Battery Pack Data Transmission Power Control to Prevent Battery Drain
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Solution Overview
Problem
Existing battery data transmission systems, particularly those using 4G communication modules in BMS, lead to battery depletion due to continuous operation, causing vehicles to fail to start.
Innovation Solution
A data transmission apparatus for battery packs with integrated power supply circuits and communication modules that allow for controlled power distribution and efficient data transmission, including a first power supply circuit connected between the battery component and the data transmission apparatus, a second power supply circuit for internal operation, and a connection detection circuit to manage power sources, ensuring self-power supply and reducing battery drain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a 4G communication module is added to the BMS and operates continuously to transmit battery data, then data transmission reliability is improved, but battery energy is depleted causing the vehicle to be unable to start
Solution Approach 1:
The patent implements periodic action by controlling the 4G communication module to operate in cycles rather than continuously. The module alternates between working states (transmitting data) and sleep states (conserving energy), with periodic wake-up signals triggering data transmission. This periodic operation maintains data transmission reliability while significantly reducing battery energy consumption compared to continuous operation.
2Stability of the object's composition
If the 4G communication module operates continuously to ensure data transmission, then communication stability is improved, but the battery depletes causing vehicle startup failure
Solution Approach 1:
The system employs periodic action with the communication module entering sleep mode between operations and waking up at scheduled intervals to transmit data. This periodic cycle maintains communication stability by ensuring regular data transmission while minimizing energy loss during idle periods when the module remains dormant.
Solution Approach 2:
The system implements self-service through automatic wake-up mechanisms and power management circuits that control the communication module's operation without continuous external intervention. The module autonomously transitions between sleep and working states based on internal timing signals and data transmission needs, reducing overall system energy consumption while maintaining stable communication functionality.
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 solution prevents battery depletion by managing power consumption, allowing continuous data transmission without depleting the battery, ensuring the battery management system remains powered even when detached from the vehicle.
Implementation Method 1
The battery component is connected to an input end of a second power supply circuit, and an output end of the second power supply circuit outputs a preset operating voltage of the data transmission apparatus
Implementation Method 2
An output end of the second power supply circuit outputs a preset operating voltage of the data transmission apparatus
Data Source
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AI summary
A data transmission apparatus for a battery pack, a control method therefor, a battery system, and a device are provided. The battery pack (401) is provided with a battery management system. The data transmission apparatus (100) includes a battery component (11), a first power supply circuit (12), a second power supply circuit (13), and a data transmission module (14) configured to communicatively connect to the battery management system. The data transmission module (14) is configured to receive and transmit battery data sent by the battery management system. The first power supply circuit (12) is electrically connected between the battery component (11) and a power output connection end of the data transmission apparatus (100). The battery component (11) is connected to an input end of the second power supply circuit (13). An output end of the second power supply circuit (13) outputs a preset operating voltage of the data transmission apparatus (100).