DC Motor Speed/Torque Control TRIZ Cases

Parallel FPGA logic reduces loop times and improves torque control bandwidth, resolving the trade-off between operational speed and controller complexity.

A thermal protection system manages motor temperature by gradually reducing sprayer pressure to prevent overheating.

A control unit estimates three-phase motor currents using a single DC line sensor and rotor position data for precise torque management.

Lubrication oil pressure controls axial rotor displacement to optimize torque at low speeds and reduce back EMF at high rotational velocities.

An active bleed system discharges high voltage buses by switching generators into motoring mode.

Automated motor control replaces manual wrenches to measure exact holding torque values, eliminating operator error and partial disassembly.

A variable-flux motor drive system adjusts permanent magnet flux density via inverter currents to control torque output.

A blower motor assembly uses a sensing circuit to detect rotation direction and adjust speed automatically.

A servo safety monitor compares instruction and feedback values to detect abnormal conditions.

Controller compares phase current ratios to detect diode faults, reducing downtime from extensive manual testing.

A power window control apparatus stores position data in EEPROM to identify glass location upon power restoration.

A vehicle window control system detects pinching events by computing rotational speed differences from motor pulse signals.

A testing device checks voltage potential at DC motor terminals during control circuit initialization to identify electronic faults before operation.

Decentralized speed droop and flux share modules in parallel drives eliminate high-rate communication requirements while maintaining dynamic performance.

Programmable error counter tracks illegal state changes in incremental encoder signals to manage fault detection thresholds.

Counter-rotating flywheels in a spherical housing cancel gyroscopic forces, preserving vehicle maneuverability while storing high-density energy.

A multiphase inverter controller switches between full-wave and half-wave driving modes via a neutral point switch member to maintain continuous motor operation.

A transition wiring system uses a single contactor and blocking diodes to switch traction generators between series and parallel configurations.

A single stator winding drives the rotor and provides position data through filtered signal comparison.

A motor driving circuit uses a control circuit to prioritize stepping motor operations over DC motors.

Replacing mechanical contacts with bidirectional triode thyristors eliminates switching reliability issues in safety-critical hand-held power tools.

Segmenting drive current isolates torque-producing components, compensating for inertial energy to set tightening precision without mechanical clutches.

Microprocessor regulates ECM torque by comparing target and real-time bus currents, eliminating complex vector models that increase hardware costs.

A fan control device uses a voltage divider circuit to detect thermister abnormalities and maintain full motor speed.

A dual servo motor system driven by a single outer control loop.

A dual-rotor gantry assembly enables independent rotational speeds for nuclear medicine and CT scanners.

Perpendicular switching lines reduce electromagnetic induction noise on AC-DC input lines, enabling compact circuit board designs.

An ultracapacitor bank supplies supplementary electrical power to mining excavators during high-load cycles.

A motor control device demodulates PWM signals to autonomously regulate brushless cooling blower speed after ignition shutdown.

Dynamic motor connection strategies resolve voltage current trade offs by adapting electrical topology to real time load conditions.

Segmented energy storage reduces electrical losses and thermal cycling stresses during high-power operations.

A current command generator produces MTPA commands for an interior permanent magnet synchronous motor.