Electrical Control TRIZ Cases

A rigid vented front wall shields the exhaust gas sensor from flying stones while letting traveling wind pass to cut drag and noise.

Sensors, PID control, and fast pressure valves stabilize high-pressure fuel delivery in small engines for cleaner combustion across temperature and altitude changes.

Electronic solenoid pumping and an optimized fuel rail raise injection pressure to 1000 bar while cutting losses, wall wetting, and emissions.

Power rating changes across engine states reveal injector faults without complex direct testing, helping maintain consistent fuel delivery.

Electronic fuel injection and air-fuel ratio sensing replace manual fuel adjustment to improve octane rating accuracy and repeatability.

A controller compares measured and estimated engine load to correct fuel-system drift, enabling precise gas substitution with Tier 4 compliance.

Directed gaseous fuel jets toward the piston bowl improve hydrogen-air mixing before ignition, boosting combustion stability and lowering NOx.

Blending low-proof ethanol with diesel and adjusting flow from NOx feedback cuts diesel engine emissions while preserving efficiency.

Precomputed EGR, throttle, and ignition corrections reduce torque shock during fuel-cut recovery while preserving stable combustion.

A control module holds turbo boost longer before waste-gate release, giving drivers adjustable power while staying within factory limits.

Pre-adjusting EGR from oxygen sensor trends helps neutralize stored catalyst oxygen after fuel cut without stalling the engine.

Misfire counting triggers torque limiting and stoichiometric bank operation to prevent catalyst overheating during engine misfire events.

A rotary exhaust valve closes the exhaust port before intake ends, limiting fuel loss while improving two-stroke charging and combustion.

Condensed EGR water is blended into pilot diesel for hydrogen ICEs, cutting diesel use and emissions while preserving stable ignition.

Condensed EGR water is blended into pilot diesel to stabilize hydrogen ignition at low load while cutting diesel use and emissions.

Filtered exhaust oxygen signals at engine cycle frequencies reveal which cylinder has an air-fuel imbalance, enabling precise fuel correction.

Monitors electrical load failures during DPF regeneration and returns the engine to nominal idle speed to prevent thermal runaway and clogging.

An intake-path model tracks gas-air mixture states and adjusts mixer flow in real time to stabilize transient gas engine operation and cut emissions.

Runtime adaptation of combustion and gas path models cuts engine tuning effort while maintaining reliable control across transient operation.

Adaptive closing-time control cuts small-fuel metering deviation between injectors in ballistic operation with less calibration effort.

A controller offsets aftertreatment clogging by adjusting EGR valve opening to preserve exhaust flow split, limit soot buildup, and extend service life.

A controller switches between vapor and liquid LP gas injection to improve cold starts, high-load efficiency, and pump reliability.

Separating pressure regulation from flow control cuts control volume, enabling faster and more accurate gaseous fuel injection pressure response.

Separating real engine speed deviations from short-lived sensor anomalies, this case combines health checks and torque validation to trigger protection.

Using a DPF heater as a load bank keeps DOC exhaust temperature above the minimum threshold, preventing deposits during low-load operation.

High-pass filtering of crank-based engine acceleration improves misfire detection in PHEVs by suppressing resonance and combustion variation.

Separate methane and hydrogen injectors feed a common channel, letting the ECU vary fuel ratios for cleaner combustion and compact packaging.

Tracks rising carbon monoxide near portable engines and triggers automatic shutdown to prevent poisoning in enclosed spaces.

Repeated ignition in one combustion cycle burns residual hydrogen fuel before exhaust discharge, lowering pressure spikes and exhaust damage risk.

Circumferential dividing and colliding protrusions guide early fuel impact in the piston bowl to improve mixing, combustion quality, and emissions.

Transition-stage detection blocks EGR valve action as the engine crosses the EGR region, preventing knock and unstable combustion.

A sensor near the fuel filter triggers engine auto-start and stop by fuel temperature to prevent cold-weather gelling with less idle time.

Kalman-filtered catalyst temperature estimates overcome delayed outlet sensing, stabilizing DPF regeneration and preventing thermal damage.

When intake air is cold and flow is low, EGR is blocked to prevent moisture condensation in the intake passage and avoid engine misfire.

By deactivating cylinders and adjusting fueling to keep active cylinders near stoichiometric, this case cuts CO, HC, and NOx while preserving combustion stability.

Preheating with a glow plug while moving the fuel rack to its start-up position cuts cold-start cranking time in compression ignition engines.

Predictive intake air and ignition timing control helps prevent engine stall when generator load rises and engine speed drops.

A linear crankshaft signal chain lets identical camshaft control units self-assign after assembly, cutting configuration effort and mix-up risk.

Cylinder deactivation controls exhaust temperature and oxygen during particulate filter regeneration to prevent thermal runaway and cut fuel use.

Adaptive split injection switches patterns from pre- or post-λ correction to limit fuel adhesion and improve combustion efficiency.

Dividing and colliding protrusions split and mix fuel earlier on the piston bowl surface, improving combustion efficiency and emissions.

Pressure signals in the blow-by line reveal small CCV leaks, enabling accurate diagnostics with a single sensor and lower engine emissions.

Blocks EGR at low intake temperature and low airflow to prevent condensation-driven misfire while preserving engine performance.

Preplanned function allocation across engine overrun phases maintains legal compliance despite drift and varying phase duration.

Coupling the pilot and main injectors lets the ignitable fuel also act as working and barrier fluid, simplifying dual-fuel mode switching.

Gradient and delay analysis separates downstream lambda sensor faults from catalyst defects, improving diagnosis accuracy and lambda control.

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

Adjusting hydrogen, CO, and methane in reformed fuel by engine load stabilizes lean combustion, cuts emissions, and preserves power.

Two lambda sensors placed across a compact exhaust treatment device enable reliable failure detection while avoiding extra sensor cost and damage.

Pre-switch self-diagnosis of fuel supply and air-fuel ratio control helps prevent abnormalities when an engine changes from liquid to gas fuel.

A turbine inlet temperature control system adjusts engine torque using a dynamic setpoint that ramps from initiation to maximum hardware limits.

Segmented fuel delivery produces hydrogen and carbon monoxide in dedicated cylinders to enhance combustion speed while reducing NOx emissions.

Engine control unit monitors rotational speed during manual gearbox ratio changes to manage transient progressive torque reduction phases.

A digital internal combustion engine uses segmented combustion chambers to switch between burning and non-burning modes for precise power control.

A variable valve timing control device stabilizes motor manipulated variables through precise rotational phase calibration.

A selective catalytic reduction system adjusts engine operating parameters to minimize reducing agent consumption.

An EGR control apparatus manages inert gas amounts via dual paths to stabilize combustion.

A diesel particulate filter regeneration method sets minimum engine speed and torque thresholds to ensure adequate exhaust gas mass flow and temperature.

A multi-fuel engine uses separate injectors to blend low and high octane fuels based on load conditions.

A controller adjusts intake and exhaust valve lift profiles to manage cylinder deactivation events in internal combustion engines.

Segmenting signal paths via dedicated ports minimizes delay while maintaining measurement precision in vehicle control systems.

Segmented fuel injection controls ignition timing independently of combustion phasing, expanding the operating range and reducing engine noise.

Diesel injection control apparatus adjusts solenoid valve hold time using real-time sensor data.

Engine control unit acquires management programs via communication interface to maintain operation when working machine ECU fails.

Merging detection coils with the magnetic flux part cancels normal operational fields, enabling precise fault identification without adding complex hardware.

Vibration sensor measures engine vibration to control sound generator output, eliminating speaker delay and mismatched noise perception.

Integrating piezoelectric knock sensor into electrical connector mounting bush eliminates complex assembly steps while maintaining detection accuracy.

A diagnostic method analyzes downstream oxygen sensor signals to evaluate three-way catalyst efficiency while maintaining stoichiometric air-fuel mixtures.

Segmented cylinder routing with selective skip firing modulates EGR rates to reduce NOx emissions without sacrificing engine efficiency.

Staged cam phase adjustment coordinates vehicle actuators during skip fire transitions, reducing noise and vibration while maintaining fuel efficiency.

Oxygen-storing catalyst manages stoichiometric exhaust to lower nitrogen oxide levels while oxidation units convert residual ammonia.

An active purge pump module moves vapor from a carbon canister to the engine, eliminating turbocharger air diversion that reduces power.

Controller drives wastegate valve to provisional closed position before verifying actual opening via sensor feedback.

A controller manages crankcase ventilation by coordinating a PCV valve with an ejector to maintain engine torque.

An ammonia supply controller adjusts reducing agent delivery to an SCR catalyst based on detected exhaust parameters.

Segmented outlet openings with distinct orientations manage backward flow from intake pulsation, reducing measurement errors without increasing pressure drop.

Filtering estimated atmospheric pressure from a throttle map prevents unstable intake pressure errors during outboard motor startup.

A controller determines desired fuel mass using intake and exhaust manifold pressures to control engine torque output.

Estimating gas species composition by aligning assumed and perceived lower heating values to control air-fuel ratio without external analytical instruments.

A control system calculates the exhaust gas recirculation ratio using a unified formula based on intake pressure and engine speed.

Multi-input multi-output controllers coordinate throttle and trim valves to stabilize gaseous fuel engines against transient load variations.

A fuel injection control device adjusts the injection period timing to synchronize with the high-pressure pump inflow cycle.

A gas engine control system converts maximum cylinder pressure into a virtual knocking occurrence ratio to adjust ignition timing.

A turbocharger speed fluctuation analysis system diagnoses individual engine cylinder operation using crankshaft position correlation.

An arithmetic unit detects valve-closing time by analyzing voltage variation patterns during fuel injection cycles.

A controller detects EGR valve opening states to diagnose intake manifold pressure conditions for timely urea injection.

Active purge pump pressurizes vaporized gas into the intake pipe for precise cylinder fuel injection compensation.

Diesel exhaust purification system divides injection maps for rapid heating and maintenance phases, shortening forced regeneration time.

An electric actuator adjusts a carburetor metering rod to replace complex electronic injection systems while maintaining precise fuel delivery.

An accumulator stores pressurized fuel from a cryogenic pump, eliminating wastage when engine load drops below minimum pump speed.

Sequential learning prevents control interference between rotation and fuel pressure corrections, ensuring accurate value updates.

Dynamic heating output prevents short circuits by generating vapor pressure to remove water, avoiding premature aging.

A dual common rail system with independent pressure regulating mechanisms for main and pilot fuel injectors.

Segmenting the actuator into a lightweight plunger and closing element resolves switching time versus reliability trade-offs.

An asymmetric inflow reducer generates a vortex to block reverse fluid flow, eliminating measurement errors caused by dynamic pressure reduction at the outlet.

A pivotable exhaust valve controller manages fluid pressure during fuel cut conditions to maintain turbine operation.

Abnormality treating means detects high intake pressure and engine rotational speed to initiate an emergency stop.

A supplemental engine braking system modulates fan speed to provide retarding power during vehicle descents.

A humidity sensor and controller adjust engine parameters to prevent moisture accumulation in the intake manifold.

A model-based controller computes predicted NOx storage levels in a passive absorber to adjust engine operations and raise exhaust gas temperature.