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.

A lean intake mixture above lambda 3 plus direct cylinder fueling cuts backfire and misfire risk while enabling smaller engine injectors.

Load-based switching between premixed spark ignition and compression ignition helps hydrogen engines limit pre-ignition, heat transfer, and NOx.

Adapting injector timing and ignition to 20-700 bar tank pressure avoids pumps and regulators while sustaining hydrogen engine efficiency.

A bulk-and-booster CNG supply switches compressor use by pressure threshold to maintain engine fuel pressure with lower parasitic losses.

Raises engine idle RPM only when electrical load increases, giving stationary vehicles stable generator power without idle fluctuation.

Electric turbo assist raises intake pressure during Miller cycle transients, improving engine response while cutting emissions.

A rotatable valve plate with electric and manual locking cuts diesel intake air quickly while easing installation and safer maintenance.

Pressure-wave sensing in a discontinuous fuel system identifies fuel quality shifts in real time to predict emissions changes and adjust engine service intervals.

Accumulated O2-based lean-state timing and periodic resets filter transient air-fuel fluctuations, reducing false fuel-shortage determinations.

A pozzolanic geopolymer suspension replaces toxic flame retardants, delivering fireproof material through alkaline activation and curing.

Sensor-based control compares exhaust and aftertreatment characteristics, then adjusts fuel or air handling to maintain emissions compliance.

Engine idling control system manages RPM transitions between starting and automatic idle modes for construction machinery.

A hybrid drive control method adapts operating points to execute special functions while minimizing energy usage.

Pressure sensors measure hydraulic line signals while frequency analysis eliminates reflection errors to calculate accurate injection quantities.

Varying fuel injection per cylinder creates rich and lean mixtures to heat the catalytic converter.

Segmented calibration using parameter changes balances power delivery and fuel efficiency against strict emission standards.

Integrates a pressure sensor and check valve into the venturi vacuum generator to detect hose detachment, preventing purge vapor release.

Controller reduces urea deposition in SCR devices by adjusting addition amounts and limiting lean-burn operation to maintain exhaust temperature.

A fuel description module calculates total energy content using intake and exhaust manifold temperature sensors.

A liquid coolant injector uses a thermally insulating housing to maintain the refrigerated fluid in its liquid phase during injection.

Dynamic oxygen level adjustment prevents runaway combustion while reducing regeneration duration.

An exhaust gas recirculation control unit prevents valve overshoot during transient operation by selecting closed-side commands, reducing smoke generation.

A sensor apparatus shifts target air-fuel ratios to non-stoichiometric values to enhance detection responsivity.

Dynamic threshold comparison prevents overcorrection during fuel injection resumption while maintaining target air-fuel ratio convergence.

A fuel injection control device adjusts timing in the compression stroke to enhance combustion efficiency.

Logarithmic estimation of exhaust gas temperature from intake temperature and fuel quantity resolves fouling and response time trade-offs.

Corrects purge fuel amount using ambient temperature and hydrocarbon concentration weighting factors.

A control unit calibrates an oxygen concentration sensor using exhaust flow volume and output stabilization thresholds.

Two electrodes measure conductivity in the combustion chamber to identify liquid contaminants.

A control device manages condensed water in hydrogen engine intake passages by adjusting collection valve states based on real-time load conditions.

Variable belt drives transfer stored flywheel energy to a supercharger, reducing the need for oversized engines and complex exhaust aftertreatment systems.

Diagnosis module evaluates signal phase against a reference phase to identify delays exceeding a threshold, resolving false diagnoses from diaphragm stretching.

Adjusting exhaust gas recirculation based on selective catalytic reduction efficiency resolves the trade-off between tailpipe emissions and fuel consumption.

A vehicle controller stops crankshaft rotation after firing to eliminate noise and vibration during filter regeneration.

A variable displacement engine control system segments cylinder groups to isolate knock signals from combustion noise.

Monitoring fuel-linked engine parameter variability detects excess fuel intake before mechanical damage occurs.

An engine control device opens an air bypass valve to pre-rotate a turbocharger compressor before closing a waste gate valve.

A control device detects spontaneous ignition by comparing cylinder running irregularity values against a threshold.

A vehicle control system restricts motion during fuel refills to motivate reductant replenishment.

A torque control module increases spark advance after fuel delivery halts to a cylinder, offsetting the resulting torque reduction.

A fuel injection control device adjusts voltage cutoff timing to the electromagnetic coil based on valve closing time.

A diagnosis apparatus calculates the NOx storage rate to detect catalyst abnormalities using inflow and outflow quantities.

A fuel injector control method adjusts injection duration based on calculated coking factors derived from engine speed and torque ranges.

A bypass duct and recirculation pipe route exhaust gases around a diesel particulate filter during regeneration.

A central control unit selectively deactivates engine cylinders based on throttle valve openings to reduce fuel consumption.

A boost controller manages regenerative current flow in fuel injection valve circuits to maintain stable voltage levels.

An adaptive model predicts pumped fuel mass using pressure and temperature data.

A fuel supply pressure controller dynamically adjusts reference pressure using temperature and altitude data to maintain optimal low pressure fuel pump operation.

A running control device manages engine operation states during vehicle coasting to optimize fuel efficiency.

A neuronal correction encoder generates precise air-fuel mixture composition adjustments using additional vehicle operating parameters.

An integrally cast throttle housing merges the anti-rotation feature with the adapter to eliminate separate machining steps.

Compression stroke fuel injection raises in-cylinder temperature, enabling large ignition timing retard without combustion instability during cold start.

An integrated lean NOx trap and diesel particulate filter catalyst reduces trapped nitrogen oxides to ammonia while oxidizing accumulated soot.

External heating elements raise combustion chamber temperatures to ensure reliable ignition of low cetane fuels regardless of chemical properties.

Electronic control unit limits engine speed by adjusting fuel and ignition based on throttle valve position.

A turbocharger controller adjusts supercharging pressure and ignition timing to suppress pre-ignition in the combustion chamber.

A vehicle control system detects user presence and idle states to manage automatic engine shutdown sequences.

Delayed compression-phase injection minimizes raw particulate emissions by ensuring complete fuel evaporation before ignition.

An engine control device integrates mode switching with a kick-down instruction to activate power mode directly from the operation lever.

An engine controller moderates torque change ratios during acceleration and deceleration to stabilize the drivetrain.