Dual Energy Storage Switching for Vehicle Load and Temperature Control
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Solution Overview
Problem
Existing vehicle power systems face inefficiencies in managing energy storage and distribution, particularly in switching between different energy storage technologies based on load conditions and temperature, which can lead to suboptimal performance and reduced battery lifespan.
Innovation Solution
A vehicle power system that includes two energy storage assemblies utilizing different technologies, with a power management system and controller to selectively couple or disconnect these assemblies based on load levels and temperature thresholds, ensuring optimal energy distribution and prolonging battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the vehicle uses a single energy storage device, then the system complexity is reduced, but the adaptability to different load conditions and temperature environments deteriorates
Solution Approach 1:
The energy storage system is segmented into multiple devices with different technologies (e.g., lithium-ion battery and lead-acid battery) that can be independently controlled. Each energy storage device has its own control circuit and can be selectively connected or disconnected from the electrical load based on operating conditions, allowing the system to adapt to different load demands and temperature environments without requiring a completely complex integrated design.
2Adaptability or versatility
If the vehicle uses multiple energy storage devices with different technologies, then the adaptability to different load conditions and temperature environments is improved, but the device complexity increases
Solution Approach 1:
The system employs dynamic control through switches that can selectively connect or disconnect energy storage devices based on real-time operating conditions. The controller continuously monitors load demands and temperature conditions, dynamically adjusting which energy storage device is active. This dynamic reconfiguration allows the system to maintain optimal performance across varying conditions while managing complexity through automated control logic rather than fixed complex architecture.
Solution Approach 2:
A controller acts as an intermediary between the multiple energy storage devices and the electrical load. The controller receives inputs from temperature sensors and load condition detectors, processes this information, and makes intelligent decisions about which energy storage device should be connected. This intermediary component simplifies the overall system architecture by centralizing the decision-making logic, preventing the need for complex direct interactions between multiple energy storage devices and various loads.
3Power
If the second energy storage device remains connected during high power draw, then the power supply capacity is maintained, but the battery lifespan is reduced due to suboptimal operating conditions
Solution Approach 1:
The system incorporates feedback mechanisms through temperature sensors and load condition detectors that continuously monitor operating parameters. When high power draw or extreme temperatures are detected, the controller receives this feedback and automatically adjusts the configuration by disconnecting the second energy storage device from the electrical load. This feedback-driven control ensures the battery operates within optimal parameters, extending lifespan while maintaining adequate power supply capacity through the first energy storage device.
4Duration of action of stationary object
If the controller disconnects the second energy storage device based on temperature and load conditions, then the battery lifespan is extended, but the system complexity increases due to additional control mechanisms
Solution Approach 1:
The energy storage system is designed to be self-managing through automated control mechanisms. Temperature sensors and load condition detectors automatically monitor the operating environment, and the controller autonomously decides when to connect or disconnect the second energy storage device based on pre-programmed criteria. This self-service capability extends battery lifespan by preventing operation under suboptimal conditions without requiring complex external monitoring or manual intervention, as the system manages itself through integrated sensing and control logic.
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
The system efficiently manages energy storage and distribution, optimizing performance by switching between energy storage technologies based on load and temperature conditions, thereby enhancing vehicle operation and extending battery lifespan.
Implementation Method 1
an electromagnetic device configured to receive rotational mechanical energy and generate electrical energy
Data Source
AI summary
A power system for a vehicle includes a first energy storage device coupled to an electrical load, a second energy storage device, a first switch and a second switch arranged in series between the second energy storage device and the electrical load, such that the second switch is electrically decoupled from the second energy storage device when the first switch is open, and a controller coupled to the first switch. The controller is configured to command the first switch to disconnect the second energy storage device from the electrical load in response to an indication of a power draw from the electrical load. The first energy storage device utilizes a first energy storage technology. The second energy storage device utilizes a second energy storage technology different from the first energy storage technology.