Electrical Control TRIZ Cases

Electronic control unit manipulates exhaust gas recirculation and back pressure to diagnose NOx sensors in situ.

A semiconductor device holds the first occurring peak value in a storage register using an end timing determination circuit.

Electronic control unit manages fuel injection rates by reducing pressure in the control chamber of fuel injection valves.

A control device limits gear stage updates after clutch engagement to maintain NV ratio calculation reliability.

Adjusting exhaust valve timing generates pressure waves that dislodge soot from stuck gaspath actuators, eliminating manual servicing.

An electronic control throttle device calculates engine rotational acceleration to adjust integral torque for precise speed regulation.

Repurposes a vehicle forced induction system to supply compressed air for tire inflation via electrical power, eliminating dedicated pumps and reducing weight.

An adaptive model-based control system updates constraints and horizons to maintain engine operability under fault conditions.

Reverse supercharger rotation creates intake manifold vacuum to reduce engine torque and speed flare, avoiding fuel economy penalties from spark timing retard.

A fuel pump control system infers pressure using motor phase current measurements to enable closed-loop regulation without dedicated sensors.

A delta pressure sensor across the fuel tank isolation valve measures differential pressure to monitor system integrity.

A speed position sensor diagnostic method detects output short circuits and tests for excess current consumption to identify the specific fault location.

Differential fuel control compensates for EGR valve latency, preventing intake oxygen undershoots during transient engine operation.

A processor calculates volume ratios between dual fuel injection systems to maintain uniform ethanol concentration across both lines.

Parallel solenoid valves enable rapid gaseous fuel substitution rate adjustments, overcoming slow analog control loop response times.

A control unit varies hydraulic pump power to maintain engine speed within optimal ranges.

A driving source torque controller manages power transmission to mitigate mechanical shock in vehicle drivetrains.

A vehicle control system schedules NOx adsorber purging based on predicted driving cycle end and trap efficiency.

Dynamic fuel delivery control maintains crankcase gas concentration below flammability limits, preventing ignition risks from hydrogen blowby.

Controller calculates pressure differences across crankcase ventilation tubing to identify holes or cracks, enabling rapid emission regulation compliance.

Visual feedback displays selected control patterns to prevent operator confusion during automatic switching between continuous and forced regeneration modes.

An engine speed module uses a target firing fraction to filter crankshaft position signals, minimizing speed variation during cylinder deactivation.

Dual pulses subtract reference noise from measuring signals, enhancing signal-to-noise ratio and extending sensor lifespan.

A diagnosis device removes combustion deposits from an in-cylinder pressure sensor using controlled knocking to restore output accuracy.

A diagnostic method calculates a median of multiple fresh air flow values to detect sensor drift in internal combustion engines.

A multi-cylinder piston engine switches fuel types per cylinder based on real-time combustion monitoring to maintain optimal power output.

A method estimates engine oil dilution by combining fuel concentration with carbon chain fractionation rates.

Dual broadband lambda sensors enable plausibility checks for accurate NOx adsorption catalyst regeneration control.

Stopping fuel to one cylinder and supplying others raises catalyst temperature, maintaining drivability during load operations.

A control system manages engine speed by tracking air filter clogging status to maintain operational parameters.

A dynamic wastegate control strategy adjusts valve position to manage induction pressure and reduce condensate formation in charge air coolers.

A diagnostic routine commands an EGR valve to predetermined positions while routing compressed air through the passage during key-off conditions.

Dynamic engine controller adjustments balance fuel efficiency against nitrogen oxide emissions to meet strict environmental standards.

An exhaust valve driving mechanism advances fuel injection start timing in uniflow scavenging two-stroke engines.

Alternating substoichiometric and superstoichiometric air-fuel ratios via lambda feedback minimizes raw emissions during rapid catalyst light-off.

A fuel injection control device selects between electromotive force quantity and timing detection modes for valve closing.

High-speed pulsers generate non-thermal plasma to stabilize lean-burn combustion, resolving slow flame propagation issues at low engine loads.

Engine design eliminates hydrogen promoters by controlling intercooler temperature and lambda to achieve reliable ammonia combustion.

A twin scroll turbocharger uses a pressurized air container to accelerate turbine wheel rotation, reducing turbo lag at low RPMs.

A work vehicle control section stores speed data from a gear shift pedal to enable adjustable auto-cruise mode.

A controller monitors soot adsorption in an exhaust aftertreatment system to initiate targeted cleaning events.

A fuel reformation cylinder control device adjusts reaction gas temperature to maintain efficient reforming.

A dual supercharging engine control system switches between turbocharger and combined modes to optimize power delivery across varying load conditions.

A controller adjusts dwell time between pilot and main fuel injections based on ambient conditions.

A glow plug creates a localized heated region within the combustion chamber to ignite fuel directly.

Non-thermal plasma from a corona ignition system initiates auto-ignition, enabling precise timing control and reducing NOx emissions in compression engines.

A fuel injection control system detects high pressure pump discharge failures by increasing low pressure pump discharge pressure.

Dynamic output control manages drive source limits during clutch slip to prevent excessive rotational speed decrease and ensure smooth vehicle starting.

Control unit limits engine speed when upshift conditions fail, reducing fuel consumption caused by inefficient high-speed operation.