DC Motor Speed/Torque Control TRIZ Cases

A motor control apparatus estimates current torque and compensates the velocity profile in real time to raise motor speed.

A semiconductor switch element replaces mechanical relays in an electric power steering control device to reduce volume and improve reliability.

A flywheel connected to AC motors and a winch drum stores and transfers energy during cyclic operations.

A supply voltage selection circuitry dynamically switches between battery and boost voltages to power half-bridge driver stages.

A controller adjusts low pass filter constants in an electric power steering system to manage assist force response dynamics.

A temperature estimation controller determines stator winding temperatures using thermal impedance models and electrical parameters.

Adjusting sampling signals compensates for hardware delays, improving stability at high motor speeds and low pulse ratios.

A control device estimates mechanical resistant force to compute thrust compensation values for electrically driven doors.

A motor control circuit measures winding resistance to determine temperature using existing current sense components.

An adaptive reference voltage circuit scales with the external operating voltage to evaluate input signals across 20 V to 200 V ranges.

A hybrid motor drive apparatus uses independent shutdown circuits to isolate faulty inverters and maintain limp-home operation.

A load-drive controller uses a PWM unit and current monitoring to regulate motor drive signals.

A dedicated hardware circuit generates and selects PWM signals to regulate fan speed without occupying CPU processing resources.

A steering control apparatus differentiates current supply between manual and automatic modes to optimize motor driving characteristics.

Shares an active switch between the buck-boost converter and resonant inverter to reduce switching losses.

A baseboard management controller updates fan parameters using separate temporary storage regions for validation.

Electronic controllers manage motor field current and regenerative torque to prevent uncontrolled backspin and fluid drainage during brownouts or phase loss.

A power converter measures load consumption to adjust voltage and current, preventing motor stalling in deep wellbores.

Coded tachometer signals transmit fan identification to the controller, preventing incorrect model installation and ensuring accurate speed control.

A controller masks sensor data when motor rotation and step-up circuit frequencies align, preventing unreliable internal resistance calculations.

A detector transforms motor voltage signals into clear alarm levels for monitor devices.

Transferring polynomial coefficients allows immediate signal reconstruction, eliminating temporal uncertainty and jitter in automation data links.

Control apparatus monitors rotor driver status values to detect foreign object bites in packaging machines.

A motor controller calculates estimated temperature using segmented thermal gradients to update values during shutdown periods.

Motor torque measurement replaces insufficient position-only monitoring to detect switch jamming or breaks without adding complex external sensors.

A bootstrap capacitor powers an open circuit detector that turns off a high side switch when ground connection loss causes unintended load activation.

A vehicle sliding door power assist system initiates powered opening via manual handle pull and brake engagement verification.

A switching device disconnects the TRIAC from mains voltage before a relay activates, creating a parallel conduction path for full power operation.

Control system measures induced voltage after current switch-off to detect mechanical clearance and compensate for wear.

A multi-phase inverter control unit adjusts voltage command values to cancel brake torque from failed switching elements.

A motor position controller stabilizes electric vehicle positioning during stops using backlash compensation.

Camera-based vision system replaces expensive optical encoders, reducing system cost while maintaining high measurement precision.

A wiper system adjusts speed based on camera exposure timing to prevent blade obstruction during image capture.

An electric motor control apparatus detects abnormal phases and disconnects affected circuits to maintain torque output.

Resilient supports compensate for asynchronous motor speeds, eliminating friction points and reducing production costs.

A motor controller calculates a ratio between phase sample data and DC bus data to identify electrical faults.

A co-thermal control system uses a table-based rule generator to throttle CPU and GMCH components based on real-time thermal conditions.

Synchronizing compressor speed and phase increases pulse frequency while reducing amplitude, eliminating the need for bulky mufflers.