Electrical Control TRIZ Cases

Scavenging fuel injection raises exhaust temperature to burn trapped soot, avoiding complex additional injector hardware.

NOx sensors detect ammonia desorption to monitor hydrocarbon trap degradation, resolving sensor warm-up timing conflicts.

A hydraulic excavator control unit increases maximum engine speed based on revolving lever operation amount to maintain sufficient torque.

Segmented exhaust legs with nested SCR and PM filters resolve adaptability versus complexity trade-offs in locomotive emission control.

A control system adjusts dual fuel engine speed to maintain a predetermined air-fuel ratio.

Peak current saturation minimizes anchor impact noise while maintaining reliable valve closure.

Electronic control unit adjusts energization time to maintain accurate fuel injection quantity.

Engine control system calculates speed differences to generate precise torque requests, minimizing engine fluctuations and clutch energy input.

Oxygen sensor feedback corrects ammonia storage estimates in a gasoline SCR, preventing slip while maintaining NOx conversion efficiency.

Segmented computation devices calculate fuel quantities at 240-degree intervals to reduce interruptions and lower processing load in three cylinder engines.

Rolling split lambda fueling avoids resonant frequencies to reduce NVH while maintaining stoichiometric conditions at the emission control device.

A diagnostic method monitors fuel accumulator pressure and actual delivery volume to detect unintended fuelling events in multi-cylinder engines.

A fuel pump diagnostic apparatus correlates rotational speed and pressure to detect anomalies.

Alternating standard and rebreathing cycles increases exhaust gas temperature without adding hardware complexity or NVH penalties.

Upstream electric supercharger maintains inlet pressure to prevent downstream turbocharger surge, eliminating the need for a mechanical recirculation valve.

A drive control apparatus calculates a protection exhaust gas recirculation rate to manage thermal loads in internal combustion engines.

A carbonaceous soot trap uses exhaust temperature to estimate soot load when the differential pressure sensor degrades.

An electronic compressor bypass valve module integrates a venturi device within its housing to generate vacuum pressure.

A monitoring circuit detects driver actions to pre-activate the camshaft adjustment control device before ignition switch engagement.

A fuel injection controller uses specific throttle openings to calculate correction amounts for precise fuel delivery.

A modular ejector purges fuel vapors from the canister into the engine intake passage using pressure differentials.

A fuel injector modulates injection opening size without fully closing the valve to deliver discrete fuel pulses.

A valve control system determines high-pressure recirculation amounts by subtracting low-pressure flow from total intake gas to enable accurate failure diagnosis.

A processor calculates common rail pressure change rates to estimate effective steady state flow rate for fuel injectors.

Synchronizing the camshaft with the crankshaft doubles angular velocity, reducing irreversible pressure losses and improving energy recovery.

Retarding ignition timing suppresses engine speed overshoot above the centrifugal clutch threshold, preventing stall.

ECU adjusts ignition timing proactively to prevent cam undershoot and engine RPM drops during valve timing transitions.

A control apparatus manages fuel injection parameters to stop and restart fuel delivery during engine upshifts.

Downstream NOx sensor detection timing resolves lean-richer transition delays, suppressing emission deterioration regardless of exhaust flow rates.

Control method reduces turbo lag by adjusting wastegate and blow-off valves while deactivating cylinders to optimize air flow.

A purge pump manages evaporation gas flow to sustain brake booster vacuum levels.

Segmenting cylinder groups by exhaust pipe shape prevents false anomaly detection during fuel cutoff, ensuring accurate catalyst oxygen supply.

Segmenting cylinders into groups with distinct valve overlap resolves air flow balance issues caused by differential exhaust backpressure.

A PWM duty cycle correction method adjusts superimposed signal amplitudes to maintain mean-value neutrality during valve operation.

Vary exhaust gas volume flow to detect nitrogen dioxide formation at oxidation catalytic converters.