Electrical Control TRIZ Cases

Sequencing low-explosive-limit fuel ahead of higher-limit fuel cuts intake-line residue and helps prevent engine backfires.

Controller-managed heater power raises exhaust gas temperature for faster catalyst warmup while balancing emissions, fuel use, and driver demand.

Staged alcohol intake injection and high-cetane compression injection improve dual-fuel combustion while reducing hydrocarbon emissions.

Adaptive correction using ABV and WGV states improves airflow meter accuracy under intake pulsation for more precise fuel injection.

A Bayesian indicator normalizes mean indicated pressure by fuel injection and efficiency to avoid transient COV overestimation and cut emissions.

Liquid hydrogen vaporization supplements gas tanks to hold engine fuel pressure without heavy compressors, cutting weight and cost.

Independent ECU and HCU diagnostics detect relay, heating element, overheating, and communication faults for more reliable engine fuel heating.

Upstream and downstream lambda feedback trims catalyst oxygen storage precisely, cutting fuel use and pollutant emissions.

An asymmetric metering window separates nozzle filling from injection to stabilize multi-fuel delivery despite pressure fluctuations.

Multiple on-board sensors and machine learning identify alternative fuels in real time, helping engines adapt for emissions, performance, and durability.

Pressure-based flow estimation and exhaust lambda feedback are combined to match secondary air flow targets, improving catalyst conversion and lowering raw emissions.

Pressure-drop monitoring checks hydrogen shut-off valve closure while allowing fuel supply to resume quickly when a restart request occurs.

On-demand nitrogen generation and local flow adjustment compact a shipboard double-pipe hydrogen engine system while confining leaks.

A programmable computing unit sets measurement and transmission timing for a lambda probe, improving synchronization, flexibility, and data precision.

Decoupled target values for fuel, air, and aftertreatment cut calibration burden while balancing power, fuel use, and NOx control.

Temperature rise across an oxidation catalyst reveals biodiesel presence, helping adjust regeneration and prevent aftertreatment inefficiency.

Pressure, temperature, and VVT data let the ECU estimate trapped cylinder air mass without a contamination-prone flow meter.

Injector temperature, static fuel, and lubrication thresholds trigger cylinder reactivation to prevent coking and uneven wear during CDA.

LAS sensor data and AI control replace fixed cam timing with millisecond valve, fuel, and spark adjustment across changing engine loads.

By pulling tank pressure below atmospheric pressure, this case avoids check-valve closure and improves fuel tank leak diagnosis accuracy.

Knock intensity is managed by retarding ignition timing across all cylinders or only selected cylinders, reducing detonation without unnecessary power loss.

Fuel pressure thresholds switch a hydrogen engine between diffusion and premixed combustion to cut compressor load and improve efficiency.

Temperature and pressure trend signatures across intake and exhaust manifolds help pinpoint combustion engine component failures faster.

MAF-based feedback corrects engine CO2 regression models under special driving conditions, improving control accuracy without a CO2 sensor.

A valve-controlled exhaust bypass routes gas around the turbocharger to cut back pressure, improve air charging, and reduce turbo lag.

Dynamic ignition timing keeps exhaust pressure and turbo speed elevated, improving hydrogen engine torque response while limiting NOx.

Adding throttle and mixture shaft position sensors gives mechanical fuel servos closed-loop control and clearer troubleshooting data.

A common-body hydrogen module combines valves, filter, and sensors to cut sealing interfaces, simplify packaging, and reduce leak risk.

Integrated NOx sensing and lambda compensation correct oxygen sensor error to curb TWC NOx breakthrough without oversizing the catalyst.

Delayed ignition timing keeps exhaust pressure and turbo speed high, cutting NOx spikes while preserving fast torque response.

A two-stage overrun fuel cut check flags tampered NOx sensor readings, then verifies them with threshold-based emission response.

Sequential brake activation and exhaust event deactivation limit intake counterflow, valve train loading, and turbocharger surge during engine braking.

Dynamic fuel adjustment during skip-fire transitions compensates torque loss to smooth cylinder switching and reduce engine NVH.

Excess cryogenic hydrogen is routed to a fuel cell to cut energy waste while preparing aircraft engine fuel for efficient combustion.

Motor speed and torque variations are used to detect surge early and trigger corrective control without extra compressor sensors.

Preheating O2 sensors in EV mode enables immediate closed loop fueling at engine start, cutting HC and NOx emissions during cold starts.

Temperature-based torque and EGR control prevents water freezing in the EGR passage and helps reduce NOx discharge in cold conditions.

Dual solenoid waveform control detects injector valve arrival timing from current behavior, enabling electronic trim for more precise fuel injection.

Real-time humidity feedback lets the ECM adjust spark advance and intake airflow to stabilize marine engine power and reduce knock.

Model-based IMC throttle control stabilizes intake manifold pressure, cuts noise amplification, and helps reduce fuel consumption.

By isolating each injector and comparing PID integral responses at baseline pressure, leaking injectors can be identified without replacing all units.

Multi-stage natural gas pressure reduction and path switching stabilize injection pressure and prevent excessive valve cooling damage.

By converting boost demand into turbocharger kinetic energy demand, coordinated turbine and motor control cuts turbo lag with simpler control logic.

Alternating exhaust valve timing splits pulse flow between the turbine and EGR conduit to preserve boost, improve EGR use, and cut fuel consumption.

Correcting fueling error from injector drift and system noise improves broadcast engine torque accuracy for compliance and engine control.

Aligned injector spray passively fuels the prechamber, improving lean-burn ignition, fuel mixing, and NOx performance without extra injectors.

Downstream O2 sensor reversal data is normalized across gasoline-alcohol blends to improve catalyst deterioration diagnosis accuracy.

Preheating liquid fuel and managing air-fuel mixture temperature helps methanol engines avoid condensation and unstable cold-start combustion.

NOx fault detection is tied to a remaining drivable distance and engine restart lockout, limiting continued exhaust discharge until repair.

During rapid warm-up, intake pressure sensing detects valve deposit flow loss and advances injection timing to maintain ignitability.

Stopping port injector operation reduces direct injection pressure to stabilize fuel delivery and minimize injection variations.

A fuel injection system adjusts inlet and outlet valve timing to synchronize high-pressure pump delivery with engine cycles.

Machine learning model generates burner-specific control data for internal combustion engines using segmented annular fuel lines.

A fuel injection control apparatus divides fuel into pre and post phases to optimize combustion timing.

Deactivates primary and non-primary EGR cylinders to control EGR fraction, improving closed cycle efficiency and reducing in-cylinder temperature.

Retarding ignition and advancing valve timing maintains catalyst temperature above light-off during transient fuel shut-off, reducing emissions.

A water and ash-former mixture injected into the combustion chamber rapidly forms ash particulates to load a new particulate filter.

A dual fuel injection system adjusts port and direct injector ratios to optimize combustion.

A lambda controller determines balanced oxygen quantity in a catalytic converter to adjust rear control circuit manipulated variables.

A control system alters engine operation to consume fuel before reductant.

An electronic variable valve in a muffler tail pipe adjusts opening degree to switch engine exhaust sound between quiet and sporty modes.

Controllable flaps switch exhaust paths between main and auxiliary passages to reduce resistance during low-load operation.

An engine controller adjusts the air-to-fuel ratio dynamically based on vehicle speed and load conditions.

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

A control device adjusts second main fuel injection to maintain premix time for clean combustion.

A method uses exhaust pressure pulses to recirculate residual gas into the combustion chamber during the inlet stroke of an internal combustion engine.

A deterioration diagnosis apparatus uses air fuel ratio sensors to detect SCR catalyst degradation through induced chemical reactions.

An air-fuel ratio detection device applies alternating voltage to a sensor circuit and converts the amplified signal directly to digital data.

Controller uses brake pedal force thresholds to maintain engine-off states, preventing unnecessary startups that waste fuel.

Oscillating combustion phases maintain optimal oxygen storage levels, preventing catalyst deactivation during transient operations.

A dual-mode throttle control system switches between stability and rapid response modes based on accelerator pedal signal changes.

A combustion control apparatus manages intake valve timing and fresh air blocking to maintain gas stratification within the engine cylinder.

Control unit pre-pressurizes the air circuit via inactive cylinder aspiration to reduce turbo lag without adding hardware complexity.

A vehicle engine controller uses humidity detection to determine optimal stop durations.

A monitoring system detects fuel injector malfunctions by analyzing temperature differences between engine banks.

A desensitization method stabilizes cylinder air flow by matching EGR valve progressiveness to required characteristics.

Feedback control adjusts target air-fuel ratio to maintain constant oxygen storage amount in exhaust purification catalysts.

A vehicle controller transitions from airflow to spark timing adjustments for precise engine torque delivery.

A closed loop observer models turbocharger revolution rate to determine charge air mass flow without physical sensors.

A controller adjusts engine torque via a parasitic load to maintain exhaust temperature.

An integrated controller coordinates fuel and ignition to eliminate manual choke adjustments and improve low-speed starting reliability.

Segmented data frames on a microsecond bus control up to twelve DC motors, reducing power dissipation and output latency.

A fuel injection device performs divided injection during single energization by controlling coil current magnitude and maintaining magnetic flux.

A fuel injection control device uses a throttle opening read timing setter to detect throttle position at calculation activation.

A clutch release detecting component and rotational speed synchronization control component adjust engine speed to match transmission input speed.

Prevents compressor surge and reduces electric power consumption by activating the electric compressor before the working point crosses pre-surge lines.

A cylinder control system dynamically reassigns engine cylinders across banks to balance power output and reduce vibration.

A dual path boost circuit monitors electrical current flow to detect defective inductor paths within the power supply architecture.

Correlation functions transform low-pressure measurement data to predict high-pressure injector behavior, resolving engine noise issues during calibration.

A remote generator interface controller decodes OBD II signals and transmits them wirelessly, eliminating manual gauge checks for distant units.

A crankshaft rotation detection method uses high-pressure rail pressure changes to determine engine direction.

A controller calculates supercharger inertial force to stabilize compressor driving force feedback response during transient engine operation.

A torque converter clutch adjusts slip to manage driveline vibration during engine cylinder deactivation.

An abnormality diagnosis system calculates sensor response time during fuel cut control to detect deterioration accurately.

Dynamic fuel pressure control prevents excessive injection during idle while enabling periodic deposit removal from in-cylinder valves.

A blowdown runner wastegate couples a single exhaust path to the downstream passage, regulating turbine speed and protecting compressor integrity.

Electronic control unit monitors pressure deviations to detect air supply circuit faults, resolving diagnosis efficiency and economic feasibility trade-offs.

Port and direct fuel injectors segment atomization and precision tasks to reduce soot emissions at high speeds.

Shrink fitted sensor sleeves simplify mounting preparation by eliminating expensive special tooling and unreliable small diameter machining processes.