Battery Electronics Reactivation via Communication Port
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Solution Overview
Problem
Modern battery systems, particularly those in electric vehicles, face challenges in safely switching on after being disconnected due to deep discharge, as existing methods require additional auxiliary power connections, which are not always available, leading to issues with reactivation and charging.
Innovation Solution
The method utilizes the existing communication connection, specifically a bus communication system, to supply energy to the battery electronics, allowing them to be reactivated without an external power source, by transmitting a signal that exceeds a defined energy threshold, enabling the battery system to switch back on and resume charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery electronics are completely disconnected from the battery cells to protect against deep discharge, then the battery system safety is improved, but the ability to reactivate the battery system is lost
Solution Approach 1:
The communication port serves as an intermediary power supply path that enables reactivation of the battery electronics without requiring external auxiliary power connections. The control device transmits energy through the existing communication connection to reactivate the battery electronics, which have been disconnected for protection, thus resolving the contradiction between safety disconnection and reactivation capability.
2Ease of operation
If additional auxiliary power connections are provided for reactivating battery electronics, then the reactivation capability is improved, but the device complexity increases
Solution Approach 1:
The communication port is designed to serve dual functions: data communication and temporary power supply for reactivation. By making the communication connection multi-functional, the patent eliminates the need for separate auxiliary power connections, thus improving reactivation capability while avoiding increased device complexity.
Solution Approach 2:
The battery system uses its own existing communication infrastructure to provide the power needed for reactivation, rather than requiring external auxiliary power sources. The control device leverages the built-in communication port to deliver the necessary energy, making the system self-sufficient for reactivation operations.
3Ease of operation
If the battery electronics remain active to allow easy reactivation, then the ease of operation is improved, but the self-consumption of energy increases
Solution Approach 1:
The battery electronics operate in periodic cycles: active during normal operation, completely disconnected during deep discharge protection, and temporarily reactivated through the communication port when reactivation is needed. This periodic activation pattern minimizes self-consumption while maintaining reactivation capability.
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 approach eliminates the need for additional power sources, prevents undefined charging, and ensures safe reactivation of the battery system, maintaining energy efficiency and protection mechanisms, even during transport or storage, without requiring specialized training or additional connectors.
Implementation Method 1
supplying electrical energy to the battery electronics via the communication connection
Data Source
Figure 1
AI summary
The invention relates to a method for controlling a battery system (1) equipped with at least one battery (2) and at least one battery electronics unit (4), the battery system (1) having at least one power connection (11a) through which at least one electrical consumer can be supplied with electrical energy from the battery (2) and/or through which the battery (2) can be charged by means of a charging device, and the battery system (10a) having at least one communication connection (10a) through which a communication link (13) can be established between the battery electronics unit (4) and a control device provided outside the battery system (1), wherein the battery electronics unit (4) is supplied with electrical energy from the battery (2), and the power supply to the battery electronics unit (4) is disconnected and the battery electronics unit (4) is deactivated under predetermined operating conditions, thereby switching off the battery system (1).as well as a control system for carrying out the procedure and an electrically powered vehicle, in particular a forklift truck, with a battery system (1) and a vehicle control system. It is proposed that, in order to switch on the battery system (1), the battery electronics (4) be supplied with electrical energy via the communication port (10a) at least until the battery electronics (4) are activated.