Vehicle Load Profile Counter for Transmission Lifetime Assessment
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Solution Overview
Problem
Existing methods fail to accurately record and verify the load history of a vehicle over its lifetime, making it difficult to assess potential overloading and predict the remaining lifetime of a vehicle's transmission, which is crucial for guarantee claims and maintenance.
Innovation Solution
A control device with first and second counters is used to iteratively determine the overall weight of a vehicle and increment the appropriate counter based on predefined weight ranges, allowing for the tracking of time intervals within these ranges, thereby enabling the verification of overloading and determination of acceptable vs. overloaded conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If no load recording system is implemented, then the device complexity remains low, but the measurement precision of load history is insufficient
Solution Approach 1:
The load history is segmented into discrete weight ranges, each with an associated counter. Instead of continuously measuring and storing exact weight values, the system divides the weight spectrum into intervals (e.g., first weight range, second weight range, etc.), and each counter records the cumulative time spent in that range. This segmentation approach achieves precise load history measurement while keeping the device structure simple and manageable.
Solution Approach 2:
The system creates a simplified copy of the actual weight information by using counters that represent time accumulation in specific weight ranges. Rather than storing complex continuous weight data, the invention uses discrete counter values that copy the essential information needed for load assessment - the duration spent in each weight category - thereby achieving measurement precision with minimal complexity.
2Reliability
If detailed load history is recorded, then the reliability of guarantee claims assessment is improved, but the loss of information increases due to data storage requirements
Solution Approach 1:
The invention extracts only the essential information needed for guarantee assessment - the cumulative time spent in each weight range - and stores this in counters. By taking out and storing only this critical data rather than complete continuous weight histories, the system achieves high reliability in guarantee claims assessment while minimizing data storage requirements and avoiding information loss.
Solution Approach 2:
The system transforms the continuous weight parameter into discrete weight range categories, and the time parameter is accumulated in counters for each category. This parameter transformation allows the system to maintain reliable assessment capability while significantly reducing the information that needs to be stored, as only the accumulated time in each range category is retained rather than complete weight-time trajectories.
3Measurement precision
If continuous weight monitoring is implemented, then the prediction accuracy of transmission lifetime is improved, but the use of energy increases
Solution Approach 1:
Instead of continuous monitoring, the system uses periodic sampling to determine the current weight and update the appropriate counter. The control device periodically checks the overall weight of the vehicle and increments the corresponding counter for the current weight range. This periodic action maintains accurate transmission lifetime prediction capability while significantly reducing energy consumption compared to continuous monitoring.
Data Source
AI summary
One general aspect of the present disclosure includes a control device for use in a vehicle. The control device may include a first counter and a second counter, where the first counter is assigned to a first weight range and the second counter is assigned to a second weight range. The control device may be configured to execute the following steps in an iterative manner: determination of an overall weight of the vehicle, and incrimination of the first counter when the overall weight falls within the first range.