Electrical Control TRIZ Cases

A control system manages additive injection into exhaust streams to optimize evaporation efficiency within the treatment chamber.

A turbocharger bypass valve routes exhaust gases away from the turbine to rapidly heat the catalyst.

An exhaust gas recirculation valve adjusts flow using steady-state sensor feedback and transient calculations.

Torque ratio feedback controls water injection to stabilize spark timing and prevent knock-induced torque fluctuations.

A control apparatus adjusts target air-fuel ratios for multiple cylinders based on external exhaust gas recirculation status.

A control device adjusts electronic throttle opening degrees to mitigate torque fluctuations during engine misfire events.

Merging dedicated drive circuits into one shared unit reduces system complexity and cost while maintaining precise injection timing.

Segmented cylinder control varies exhaust enthalpy to rapidly heat the catalytic converter and spin the turbocharger during cold starts.

An inline exhaust valve restricts flow to increase backpressure, reducing compressor air supply and improving combustion efficiency at low loads.

A diagnostic device supplies a uniform voltage signal to an electronic control unit, enabling automatic mode switching without separate communication lines.

Air-fuel ratio control unit adjusts target air-fuel ratio based on estimated catalyst activity to manage hydrogen interference.

A vehicle control system modifies engine operational characteristics through wireless signals to increase power output on demand.

A fuel injection control device switches from simultaneous to group injection after determining a crank reference position.

Piston diverters guide second fuel injection to autoignite the first fuel, reducing hot spots and improving emissions in dual-fuel engines.

Pre-calculated programming delays eliminate real-time processing complexity, ensuring rapid engine response and consistent combustion quality.

Complex modulation shifts harmonics to DC for reduced computational usage, enabling accurate diagnosis across variable valve actuation modes.

Controller dynamically switches between engine braking modes using aftertreatment temperature thresholds, balancing braking power with thermal management.

A control method adjusts an exhaust gas recirculation valve and exhaust shutter position to manage engine operating parameters.

An electronic control unit sets driving modes to prioritize diagnosis items and controls the motive power source accordingly.

An electronic governor adjusts throttle plate position using a motor and transmission to maintain target engine speeds.

Frequency-based modulation of the back-pressure valve promotes exhaust gas mixing, resolving sensor inaccuracy caused by non-uniform distribution.

Reversing the turbocharger shaft direction retards intake air and exhaust flow, raising aftertreatment temperatures without adding dedicated heating components.

A control unit generates a reactivate flag for lean NOx traps when exhaust temperature exceeds a predefined threshold.

Separate intake manifolds and parallel turbochargers maintain charge pressure when cylinder groups deactivate, expanding the operational range.

Radial gas injection at an oblique vertical angle overcomes sub-optimal dispersal from restrictive inlet pipes, enhancing mixing and energy output.

An integrated blowing back prevention plate on the air cleaner body ensures tight sealing, preventing fuel blowback and maintaining engine power.

Segmenting return lines isolates the flow meter from pump regulation pressure changes, enabling precise measurement without engine management interference.

Estimating exhaust after treatment device temperature using excess fuel injection avoids costly sensor installation while maintaining catalytic efficiency.

A fuel pressure control system uses a restriction execution unit to manage the opening degree of a pressure reducing valve.

Switching EGR cooler flow direction removes deposits and condensed water, maintaining cooling efficiency despite pressure fluctuations.

A trained algorithmic model determines optimal fuel distribution rates for engine-driven pumps based on unique operational parameters.

Estimate cylinder pressures using engine deceleration rates and a single reference sensor to adjust fuel injection timing.

A vehicle control device adjusts acceleration limits based on detected conditions to optimize travel dynamics.

A staged boost engine bypass valve maintains a closed position during low load conditions to prepare intake air flow for rapid torque demand.

Closing a tank switch valve isolates the fuel tank passage, allowing a purge passage pressure sensor to detect clog abnormalities based on signal changes.

A compression ignition engine control device adjusts pre-injection timing to cancel pressure waves from main combustion.

An encoder merges position pulse train and phase signals into a single common output stream.

A system uses electro-hydraulic pumps to create non-work loads for diesel particulate filter regeneration.

A vehicle aftertreatment system optimizes electrical and engine heat inputs using a weighted thermal model to manage catalyst temperature.

Integrating a charge density sensing system with a NOx sensor allows the controller to correct NOx levels caused by varying charge density.

A large diesel engine method sets gas fuel limits during transient operation to maintain target torque.

Temperature sensors in the intake passage calculate EGR gas flow rate to detect clogging without high-heat-resistant pressure sensors.

Timing secondary air injection after half-maximum exhaust valve lift purifies HC and CO emissions while maintaining pumping loss benefits.

Dynamically adjusts valve timing based on fuel sensor data to optimize thermodynamic conditions across varying fuel blends.

A method compares air ratio values from variable valve lift and throttle tests to detect inlet section coking in direct injection engines.

A power-based control system determines target wastegate positions using physics models to manage compressor and turbine power balance.