Electrical Control TRIZ Cases

Variable valve timing creates distinct gas spring types in skipped cylinders, resolving the fuel economy versus noise vibration harshness trade-off.

Conditional engine rotation speed stabilizes intake air amount control, resolving fluctuations during clutch operation.

A gas buffer storage tank diverts excess fuel gas from a high-pressure rail to the engine air intake, eliminating costly recirculation infrastructure.

Advancing ignition timing before top dead center reduces knocking and temperature levels caused by exhaust backflow in dual chamber mufflers.

A vehicle idle stop system adjusts support information notification timing based on real-time brake pedal operation to ensure driver recognition.

A control module modulates bypass valves and variable-geometry turbines in a two-stage electrical boosting system.

Controls particulate filter regeneration by spinning the engine during shutdown to manage oxygen levels and reduce NOx emissions.

Estimates catalyst transfer function gain using periodic air-fuel ratio modulation for non-intrusive degradation assessment.

Adjustable exhaust valve closure timing retains gaseous fuel in cylinders, eliminating external treatment units and boosting engine efficiency.

Engine controller correlates cylinder misfire history with pre-ignition events to identify spark plug degradation.

Adaptive heating prevents element damage during self-diagnosis in high-temperature intake systems.

Compensates for fuel vapor entering the intake manifold through the positive crankcase ventilation system, reducing misfires and stalls during engine operation.

A control unit suppresses idle speed adjustment when a centrifugal clutch engages to prevent unintended vehicle acceleration.

An engine control device adjusts idle rotational speed based on stop duration and temperature to maintain operational stability.

A vehicle control apparatus adjusts exhaust gas sensor heating based on environmental conditions to ensure accurate sensing signals.

A spark ignition engine calculates catalyst oxygen storage capacity during accelerator pedal lift phases using upstream and downstream oxygen sensors.

Angled vent insert amplifies pressure changes via Coanda effect, resolving insufficient measurement precision in existing crankcase venting systems.

A temperature model predicts future exhaust gas profiles to drive closed-loop control circuits.

Segmented fuel injection warms the cylinder without igniting the charge, enabling vaporization below the flash point and eliminating auxiliary heating devices.

Analyzing PCV signal length and amplitude range reduces false breach indications during engine cranking.

An adapter manages liquid LPG and ammonia delivery through original high-pressure pumps using supplementary cooling.

A differential pressure threshold adjusts via a mileage-dependent coefficient to manage particulate matter accumulation in diesel filters.

Integrating crankangle pulses resolves detection reliability issues caused by intake manifold pressure signal disorder during transient engine operation.

Segmented pressure sensing calculates peak values to detect pre-ignition before top dead center, resolving detection reliability issues.

Initializing integral control deviation at rich-to-lean mode shifts mitigates exhaust pressure overshooting while maintaining drivability and fuel efficiency.

Sigma delta accumulator offsets manage firing phase transitions during skip fire operation to reduce noise, vibration, and harshness.

A control unit regulates scavenged-over fresh gas quantity based on catalytic converter temperature and hydrocarbon levels.

Corrects fuel mass with intermediate values derived from rotational speed changes, reducing emissions while maintaining control precision.

A gasoline engine ignition system uses analog and digital trigger circuits for stable operation.

A controller modifies exhaust gas recirculation calibration to incrementally raise temperatures for aftertreatment regeneration while limiting NOx emissions.

Dynamic valve lift adjustment enables air cooling while preserving catalyst efficiency during liquid coolant failure.

A control device manages split injection timing to ensure consistent fuel spray diffusion around the ignition position.

Corrects erroneous coolant temperature measurements caused by auxiliary heater thermal conduction, enabling accurate engine control and reducing emissions.

Variable control gain reduces displacement speed at stopper limits, preventing mechanical impact and impulsive sound.

A knock control system adjusts spark timing advance rates based on cylinder deactivation modes to optimize engine performance.

A mass flow control method sets engine charge targets using a predefined time characteristic to manage inflow and outflow dynamics.

A predictive control method segments driving profiles into sub-monitoring windows to estimate emissions before compliance deadlines.

Dynamic injection switching reduces throttling losses while maintaining ignition reliability across varying engine loads.

A dynamic torque control system adjusts engine torque demand using real-time rotational speed differences and powertrain inertia to minimize oscillations.

A model predictive control module generates target values for engine actuators to coordinate multiple subsystems.

A processing device generates control data for an exhaust gas probe to enable flexible operation without modifying the ASIC.

A dual-fueled spark ignition engine adjusts ammonia and combustion promoter flow rates to maintain stoichiometric combustion across varying loads.

An LPV polytopic observer estimates turbocharger speed from pressure data, resolving the trade-off between measurement precision and device complexity.

Segmented pre-chambers ignite auxiliary fuels to stabilize lean mixtures, reducing nitrogen oxide emissions while maintaining chemical efficiency.

A remote acoustic pressure sensor determines turbosupercharger speed from engine pressure waves, eliminating expensive invasive mechanical sensors.

Diesel engine creates wall-high ammonia zones to fix low burn rates and cut unburned emissions.

Storing actual full open valve angles compensates for dimensional errors, ensuring consistent sensor output across products.

Dynamic intake valve timing control optimizes effective compression ratio to prevent knocking while maintaining high torque output.

A controller monitors engine magneto signals to power auxiliary components only when the tractor is running.