Engine Oil Consumption Calculation via Intake Air Pressure Correction
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Solution Overview
Problem
Existing methods fail to accurately and efficiently determine the consumption amount of engine oil in vehicles, leading to excessive oil combustion and increased harmful components in exhaust gases, necessitating a precise measurement for both development and operational stages.
Innovation Solution
A method and device utilizing a controller to determine engine oil consumption based on stored data, including correction values for intake air pressure, coasting drive maintenance time, and travel distance, with a display notification for when the oil level falls below a reference value.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing methods are used to determine engine oil consumption, then the determination process is simple, but the measurement precision is insufficient leading to inaccurate consumption amounts
Solution Approach 1:
The system pre-stores multiple correction values in memory corresponding to different intake air pressure conditions before operation. When determining oil consumption, the controller simply retrieves and applies the appropriate correction value based on current conditions, avoiding complex real-time calculations while improving measurement precision through pre-computed corrections.
Solution Approach 2:
The system changes the parameter of intake air pressure from a static assumption to a dynamic variable that directly influences the determination. By storing correction values for different intake air pressure levels and selecting based on actual conditions, the system adapts to varying operating conditions, significantly improving consumption measurement precision without requiring a completely complex new system.
2Object-affected harmful factors
If engine oil consumption is not accurately monitored, then the monitoring system remains simple, but harmful emissions increase due to excessive oil combustion
Solution Approach 1:
The system continuously monitors actual intake air pressure, automatically selects the appropriate correction value from stored data, and applies it to calculate real-time oil consumption. This automated feedback loop ensures accurate monitoring without requiring manual intervention, reducing harmful emissions while maintaining reasonable automation levels through systematic data retrieval and calculation.
Solution Approach 2:
The controller automatically performs the entire determination process including retrieving intake air pressure data, selecting appropriate correction values from memory, calculating corrected consumption amounts, and generating notifications without external intervention. This self-service automation reduces harmful emissions through continuous accurate monitoring while keeping the system relatively simple through automated routine operations.
3Measurement precision
If correction values for multiple parameters are stored in memory, then the measurement precision improves, but the memory requirements and device complexity increase
Solution Approach 1:
The system segments the correction data into discrete values corresponding to specific intake air pressure conditions, storing them in organized memory locations. This segmentation allows efficient retrieval of only the necessary correction value for current operating conditions, improving measurement precision while keeping memory requirements manageable through structured data organization rather than storing all possible continuous variations.
Data Source
AI summary
A method for determining a consumption amount of an engine oil of a vehicle includes starting, by a controller, an engine of the vehicle; and extracting and determining, by the controller, a consumption amount of the engine oil of the vehicle per unit time from a memory storing the consumption amount of the engine oil per unit time, in response to a speed of the started engine and an intake air pressure of the started engine.