Electrical Control TRIZ Cases

Monitored operating parameters and calibration maps estimate turbocharger efficiency loss early, enabling fouling alerts before engine damage.

Catalytic oxidation of leaked hydrogen after the EGR cooler generates heat that prevents icing in the recirculation line and intake system.

Compression-stroke gas temperature and EGR ratio are used each cycle to correct ignition timing, suppress knocking, and reduce fuel consumption.

A downstream EGR catalyst oxidizes leaked hydrogen after cooling to generate heat and prevent ice blockage in cold operation.

By removing the compression stroke, this engine uses timed fuel and oxidant injection to raise expansion ratio while lowering heat, noise, and vibration.

Pressure monitoring in the blow-by line detects small CCV leaks with one sensor, improving diagnostic accuracy without added complexity.

Tracks pressure relief valve openings across engine shutdown and controller reset using rail pressure and speed signals to flag PRV service.

A switching valve routes warmer or cooler intake air to the crankcase to prevent condensation while maintaining blow-by ventilation.

Infrared sensing tracks non-hydrocarbon impurities in biogas so engine settings or user alerts can prevent inefficient running and damage.

Excluding fuel cutoff periods from fuel pressure drop evaluation helps prevent false stuck-open judgments in engine shut-off valves.

Fuel pressure monitoring detects a stuck-open shut-off valve while allowing rapid engine shutdown under high speed or high rotation conditions.

A controller detects compromised cylinders and switches operating modes to cut emissions while preserving engine power and fuel efficiency.

Retarded ignition and richer transient mixtures raise exhaust enthalpy, speeding turbo response while keeping lean hydrogen NOx low.

Keeping exhaust valves open during initial crankshaft rotations preheats diesel combustion chambers for more reliable cold starts and lower fuel ejection.

Fluid samples from exposed vehicle zones are routed to protected central gas sensors, enabling reliable detection of oil burn, overheating, and exhaust leaks.

Zone-based exhaust temperature forecasting uses downpipe and component profiles to improve aftertreatment prediction accuracy with lower processing load.

A separate controller adjusts exciter charge rate and spark timing from feedback signals to cut wear, save energy, and detect faults.

Gradual cylinder-by-cylinder air excess rate switching cuts torque shock during λ1-to-λ2 transitions while avoiding NOx peaks.

A dual-path gaseous fuel supply uses compressor charging and buffer tank discharge to meet sudden injection pressure demands faster.

A valve-controlled bypass exhaust path relieves two-stroke turbo back pressure while preserving spool-up and reducing turbo lag.

Pressure data from an integrated injector sensor corrects wear-sensitive injection rate models for more accurate fuel quantity estimation.

Real-time heating value measurement adjusts mixed gas flows to keep combustion stable, cut emissions, and improve fuel flexibility.

Selectable idle-stop timing lets occupants keep or stop engine operation after inactivity, balancing theft and CO risk with cabin comfort.

Electrified air control combines an e-turbocharger and EGR cooling to improve SI engine response, efficiency, and knock resistance.

Pressure-signal filtering and combustion index calculation enable fast, reliable burner misfire detection in exhaust gas after-treatment.

Predicting auto-ignition delay and combustion completion lets the controller adjust intake and injection conditions before knocking occurs.

Direct crankcase pressure and engine speed feedback let the ECU adjust fuel, ignition, and exhaust timing for better two-stroke efficiency and emissions.

Torque deviation and predicted blow-by are used to estimate mixture richness and correct hydrogen engine fuel injection without an air-fuel sensor.

Air scavenging in a dual-mode prechamber stabilizes ammonia ignition while lowering NOx in rich-burn engine combustion.

Big-data AI evaluates injection pressure and quantity patterns to identify injector failure modes quickly and trigger compensatory engine actions.

Exhaust temperature feedback adjusts air-fuel ratio and ignition timing in hydrogen-mixed engines to cut NOx without costly sensors.

Intermittent flushing gas injection cools a direct fuel injector and limits deposits without adding complex active cooling hardware.

Intrusive SCR diagnostics vary catalyst performance during driving to correct NOx sensor errors, cutting DEF waste and ammonia slip.

Dual purge lines and a differential pressure valve improve fuel vapor filter flushing in turbo engines across pressure and altitude changes.

Exhaust-temperature feedback adjusts air-fuel ratio and ignition to cut NOx in hydrogen-mixed engines without costly hydrogen sensors.

Accumulating vibration sensor output before ignition improves pre-ignition detection in hydrogen engines where peak-based methods miss low-vibration events.

An auxiliary air and heat source boosts turbine airflow enthalpy during cold starts and load changes to improve engine response and catalyst temperature.

When EPS diagnosis or communication fails, steering assist is adjusted from available signals so idle-stop can continue and emissions do not worsen.

Sensor thresholds and engine output sweeps diagnose exhaust aftertreatment faults during vehicle operation, enabling timely maintenance and lower emissions.