Internal-Combustion Engine Testing TRIZ Cases

Dynamic heater gain prevents sensor cracking during pre-delivery while enabling rapid post-delivery activation.

A linear sensor array combines opacity, scattering, and ionization detection to characterize particulate matter.

Virtual and real twin spaces integrate simulated and actual data to train deep neural networks for power equipment fault diagnosis.

Sloping surface on metal terminal member prevents disengagement from misalignment or vibration while maintaining compact structure.

Heated transport line with flow dividers minimizes particle losses during simultaneous mass and size distribution measurements.

A turbocharger examination device uses a flexible sealing ring to connect detection channels without disassembling tube components.

A misfire detection device analyzes crankshaft rotation speed differentials to identify combustion faults in high-speed engines.

Universal exhaust gas oxygen sensor controller calibrates sensitivity to multiple gases for real-time air-to-fuel ratio determination.

An oxygen sensor monitors exhaust gas to detect low-speed pre-ignition events and adjust engine parameters.

Leakage diagnosis apparatus for evaporated-gas purge systems monitors pressure and gas concentration to detect system integrity.

Constant volume sampling exhaust measurement uses conditioned combustion gas to prevent dilution and improve control dynamics.

A deep learning system maps low fidelity vibration data to high fidelity pressure signals for accurate engine knock detection.

A vehicle engine system measures actual torque values and compares them against reference data to detect deviations.

Zero and synergized platinum group metal catalysts with spinel structures improve emission reduction while maintaining fuel efficiency.

Evaluating post-shutdown pressure drops with leakage loss constants differentiates pump artifacts from genuine exhaust treatment device leaks.

A processor measures operating parameters across two cylinder banks to compute performance differences for fault detection.

A resonance suppression control circuit stabilizes drive train testing systems using a mu design method with segmented vibration models.

A pressure sensor measures exhaust gas supply line pulsations to determine engine operational state.

An annular groove filled with an elastomeric sealing member improves airtightness between the housing and sensor body without increasing assembly complexity.

A misfire detection system compensates for rotation time errors using pre-stored manufacturing and combustion variation data.

Virtual data bins segregate particle filter diagnostic signals to resolve noise versus accuracy trade-offs.

Disposable acoustic sensors monitor vibration levels to identify degraded cylinders, reducing calibration complexity and technician subjectivity.

Electronic controller coordinates vacuum bypass and purge flow valves to stabilize air pressure for evaporative emission system testing.

A compact gas sensor assembly uses a biasing apparatus to oppose diaphragm pressure.

A sensor system detects DA converter switching element failures by analyzing inspection current frequency components.

Dynamic thresholds adapt to fuel-cut operations, eliminating false negatives from static comparison methods.

Electrocardiogram sensors detect motor vibration harmonics to estimate remaining operational life.

Differential pressure sensors detect exhaust obstructions to trigger alarms and lower windows, preventing carbon monoxide buildup.

Flow meters measure pump flow rates to trigger maintenance notifications, preventing performance degradation from undetected deterioration.

A crankcase ventilation breach detection method uses an absolute pressure sensor and a gauge pressure sensor to monitor system integrity.

An engine RPM monitoring controller assigns priority to stored data for specific events.

Dynamic sampling rate adjustment reduces calculation time loads while maintaining combustion factor estimation accuracy.

A single-cylinder simulation estimates residual burned gas fraction using measured cylinder pressure and airflow inputs.

An elastic tube cap prevents heat shield slippage on exhaust sensors by securing lead wires against high-temperature loosening.

Parallel wire electrodes and thermistors measure oil conductivity and temperature to detect coolant intrusion and fuel dilution before engine damage occurs.

Calculating separate NOx purification rates across temperature ranges determines diesel oxidation catalyst deterioration without direct NO2 detection.

Detects exhaust gas oxygen sensor degradation from sealant off-gassing by applying voltage corrections to restore measurement accuracy.

A discrete-level exhaust gas sensor measures control interventions to calculate oxygen storage capability in emission systems.

A controller measures and holds average motor speed to compare pressure curves against stored references for injector diagnosis.

Diagnostic method estimates high-pressure turbine power using dual data sets to identify leaks without boost regulation calibration.

A dilution air system mixes exhaust gas with clean air to enable precise mass flow determination using a Venturi nozzle.

Axial ribs separate the sheath from the inner wall during injection, preventing displacement and ensuring complete resin sealing against external forces.

A diesel engine combustion diagnosis device calculates rotational fluctuation to determine cylinder state.

Spectrogram denoising discriminates harmonic content from noise to accurately monitor aircraft engine speed.

Dynamic background noise learning compensates for operating condition changes, resolving false knock indications in vibration sensors.

A control system determines air diverter valve position using intercooler efficiency models and ambient sensor data.

A burner-based test system with a rotating drum rapidly exchanges aftertreatment devices, resolving slow certification bottlenecks.