Internal-Combustion Engine Testing TRIZ Cases
- Sensor Wheel Layout for Fast, Precise Engine Angle Detection
Three indicator lengths and equidistant flanks let this engine sensor wheel determine absolute rotary angle quickly and with high precision.
- Gas Sensor Protective Layer for Condensate Thermal Shock
A roughness- and waviness-tuned protective layer moves condensate off a heated gas sensor to suppress thermal shock and cracking.
- Engine Methane Number Estimation From Combustion Heat Release
Combustion heat release and cylinder pressure are used to estimate methane number in real time without fuel sampling or prior blend data.
- Locomotive Engine Monitoring With Altitude-Compensated Exhaust Detection
Barometric pressure and dual exhaust temperature sensing reveal altitude-adjusted differentials that flag cylinder head faults early.
- Engine Combustion Parameter Reconstruction Using Multi-Sensor Fusion
Weighted fusion of crankshaft, knock, and rail pressure signals corrects map-based engine combustion parameters in real time.
- Knock Sensor Misfire Detection After Exhaust Valve Opening
Using knock sensor signals after exhaust valve opening, this case improves misfire detection reliability without added sensor complexity.
- Dual Exhaust Oxygen Sensor Diagnosis via Crossover Flow Control
Valve-controlled crossover flow and fuel correction outputs reveal which oxygen sensor is degraded, improving air-fuel control and avoiding needless replacements.
- Forced Induction Emulation with Independent Intake and Exhaust Control
Independent intake pressure, exhaust counterpressure, and air temperature control enables transient forced induction emulation for engine and fuel cell testing.
- Engine Torque Estimation Using Error Learning and Angular Acceleration
Combines baseline engine torque maps with angular-acceleration error learning to track individual variation and aging in combustion engines.
- TJI Engine Misfire Detection for Fouled Pre-Chamber Isolation
Sequential spark plug deactivation and roughness comparison isolate a fouled TJI pre-chamber during engine service.
- Engine Oil Monitoring Using Differential Pressure Proxies
Uses EODP, EOP, and RPM proxy models to detect low oil level or degraded oil quality in well-system engines before failure.
- Localized Turf Data Mapping for Uniform Grass Growth Treatment
Sensor-based turf maps guide movable lighting placement to correct uneven grass growth and reduce unnecessary field-wide maintenance.
- Engine Condensation Risk Prediction From Vehicle Use Patterns
Vehicle use state and post-stop elapsed time are combined to predict engine condensation risk and warn of cylinder corrosion abnormalities.
- AI Ignition Diagnostics for Hydrogen Engine Misfire Prediction
Ignition coil signals are used with AI to predict preignition and misfire in hydrogen engines without in-cylinder pressure sensors.