Vehicle Battery Leakage Detection Timing to Prevent Pack Interference
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Solution Overview
Problem
In vehicles equipped with multiple replaceable battery packs that can execute electrical leakage detection processes, these processes may interfere with each other, leading to abnormal execution and incorrect detection of electrical leakage.
Innovation Solution
A control device for vehicles with multiple replaceable batteries, featuring a processor and communication unit that select specific batteries to execute the electrical leakage detection process, reducing interference between battery packs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If all battery packs execute electrical leakage detection processes, then complete coverage is achieved, but interference causes abnormal execution and incorrect detection
Solution Approach 1:
The patent applies partial action by having only certain battery packs execute electrical leakage detection at given times rather than all battery packs continuously. The control device determines which battery packs need to execute detection based on communication status and system requirements, achieving sufficient coverage without the interference that would result from universal simultaneous execution.
2Reliability
If replaceable battery packs are equipped with electrical leakage detection functions, then safety is improved, but interference between multiple battery packs causes abnormal execution
Solution Approach 1:
The control device serves as an intermediary that coordinates the electrical leakage detection functions of multiple replaceable battery packs. It receives communication status information from battery packs, determines which packs should execute detection, and sends appropriate control instructions, thereby managing the complexity of coordinating multiple safety functions without requiring complex interactions between the battery packs themselves.
Data Source
AI summary
An ECU (control device) includes a processor and a communication unit that communicates with each of the plurality of battery packs (batteries). Each of the plurality of battery packs is configured to execute an electrical leakage detection process and is replaceable. The processor selects one battery to execute the electrical leakage detection process from the battery packs, based on information on the communication start timings of the battery packs acquired through the communication unit.