Diagnostic systems monitor mass airflow against expected values to detect supercharger over-boosting or under-boosting degradation.
Segmenting the control system into two microprocessors eliminates software delays and ensures safe automatic restart functions.
Segmented pump operation and fluid diversion lower parasitic load by 68% during cold starts, maintaining engine cranking speed.
Feedback control system prevents coolant boiling and time lags by dynamically adjusting the exhaust gas heat exchanger valve based on sensor inputs.
Heating fuel before injection reduces particulate emissions by improving atomization without adding complex control sensors.
A watercraft control system adjusts pollutant output using location data to manage engine emissions automatically.
Multi-input multi-output feedback linearization coordinates air charging actuators to resolve transient response inaccuracies and reduce calibration effort.
Compressed air injection accelerates the turbocharger and supports combustion, resolving slow transient response in smaller natural gas engines.
A cylinder deactivation control system segments engine operation into working condition regions to determine fuel injection quantities based on crankshaft speed and target torque.
Adjusting fuel injector transfer functions based on exhaust lambda values and cylinder fuel fractions.
A dual-throttle fuel vapor treatment system calculates concentration using differential pressures from purge and crankcase passages.
A virtual mass flow sensor calculates fresh air and exhaust gas recirculation rates using intake pressure, temperature, and oxygen data.
A start controller adjusts engine output in multiple stages using an elapsed timer to manage ignition timing delay during vehicle movement.
Adaptive feedback control compensates for pulse separation effects, maintaining precise fuel delivery accuracy across varying operating conditions.
A fuel injection control apparatus estimates low-pressure supply pipe fuel pressure to adjust valve timing.
Engine control system matches speed to hydraulic demand, reducing fuel waste in hydrostatic vehicles.
A sulfur poisoning detection system calculates stored mass using fuel and oil consumption data to manage exhaust treatment.
A controller adjusts throttle valve opening speeds to synchronize intake amounts across engine cylinders.
A gaseous engine device detects abnormal combustion and monitors occurrence frequency and intensity to determine suppression methods.
A hydraulic control valve assembly reduces flow restriction via a bypass valve, increasing actuation speed for faster engine transitions.
A piston crown cavity with raised portions guides gas flow to maintain swirl and tumble motion during the compression stroke.
A cylinder deactivation system uses a shutter and recirculation duct to prevent fluid suction and maintain catalyst temperature.
Segmenting fuel supply into two pumps with differing capacities resolves the contradiction between high power demand and energy loss at low flow rates.
Stepwise tapered inner lead section minimizes heat loss to maintain uniform temperature distribution for accurate air-fuel ratio detection.
Diesel engine fuel injection control adjusts pre-injection amounts based on oxygen levels to reduce knocking noise in low load ranges.
Direct thermal communication between heat flux sensors and the combustion chamber measures combustion power for real-time engine control adjustments.
A vehicle control system limits engine output torque during the pull-away phase to manage clutch engagement.
Segmented cylinder operation raises exhaust temperatures without reducing air mass throughput at low engine loads.
A urea injection nozzle system uses exhaust gas heating to increase solubility and melt adhered deposits.
Acoustic sensor signals pass through a bandpass filter and an adjustable gain-correction function to produce a corrected knock score.
Actuated intake flaps alter fluid flow paths to generate specific swirl or tumble effects within engine cylinders.
Electronic control unit adjusts fuel injection pressure and amount to correct heat generation rate gradient deviations.
ECU interpolates fuel economy operating points based on detected atmospheric pressure to calculate demanded torque and engine speed.
Processor infers combustion speed from crank angle data to detect cylinder states, eliminating expensive in-cylinder pressure sensors.
A gas sensor control device calculates output change and concentration difference parameters to determine sensor cell deterioration.
A control device estimates exhaust gas recirculation rates using sensor signals and physical models.
A control device segments sound reducing parts to extend coil energizing periods for high pressure pumps.
Mechanical emulsifying system dynamically adjusts water fraction to reduce NOx and soot emissions while preventing injection line corrosion.
A control unit determines actuator position by counting commutation artifacts in the DC motor current waveform.
A gas engine fuel supply system mixes low calorific fuel with suction air to maintain precise air-fuel ratios.
Predictive control prevents singularity conditions during mode switching, improving drivability and reducing emissions through precise in-cylinder management.
A method corrects NOx predictions using EGR ratio deviations and environmental factors to enhance exhaust system accuracy.
A diagnostic method determines injector efficiency using a predetermined reference curve to measure operating parameters.
A control system calculates exhaust gas recirculation rates by measuring the difference between fresh mass air flow and charge air flow.
Variable idle speed control adds steering correction terms to maintain engine stability during load fluctuations while reducing fuel consumption.
A controller adjusts the port injection ratio and delays fuel injection timing in forced-induction engines.
Sequential cylinder bank firing during deceleration fuel shut-off identifies air-fuel ratio deviations for precise monitoring.
A negative pressure engine cycle draws fuel and air into the combustion chamber using vacuum forces instead of mechanical compression.