Drum Brakes TRIZ Cases
- Hub Motor Integrated Brake for Fail-Safe Parking Hold
A spring-biased electromagnetic brake built into the hub motor holds the sled at standstill without separate brake hardware and engages on power loss.
- Brake Actuating Angle Sensing for Freight Wagon Wear Monitoring
Gravity-based angle sensing on the brake actuating element tracks lining wear and brake function without costly sensors on each lining.
- Integrated Hub Motor Brake for Compact Fail-Safe Parking
A spring-biased brake inside the hub motor eliminates separate parking hardware while holding a delivery sled at standstill when power is lost.
- Drum Brake Wear Monitoring via Adjuster-Shaft Movement Sensing
Relative movement between the adjuster and shaft is sensed to track drum brake friction wear without disassembly or manual inspection.
- Electric Drum Brake Clearance Control for Thermal Drag
Estimated drum temperature sets brake lining clearance after release, preventing thermal brake drag and stabilizing braking.
- Drum Brake Wear Sensing Through Adjuster-Shaft Relative Movement
By sensing adjuster-shaft movement instead of the full brake stroke, this case tracks drum brake friction wear with fewer sensors and higher precision.
- Press-Slip-Fit PMG Brake for Short-Circuit Fault Stopping
A solenoid pawl and press-slip-fit sleeve brake a permanent magnet generator to zero speed after short-circuit faults.
- Cable-Pull Parking Brake Release via Motor Current Feedback
Motor current monitoring stops cable-pull brake release at the right point, avoiding residual torque while keeping release fast and reliable.