Electrical Control TRIZ Cases

Segmented parallel manifold processes cylinder exhaust independently to eliminate series backpressure while maintaining engine power.

A polarized electromagnetic actuator uses a single permanent magnet to optimize magnetic flux across dual ferromagnetic armatures.

A control device switches between closed-loop impedance matching and open-loop duty cycle regulation to manage sensor element temperature.

A four-way valve directs intake air through a condensed water separation module to remove liquid droplets from the recirculation stream.

Proportional-integral controllers adjust engine speeds based on torque errors, balancing load and preventing inefficient powertrain interactions.

A parallel particulate filter and selective reduction catalyst arrangement uses an S-shaped communication passage to route exhaust gas between components.

Estimates propane and butane percentages from low-pressure sensor data to prevent condensation and reduce petrol consumption.

An asymmetric piston protrusion maintains tumble flow speed and turbulence energy, resolving the trade-off between flame propagation and flow deceleration.

A control valve uses a bypass path to maintain coolant flow during actuator failure.

A fuel pump control method adjusts pumping frequency based on real-time engine demand to optimize delivery.

A dedicated regeneration air line supplies compressed intake air directly to the gasoline particulate filter bypassing the combustion chamber.

Energy balance calculation updates wall surface temperature estimates during cooling operations, enabling accurate actuator control.

A dynamic engine control device adjusts monitoring thresholds based on warm-up state.

A detection sensor facing a to-be-detected body rotates with the crankshaft, resolving run-out precision issues in horizontally-opposed engines.

Adjusts ammonia supply to SCR catalyst by temperature to prevent excessive discharge.

Segmented piston bowls enable direct diesel injection to ignite premixed low reactivity fuel, resolving HCCI combustion control limitations.

An engine exhaust bypass valve diverts gas around the purification apparatus during fuel-cut conditions to maintain catalyst efficiency.

A diagnostic method determines inlet manifold pressure and mass flow rate to detect purge valve operation status.

An electromagnetic valve opens without voltage and closes only when intake underpressure triggers the control unit.

A control system detects low speed pre-ignition knock using a sensor, enriches the fuel/air ratio, and limits engine torque to protect powertrain components.

A fuel injection valve control device calculates precise valve-open time using dual learning values to manage electromagnetic actuator timing.

A controller estimates virtual unit angle periods using pre and post tooth data.

A hydraulically actuated gaseous fuel injector uses a lift chamber to apply an opening force on the valve member.

Controller automates fuel switching using pressure and speed thresholds to eliminate manual intervention and downtime.

A fuel supply controller sets a non-detection period based on ambient temperature and residual fuel quantity to prevent erroneous clogging determinations.

A current control semiconductor device dynamically corrects gain and offset variations using a reference current pulse superimposed on the load.

Skip-firing donor cylinders controls exhaust gas recirculation accuracy, reducing NOx emissions and eliminating costly downstream valve hardware.

Accumulator valve positioned between pump and rail insulates injectors from pressure pulsations, ensuring accurate delivery.

Adjusts diesel post-injection timing based on cylinder density and temperature to optimize fuel spray penetration.

Intermittent fuel injection raises particle filter temperatures for rapid soot oxidation while preventing component damage from sustained high heat.

Capacitance measurements detect nozzle needle closing time to calculate actual start of injection, compensating for manufacturing tolerances and aging effects.

A fuel tank with a resiliently deformable wall portion varies volume to absorb internal pressure changes.

A magneto ignition coil generates a first spark discharge via capacitor discharge followed by a second inductive spark to extend total spark duration.

Segmenting exhaust passages allows placing the temperature sensor externally for precise detection while maintaining easy maintenance access.

Periodic valve shaft movements maintain lubrication and enable malfunction detection when actual opening matches the target position.

A fuel injection system injects gasoline at high pressure near compression top dead center to form a precise air-fuel mixture.

A preactivated compressor builds boost pressure before engine start, eliminating sluggish torque response during rapid acceleration.

Heat transfer drives gas expansion and contraction phases independently of piston movement within the engine cylinder.

A variable nozzle vane mechanism adjusts boost pressure to match actual ignition delay with a target period.

A fuel priming circuit captures expanding LNG vapor in a dome collector to prevent pump vapor lock and recovers the gas for safe venting.

A boost pressure control device calculates a target turbine opening area using a physical model to adjust the variable turbine position.

Increases valve overlap as piston temperature rises, reducing particulate emissions during cold start.

A vehicle powertrain control apparatus adjusts engine output characteristics via an operation mode determining section to increase driving force during reacceleration.

A fuel injection control device sets drive current using a profile with no hysteresis to stabilize injection amounts.

A marine propulsion shift control system detects linkage position to modify engine speed thresholds for smoother gear engagement.

Segment acoustic signals into cycles, normalize features using noise estimates, and apply classifiers to resolve detection precision challenges.

A turbulent jet ignition pre-chamber system disperses partially combusted products through small orifices to ignite the main fuel charge.

A temperature estimation module derives turbine outlet temperature from wastegate command signals and inlet conditions.