Electrical Control TRIZ Cases

Real-time EGR setpoint adjustment compensates for internal-external differences to control trapped burned gas fraction.

A method determines the minimum hydraulic injection interval of a piezo-servo injector by analyzing pressure profiles in the control spring chamber.

A controller reads resistance values from connection devices to identify installed aftertreatment components.

Calculating exhaust-gas recirculation rate from turbocharger speed and lambda eliminates mass air flow sensor durability issues.

Calibrated injection timing reduces CO2 emissions, while a fuel additive manages NOx levels to meet stringent standards.

A controller executes engine synchronization immediately upon crank signal input to advance injection timing.

Segmented cooling channels and integrated pressure sensors manage nozzle temperatures and detect gas leaks without increasing structural complexity.

Segmented cylinder enrichment with targeted exhaust gas recirculation increases engine airflow while maintaining stoichiometry to protect catalyst efficiency.

Adjusting spark ignition timing based on cylinder turbulence reduces starter motor load and improves expansion combustion efficiency.

A vehicle speed control unit adjusts maximum travel velocity based on seatbelt wear detection to maintain driver posture stability.

Segmented exhaust lines and asymmetric combustion raise aftertreatment temperatures without complex throttle valves, simplifying the engine system.

Segmented exhaust manifold chambers route specific cylinder flows to enable concurrent hydrocarbon injection and exhaust gas recirculation.

A turbocharger system injects pressurized gas from a tank to drive the turbine and maintain torque response during low fuel conditions.

Downstream exhaust sensors correct estimated heat generation values, resolving accuracy loss from individual differences and aging degradation.

Direct coupling eliminates transmission losses, enabling efficient kinetic energy recovery across wide rotational speed ranges.

An exhaust gas purification system positions an ammonia-based solution feeder upstream of a diesel particulate filter to enhance ammonia production.

Pumping plunger draws fluid from auxiliary tank into pressure chamber before ignition, preventing starting failures caused by leakage.

A CO clean-up catalyst purifies exhaust emissions using ion-exchanged zeolite and supported ceria.

VECU monitors environmental signals to predict coasting opportunities and control engine state.

Engine controller converts drive torque data into rainflow cycle counts to improve measurement precision without increasing device complexity.

Rate-shaped pneumatic injection manages turbo lag while keeping emissions within regulatory limits through dynamic solenoid valve control.

Estimates retained fuel via oxidation catalyst temperature to adjust pilot injection, preventing torque spikes during particulate filter regeneration.

Diesel engine control device manages fuel injection quantity and timing across two distinct combustion modes to enable seamless operational transitions.

A high-pressure fuel injection pump driven by an electric starter enables independent pressure testing within the common rail.

An electronically controlled valve purges vaporized fuel from the high pressure rail to prevent abnormally high pressure that blocks fresh liquid fuel intake.

A pressure coupled control method adjusts diesel and natural gas rail pressures to ensure precise fuel matching during engine operation.

Recycling aqueous ethanol solution stabilizes reformed gas composition, resolving ethanol concentration instability that reduces thermal efficiency.

A double pipe breather system detects outer-pipe pressure via an enclosed space and communication passage.

A rough terrain vehicle twin-clutch transmission control unit manages engine output and clutch engagement for rapid movement initiation.

A backhoe diesel engine increases speed automatically to raise exhaust gas temperature for particulate filter regeneration.

Fixed valve timing below a load threshold extends inlet opening for accurate air mass estimation, reducing rotational speed fluctuations during rapid changes.

A controller adjusts reformer fuel and air flows to maintain a target air-to-fuel ratio.

Alternating injection pulse patterns excite engine speed signals to isolate injector drift, correcting fuel delivery errors and reducing emissions.

A driveline control system manages exhaust temperature through dynamic coasting activation and deactivation.

A hydrocarbon-selective catalytic reactor device monitors exhaust gas conditions to trigger regeneration cycles for maintaining catalyst activity.

A vehicle controller detects sudden start conditions during neutral or park shifts to limit engine torque and engage the brake.

Microprocessor drives fuel pump for set time to establish pressure before starter activation, preventing injection delay from battery voltage drop.

Oxygen sensors detect condensate levels in charge air to adjust spark timing and purge accumulation, preventing engine misfire during acceleration.

A coil current intensity profile determines the precise time an actuator armature reaches its mechanical stop position.

A dual fuel injection arrangement directs greater fuel volume toward the intake valve side to cool exhaust regions.

A fuel pump control unit adjusts the motor duty ratio low limit based on accelerator input to maintain target pressure.

A control unit switches an engine to idling-stop mode using brake lever sensors and vehicle status data.

A method adapts the characteristic curve of a nitrogen oxide sensor using downstream readings.

A generation source calculator estimates attached precursors based on intake temperature to trigger cleaning modes when deposits exceed thresholds.

A solenoid valve controls fuel vapor flow from a canister into each cylinder of a multi-cylinder motorcycle engine unit.

Controller detects out-of-gear conditions to allow engine speed exceeding governed limits, resolving fuel efficiency versus downshift capability trade-offs.

A throttle valve heating control apparatus uses a PTC heater and controller to prevent freezing in EGR systems.

Controller adjusts EGR valve open degree and boosting apparatus parameters to manage gas supply.

Retarding the intake valve closing timing prevents knocking and pre-ignition while maintaining high geometric compression ratios.