Battery State Determination via In-Vehicle and Server Segmentation
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Solution Overview
Problem
Existing battery state determination systems face challenges in achieving real-time characteristics for battery deterioration assessment due to the need for data transmission and processing, which can be delayed when relying on external devices like cloud servers.
Innovation Solution
A battery state determination system comprising in-vehicle devices and a server device that perform localized deterioration diagnosis and data processing, with load management to ensure real-time processing by distributing diagnostic tasks and data transmission across multiple devices, including a server, to enhance the system's real-time capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If battery deterioration diagnosis is performed using external cloud servers, then processing capability is improved, but real-time characteristics deteriorate due to data transmission time
Solution Approach 1:
The patent segments the battery state determination system into in-vehicle devices (ECUs) and server devices, distributing processing tasks. The in-vehicle devices perform local data collection and preliminary processing, while server devices handle complex deterioration diagnosis calculations. This segmentation allows real-time monitoring at the vehicle level while leveraging server computing power for accurate deterioration assessment.
Solution Approach 2:
The patent introduces communication networks as intermediaries between in-vehicle devices and server devices, enabling data transmission and coordination. The intermediary infrastructure allows the system to maintain real-time characteristics by processing data locally when needed while transmitting only essential information to servers, reducing transmission delays.
2Loss of time
If all diagnostic processing is performed in the in-vehicle device, then real-time characteristics are improved, but device complexity and processing load increase
Solution Approach 1:
The patent divides the diagnostic processing load between in-vehicle devices and server devices. In-vehicle devices handle real-time data acquisition and basic monitoring functions, while server devices perform computationally intensive deterioration diagnosis calculations. This segmentation reduces the processing load on in-vehicle devices while maintaining real-time response capabilities.
Solution Approach 2:
The patent extracts complex deterioration diagnosis processing from in-vehicle devices and relocates it to server devices. By taking out the computationally intensive tasks from the vehicle's embedded systems, the patent reduces device complexity and processing load on in-vehicle devices while maintaining accurate deterioration assessment capabilities.
3Reliability
If multiple in-vehicle devices perform diagnosis, then reliability is improved, but coordination complexity increases
Solution Approach 1:
The patent segments the diagnostic function across multiple in-vehicle devices (e.g., different ECUs monitoring various battery parameters). Each device independently performs monitoring and data collection, improving reliability through distributed sensing. The segmentation approach allows devices to operate autonomously while contributing to the overall diagnostic system.
Solution Approach 2:
The patent merges the diagnostic results from multiple in-vehicle devices at the server level. By combining data and diagnostic outcomes from multiple sources, the system achieves improved reliability and comprehensive battery state assessment. The merging process consolidates information from distributed devices, reducing coordination complexity by centralizing result integration.
Data Source
AI summary
A battery state determination system includes a first in-vehicle device and a server device, the first in-vehicle device includes a first acquisition part that acquires physical quantity data related to a state of a battery, a first diagnostic part that performs deterioration diagnosis on the battery at a first operation cycle on the basis of the physical quantity data, and a first transmission part that transmits the physical quantity data and the diagnostic results of deterioration diagnosis to the server device, and the server device includes a reception part that receives the physical quantity data or the diagnostic result of the deterioration diagnosis from the first in-vehicle device, and a server-side processing part that performs a processing other than the deterioration diagnosis at an operation cycle which is longer than the first operation cycle on the basis of the diagnostic result of the deterioration diagnosis and/or the physical quantity data.