Electrical Control TRIZ Cases

A solenoid valve control method monitors current waveforms to adjust pulse width modulation signals for precise actuation timing.

A diesel fuel pump control system selects start programs based on detected fuel temperature to ensure reliable operation.

A mode expansion module intercepts vehicle control signals to enable supplementary operating modes without new manufacturing.

A fuel injection device adjusts post-injection quantity to maintain filter entrance temperature in an exhaust gas purifying apparatus.

Segmented valve lift phases reduce pumping work while late opening increases turbulence, resolving the trade-off between energy loss and combustion efficiency.

A controller detects motorcycle tilt to manage fuel heating device operation and prevent pipe overheating.

A diesel engine control unit manages DOC inlet exhaust gas temperature through dynamic intake throttling adjustments.

A control circuit adjusts fuel injector pull-in time based on pressure signals to maintain consistent injection timing.

Adaptive fuel adjustment manages knocking in dual-fuel engines by increasing gas supply initially, then reducing it only when knock exceeds a threshold.

A vehicle controller adjusts auto idle engine RPM based on average worker-set RPM to optimize transition speed.

A control device adjusts diagnosis thresholds based on active boost control status to maintain accurate abnormality detection.

A pre-oxidation catalyst upstream of the main purification device manages multistage temperature rise injection to activate the system efficiently.

A malfunction diagnostic device monitors pressure sensor and pump current data to identify internal faults within evaporative fuel leakage diagnostic systems.

A port injection valve splits fuel into synchronous and asynchronous phases to optimize delivery timing.

Retarding exhaust valve timing compresses residual gas to boost temperature without cylinder deactivation, avoiding crankshaft excitations.

Classifying analog signals by occurrence frequency increases sampling rates for critical electromotive force measurements without upgrading the AD converter.

A common-rail injector uses pressure sensor feedback to adjust valve timing and duration.

A control device calculates a dynamic transition time based on drive torque differences to switch accelerator pedal characteristic curves smoothly.

A fuel control system closes the purge valve when engine speed drops below a threshold to prevent over fueling.

Dynamic coupling between a piezoelectric actuator and needle body detects mechanical bounce times to enhance injection accuracy without adding separate sensors.

Model predictive control module optimizes engine actuator target values, coordinating torque and emissions while reducing system complexity.

Applying actuator current prior to natural opening reduces spring force, enabling quiet valve operation and minimizing wear under high pressure.

Multi-stage fuel injection segments combustion events to enhance air-fuel mixing, delaying auto-ignition and reducing engine noise and emissions.

A CVT control system manages engine braking by adjusting the throttle valve position to create a vacuum that resists wheel torque.

Pressure sensor detects injector events through system transients, enabling real-time model updates that improve injection accuracy without complex hardware.

A reversible vacuum pump pressurizes the engine intake to evacuate residual hydrocarbons through open valves.

A control apparatus selectively employs single and composite control strategies to manage engine boost pressure targets.

Variable injection interval adjusts after-injection timing to align with oxygen arrival in diesel combustion chambers.

A hierarchical vehicle de-rate system classifies faults by cause and level to provide targeted operator feedback.

Filtering solenoid valve current signals removes noise spikes, enabling accurate closing time detection and reducing false positives in fuel injection systems.

An abnormality diagnosis apparatus corrects misfire counter values and adjusts detection thresholds based on fuel supply stop counts.

A fuel injection controller adjusts pump operation based on abnormality detection to maintain target pressure.

A multi-fuel engine controller manages direct injection fuel quantity to cool injectors during natural gas operation.

Preliminary fuel injection achieves homogeneity to reduce emissions while maintaining engine cycle speed.

An engine control device adjusts fuel injection timing to maintain combustion stability across varying thermal conditions.

Oxygen sensors measure exhaust gas composition to regulate oxidation catalyst conditions for particulate filter and lean NOx trap maintenance.

A cylinder intake air amount calculating apparatus uses an intake pipe model equation to determine current and predicted air quantities.

An oxygen supplying device delivers gas to the exhaust purification catalyst after warm-up to oxidize adsorbed sulfur.

A tank ventilation system uses a Venturi nozzle to generate negative pressure for purging activated carbon filters in motor vehicles.

Adjusts first throttle valve opening to suppress excessive negative pressure downstream of the second throttle valve during malfunction.

Alternating rich and lean combustion modes balances thermal energy to maintain post-treatment catalyst temperature at a precise setpoint.

An artificial intelligence system optimizes vehicle engine tone by processing real-time acoustic data through a signal processing controller.

A vehicle control system determines allowable torque ranges and corrects target output values to stay within those limits.

A thermal flow meter circuit package uses a resin fixing portion with thick and thin sections to reduce stress on the embedded electronics.

Gradual firing fraction changes tracked to manifold pressure reduce noise, vibration, and harshness during engine displacement switching.

A control device monitors camshaft rotation direction and calculates a rotational speed gradient to correct the pulse duty factor of an electric adjustment mechanism.

Adjusting port and direct fuel injection ratios based on sensor data mitigates engine knocking intensity.

Dynamic shutter control prevents condensation in the engine air supply cooler by adjusting ambient airflow based on real-time conditions.

Gradient-based PWM threshold prevents partial load oscillations by differentiating rejection severity for stable rail pressure.

A system estimates ammonia stored in multiple selective catalytic reduction catalysts to adjust engine air/fuel ratios.