Battery Pack Wireless Damage Detection From Communication Loss
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Solution Overview
Problem
Existing battery packs are vulnerable to damage from external impacts or water penetration, which compromises their protective function and disrupts wireless communication within the vehicle, making it difficult to monitor their condition effectively.
Innovation Solution
A battery pack monitoring device with internal and external wireless communicators that establish wireless communication to detect damage by analyzing the establishment state of communication, allowing estimation of damage presence and location based on communication frequency and intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If wireless communication is used to monitor battery pack condition, then monitoring capability is improved, but reliability is worsened when damage occurs
Solution Approach 1:
The patent introduces a wireless communication state detection mechanism as an intermediary to monitor the health of the wireless communication channel itself. By placing wireless communicators both inside and outside the battery pack and detecting the establishment state of communication between them, the system can infer battery pack damage (such as casing cracks or water penetration) without relying on the wireless communication to remain perfectly reliable under all conditions. The communication state becomes a diagnostic indicator rather than a critical dependency.
2Difficulty of detecting and measuring
If battery pack damage is monitored using wireless communication establishment state, then detection capability is improved, but device complexity is worsened
Solution Approach 1:
The patent applies self-service by utilizing the existing wireless communication infrastructure to monitor its own health and detect battery pack damage. The wireless communicators inside and outside the battery pack use the communication establishment state (whether communication can be successfully established) as a self-diagnostic indicator of battery pack integrity. This eliminates the need for separate, dedicated damage detection sensors or complex additional monitoring equipment, as the system monitors itself through its existing communication functionality.
Data Source
AI summary
A battery pack monitoring device includes a battery pack, at least one first wireless communicator, at least one second wireless communicator, and a control device. The battery pack is installed in a vehicle and includes a battery. The at least one first wireless communicator is disposed inside the battery pack and can perform wireless communication. The at least one second wireless communicator is disposed in the vehicle outside the battery pack and can perform wireless communication. The control device includes one or more processors, and one or more memories. The one or more processors are configured to execute a process including trying the wireless communication between the first wireless communicator and the second wireless communicator, and estimating the presence and/or absence of a damage to the battery pack based on an establishment state of the wireless communication between the first wireless communicator and the second wireless communicator.