Mechanical Control TRIZ Cases

See how segmented exhaust paths with valve-controlled turbocharger and supercharger enable prec

Aligning the actuator connection with the operating shaft cuts bending moment and abrasion while preserving fuel injection responsiveness.

Sheet-metal inner and outer half-shells simplify throttle valve housing assembly while preserving an insulating air gap and leak-resistant sealing.

By aligning the actuator connection with the operating shaft, this case reduces bending wear and rattling while maintaining fuel control response.

Absolute rotor position lets an ETM deliver starting torque and time direct fuel injection, enabling lighter engine starts with a smaller power source.

Crankshaft position and vector-controlled ETM torque enable lighter engine starting hardware while maintaining starting torque and battery recharge.

By learning the high-rigidity stopper first, motor torque can be reduced near the low-rigidity stopper to cut impact force without long learning time.

A rear-fender box under the seat packs the battery and ABS modulator tightly while preserving access, fixation, and structural strength.

Absolute crankshaft position lets the ETM boost torque before TDC, overcoming compression while limiting weight and voltage issues.

Dynamic intake valve closing and lower transient compression ratio cut turbo lag while preventing knock and fuel-efficiency loss.

Variable intake valve timing advances valve closing in a marine dual-fuel engine to suppress knocking and shorten power-up time.

Fuel temperature sensing and engine speed limiting help an outboard motor avoid vapor lock in the temporary storage tank and maintain stable fuel supply.

A piston bowl protrusion guides hydrogen fuel jets to improve air mixing, cut NOx emissions, and support stable engine combustion.

A controller varies fuel, air, and engine speed to match off-grid electrical loads, cutting fuel use and extending generator maintenance intervals.

Hydrogen fuel jets are guided by a piston-bowl protrusion to improve compressed-air mixing, combustion efficiency, and emissions.

This ICE case compares measured exhaust pressure with a calculated reference to detect sensor errors during engine braking.

Magnetic field detection filters engine vibration and combustion noise to maintain measurement precision for reliable variable compression ratio diagnosis.

Hydraulic actuation adjusts the piston crown position to change compression ratio without adding oscillating mass.

Frequency resonance coils ionize intake air to boost torque and reduce exhaust emissions without complex mechanical cleaning systems.

Rotation speed controller adjusts engine speed change rates based on turbocharging pressure to manage torque delivery.

Predicts diesel cylinder pressure via engine driving variables and a Wiebe function, eliminating separate sensors that cause contamination.

A variable compression ratio control method adjusts response speeds for high and low compression states to maintain engine efficiency.

Combination lever integrates manual fuel valve and electrical shutoff switch to resolve complexity trade-off in small engine shutdown systems.

Routing combustion charge around a turbine-generator during start-up reduces torque requirements and prevents interference with engine starting.

A two-stroke engine drives a generator to charge a battery, creating a lightweight series hybrid power source.

Engine control system adjusts fuel injection timing to maintain exhaust temperature, reducing tailpipe emissions during idle.

Dynamic exhaust flow restriction elements resolve the contradiction between rapid aftertreatment heating speed and steady-state engine power output.

A display device indicator maintains constant engine compression ratio readings within specific dead zones to stabilize visual feedback.

A variable compression ratio engine adjusts wastegate valve targets to maintain supercharging pressure.

Estimates crankshaft angle using combustion speed to resolve measurement precision versus system complexity.

A controller estimates oxygen sensor response time by analyzing lambda value changes during fuel cut-off transients.

A rack and pinion mechanism adjusts the fuel plate position during operation, eliminating disassembly required for traditional fixed-profile plates.

A compressor control system varies the maximum permitted outlet temperature based on operating time to manage boost pressure.

Common selector forks reduce device complexity while ensuring reliable valve actuation through automatic return.

A dual-fuel diesel engine control system monitors air-gas ratios to maintain full load operation.

Variable compression ratio control device adjusts ignition timing based on detected humidity levels.

A potentiometer-based apparatus modifies sensor voltage signals to disable variable cylinder management systems in vehicles.

Water detection sensors trigger the control unit to disable automatic engine restart, preventing water ingress and engine damage during deep water driving.

A control device for variable compression ratio mechanisms integrates actuator angle sensor data to determine shaft position.

A controller adjusts exhaust manifold pressure setpoints to raise gas temperatures during engine operation.

Dynamic bypass valve positioning manages back pressure to enhance power output during acceleration in turbocharged two-stroke engines.

Analyzing intake manifold pressure oscillations determines the current compression ratio using existing sensors.

A variable compression ratio engine control device adjusts allowable cylinder pressure based on mechanical attenuation rates.

A fuel supply control strategy adjusts air/fuel mixture richness based on engine deceleration revolution counts.

Electric motor applies drag force to rapidly decrease engine speed, resolving slow rotational inertia response in hybrid vehicle startups.