Electrical Control TRIZ Cases

Neutral display is delayed until clutch disengagement is confirmed, with torque limiting to prevent unintended vehicle movement.

Dual time-constant filtering finds signal intersections to average pulsating measurements accurately without extra sensors or added phase lag.

Shearable links and independent RVDT connections keep an aircraft throttle operable when one mechanical path jams.

A three-position rotatable valve balances exhaust flow between volute passages and bypass paths to improve boost, efficiency, and NVH.

A balance pressure chamber offsets throttle pressure difference, enabling reliable turbocharger surge prevention with a smaller electromagnetic coil.

Randomized impedance sampling breaks synchronization with noise, improving oxygen sensor temperature control and long-term reliability.

Humidity sensing corrects the gas constant in engine intake pressure calculation, improving manifold pressure accuracy under changing air conditions.

A single coil actuates multiple valve members in sequence, widening fuel injection range while reducing valve size and complexity.

A BSFC-based valve control strategy keeps dual-volute turbocharger flow areas balanced to use exhaust pulses efficiently while limiting engine backpressure.

A strongarm, clamp, and damping grommet steady the shutoff valve solenoid to limit vibration wear and prevent false tripping.

Parallel check valves and a restrictor enable crankcase leak checks without solenoids, cutting cost, wiring, and engine space.

Preemptive torque reserve control boosts engine torque during direct drive-reverse shifts to prevent stall, reduce shock, and hold engine speed.

Crankshaft speed irregularity reveals compression ratio changes, enabling precise variable-compression engine diagnosis and fault detection.

Low air density can overload merged hydraulic pump flow, so confluence is limited by altitude and engine speed to preserve torque and lift performance.

Relay-switched check circuits replace microcomputer safety logic, blocking unsafe engine starts and showing switch states on a display.

Physics-based virtual sensors estimate piston friction and engine torque from cylinder pressure and exhaust heat where direct sensing is impractical.

A nested diagnostic line detects false airflow from misinstalled or leaking blow-by vent hoses, protecting crankcase venting reliability.

A rotating metal nozzle penetrates the exhaust wall to create a gas-tight sensor mount without pre-drilled openings, welding, or extra machining.

A single cockpit alert combines engine and onboard system alarms to speed pilot assessment of critical engine damage.

A pressure-driven vapor valve opens beyond the relief threshold to vent excess fuel tank pressure to the canister while keeping the unit compact.

A control module compares engine speed targets during directional shifts to maintain power and limit excess torque without a torque converter output sensor.

Inflection-point timing in drive voltage and current enables precise electromagnetic valve opening and closing control despite noisy inductance changes.

A speed sensor and start-up limiter keep engine speed below clutch-in, then release on detected acceleration and deceleration.

Dual RAM buffer switching lets ECU data blocks transfer and nonvolatile memory writing run in parallel while preserving check-value verification.

A four-sector controller linked by control and actuation buses centralizes aircraft subsystems to cut weight, simplify maintenance, and improve flexibility.

Monitor high-side and low-side gate signals to verify injector shutdown before engine start, without fuel injection or tiny current sensing.

Periodic DAC excitation turns tiny LSB output errors into a detectable AC signature, enabling accurate fault diagnosis with lower sampling demand.

Voltage monitoring in both high-side and low-side paths enables fast short-circuit detection across a load without extra switching stress.

A digital compensator detects heater PWM edges and pauses pump-current updates to reduce noise and stabilize oxygen sensor measurements.

A fast-ramp soft shutdown keeps ignition coil current under control when it is below the transistor limit, helping prevent unwanted rises and spark risk.

Short PWM pulses are detected and stretched to valid timing windows, filtering spurious injector signals that can trigger control-circuit latch-up.

Variable A/D sampling timing captures multiple valve-drive waveforms to detect fuel injection singular points beyond fixed time resolution.