Internal-Combustion Engine Testing TRIZ Cases

Segmented pressure monitoring characterizes leakage paths to prevent elevated exhaust emissions.

A measurement machine validates accuracy by comparing reference part dimensions against nominal values.

A retrofit smart multimeter continuously monitors voltage, current, and resistance to predict malfunctions without manual checking.

A multi-cylinder engine system monitors combustion pressure to detect impending cylinder failures through threshold analysis.

A misfire detection system analyzes crankshaft rotation speed fluctuation patterns to identify abnormal combustion events in multi-cylinder engines.

A misfire detection device compares combustion variables between adjacent cylinders to identify engine faults.

Embedded engine control system calculates seal damage count using combustion heat flux and thermal models.

Exhaust gas oxygen sensors detect cylinder misfires by analyzing paired cylinder exhaust flows before mixing with other cylinders.

Harmonic power analysis of crankshaft speed signals estimates actual fuel injection quantities to correct for injector drifts and production tolerances.

A damage estimation device derives cooling device distortion from inflow air temperature changes and period length to calculate accumulated fatigue.

A ceramic molded body with a through-hole filled with metallic paste creates a permanent gas-tight electrical feedthrough.

A tapered pipe with a flange mates with a threaded nut assembly to form a secure seal in exhaust systems.

Pre-installed sealing mechanism prevents air leakage through wastegate pivot spindle, ensuring accurate measurement precision without supplier pre-testing.

Rotation waveform variables combined with air-fuel ratio data identify rich and lean deviations, reducing computational load.

Covering portions shield exposed lead ends in thermal flow meters, preventing water intrusion that erodes circuit packages and degrades measurement accuracy.

Virtual data generation interpolates engine rotation speeds to smooth image transitions and reduce computational load.

Modulating the fuel tank isolation valve to detect degradation via pressure pulsations, ensuring accurate leak detection before emission testing.

Acoustic sensors capture engine vibrations and pressure pulses to predict component failure, bypassing unreliable electronic control module data.

A particulate matter detection filter uses an outlet passage with a cross-sectional area equal to or larger than the inlet.

Statistical algorithms determine relative spacing between speed sensors to identify actual configurations for precise engine calibration.

Deep learning extracts high-correlation features from CAN and vibration data, resolving low diagnostic accuracy in incomplete combustion detection.

Analyzing pressure signals determines the fuel flow cutout delay, resolving data loss caused by variable injector timing.

A hybrid powertrain control unit adjusts internal combustion engine and electric motor torque distribution based on real-time operating conditions.

A controller monitors engine operational status to predict maintenance needs.

A control device detects cylinder knocking via acoustic vibrations to adjust ignition timing profiles for each piston-cylinder unit.

A sampling bowl and ring route exhaust gas to a protected sensor, isolating the measurement device from direct flow exposure.

Engine control system monitors exhaust air flow rate during unfueled cranking to detect cylinder valve actuation mechanism degradation.

A torque estimating unit calculates output torque using crankshaft angular acceleration and damper elastic force data.

An electrostatic Particulate Matter sensor detects exhaust moisture to trigger NOx heater activation.

A control system detects exhaust gas sensor degradation by analyzing the shape of generalized extreme value distributions from lambda differentials.

Segmented pump cells isolate gas measurement pathways to prevent error accumulation from combined detection currents in vehicle exhaust analysis.

A gas sensor spacer with high rigidity prevents the ceramic housing from biting into the elastic body.

Removing the wireless transmitter from an internal engine component data collector reduces power consumption while maintaining reliable local data storage.

A vehicle learning system uses on-board and off-board devices to collaboratively evaluate neural network output accuracy.

A misfire detection apparatus analyzes rotational speed changes between cylinders to identify combustion anomalies in internal combustion engines.

A knock determination apparatus separates noise and knock components using integrated intensity across specific frequency bands.

Control device detects exhaust manifold pressure to create normalized sample value patterns for combustion analysis.

Correlating upstream and downstream exhaust oxygen sensor outputs with pressure drop across a particulate filter to infer leakage conditions.

An accelerometer measures peak-to-peak acceleration to detect radiator fan bearing wear and enable proactive maintenance adjustments.

A failure detection device determines PCV valve sticking using intake pressure changes and airflow measurements during deceleration fuel cutoff.

A synchronous dynamometer assembly applies non-inductive loads to an engine crankshaft for precise rotational control.

A misfire determination device calculates average torque correlation amounts from crankshaft angular position signals to detect engine faults.

A control module analyzes crankshaft acceleration and jerk signals to categorize engine disturbances.

Control apparatus analyzes first-order and n-th-order frequency components to distinguish actual disturbances from unstable combustion fluctuations.

A crankshaft angle detection device uses gain and phase correctors to calibrate sensor signals.

Selective heater control synchronizes temperature stabilization with operation to minimize energy consumption and gas usage during startup.

Integrates relative humidity and temperature sensors into a single protruding module within an air flow rate measuring device casing.

A pressurized gas pump introduces air into an exhaust pipe via a sealing adaptor to verify system integrity.

A controller manages exhaust gas flow to collection bags based on engine operation state.

A one-dimensional catalyst model groups exhaust species to predict emissions during cold start.