Electrical Control TRIZ Cases

Direct gas injection at sub-compression pressure prevents uncombusted fuel slip during valve overlap.

A processing module simulates square waveforms to determine engine angular position.

A method adjusts internal combustion engine control parameters using dynamic setting parameter combinations derived from steady-state optimization.

An exhaust gas analysis method uses isooctane fuel to isolate particulate matter derived from lubricating oil.

A hysteretic current controller detects valve open time by analyzing solenoid coil current waveforms and PWM duty cycles.

Multi-stage actuator driving force displaces spring members to maintain sealability while suppressing abnormal sound.

A control system adjusts fuel injection and ignition timing to stabilize combustion during engine mode changes.

Dynamic valve overlap promotes combustion gas blow-back to enhance fuel atomization during cold starts.

A skip fire engine control system segments combustion cycles to optimize air and fuel delivery during active firing events.

A controller predicts downstream NOx concentration and compares it against actual sensor readings to assess catalyst health status.

A lean-rich cycling method manages nitrogen oxide storage catalysts to optimize ammonia generation and reduce emissions.

Mechanical vibration removes soot from emission control sensors without thermal damage, preventing clogging and maintaining accuracy.

A dual camshaft engine valve control system uses a motor generator unit to rotate the control camshaft and adjust valve timing phase.

A controller calculates crank chamber pressure to adjust water injection ratios for engine operation.

A diagnostic system compares upstream and downstream exhaust sensor readings to detect reversed installations.

A temperature control apparatus stores inherent characteristic information to specify the relation between detection element temperature and internal resistance.

Coordinated turbocharger, fuel injection, and intake throttle strategies maintain desired exhaust temperatures while limiting fuel dilution levels.

Controller aligns EGR valve axes after engine stop to eliminate leakage gaps caused by thermal deformation and friction.

Discarding noisy pressure samples during ringing improves measurement precision and engine efficiency.

A permanently magnetized fuel injector valve mechanism uses magnetic attraction to stabilize movement, reducing bouncing that causes leakage and tick noise.

A control device determines virtual current values using a prediction model to adjust controlled variables before operating conditions change.

A passive NOx adsorber stores exhaust pollutants during cold starts until the downstream catalyst reaches light-off temperature.

Diesel engine control device corrects intake air amount measurements using exhaust gas recirculation feedback to reduce nitrogen oxide emissions.

Gradual butterfly valve closure consumes residual fuel to prevent unburnt accumulation, eliminating smoke and noise upon restart.

Inert gas flushes residual fuel from the gaseous fuel line into the engine cylinder, preventing atmospheric venting during dual fuel transitions.

Segmented pilot injection eliminates glow plugs, resolving complexity and reliability trade-offs while enhancing combustion efficiency.

Diesel injectors actuate post-injections to discharge excess fuel, eliminating high-cost pressure-relief valves.

Adapting filter parameters via engine control data resolves measurement precision issues caused by pressure pulsations and rapid temperature changes.

Cloud navigation predicts low-load durations to execute partial or full GPF regeneration, avoiding engine knock and maintaining power output.

A control method estimates compression pressure in an internal combustion engine cylinder to manage gas flow during the compression phase.

Decouples fuel mass correction from boost pressure limitation using delay elements, preventing oscillating target torque during shifting under load.

Deactivating the pump discharge stroke isolates the injection-induced pressure drop for accurate fuel quantity calculation.

An engine control apparatus determines driver readiness to start using elapsed time and gear position signals.

A control system determines injection quantity using minimum test injections and resultant torque measurements.

Continuous mass estimation of unburned hydrocarbons activates targeted heating, preventing catalyst damage without pre-catalysts.

A restart controller manages engine stop and start cycles for automatic transmission vehicles.

Continuous methane sensing replaces manual sampling to resolve measurement precision and adaptability contradictions.