Torque Ripple Control TRIZ Cases
- Electric Motor Torque Ripple Cancellation via Harmonic Projection
Projection matrices cancel first and second ripple harmonics to suppress vibration and noise.
- Torque Ripple Compensation in PMSM Motor Control
Decoupled current regulation minimizes torque ripple and NVH issues by ensuring zero steady-state tracking error across operating conditions.
- Sensorless Electric Power Steering Motor Control via Inductive Voltage Correction
A sensorless electric power steering motor control system corrects the estimated electrical angle using inductive voltage feedback.
- Brushless Motor Drive Duty Ratio Control for Sensorless Timing
A brushless motor drive device restricts pulse voltage duty ratio to stabilize energization mode switching timing.
- Inverter PWM Control for Three-Phase Motor Duty Ratio Correction
Duty ratio correction maintains voltage waveforms by redistributing differential ratios across phases, eliminating motor current ripple and torque fluctuations.
- Speed Regulator for Rotary Electrical Machine Gear Synchronization
A speed regulator uses a cascaded integrator with gain to control rotary electrical machine dynamics.
- Brushless DC Motor Control Device Ripple Current Management
A motor control device estimates ripple current to switch between balanced and unbalanced drive modes for stable rotor position detection.
- Rotating Machine Control Apparatus Harmonic Current Superimposition
Superimposing specific harmonic currents converts higher-order electromagnetic forces away from resonant modes, reducing noise in rotating machines.
- Multi-phase Motor Pole Adjustment via Interleaved Power Converters
Interleaved power converters dynamically adjust motor poles and phases, eliminating redundant current sensors and reducing power losses.
- AC Motor Control Voltage Saturation Handling
Voltage saturation determination unit reduces axial gain to stabilize electric power steering systems against torque ripple and noise.