Electrical Control TRIZ Cases

Convergent nozzles entrain exhaust gas under low-pressure conditions, while turbulent mixing supports engine efficiency and lower knock tendency.

Cold-start SCR catalysts stay below conversion temperature; a heater and pump warm the aftertreatment path before engine operation.

Direct EGR meters can add cost, restrictions, and failure points; this case calculates flow from turbocharger and engine data.

A controller dynamically adjusts blower operation, pressure ratio, and air-to-fuel ratio to preserve fuel economy across altitude and ambient changes.

Resonance material rearranges liquid molecules while unified control coordinates multiple fluid units for improved combustion efficiency.

Dual SCR stages and downstream feedback support NOx sensor diagnostics during normal heavy-duty truck operation without disrupting DEF control.

Regional fuel variation can force manual recalibration; location-based maps adjust exhaust valve positions for steadier engine performance.

During cranking, bypass and boost circuits help large fuel injectors overcome spring force and battery voltage drops for reliable starts.

Variable hydrogen supply can disrupt combustion and emissions control; cylinder head temperature feedback helps regulate engine operation.

Motor-driven forced induction scavenges the crankcase after shutdown, helping remove moisture and condensation during frequent start-stop operation.

Multiple cylinder sensors capture and analyze pressure data in real time, reducing manual interpretation errors and supporting immediate marine engine corrections.

A shared injector driver actuates two electronically controlled valves, reducing drive circuits and control-module complexity.

Retarding exhaust valve opening and advancing closing raises exhaust temperature to accelerate GPF soot combustion during forced regeneration.

Different-permeability actuator regions guide magnetic flux through the armature, helping a gaseous-fuel injector deliver higher pressure and flow.

Pressure changes complicate venturi-pump diagnosis; ELCM and fuel-tank feedback enable testing while the engine is off.

Closing the shut-off valve lowers delivery-pipe pressure so oil maintains lubricity without a high-pressure pump, simplifying gas-fuel supply.

An emergency pull-start battery powers the control module and fuel shutoff solenoids when a generator’s starting battery is drained.

A resonance material rearranges liquid molecules while controlled airflow and valves improve atomization and vaporization for combustion.

An outflow-cell catalyst layer oxidizes CO from PM combustion while the honeycomb filter maintains high particulate collection during fuel cut.

A dynamic intake-passage model estimates pressure, temperature, and throttle flow to improve air-fuel ratio control during rapid engine transients.

Crankshaft shift can distort piston timing; controlled injector pulses and pressure-curve fitting identify true TDC for more accurate injection.

Pre-startup scavenging sends residual exhaust through the catalyst, whose purification degree determines when warming is needed.

Nitrogen in ambient air can form nitrous oxides during combustion; an oxygen concentrator supplies concentrated oxygen to the engine intake.

An ECU and ETurbo controller coordinate torque and speed signals to reduce latency and keep the compressor below its speed boundary.

A controller links electric compressor operation to control-valve commands, limiting boost-pressure loss and power oscillation during engine transients.

A resiliently isolated mass and non-rigid conduit limit injector heat and vibration, helping prevent vapor lock in handheld power tool engines.

Multiple vent valves and inert gas purge remove residual pressurized fuel from engine feed lines without introducing combustion-supporting air.

Load-step testing uses the hybrid battery, sensors, baseline data, and a digital twin to score engine health and anticipate maintenance needs.

Low-temperature exhaust limits energy recovery; integrated turbocharging, EGR, and Rankine modules redirect heat to power generation and engine support.

Valve-specific reference values improve fuel-path leak sensitivity without adding sensors, reducing false alarms in high-pressure engine systems.

Base maps, adaptive injector compensation, and cylinder feedback address configuration differences and aging for balanced combustion.

An adapter adds aftermarket IO to factory ECUs through separate processing and memory, avoiding full ECU replacement and enabling user updates.

A characterizing-temperature rule times compression-stroke fuel injection for spontaneous combustion, preventing knock and enabling compression ratios above 15.

A dual-sensor feedback loop adjusts air-fuel ratio, spark timing, and exhaust gas recirculation to balance cylinders and reduce NOx.

A common-rail ECU calibrates leak thresholds from the volume control valve’s operating point to detect smaller fuel-path leaks.

Engine speed and load set a baseline while heat-release and cylinder-pressure feedback correct combustion phasing for each cylinder.

Feedback links the electric compressor and control valve to stabilize intake pressure and engine power through load transients.

An engine reformer combines reformed-gas temperature and idle rotation fluctuation to detect catalyst deterioration before unstable operation.

Cylinder sensors estimate actual fueling so the controller can compensate injector drift and maintain performance in dual-fuel engines.

Fuel composition changes as methane vaporizes first in LNG vehicles; methane-corrected feedback values support accurate fuel-system failure diagnosis.

Engine startup can leave SCR catalysts at 110–150°C; CDA, elevated idle, and accessory heating raise aftertreatment enthalpy for NOx conversion.

Proactive load requests offset torque changes during rich-to-lean switching, reducing engine-speed dips and flares at idle.

Variable filter parameters match torque response changes across engine states, improving diagnosis against estimated torque.

Pre- and post-catalyst oxygen sensors identify catalyst deterioration and cylinder-to-cylinder air-fuel imbalance without an air-fuel ratio sensor.

A three-level strategy combines base and adaptive maps with cylinder pressure feedback to balance combustion and reduce emissions.

Retarding intake-valve closure during idle reduces cylinder charge and crankshaft irregularity, helping cut vibration, noise, fuel use, and emissions.

Engine-output feedback detects fuel injector drift and updates fueling parameters to preserve power and prevent engine damage.

Stored-oxygen feedback adjusts pre-stop enrichment so the catalytic converter avoids excess oxygen that can raise NOx during restart.

During cylinder deactivation, selective heater, cooler-bypass, and timing actions raise exhaust temperature for effective catalyst operation.

An auxiliary controller uses baseline ECU injector data and engine air mass to adapt supplemental fuel delivery without user calibration.

A secondary control unit sends real-time commands via a diagnostic port to manage engine operations without modifying factory software or voiding warranties.

A controller measures solenoid coil voltage and current to determine actuator resistance and manage boost pulses.

A fuel vapor treatment apparatus uses a pressure detector to monitor purge passage pressure for component health.

A split injection controller measures injector opening angle, operating time, and operation count to execute cold start fuel delivery.

A control device calculates combustion noise index values from in-cylinder pressure to adjust ignition timing.

A fuel amount distribution method switches between single and dual injector operations to manage precise air-fuel ratios in low fuel rate sections.

Controller detects miswired oxygen sensors and switches cylinder groups to correct air-fuel ratio imbalance diagnostics.

A weighted sensor fusion method combines venturi differential pressure and EGR valve position data to calculate accurate exhaust gas recirculation flow rates.

Segmenting high-pressure and low-pressure EGR loops enables sufficient exhaust gas recirculation at low engine speeds and high torque.

A coordinated MIMO control strategy adjusts multiple air charging actuators simultaneously using feedback linearization.

A hydraulic pump control module adjusts fluid pressure to open exhaust valves.

A controller calculates target valve positions using modeled pressures derived from minimal sensor inputs to manage EGR flow.

A shared adjustable coolant pump supplies cooling fluid to both a dosing valve and a charge-air cooler in an internal combustion engine.

Real-time sensors measure fuel temperature and density, enabling a control entity to derive heating value without laboratory analysis delays.

A controller calculates temperature change deviations during fuel cutoff to detect exhaust purification device detachment.

Controller warms supercharger before operation by forcing rotation at low speed, preventing ice impaction and rotor damage during cold starts.

Segmented fuel pressure tanks with independent shut-off valves minimize Joule-Thomson temperature drops during cold starts.

Heater element serves as bias resistor to enable self-diagnosis of open circuit faults without adding manufacturing complexity.

Temperature-adjusted fuel injection fractions enhance reactivity and reduce detonation risks without requiring separate fuel systems.

An electric turbo-compounding system dynamically adjusts power output to stabilize engine operation.

Segmenting learning speeds isolates short-term fluctuations from long-term trends, ensuring accurate fuel injection control during feedback interruptions.

A controller coordinates an electric heater with engine post-injection commands to manage exhaust gas temperature.

Detects excessive torque by recalculating efficiency from ignition timing, preventing masked abnormalities when air amount increases.

Dynamic pressure monitoring detects tampered evaporative emission control systems that static tests miss, ensuring emissions compliance.

Parallel pressure control valves divert fluid flow from a high-pressure accumulator, eliminating custom valve costs and enabling scalable engine designs.

A dual-phase fuel supply system manages liquid-vapor balance in propane canisters using gravity feed and intermediate pressure vessels.

An engine control device selects fuel injection processing based on intake air pulsation rates to maintain precise air-fuel ratio.

Intermittently activating direct injection to cool the high pressure fuel pump, preventing internal damage and noise from temperature build-up.

Segmenting oxygen sensor output into unadjusted and diluent-corrected signals resolves excess torque errors during adaptive learning with active EGR.

A vehicle propulsion controller forecasts upcoming driving events to adjust engine torque and optimize energy usage.

An electric air intake fan motor varies rotation speed via a control box and car speed sensors to prevent fuel waste from excessive air volume.

A controller determines target mass flow and boost using a physics-based model to coordinate electric motor power with exhaust gas energy.

Valve controller applies high-frequency switching during the ending-of-activation phase to minimize current ripple.

An engine control apparatus adjusts intake air volume and ignition timing to stabilize combustion during cylinder deactivation.

Early direct fuel injection into skipped cylinders extends vaporization time, resolving expulsion losses to improve combustion efficiency.

A prediction model generates calibration values for vehicle components using training data sets.

A control device performs a checking injection to verify in-cylinder fuel delivery accuracy.

Electronic control unit calculates wave amplitudes and phases to synthesize fuel pressure models.

Detects upstream air density to adjust engine parameters, maintaining optimal SCR inlet temperature for efficient NOx conversion.

Engine management system detects defeat devices by comparing throttle valve flow rate with hot-film air mass flow sensor readings.

Predicts manifold pressure to estimate cylinder air charge, correcting irregular firing sequence errors.

Control unit interrupts regeneration when exhaust gas temperature drops below threshold, preventing fuel waste and oil dilution during light-load operations.

A dual ignition system manages independent spark devices to ensure reliable fuel combustion across varying operating conditions.

Independent inter-stage and boost pressure loops eliminate instability during single-to-multi-stage transitions.

An engine data processor module determines powershift reserves by generating output signals from torque setpoints and operating variables.

An engine control method stops fuel supply during inertial travel and delays restart until rotational speed drops below a threshold.

A fuel injector interface device maps rail pressure signals to individual cylinders using internal circuitry for graphical signal output.

A crank pulser rotor error removal method calculates inter-gear teeth coefficients from angular velocity data to eliminate measurement errors.