Electrical Control TRIZ Cases

Processing alternator waveforms into a secondary timing signal provides engine redundancy without adding weight or complexity.

A four-stroke engine piston features a recessed central portion to manage fuel compression and ignition timing.

A controller inhibits vehicle motion until the catalyst reaches operating temperature.

A supercharger adjusts rotational speed to deliver pressurized air during engine braking.

A vibration device replicates engine idling vibrations to mask stop-start transitions, resolving driver discomfort from sudden noise changes.

Periodic heating sublimates urea crystals while feedback adjusts models to prevent clogging.

An exhaust purification system adjusts catalyst temperature using controlled fuel injection to maintain particulate matter removal.

An abnormality determination apparatus extracts the rotation second-order component of intake flow fluctuations to identify breather line disconnection.

A control apparatus adjusts the predetermined time for engine restart based on detected driver intention and shift lever operation speed.

A sensor system measures fuel mixture conductivity and permittivity to determine the stoichiometric air to fuel ratio.

Staged gas injection into a pre-chamber scavenges residual exhaust gases and cools the tip to prevent premature combustion.

A control apparatus adjusts variable ranges for piston position and valve timing to prevent mechanical interference between engine components.

Fluidically coupling the compression and step chambers of a direct injection fuel pump maintains port injector fuel rail pressure during high flow rates.

Switching cam contours adjusts gas exchange valve lift curves to minimize throttling losses during partial-load combustion engine operation.

Location-based supervising arrangement enforces emission restrictions on marine dual fuel engines, maintaining data logs for regulatory verification.

Variable purge flow routed to the compressor inlet or throttle outlet maintains air-fuel stoichiometry while resolving incomplete canister purging.

A control device measures camshaft rotational phase and motor angle signals to assess sensor normality.

Dual quenching controls coil current decay to prevent abrupt piston impact, ensuring sufficient fluid filling while reducing operational noise.

A control system selects reduced-cylinder operation to raise exhaust temperature for additive vaporization.

A gas sensor control apparatus induces electric current between electrodes using an electromotive force cell and a voltage circuit to increase exhaust side electrode potential.

A thermal flow meter uses a resin molded protrusion to position the temperature detecting portion outside the main housing.

A variable displacement engine control system selectively deactivates cylinder groups based on exhaust catalyst regeneration status.

A control device adjusts air-fuel ratios during temperature raising to maintain catalyst oxygen storage capacity.

A diesel particulate filter regeneration system uses instrument panel switches to let drivers inhibit or terminate passive regeneration events.

Indirectly calculates upstream pressure to bypass unreliable sensors during transient engine operations.

Electronic control unit detects crankshaft acceleration at compression top dead center to identify engine cylinders.

A control apparatus adjusts ignition timing and air intake to enhance catalyst warm-up performance in spark-ignition engines.

A method measures actual counter voltage at a defined operating point to stabilize exhaust gas probe temperature.

Arithmetic processing circuit estimates power transmission deterioration to execute dynamic torque limit control.

A fuel rail pressure drop measurement system isolates individual injectors to compute precise pressure differentials during injection events.

Shifting intake valve closure timing adjusts cylinder gas pressure, compensating for sluggish manifold response delays during torque changes.

Adjusting gas flow targets using measured temperature or pressure maintains precise injection control despite fuel property variations.

A crank angle sensor detects backward rotation to output distinct signals for accurate engine control.

A probe control unit determines voltage characteristic values to diagnose reference cell impedance using pulsed pump currents.

Housing electrode covers pump main body to form capacitance gap for alcohol concentration detection.

A vehicle control system uses a brake unit to generate deceleration when the accelerator pedal is not depressed.

A control unit manages fuel and ignition timing in internal combustion engines to regulate rotational speed during high load conditions.

Storing measured cam dimensions and positions to adjust fuel injection quantities, compensating for manufacturing tolerances that cause inconsistent combustion.

Regeneration controller substitutes failed filter inlet pressure sensor with EGR valve sensor data for differential pressure calculation.

A calibration system commands the EGR valve to a fully-closed position and monitors exhaust gas air/fuel ratio during steady-state operation.

Single-shot roto molding uses a removable inner mandrel to define precise internal pipe diameters in plastic air intake components.

A refueling vapor valve directs fuel tank vapors to the exhaust manifold catalyst during refueling events.

A cold light off catalyst bypass routes exhaust flow around a turbocharger turbine to enable rapid pollutant conversion during engine startup.

A controller adjusts the estimation crank angle interval based on operating conditions to optimize combustion state detection.

A segmented engine controller combines a reference path generator with a disturbance rejection loop to adjust boost pressure.

A computing unit ascertains fuel injector wear by numerically differentiating pressure gradients in a high-pressure reservoir.

A hydraulic pump coupled to a turbocharger shaft charges an accumulator to supply brake pressure during engine shutdown.