Vehicle ECU Wake-Up Monitoring for Predictive Maintenance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current vehicle computers are not adapted to the increased demands of new vehicle services and electrification, leading to potential premature failure due to overuse, necessitating improved monitoring and predictive maintenance.
Innovation Solution
A remote server-based method for monitoring vehicle computers by intercepting wake-up requests, timestamping, and tracking the number of wake-ups to determine stress levels, with alerts sent if the maximum number of wake-ups is exceeded.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If vehicle computers are designed for normal operation of 15 years or 240,000 km, then device complexity is reduced and ease of manufacture is improved, but reliability deteriorates when computers are overused due to increased services and electrification
Solution Approach 1:
The system performs preliminary action by monitoring wake-up requests and accumulating operating time data before actual computer failure occurs. The remote server tracks the theoretical operating time of each ECU and compares it with actual usage patterns, enabling early detection of overuse conditions and predictive maintenance interventions.
Solution Approach 2:
The invention implements feedback by continuously monitoring wake-up requests and operating time through the remote server. The system receives feedback from wake-up requests, processes the data to determine elapsed time and theoretical operating time, and uses this feedback to predict potential failures and trigger maintenance alerts before computers actually fail.
2Measurement precision
If remote monitoring is implemented at vehicle level, then measurement precision of computer operation is improved, but use of energy and device complexity at vehicle level increase
Solution Approach 1:
The invention introduces an intermediary element - the remote server - that performs the complex monitoring and analysis functions. The vehicle's telematics unit simply transmits wake-up request data to the remote server, which then handles timestamping, elapsed time calculation, theoretical operating time determination, and failure prediction. This intermediary approach enables precise monitoring without burdening the vehicle's limited resources.
Solution Approach 2:
The system replaces potential vehicle-level processing mechanics with remote server-based computational mechanics. Instead of requiring the vehicle's computer to perform complex monitoring calculations locally, the invention substitutes this with remote processing power, cloud-based data analysis, and server-side algorithm execution, thereby conserving vehicle energy and computational resources.
3Reliability
If the number of wake-ups is monitored to predict computer failure, then reliability is improved, but device complexity and difficulty of detecting and measuring increase
Solution Approach 1:
The invention extracts the complex monitoring logic from the vehicle's onboard systems and places it on the remote server. The vehicle's telematics unit only needs to forward wake-up request data, while the remote server performs extraction of timestamp information, calculation of elapsed time, determination of theoretical operating time, and accumulation of wake-up counts. This extraction simplifies the vehicle-side implementation while maintaining comprehensive monitoring capability.
Solution Approach 2:
The system uses copying by creating a virtual representation of the computer's operational state through timestamp data and wake-up request records stored on the remote server. Instead of requiring complex sensors or additional hardware in the vehicle, the invention copies the essential operational information (wake-up times, elapsed durations) to the remote server where analysis is performed, thereby reducing vehicle-side complexity.
Data Source
Figure 1
Figure 2
AI summary
The invention relates to the supervision by a remote server (SERV) of a plurality of electronic computers installed in a land motor vehicle (VEH), the supervision comprising the acquisition of a number of computer wake-ups.