Electrical Control TRIZ Cases

A control section estimates exhaust gas temperature using engine operating parameters to protect the catalyst.

A control unit executes a second switch-off process by injecting remaining fuel to lower accumulator tank pressure after engine stop.

A fuel injection control system corrects partial lift pulses using voltage inflection time derived from dual low-pass filtered terminal voltages.

Direct combustion chamber injection of hydrogen-containing gases reduces NOx emissions without increasing heat rejection or requiring complex EGR hardware.

A crankcase vent tube pressure sensor detects transient dips during cranking to identify system breaches.

A thermal sensor measures hydrocarbon content and mass flow in engine intake gas streams to enable precise fuel injection control.

Controller prevents filter melting during rapid deceleration by omitting post-injections to limit catalyst temperature.

A NOx reduction catalyst system manages fuel injection to restore sulfur poisoning capacity through controlled exhaust temperature increases.

Elongated springs suspend amplifiers outside the engine resonance region, preventing faults and extending device lifespan without complex structures.

Current sensing with a resistive bias network detects short and open circuit faults, preventing engine failure from undetected critical failures.

A turbocharger EGR control valve uses a sealing flap to direct exhaust gas flow between turbine and compressor connections.

A vehicle control circuit remaps actuator response maps based on driver performance data to improve fuel economy.

Extending the pressure reduction valve opening duration across engine segments resolves limited control performance and energy transfer losses.

An oxygen sensor tracks exhaust gas depletion rates to shut down engines in enclosed spaces, avoiding costly carbon monoxide sensors.

A variable fuel injection ratio adjusts main and sub injection quantities to optimize reducing agent supply during exhaust purification.

A V-type engine control system limits set torque during start-up to ensure rapid rail pressure buildup before enabling fuel injection.

Switching drive current between standard and high-voltage batteries reduces booster circuit heat generation and charging time constraints.

A control apparatus monitors high-pressure fuel delivery pipes to identify system errors using dynamic sensor data.

A solenoid control system measures electrical impedance to determine the optimal command signal level for cylinder valve transitions.

A control system manages exhaust brake devices to apply target braking torque for vehicle speed regulation.

Engine control system distinguishes individual injector faults from common fueling errors using slope analysis.

A control system counts peak-to-peak exhaust lambda differentials below a threshold to detect cylinder air-fuel ratio imbalances.

Oxygen feedback control stabilizes exhaust gas recirculation mixing ratios, eliminating pulsating flow effects that degrade pollutant discharge.

A bypass passage extends from a main intake section, turns back, and overlaps to position an EGR valve closer to the throttle.

A diagnostic process determines true fuel flow rate by measuring engine deceleration and friction torque during a no-fuel spin-down.

A recirculation line routes exhaust gas through a bypass to manage pressure differentials, enabling thermal efficiency gains across varying rotational speeds.

A knocking determination device extracts vibrations at predetermined and broader frequency bands to isolate engine knock signals from background noise.

A lambda oxygen sensor preheating control method adjusts pulse voltage duty ratios to maintain stable heater operation.

A current control module determines a duty cycle based on desired solenoid current and resistance to actuate engine bypass valves.

A feedback control system stops integration during output off periods to maintain target current following.

A fuel pump assembly uses a magnetic valve drive and status sensor to adjust supply pressure dynamically.

Multi-stage fuel injection generates turbulence to extend the plug discharging channel, resolving combustion stability issues during compression.

A motorcycle controller adjusts intake air and ignition timing to manage engine power during deceleration shifts.

A fugitive gas pipe directs combustible gases to an engine air intake using negative pressure created by the running engine.

A combustion control module adjusts boost pressure and fuel injection during engine warm-up.

Automated snorkel deployment switches air induction pathways to prevent water ingestion while preserving vehicle aesthetics.

A calculation system determines EGR valve deterioration using pressure change amounts and differential pressure data.

Exhaust gas sensors measure cylinder-specific combustion values to adjust control variables, compensating for injection nozzle wear and characteristic changes.

Adapting the filtering time constant based on target volume flow derivatives prevents impermissible pressure spikes during sudden load rejection events.

A fuel separator divides streams by volatility to adjust auto-ignition characteristics based on engine operating conditions.

A nitrogen oxide trap system monitors storage capacity to dynamically adjust regeneration cycles based on real-time fuel sulfur content.

Segmented PFI and DI injection strategies minimize direct injection particulates while maintaining fuel efficiency.

A three-way valve routes pressure to a single sensor, eliminating multiple sensors and complex harnessing.

An ion sensing system measures in-cylinder fuel air ratio to adjust evaporative emissions valves and injectors during engine cold start.

Controller measures pressure at the negative pressure formation device to detect stuck valve failures in dual purge systems.

A dual fuel tank system flushes the fuel rail with higher Reid vapor pressure fuel before engine start to ensure reliable vaporization.

A tractor engine control system adjusts RPM settings to optimize fuel usage during header operation.

Separate exhaust and intake passages prevent supercharging drops during reduced-cylinder operation, maintaining combustion quality and fuel efficiency.

A CO clean-up catalyst purifies exhaust gas at rich air/fuel ratios using optimized platinum and ceria compositions.

A fuel injection control device calculates command conduction time for partial lift injection based on requested quantity.