Wireless Battery Charging via Pulse-Initiated Communication
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Solution Overview
Problem
Existing battery management systems and chargers face challenges in establishing reliable wireless communication, particularly when multiple rechargeable batteries are charged simultaneously, leading to potential misidentification and suboptimal charging profiles due to fragile data cables and compatibility issues with various connectors.
Innovation Solution
A system comprising a rechargeable battery with an integrated battery management system and a battery charger, where the charger applies an electric pulse signal to initiate wireless communication, allowing the battery management system to broadcast its identity and status information, enabling the charger to adapt the charging protocol based on received data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired communication interface is used between battery and charger, then data exchange is possible, but the data cable is fragile and prone to damage
Solution Approach 1:
The patent replaces the mechanical wired connection (data cable) with a wireless communication system. The battery management system and charger communicate via wireless signals, eliminating the physical cable that was prone to damage while maintaining reliable data exchange for battery identification and charging control.
2Ease of operation
If wireless communication interface is used between battery and charger, then communication is convenient, but it is difficult to guarantee correct pairing when multiple batteries and chargers are present
Solution Approach 1:
The patent implements a feedback mechanism where the battery management system transmits identification data wirelessly, the charger receives and processes this data to identify the specific battery, and then establishes a targeted communication channel. This feedback loop ensures correct pairing even when multiple batteries and chargers are present, maintaining both convenience and reliability.
Solution Approach 2:
The patent introduces an identification data transmission process as an intermediary step between the battery and charger. Before establishing the charging connection, the system exchanges identification information wirelessly to ensure correct pairing, acting as a mediator that prevents misconnection while maintaining wireless convenience.
3Adaptability or versatility
If individual battery identification is implemented, then charging profile can be optimized, but communication errors may lead to misidentification
Solution Approach 1:
The patent uses feedback verification where the charger receives identification data from the battery management system, processes this information to determine the appropriate charging profile, and can verify the correctness of the identification before proceeding with charging. This feedback mechanism reduces the risk of misidentification while maintaining individualized charging optimization.
Data Source
Figure 1
AI summary
A battery charger (3) and a battery management system are proposed. As soon as the rechargeable battery (2) is connected to the battery charger (3), a controller (33) of the battery charger (3) applies one electric pulse or a sequence of electric pulses to a terminal (311) for a power line (5) for applying charging current to the rechargeable battery (2). A controller (14) of the rechargeable battery recognizes the electric pulse or the sequence of electric pulses that are received at a terminal (22) for the power line (5) of the rechargeable battery. The controller (14) of the rechargeable battery (2) in return broadcasts information on type, identity and actual battery status to the battery charger (2) via an interface (12) for wireless communication. The battery charger (3) receives this information using an interface (32) for wireless or wired communication and the controller (33) of the battery charger (3) uses this information to choose and apply an optimal charging protocol when charging the rechargeable battery (2) that is connected to the battery charger (3).