Electrical Control TRIZ Cases
- Hydrogen Engine Controller for Embrittlement Prevention
A hydrogen engine controller adjusts ignition timing to manage in-cylinder pressure.
- Skip Fire Engine Controller Firing Fraction Management
Dynamic firing fraction control minimizes low-frequency vibrations and acoustic noise while maintaining fuel efficiency in skip fire engines.
- LPG Injection Control for Diesel Engine Efficiency
Dynamic LPG injection control maintains 0.2% to 0.6% concentration in diesel engines, resolving efficiency losses from fixed-rate delivery.
- Direct Injection Fuel Pump Control via Dual Mapping
A fuel pump control module uses dual mapping to drive an electronically controlled lift pump for immediate pressure generation.
- Hydrocarbon Concentration Calculation in Vehicle Purge Pump
A controller filters rapid density changes to calculate hydrocarbon concentration accurately despite insufficient intake negative pressure.
- Engine Air-Fuel Ratio Control for Catalyst Oxygen Storage
A control device adjusts target air-fuel ratio switching to maintain exhaust purification catalyst oxygen storage.
- Magnetic Actuator Armature Stroke Determination
Determines magnetic actuator armature stroke by comparing energy states from selected hysteresis curve segments.
- Exhaust Gas Recirculation for Aftertreatment Temperature Management
A gas recirculation passageway and valve system moves exhaust gas back to the engine intake upstream of the aftertreatment system.
- Fuel Supply Unit Control Module for Carburetor Idle Speed
A fuel supply control module integrates a throttle position sensor and solenoid valve to manage air-fuel mixture delivery.
- Fuel Injection Control Device for Engine Cylinder Correction
A fuel injection control device divides inter-cylinder correction amounts to stabilize main and sub-injections across engine cylinders.
- Fuel Injection Control Device Voltage Stability
A fuel injection control device manages boosted voltage through a dedicated boosting operation control unit.
- Intake Throttle Valve Turbocharger Speed Control
Electronic control module adjusts intake throttle valve position to regulate turbocharger rotational speed.
- Engine Control Apparatus for Accurate Catalyst Diagnosis
A control apparatus adjusts determination values based on wastegate valve opening to maintain accurate air-fuel ratio fluctuation control.
- Continuous Injection Detection via Pressure Drop Analysis
A control unit monitors high pressure in an injection system to detect continuous injection events using time-based pressure drop analysis.
- Asymmetrical Lambda Split for Three-Cylinder CNG Engine Catalyst Light-Off
Three-cylinder CNG engine uses asymmetrical lambda split to heat catalyst via exothermic reactions.
- Engine Torque Build-Up Control via Adaptive Rate Limiting
Adaptive torque build-up control reduces powertrain jerking by dynamically adjusting force application rates to match engine load and speed.
- Onboard Fuel Octane Cetane Separation via Adsorbent Circulation
Adsorbent circulation selectively separates onboard fuel to enrich octane or cetane levels, reducing infrastructure complexity and refueling errors.
- Cylinder-Specific Fueling Error Compensation for Engine Restart
Engine control system correlates crankshaft speed fluctuations with individual cylinder fueling errors to compensate air-to-fuel ratio deviations.
- Ethanol Sensor Diagnosis in Flexible Fuel Vehicles
Calculates ethanol content ranges via air-fuel ratio maps to prevent engine damage from inaccurate sensor readings.
- Cylinder Direct Injection Engine Dual Fuel Combustion Control
A cylinder direct injection engine injects low-octane fuel to form an ignition flame before introducing high-octane fuel for combustion.
- Exhaust Purification System SOx Purge Control
A switching mechanism adjusts intake air calculations during mode transitions to prevent prolonged SOx purge times and excessive temperature rise.
- Catalyst Oxygen Storage Calculation with Sensor Delay Correction
A catalyst control system calculates maximum oxygen storage capacity using temperature gradients and learned linear expressions.
- Driving Source Control via Phase-Lead Torsional Fluctuation Detection
A driving source control apparatus computes torsional fluctuations using a phase-lead process to apply opposing correction torque.
- Fuel Tank Pressure Sensor Anomaly Detection via Purge Line Intermediary
A fuel tank pressure sensor checks accuracy by comparing readings against a purge line reference value derived from temporal extremes.
- GDI Injector Coil Current Monitoring for Combustion Seal Leak Detection
Controller analyzes injector coil current rise time and saturation resistance to identify combustion seal leaks, preventing heat damage to engine components.
- Engine Stop Control for Catalyst Oxygen Management
A control device monitors oxygen concentration in a catalyst to determine whether to prohibit engine stoppage.
- Diesel Fuel Injection Timing and Pressure Control
Dynamic adjustment of injection pressure and timing compensates for varying fuel cetane numbers, stabilizing combustion heat release and reducing emissions.
- Torque Control System for Acceleration Transitions
A torque control system applies rate limits to acceleration requests during coasting transitions.
- Fuel Injection Control Device Cold Startup Correction
A fuel injection control device calculates increase correction values for port and direct injection modes based on coolant temperature.
- Air Per Cylinder Prediction for Engine Fuel Control
An air per cylinder prediction module estimates trapped gas volume based on recent valve sequences, enabling precise fuel injection and reducing consumption.
- Engine Charge Cycle Diagnosis Using Torque Dropout Windows
Diagnostic tool detects rotational speed patterns during specific time windows to identify engine faults.
- Torque Gradient Decrement Calibration for Jerk-Free Deceleration
Decoupling torque gradient decrement calibration from transition time prevents deceleration jolts while optimizing fuel efficiency.
- Exhaust Purification Catalyst Dynamic Air-Fuel Control
A hydrocarbon feed valve injects partially oxidized fuel into an exhaust purification catalyst to adjust the air-fuel ratio for NOx reduction.
- Fatigue Monitoring Using Pseudo Cycles in Fixed Buffers
A monitoring method extracts local extrema from data streams and stores cycle information in a fixed-size buffer to track component operation.
- Dual Outlet Fuel Injector for Targeting Errors
Segmented nozzle outlets with dynamic pressure control limit targeting errors during engine cycle transitions.
- Engine Intake Throttle Control via Differential Pressure Generation
An electronically controlled throttle regulates intake airflow by adjusting valve openings based on differential pressure signals.
- Valve Timing Controller Phase Correction for Engine Startability
Correction control displaces the relative rotation phase toward a stop phase after engine shutdown, reducing starter load and improving startability.
- Solenoid Valve Event Detection Using Chopped Waveform Current Sampling
A solenoid valve detection method samples current at local maxima and minima within chopped voltage waveforms to identify operational states.
- Construction Machine Fuel and Urea Water Supply Port Arrangement
A hollow accommodating case on a revolving frame houses a fuel supply pump and urea water tank with juxtaposed supply ports.
- Engine Controller Ignition Timing Feedback for Smooth Deceleration
A controller adjusts ignition timing via feedback control to stabilize engine rotation numbers during operation.
- NOx Emission Model Correction via Adaptation Filter
An adaptation filter corrects a NOx emission model using sensor feedback, compensating for slow sensor response times during transient operations.
- Catalyst Warm-Up via High Idle Speed and Brake-Linked Drive Line Control
Postponing drive line enablement until brake release sustains high engine speed, raising catalyst temperature rapidly to reduce cold start emissions.
- Canister Purge Valve Fault Isolation and Flow Correction
A control method isolates canister purge valve faults using sequential learning phases to determine corrective factors for air and fuel flow adjustments.
- Gaseous Fuel Manifold Air-Tightness Evaluation
Pressurizing the gaseous fuel manifold with purge gas evaluates air-tightness, preventing cylinder overfilling from leaking admission valves.
- Adapting Air-Fuel Ratio for Catalyst Deterioration
Controller adjusts air-fuel ratio command based on catalyst deterioration factor to maintain emissions compliance.
- Individual Cylinder Air-Fuel Ratio Monitoring Enablement
A controller segments engine cylinders into subsets to monitor air-fuel ratios individually using a shared sensor.
- Wireless ECU Configuration Update via Remote Write Package
A wireless system transmits a validated write package to an electronic control unit for parameter modification.
- Gas Engine EGR Mass Flow Determination Using Temperature Sensors
Temperature sensors in the intake tract and exhaust gas recirculation line determine air and exhaust gas mass flows.
- Exhaust Valve Timing for Catalytic Converter Light-Off
Adjusting exhaust valve opening times accelerates catalytic converter heating during cold starts.