Adaptive Engine Oil Level Detection Using Driving-State Parameters
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Solution Overview
Problem
Existing engine oil filling level monitoring systems in vehicles lack precision and reliability across various driving states due to rigid time components and failure to account for driving-state-dependent parameters, leading to suboptimal display quality and oil level detection.
Innovation Solution
The method determines the duration of engine oil filling levels using driving-state-dependent parameters such as vehicle speed, engine speed, and temperature to adjust time components, allowing for a more accurate and adaptive assessment of the oil level by using these parameters as weighting factors to improve display quality and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If rigid state times are used to determine engine oil filling level duration, then the evaluation method is simple and cost-effective, but the display quality and reliability of oil level detection deteriorate across various driving states
Solution Approach 1:
The patent applies dynamics by making the state time components variable rather than rigid. The state time components are adapted continuously based on driving-state-dependent parameters such as vehicle speed, engine speed, and temperature. This allows the evaluation system to remain cost-effective while significantly improving the reliability of oil level detection across different driving conditions.
Solution Approach 2:
The patent changes the parameters used in the evaluation by introducing driving-state-dependent parameters (vehicle speed, engine speed, temperature) that continuously adapt the state time components. This parameter adaptation resolves the contradiction by maintaining computational simplicity while improving detection reliability through context-aware timing adjustments.
2Device complexity
If rigid time components are used for summing state durations, then the evaluation method is simple, but the precision of engine oil filling level measurement deteriorates
Solution Approach 1:
The patent makes the time components dynamic by continuously adapting them based on driving-state-dependent parameters. This resolves the contradiction between simplicity and precision by maintaining a relatively simple evaluation structure while incorporating adaptive timing that significantly improves measurement precision across varying driving conditions.
Solution Approach 2:
The patent introduces parameter changes by using driving-state-dependent parameters to continuously adapt the state time components. This approach maintains evaluation simplicity while improving measurement precision through context-sensitive time adjustments based on vehicle speed, engine speed, and temperature.
3Device complexity
If parameters such as vehicle speed and engine speed are not considered, then the evaluation method is simple, but the display quality of engine oil filling level deteriorates in different driving states
Solution Approach 1:
The patent incorporates driving-state-dependent parameters (vehicle speed, engine speed, temperature) to continuously adapt the state time components. This resolves the contradiction by maintaining relatively simple evaluation logic while significantly improving display quality through parameter-based adaptations that account for different driving conditions.
Solution Approach 2:
The patent applies dynamics by making the evaluation adaptive to changing driving conditions through continuous parameter adaptation. This resolves the contradiction between simplicity and information quality by incorporating speed and temperature dependencies that enhance display quality without substantially complicating the evaluation method.
4Ease of manufacture
If speed-independent time components are used, then the system is cost-effective, but the precision of oil level detection deteriorates at different vehicle speeds
Solution Approach 1:
The patent makes the time components speed-dependent through continuous adaptation based on vehicle speed and other driving parameters. This resolves the contradiction between cost-effectiveness and precision by maintaining a relatively simple evaluation structure while incorporating speed-based adaptations that significantly improve detection precision across different driving speeds.
Solution Approach 2:
The patent introduces speed-dependent parameter changes to adapt the state time components continuously. This resolves the contradiction by maintaining cost-effectiveness through a simple evaluation framework while improving precision through parameter adaptations that account for vehicle speed, engine speed, and temperature variations.
Data Source
AI summary
In a method and apparatus for measuring and displaying the engine oil filling level in a vehicle having a filling level switch or sensor, measured values of the switch or sensor, in the form of determined time components, are summed to determine a state duration of a particular state of the engine oil filling level. The state duration is compared with predefined time limiting values of the respective state of the engine oil filling level. According to the invention, the length of the individual time components is determined as a function of driving-state-dependent parameters.