Electrical Control TRIZ Cases

Startup controller detects fuel properties via crank angle time ratios and adjusts ignition timing to reduce exhaust emissions.

A controller evaluates crankshaft signals to install pressure sensors in specific cylinders, adjusting fuel injection timing based on subset feedback.

A prediction method calculates future time intervals by applying a dynamic ratio of past interval increments to an average error sum.

A control method corrects lambda probe offset values using dual upstream sensors to maintain accurate oxygen storage levels in catalytic converters.

A control system applies constant voltage to an air-fuel ratio sensor to detect exhaust gas composition accurately.

An engine control system alternates speed and load to generate intake manifold vacuum.

Activates the carbon canister heater and purge valve to release hydrocarbons detected by the existing intake air temperature sensor.

Using median cylinder signals as setpoints stabilizes control against outliers, improving performance uniformity across cylinders.

A period estimation module calculates the rate of change of engine speed to generate a deceleration fuel cutoff signal.

A throttle opening controller adjusts valve sensitivity based on detected intake air density to prevent hunting in high altitude conditions.

Segmented return lines with thermal recirculation prevent injector failure and fuel gelling in diesel engines.

Comparing modeled and sensed turbine pressure values detects vane sticking, reducing false diagnoses and excessive friction that cause corrosion.

Determining saturation current and eddy current characteristics for fuel injector coil drives to enable precise operational parameter adaptation.

A control device offsets one engine's reduced drive output by increasing a second engine's power to maintain constant total drive output.

A controller adjusts fuel injection using a heat release model to match a target pressure curve.

Adjusting throttle position based on brake booster vacuum levels maintains consistent intake manifold pressure during engine starts.

Dynamic needle movement varies the throttle gap opening cross-section, enabling precise fuel dosing while preventing cylinder wall wetting.

A pressure reservoir control system infers accumulator fluid pressure through indirect measurements taken directly within the pump chamber.

A cylinder deactivation control method adjusts ignition patterns to balance mechanical loads across engine cylinders.

An injection control device calculates energization time corrections using integrated current differences to maintain precise fuel delivery.

Multiple injection pulses stabilize combustion and reduce wall film mass, extending the operating range of fuel supply interruption.

A fuel system diagnostic adjusts leak detection thresholds based on inferred ground surface distance to compensate for thermal variations.

Alternating flow direction prevents oxygen saturation of the exhaust catalyst, reducing regeneration fuel consumption during cylinder deactivation.

Merges components into one casing using labyrinth vents to equalize pressure while blocking rainwater ingress.

A passage throttle valve adjusts opening based on injection operation amount to maintain target reducing agent pressure.

An EGR estimation method determines gas replacement states in upstream passages during fuel cut to calculate accurate mass flow rates.

Electronic control adjusts internal combustion engine speed based on operational mode to optimize fuel consumption.

Enleaning the air-fuel mixture resolves the contradiction between rapid torque reduction and fuel enrichment requirements during high-speed gear changes.

A control device splits total actuator opening between a wastegate and compressor bypass valve to manage boost pressure.

An engine controller switches air-fuel ratios to manage oxygen storage in oxidation catalysts.

A bypass valve directs compressed intake air away from engine cylinders to adjust the air-fuel ratio.

A flow control module directs compressor discharge through a heat exchanger to raise intake manifold temperature during engine cold starts.

A fuel injection control apparatus adjusts calculation start timing based on engine rotation speed to store and switch results for each cylinder.

Segmenting cylinders into donor and non-donor groups allows independent spark retardation, regenerating the filter without raising intake gas temperature.

A fuel injection valve integrates a resin-molded amplifying unit with the signal transmitting member to boost detection signals.

Dynamic fuel cut-off speed prevents hunting between injection stop and restart by adjusting thresholds relative to transmission input shaft speed.

Post-injection in dedicated EGR cylinders overcomes flammability limits to boost hydrogen and carbon monoxide concentrations, improving combustion efficiency.

Applying metal stearate to exposed particles extends useful life without degrading performance of deeply submerged abrasives.

A predictive tachometer profile calculates engine speed offsets using acceleration and pedal rate data to generate dynamic display updates.

A cylinder balancing method analyzes individual crankshaft acceleration signals to detect irregular engine running and apply precise compensation values.

Monitoring lambda probe signal transitions determines oxygen storage capacity to detect injector defects without disturbing driver comfort.

Detecting voltage offset in two-point lambda sensors using dynamic lag time determination for accurate air-fuel mixture control.

A control unit adjusts throttle valves using rotational-speed-dependent load demands to optimize fuel consumption during efficiency mode.

A second turbine extracts energy from compressor bleed air to recover power.

An overflow conduit routes fuel from the filter device back to the tank, preventing pressure spikes that damage the filter structure.

Spark and airflow actuators reduce crankshaft torque to improve shift efficiency without fuel economy loss.

A fuel supply system uses a booster pump and controller to maintain pressure in marine propulsion engines.

A gas rail pressure wave determines gaseous fuel specific gravity through acoustic frequency analysis.

A control unit determines pre and post-regeneration diagnosis values to detect particulate filter defects using sensor output signals.