Dual Battery Circuit With Voltage Conversion for Vehicle Power Control
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Solution Overview
Problem
Existing technologies lack a hardware basis for effectively controlling double battery packs, including power type and energy type battery packs, which is essential for efficient power management in vehicles.
Innovation Solution
A battery circuit is designed with a power source end, a first battery pack, a second battery pack of a different type, a voltage transformation unit, switches, and a ground end, allowing for the connection and control of both battery packs to provide a stable power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If double battery packs (power type and energy type) are used together, then power management efficiency and system reliability are improved, but device complexity increases due to the need for additional control hardware and circuit configuration
Solution Approach 1:
The battery system is segmented into two distinct battery packs (power type battery pack and energy type battery pack), each with independent positive and negative electrodes. This segmentation allows each battery pack to be optimized for its specific function while maintaining independent control capabilities, thereby improving overall system reliability without requiring overly complex integrated control mechanisms.
Solution Approach 2:
A voltage transformation unit is introduced as an intermediary component between the first battery pack and the second battery pack. This voltage transformation unit facilitates proper voltage matching and power flow control between the two different battery types, enabling efficient power management while keeping the control architecture relatively simple and manageable.
2Adaptability or versatility
If voltage transformation unit and switches are added to control double battery packs, then power management capability is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The voltage transformation unit is designed to perform multiple functions: it can transform voltage between the two battery packs, enable bidirectional power flow, and provide isolation between the different battery chemistries. This multi-functionality reduces the need for separate dedicated components for each function, thereby improving power management capability while limiting the increase in manufacturing complexity.
Solution Approach 2:
The control system employs dynamic switching mechanisms where the switches can be controlled to connect or disconnect battery packs based on real-time power management needs. This dynamic configuration allows the system to adapt to different operating conditions (charging, discharging, power delivery) without requiring permanently complex hardwired connections, thus improving versatility while maintaining manufacturing feasibility.
Data Source
AI summary
A battery circuit comprises: a power source end, a first battery pack, a second battery pack, a voltage transformation unit, a first switch, a second switch and a ground end. A positive electrode of the first battery pack is connected to the power source end, and a negative electrode of the first battery pack is connected to a positive electrode of the second battery pack; a negative electrode of the second battery pack is connected to the ground end; a first end of the first switch is connected to the power source end, and a second end of the first switch is connected to a first end of the second switch; a second end of the second switch is connected to the ground end; and the voltage transformation unit is connected between the negative electrode of the first battery pack and the second end of the first switch.