Centralized Vehicle Electrical Diagnostics via Power Distribution Unit
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Solution Overview
Problem
Current methods for determining the electrical system state of motor vehicles are complex and inefficient, requiring separate diagnostic functions in control devices and lacking a centralized approach for monitoring and diagnostics.
Innovation Solution
A method and system that utilize a power distribution unit in the vehicle to detect electrical state data, which are then transmitted to a central server for comparison with reference values, enabling continuous monitoring and diagnostics of the electrical system state, reducing the need for additional diagnostic functions in individual components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate diagnostic functions are integrated into control devices of individual electrical components, then diagnostic capability is provided, but device complexity and costs increase
Solution Approach 1:
The patent consolidates diagnostic functionality into a single centralized diagnostic unit that receives data from all electrical components via the CAN bus, eliminating the need for separate diagnostic functions in each control device. This merging approach maintains comprehensive diagnostic capability while significantly reducing overall system complexity.
Solution Approach 2:
The centralized diagnostic unit serves as a universal diagnostic platform that can monitor and diagnose all electrical components across the vehicle's electrical system through a single interface, rather than requiring component-specific diagnostic devices. This multi-functional approach simplifies the diagnostic architecture while maintaining broad diagnostic coverage.
2Reliability
If separate diagnostic functions are integrated into control devices, then diagnostic coverage is achieved, but manufacturing costs increase
Solution Approach 1:
By merging all diagnostic functions into a single centralized unit rather than distributing them across multiple control devices, the patent reduces the total number of diagnostic components that need to be manufactured and installed. This consolidation maintains full diagnostic coverage while lowering manufacturing costs through reduced component count and simplified assembly.
3Measurement precision
If electrical state data are continuously transmitted to a central server, then monitoring precision is improved, but data transmission volume and processing load increase
Solution Approach 1:
The diagnostic unit continuously monitors all electrical parameters but selectively transmits only those data points that indicate abnormal conditions or exceed predefined thresholds to the server. This partial transmission approach maintains high monitoring precision for detecting electrical system states while significantly reducing the volume of data that needs to be transmitted and processed.
Data Source
AI summary
The disclosure relates to a method for determining an electrical system state of at least one motor vehicle, wherein electrical state data of the at least one motor vehicle are detected on the vehicle side by means of a power distribution unit in the at least one motor vehicle, wherein the detected electrical state data are transmitted to a central server by means of a communications interface, wherein the transmitted electrical state data are compared on the server side with at least one reference value, and wherein, starting from a comparison result, the electrical system state of the at least one motor vehicle is determined and provided. The disclosure further relates to a system for determining an electrical system state of at least one motor vehicle, a motor vehicle, and a central server.