Electrical Control TRIZ Cases

Forced upshift and intake air limiting keep the three-way catalyst within temperature limits while preserving vehicle speed and emissions.

A bypass orifice balances tank and canister pressure during purge, limiting fresh vapor draw while removing hoses and leak points.

Torque is limited after cold start until exhaust aftertreatment warms up, with the threshold adjusted to vehicle driving resistance.

Predictive downhill control preconditions exhaust aftertreatment temperature before an uphill segment, improving NOx reduction without extra fuel use.

Cold-start emission spikes are controlled by warning the driver and temporarily limiting engine power until exhaust aftertreatment reaches compliance.

An electronic Venturi throttle-mixer cuts leak points and replaces mechanical linkages for precise low-pressure gaseous fuel and air control.

Multiple hydrogen tanks and controlled valves match fuel pressure and flow to vehicle power demand, cutting throttling losses and emissions.

Using generator frequency instead of engine speed, this control approach keeps loop gain stable across operating points and reduces tuning effort.

Dual tank arrangements and controlled valves match hydrogen pressure to engine or fuel cell demand, cutting regulation losses and emissions.

Oxygen storage is integrated between air-fuel ratio switching and oxygen reversal points to avoid sensor-delay errors in catalyst diagnosis.

A unified generator set connection module replaces screw wiring with protected plug-in connectors to cut installation time and resist vibration.

Seat and neutral detection let an industrial vehicle stop engine output for safety, then restart steering-assist power when the driver returns.

Tank pressure changes and activation data let vehicles attribute fuel use across engine and auxiliary loads for better efficiency and maintenance.

Control logic uses exhaust geometry, filter fill status, and catalyst temperature to keep engine exhaust invisible while meeting emissions limits.

Dynamic gearbox and engine control keeps low-load operation in an optimal range to cut soot, fuel use, and anti-pollution blockage.

Real-time gear, engine speed, and braking control keeps EATS hot enough on downhill slopes while holding vehicle speed in range.

Electromagnetic rotor-stator actuation replaces bulky throttle linkages, enabling thin-profile, rapid, and precise air intake control.

Excess braking energy drives a hydrogen recirculation compressor, avoiding resistor heat load while storing useful pressure in the fuel system.

Excess braking energy is absorbed by pressurizing recirculated hydrogen, reducing waste and preserving heavy-duty fuel cell braking capacity.

A dual-pass ejector with bypass and check valves purges canister gas under negative or positive intake pressure while cutting gas-line complexity.

Brake-force thresholds keep the engine stopped after stop-on-move deceleration, avoiding unnecessary restarts and reducing fuel use.

Variable boost current matched to engine temperature and injection demand cuts booster load and capacitor wear in fuel injection control.

Throttle and ignition timing are staged across the inertia phase to shorten accelerator-on downshifts while reducing shock and misfire.

Predictive engine power and speed adjustment preserves unloading power reserves without interrupting crop harvesting.

Concurrent delivery of both fuels during changeover stabilizes engine speed and prevents electrical load drops in mobile generators.

A starter-generator with hybrid supercapacitor and lithium-ion power enables low-temperature engine starting, reverse rotation, and less pull-start fatigue.

Coordinated wastegate, vane, and engine control raises engine power while keeping turbo speed within safe limits to reduce degradation risk.

Using generator frequency instead of engine speed improves steady-state control, damping torsional vibration, and adaptation across power assemblies.

Pre-checking combustion conditions before circuit mode activation cuts adaptation steps and prevents unstable engine operation on track.

A motorcycle-mounted ECU module lets riders change engine maps, read fault codes, and test components without specialized tuning tools.

Direct throttle-body signal control bypasses ECU delay, letting drivers tune pedal response with a rheostat to reduce power lag.

Switching from feedback-only to added feedforward injection during sudden load rise improves engine response while avoiding lean air excess ratio.

A dual-switch quenching circuit rapidly discharges solenoid valve inductance while blocking energy feedback and limiting shutdown voltage spikes.

An MGU-based virtual flywheel adjusts crankshaft angle in real time to smooth engine vibrations without the weight and lag of a mechanical flywheel.

Uses existing pressure and fuel level data to estimate whether a vehicle fuel tank vented gas during parking without extra sensors.

An engine control module replaces jumpy mechanical throttle linkage with sensor-based control to smooth response and limit vehicle speed.

AI predicts vehicle signal ranges and tolerance bands from correlated inputs to detect component failures with fewer false alarms.

Future speed profile simulation brings engine restart forward during coasting, cutting fuel use while reducing restart wear and delay.

Travel history and slope-based fuel prediction help recommend work machine parameters that balance fuel use and production on changing routes.

Dual controllers and redundant pedal sensing maintain accurate opening signals when one controller fails, improving vehicle control reliability.

A detachable support structure lets an engine-generator unit be removed for maintenance or replacement while overall power service continues.

Phasing combustion timing between two engines cuts driveline torsional vibration, reducing unloaded gear noise and wear.

A pressure regulator limits turbocharged intake pressure to protect the air compressor from peaks while preserving compression efficiency.

Using air and gas throttles with oxygen sensing, this case shows real-time fuel quality detection for accurate natural gas engine mass flow control.

Combines pressure, VOC, and mass-flow sensing in one leak check module to detect canister leaks and excessive hydrocarbon emissions.

Lookup-table speed control for jet engine starter-generators simplifies FPGA certification while reducing torque ripple and resonance.

Monitors exhaust temperature change before and after a PM trap to detect removal even when sensor wiring remains intact.

Engine brake assistance is adjusted from hydraulic temperature to reduce brake fluid overheating while maintaining work machine braking.

By reading heater resistance instead of external sensors, this case measures fluid flow and temperature faster and more reliably in harsh conditions.

An ion sensor detects pre-ignition during intake or compression, enabling timely countermeasures that reduce pressure and protect engine components.

One integrated valve meters hydrocarbon auxiliary fuel ahead of low-GHG fuel to stabilize combustion and reduce emissions.

This case uses rotational speed changes during startup to detect multi-cylinder misfires before unburned gas can degrade the catalyst.

A model sets hydrogen injection pressure to balance compressor work, engine torque, fuel use, and NOx limits.

A controller adjusts the EGR accumulator valve based on feedback to correct fraction deviations during transients, preventing knock and misfire.

Radial fuel concentration via pre and post injection maintains combustion stability during retarded timing, reducing vibration noise and soot generation.

A fuel filter detection device measures differential pressure across the system to identify clogging conditions.

A supervision computer analyzes engine operation parameters to detect incorrect fuel types in petrol vehicles.

A manifold air pressure detector measures inlet pipe pressure variations downstream of an air throttle valve to identify engine combustion instability.

Calculates fuel aging from circulation and temperature data, alerting drivers to consume aged fuel quickly while maintaining performance.

A non-uniform displacement engine control system adjusts motor torque to manage cylinder deactivation transitions.

Segments exhaust flow and compressor air paths to prevent surge while reducing specific fuel consumption and nitrogen oxide emissions.

A control unit calculates a maximum speed gradient based on crankshaft stop position to adjust ignition timing and inlet valve timing.

Relocating terminating resistors to the hull eliminates unused components in multi-motor setups while maintaining signal integrity.

A compression-ignition engine control system expands operational regions using dynamic parameter thresholds.

A control system maintains engine rail pressure within a stable range by adjusting the suction throttle and high-pressure pump operation.

A fuel controlling unit determines combustion ratios using location and terrain profiles to deliver precise fuel blends.

A fuel supply system uses a return flow path and property sensor to monitor fuel quality during engine stopped states.

A second exhaust gas sensor monitors oxygen saturation in a first catalytic converter to determine charging characteristics for precise enrichment control.

Retarded fuel injection and ignition timing prevent pre-ignition during high-temperature restarts while maintaining starting torque.

A vehicle control device uses a bandpass filter to convert timer operation frequency into a voltage value for diagnosis.

Auxiliary diesel engine takes over power supply during standstill, reducing main diesel starter load and conserving energy.

Segmenting cylinders routes hot exhaust to the second intake, maintaining gas temperature for efficient after-treatment operation at low load.

Segmenting the supply into two electric pumps eliminates gearbox failure risks while maintaining reliable fuel delivery.

A vehicle gearbox control system adjusts transmission ratios to optimize fuel efficiency during driving.

A controlling device compares predicted and measured air mass to verify two-step exhaust variable valve lift mode conversion.

A control device supplies peak and lift adjustment currents to manage valve body lift quantity in electromagnetic fuel injection valves.

An unknown input state observer estimates clutch torque to adjust engine output, reducing synchronization oscillations and vehicle jolts.

A modular leak detection module integrates VOC sensors and mass flow meters to diagnose fuel evaporation systems.

Engine control unit estimates fuel vapor temperature to detect recirculation system leaks without extra sensors.

Monitoring temperature gradients across multiple exhaust sensors detects thermal events and prevents false alarms from single-sensor failures.

Asynchronous injector actuation accelerates fuel evaporation in the intake manifold, resolving incomplete vaporization and mixture inhomogeneity at ignition.

AFM module disables fuel cutoff based on manual transmission gear position to maintain engine operation.

Cylinder pressure measurements adjust natural gas substitution rates to resolve measurement precision issues with variable heating values.

Adaptive current waveforms stabilize fuel injector armature motion, eliminating bounce and shot-to-shot variations.

Modifying accelerator pedal characteristic curves with idle travel provides haptic feedback, resolving driver awareness loss during hybrid mode transitions.

A lawn mower engine deactivates cylinders via a central control unit to optimize fuel usage during operation.

A control unit calculates injected fuel mass using air and exhaust heat variables to adjust actuation.

Segmented cylinder fuel injection raises aftertreatment temperature above activation thresholds, preventing fouling from unburned hydrocarbons.

A diagnostic system detects engine heater usage via temperature derivatives to distinguish heater effects from sensor faults.

A dual fuel injector merges control valves within the body to enable independent liquid and gaseous fuel delivery.

A fuel gas supply method maintains a constant flow rate ratio between supercharger and cylinder passages to stabilize engine output.

A combustion chamber structure with specific crown surface geometry maintains swirl and tumble flows during the compression stroke.

Switching between theoretical and lean modes prevents power shocks and vibration while maintaining fuel efficiency.

A catalyst transfer function determines air-fuel ratio imbalances by analyzing exhaust gas sensor output within a specified frequency range.

A peak-hold assist mechanism manages injector current flow using switching elements and a control circuit to stabilize electromagnetic valve operation.

Diagnostic apparatus monitors conductive carrier temperature using segmented resistance elements.

One pump performs leak detection and purging, reducing device complexity while maintaining precise hydrocarbon measurement via real-time feedback control.

Oil supply control device switches master data sets to maintain target hydraulic pressure despite viscosity changes causing operation delay.

A trained neural network processes noisy solenoid current profiles to detect valve states, eliminating the need for complex filtering or additional sensors.

An electric supercharger bypass valve diverts airflow to manage boost pressure in staged engine systems.

Engine control unit diagnoses stuck fuel pressure sensors by cycling target pressures before normal operation begins.

Swirling air flow from injector improves combustion efficiency while reducing system complexity and emissions.

A controller adjusts port injection ratio to limit adhered fuel at intake ports during engine operation.

A control unit adjusts the actuator signal period based on measured valve needle positions to compensate for hydraulic closing delays.

Retarding spark ignition timing increases exhaust gas temperature to activate the catalyst during vehicle cold start conditions.

A controller manages Start Stop Coasting and Idle Stop Go functions in manual transmission vehicles to optimize engine stopping.

A cylinder-by-cylinder air-fuel ratio controller corrects detecting time deviations using dispersion and correlation analysis.

Activation lever with integrated lockout member selects fuel enrichment modes based on ambient temperature, resolving cold weather starting difficulties.

A hybrid control unit adjusts engine speed and oil pressure to sustain vehicle operation when high voltage power is lost.

A twin turbocharged diesel exhaust system manages catalyst temperatures through differential turbine expansion and independent manifold routing.

An engine air-fuel ratio control device executes fuel injection feedback to stabilize operation during deceleration.

Thermal expansion of pistons via lubrication heaters compensates for manufacturing tolerance variations in compression ratio.

A controller manages intake valve closure and fuel injection timing to maintain catalytic converter efficiency during engine stop events.

Controller deactivates starter at compression top dead center, reducing gear noise and improving fuel economy during engine start.

A driver integrated circuit coordinates multiple solenoids using dual control loops and a peripheral bus for precise actuation.

Intake oxygen sensor detects water and alcohol content in knock control fluid via pumping current changes.

Rich control reduces catalyst oxygen storage while ammonia detection prevents unburned gas emission deterioration.

An engine output control apparatus manages torque converter stall conditions through dynamic speed-based thresholds.

Gradually decreasing control current balances magnetic and biasing forces, reducing impact noise during high-pressure fuel pump operation.

A combustion control device adjusts fuel injection and ignition timing based on detected pressure deviations.

A starter device uses a rotatable ring switch and push button to manage prime mover power states through a dedicated controller.

An engine control system compensates for varying fuel quality by adjusting pilot fuel quantity and air-to-fuel ratio via a nitrous oxide error signal.

An air charging system scavenges compressed gas from an engine cylinder into an accumulator to prepare fuel charges.

Exhaust purification system monitors diesel particulate filter pressure to trigger automatic forced regeneration without driver input.

An engine assembly uses an electric heater and air mover to warm the exhaust catalyst before startup.

Dynamic modeling of nozzle needle position over time corrects injection quantity errors during short solenoid drive cycles.

Dynamic ignition timing control using engine speed and cycle history to stabilize two-stroke engine operation.

A power distribution module determines load shares among marine generator sets using Brake Specific Fuel Consumption curves.

Capacitor backup drives the fuel control shaft to a safe position during external power failure.

A corona controller detects arc formation and rapidly decreases voltage to the igniter.

A fluid cross connection merges two common fuel rails in a multi-bank diesel locomotive engine to enable shared high-pressure fuel delivery from multiple pumps.

A high pressure fuel pump method controls individual elements to deliver reference pressures for performance assessment.

A turbocharger exhaust gas recirculation pipe uses compressed air to preheat its walls and prevent condensation.

Split injection strategies reduce combustion noise by preventing rapid in-cylinder pressure rises during compression self-ignition.