on battery status parameters. By adjusting clock frequencies, voltage levels, and power consumption settings according to battery conditions, the system maintains stable operation while optimizing user experience.
3Productivity
If the controller gradually reduces or restores performance of CPU or graphics processing unit, then optimal settings are achieved between system performance and battery capability, but the system complexity increases
Solution Approach 1:
The controller is designed as a multi-functional component that performs battery status monitoring, performance parameter adjustment, and gradual transition management. By consolidating these functions in a single controller, the system achieves optimal performance-battery balance without proportionally increasing overall system complexity.
Data Source
AI summary
A portable computing device including a central processing unit (CPU) and a controller is provided. The controller is coupled between the CPU, a graphics processing unit, and a battery module. The controller determines whether to adjust performance of the CPU and the graphics processing unit according to at least one of a battery capacity, a battery power, a battery current, a battery voltage, or a battery temperature of the battery module.