Vector Control Systems TRIZ Cases

A motor torque controller minimizes copper loss in an electrical power converter by adjusting voltage commands based on required torque.

Nonlinear models detect harmonic vibrations to eliminate crane rope swinging and improve positioning accuracy.

A motor drive device estimates rotor position by detecting stator winding neutral point potential differences.

A sensorless permanent magnet synchronous motor control method transitions from open-loop to closed-loop operation during startup.

A calculation unit generates distinct voltage pulse commands to actuate inverter legs for magnetic pole position estimation.

A band-pass filter removes noise from hall sensor signals using speed estimates, maintaining measurement precision while rejecting harmful interference.

A control method applies variable phase voltages based on linearized current profiles to simplify parameterization.

Load-adaptive observer parameters compensate for salient pole distortion to maintain estimation accuracy under heavy loads.

A motor controller uses an inverse model to compensate self-inductance phase delay and gain reduction.

Active current feedback replaces delayed DC-link voltage detection, adjusting magnetization to dissipate braking energy through internal motor losses.

A motor control apparatus uses a filter circuit to reduce harmonic components in drive current signals.

A magnetic field sensor detects rotor rotation to determine adjustable element position.

Dynamic voltage injection amplitude adjustment compensates for current vector deviations to maintain signal-to-noise ratio while minimizing noise development.

Plausibility checks on target motor torque prevent overshooting and control deviations in adjustable roll stabilizers.

A shift range control apparatus uses a magnetic rotary encoder and output shaft sensor to detect rotational positions.

Segmented switching units isolate induction motors from a common inverter to enable individual torque control.

A vehicle motor controller selects inductance or efficiency current maps to optimize drive performance.

A motor drive control device uses voltage detection to determine conduction phases during startup.

Diagnostic checker circuit compares estimated motor signals with actual sensor data to detect discrepancies and prevent synchronization losses.

Controller applies low frequency voltage to induction motor stator, generating holding torque that eliminates mechanical brake wear during hill starts.

A motor controller manages three-phase short circuits using lower arm switching elements to regulate electrical conductivity.

A vehicle cooling controller adjusts fan and pump speeds using a disturbance observer to estimate thermal loads.

A motor control device computes voltage command values using smoothed correction signals to stabilize brushless motor operation.

A sensorless motor controller estimates rotation angle using coil voltage and current without physical sensors.

A motor control device determines rotor position using current and induced voltage electrical angles with phase angles derived from peak values.

A learned function maps phase currents to angular rotor position for sensorless control.

A control device corrects rotor rotation angle using angular speed differential to ensure precise vector control.

A multiphase rotating field machine determines rotor angular position by injecting a test signal and measuring phase currents.

Segmented controllers process mean and differential-mode currents using d-q coordinates to stabilize multi-phase generators with small leakage inductance.

A motor control device adjusts three-phase PWM duty cycles in leading and lagging directions to enable two-phase current detection within a carrier period.

Dynamic cutoff frequency adjustment eliminates manual adaptation work while suppressing current beat phenomena across varying motor operation states.

A single logic-type position sensor aligns the rotor magnetic polarization with a predetermined stator alignment position for precise control.

An intermediary monitoring device adjusts the commutation angle based on actual position data, reducing reaction delays and overrun distances.

A motor control apparatus calculates a suppression gain to limit power source current by multiplying the voltage command with a value between 0 and 1.

Determining rotor position offset by measuring current-aligned raw position data differences, eliminating auxiliary motor requirements.

Iterative directional offset tuning prevents regenerative mode operation by reducing measurement errors that cause bus voltage spikes.

A multi-phase voltage controller transforms stator currents into a non-rotating d-q reference frame to generate compensating inverter signals.

A control unit infers rotor phase and speed by comparing inter-line voltages with a threshold voltage.

A motor control apparatus extracts fundamental wave components from counter-electromotive voltage to determine rotor position and velocity accurately.

A rotating electric machine control system uses a multiplex communication line to transmit combined detection values from current and voltage sensors.

An electric machine generates sound signals by adjusting drive frequency to provide audible operational feedback.

Inverter controller computes filter capacitor currents to enable stable sensorless vector control without additional hardware sensors.

A motor control device calculates d-axis and q-axis currents to estimate rotation speed using induced voltage residuals.

Controller switches reference frame to rotor mechanical angle during zero torque, shutting down inverter to eliminate standby energy loss.

A piezoelectric element integrated into a blood pump controller senses driveline vibrations to detect thrombus presence.

A frequency converter control unit calculates current-dependent characteristic variables using discrete Fourier transform analysis of periodic AC signals.

An observer module determines rotor position from phase current and voltage signals, eliminating mechanical sensors while reducing computational overhead.

Torque correction units adjust instruction values to equalize currents between synchronized motors, preventing belt distortion and reducing power consumption.

A PMSM control method injects short stator voltage vector pulses to measure phase currents and determine the rotor d-axis position based on inductance variations.

A rotation speed calculation device uses current and supply voltage to estimate brushless motor speed without differential calculations.