Hybrid Battery Supercapacitor Power Arbitration Module
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Solution Overview
Problem
Current electrical power management systems for internal combustion engines are bulky, complex, and unable to provide quick bursts of energy required by engine components, and they fail to effectively manage power disruptions that can lead to ECM resets and data loss.
Innovation Solution
An electrical power management system that includes a battery and a supercapacitor, with a power arbitration module to selectively provide power from either or both sources, ensuring continuous power supply to engine components, particularly during engine cranking events, and includes a recharger for the supercapacitor to maintain energy levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a backup battery is used to provide continuous power to the ECM, then power reliability is improved, but device complexity and volume increase
Solution Approach 1:
The patent combines the backup battery and supercapacitor into a single hybrid power system that shares common control and management infrastructure. The power arbitration module manages both energy sources together, reducing overall system complexity compared to separate backup systems while maintaining continuous power supply capability.
Solution Approach 2:
The power arbitration module acts as an intermediary between the battery, supercapacitor, and ECM. It intelligently selects power sources and manages power flow, simplifying the control architecture compared to direct battery-ECM connections while ensuring reliable power delivery during disruptions.
2Reliability
If a backup battery is used to ensure continuous power, then power reliability is improved, but the system becomes bulky and requires robust harnesses
Solution Approach 1:
By merging the backup battery and supercapacitor into a hybrid system with shared management infrastructure, the overall volume required is reduced compared to traditional backup battery systems that require dedicated harnesses and separate control systems.
Solution Approach 2:
The patent changes the energy storage parameters by introducing a supercapacitor with high power density characteristics. This allows the system to achieve the same power reliability with smaller total volume, as supercapacitors can deliver high currents in short durations without requiring large physical size or robust harnesses.
3Duration of action of moving object
If a traditional battery is used to power the ECM, then continuous power is provided, but quick bursts of energy during cranking events cannot be delivered
Solution Approach 1:
The hybrid power system merges the long-duration energy storage capability of the battery with the high-power burst capability of the supercapacitor. During engine cranking events, the supercapacitor delivers quick bursts of energy, while the battery provides sustained power, achieving both long duration and high power delivery simultaneously.
Solution Approach 2:
The power arbitration module dynamically switches between power sources based on real-time power demands. During high-power cranking events, it activates the supercapacitor; during normal operation, it uses the battery. This dynamic adaptation allows the system to optimize both duration and power delivery characteristics for different operating conditions.
4Duration of action of stationary object
If the battery is disconnected to prevent power drain, then battery life is extended, but the ECM loses power and data
Solution Approach 1:
The power arbitration module serves as an intermediary that prevents direct disconnection of the ECM from power sources. Even when the battery is disconnected or depleted, it activates the supercapacitor to maintain ECM power, thereby extending effective battery life while ensuring continuous ECM operation and data preservation.
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 provides a compact, efficient power management system that ensures uninterrupted power supply to engine components, reduces the need for bulky backup batteries, and enhances the reliability of engine control systems by providing quick bursts of energy when needed.
Implementation Method 1
a supercapacitor that is selectively electrically coupled to the power consumption device
Implementation Method 2
a battery that is selectively or non-selectively electrically coupled to the power consumption device
Data Source
AI summary
According to one embodiment, an electrical power management system for an internal combustion engine system with a power consumption device includes a battery and a supercapacitor. The battery is coupleable in electrical power providing communication with the power consumption device. The supercapacitor is coupleable in electrical power providing communication with the power consumption device.