Control Devices TRIZ Cases

An implantable blood pump controller adjusts speed via accelerometer data to maintain flow during activity changes while reducing power consumption.

An electronic control unit increases engine power before engaging the all-wheel drive coupling to transfer torque smoothly.

A percutaneous connector enables direct contact charging to resolve slow recharging times and extend battery lifetime in implanted circulatory assist devices.

Adjusting motor speed in axial flow pumps to simulate target pressure-flow characteristics.

A biocompatible roller blood pump uses a compliance chamber to buffer pressure fluctuations and maintain optimal flow efficiency.

A control system selects operating modes to manage vehicle speed and transmission gear ratios.

A control allocation system manages redundant actuators to guide a vehicle along a planned path.

A cardiac support device applies dynamic external forces to match the heart's natural ventricular strain profile.

A vehicle control system adjusts fuel cut-off thresholds to terminate engine braking earlier during autonomous driving.

Flow modifiers increase renal artery pressure and decrease renal vein pressure to create a transrenal pressure gradient.

Helical soft pneumatic artificial muscles replicate twisting cardiac motion while eliminating tissue trauma and friction at the epicardium interface.

Segmenting the pump into four redundant chambers and merging control electronics eliminates invasive external components while ensuring reliable blood flow.

A vehicle route prediction method uses time-related functional rules derived from measured driving state derivatives to estimate future positions.

A compact blood pump uses a permanent magnet radial bearing to support the rotor assembly and move fluid efficiently.

A vehicle travel assist device adjusts target stop positions based on wheel position data to prevent overshooting.

System calculates ideal slip ratios to redistribute torque between axles, preventing tire slippage during turns.

A planetary transfer case connects or fixes the sun gear via a clutch to reduce NVH in high range while increasing vehicle speed in low range.

A four-wheel-drive vehicle uses a torque coupling to adjust transmission force for rapid propeller shaft synchronization.

A fully implantable cardiac compression device uses a fluid driver to inflate an inflatable jacket around the heart.

A sensor-equipped intravascular device directs retrograde fluid flow to generate back pressure within coronary veins for targeted myocardial reperfusion.

Optimized impeller blade geometry and magnetic drive enable high blood flow rates while minimizing hemolysis risk in percutaneous ventricular assist devices.

An interlocked control system synchronizes engine revolutions with travel speed using PID feedback, preventing engine overload during mowing operations.

An integrated controller coordinates multiple driver assistance modules by transmitting activation and deactivation signals to manage system states.

Self-regulating inlet pressures via hydraulic forces on the rotor assembly eliminates electronic control complexity in total artificial hearts.

A transcutaneous magnetic energy transfer system moves power across skin barriers using permanent magnets and electromagnetic induction.

Non-invasive magnetic coupling powers implantable cardiac assist devices without transcutaneous drivelines, eliminating infection risks from skin penetration.

A control device filters and combines vehicle dynamics data with chassis sensor data to enhance position information accuracy.

A physiologic blood pump control system adjusts peak-to-peak flow amplitude to optimize fluid delivery.

Variable stiffness mesh cannula transitions between compact and expanded states, preventing structural fracture during percutaneous re-sheathing.

An implantable pump uses an undulating membrane driven by electromagnetic coils to propel blood.

Lock collar actuation disengages drive axle assemblies to reduce energy losses and improve fuel efficiency.

A gain-scheduled PI controller adjusts pump current using intrinsic speed differentials to maintain physiologic perfusion.

A vascular support system determines total fluid volume flow by measuring motor temperature and thermal dissipation loss without separate heating elements.

A cardiac monitoring system generates dynamic ventriculo-arterial coupling ratios from conductance catheter signals to track patient energetic states.

Capacitive coupling interfaces merge power supply and bidirectional data transfer onto one conductor, reducing puncture site size and infection risk.

An external cardiac jacket uses pneumatic bladders to compress the heart wall, improving pumping efficiency while avoiding blood contact risks.

A tapered housing design distributes tissue stress across the implant interface of a mechanical circulatory support device.

Single transistors replace H-bridges to reduce power component count, resolving thermal resistance issues in compact engine computers.

A controller for an implantable blood pump adjusts speed via a suction response algorithm to prevent ventricular collapse.

Multi-grooved rotor design in axial flow blood pumps eliminates mechanical wear and reduces thrombosis risk through magnetic suspension.

Segmented soft magnetic sheets with welds bridge electrical discontinuities to reduce heat generation and energy consumption in compact blood pumps.

A dual power source housing prevents simultaneous battery removal via a lock element, ensuring uninterrupted IABP operation during transport.

Wide blade projections on an axial flow blood pump impeller increase motor torque while magnetic bearings eliminate mechanical wear and reduce hemolysis risks.

A signal processing device preprocesses sensor data within an implantable heart pump to enable efficient transmission via a transcutaneous line.

Axial sleeve displacement opens the drive connection in a tractor power take-off clutch, eliminating frictional losses when no implement is connected.

A limp home battery connects only to essential sensors and the ECU, reducing backup power unit size.

Segmented cable protectors allow independent exchange of inner components, eliminating downtime caused by complex disassembly procedures.

A flexible external driveline cable allows patients to align and connect heart pump controllers while viewing the display, reducing required connection force.

A unified control device monitors electrical supply for cardiac prostheses using dedicated isolation means.

Extracting heart rate from VAD motor current waveforms eliminates ECG electrode requirements, reducing device complexity while maintaining monitoring accuracy.