General Control Strategies TRIZ Cases
- Fastening Tool Motor Braking for Precise Pin Gripping
PWM deceleration and position-based motor stopping reduce stop-position variation so the pin gripping part can grip pins accurately.
- Die Cushion Press Control with Speed-Current Cascade Feedback
Cascade speed and current control helps a die cushion press track force profiles despite torque changes from inertia, friction, and motor losses.
- Sensorless Motor Control Using Duty-Based Zero-Cross Correction
Duty-based voltage correction compensates low-speed induced-voltage deviation, improving zero-cross detection and stabilizing sensorless pump motor control.
- Blower Motor Hall Sensor Correction Using Induced Voltage Learning
Induced voltage learning corrects Hall sensor position error at low speed, reducing blower motor noise and preserving rotor accuracy.
- Motor Speed Control with Buffered I-Term Limit Reversal Handling
A buffered I-term limit prevents sharp speed drops when motor speed deviation reverses, improving stability and load response.
- Electric Motor Reactive Torque Control for Critical-Speed Vibration
Sensor-driven reactive torque injection suppresses motor vibration at natural frequencies, extending bearing life without mechanical redesign.
- Reactive Torque Injection for Electric Motor Vibration Damping
Sensor-driven reactive torque from a frequency converter suppresses motor vibrations at critical speeds without mechanical redesign.
- Electric Fluid Motor Control for In-Field Flow Characterization
Using speed and torque correlations, the controller estimates flow and sets motor output without costly lab calibration.
- Inverter Slip Frequency Compensation for Motor Speed Accuracy
An inverter control apparatus calculates slip frequency using motor output current and rotor speed to adjust reference voltage parameters.
- PWM Motor Regulation via Dynamic Decay Mode Switching
A PWM regulation method switches between slow and fast decay paths based on sampled current values to maintain precise motor control.
- Servo Gain Ratio Adjustment for Inertia Uncertainty
Sets a smaller gain ratio when actual inertia is unknown to prevent oscillations and maintain stability.
- Motor Drive Tuning via Frequency Response Analysis
Frequency response analysis sets controller gains and filter settings to resolve tuning time bottlenecks while maintaining stability.
- Linear Motor Control via Current Feedback Displacement Tracking
A linear motor control system uses current feedback to convert measured current into actual displacement values for real-time state adjustment.