Electric Devices TRIZ Cases
- Fuel Cell System Refilling Control via Main Stop Valve
A fuel cell system controller closes the main stop valve before opening the filling port to enable safe refueling.
- Vehicle Battery State Detection Before Relay Power-Off
Controller calculates insulation resistance and voltage deviation before main relay cutoff to monitor battery health.
- Vehicle Power Distribution System with Dual-Bus Redundancy
A vehicle power distribution system uses a switching circuit to transfer energy between two buses operating within a common voltage range.
- Elongated Axle Fastening for Bicycle Motor Hub Assembly
Elongated axle with internal threading secures the motor hub through the frame fork, preventing accidental detachment during maintenance.
- Vehicle Battery Degradation Display Correction Logic
Controller corrects calculated battery degradation levels to prevent unexpected decreases on vehicle displays.
- Battery Operating Parameter Prediction Using Dynamic Model Segmentation
A battery management system predicts permissible operating ranges using a mathematical model that adapts to state of charge and health.
- Wheel Rim Energy Generator for Vehicle Motion Recovery
Nested generators in wheel rims recover motion energy to reduce waste and improve vehicle autonomy without adding external complexity.
- Dynamic Voltage Limiting for Battery Energy Store Safety
A battery management control unit ascertains dynamic charge and discharge voltage limits based on cell voltage characteristics to optimize energy extraction.
- Battery Cell Capacity Determination Using Multi-Point Voltage Segmentation
A method determines battery cell capacity by combining multiple open-circuit voltage and current integration pairs.
- Vehicle High-Voltage Equipment Cooling Fan Airflow Regulation
A vehicle high-voltage system equipment unit integrates a cooling fan and air flow regulating portion to manage internal airflow.
- Transformer-Coupled Regenerative Braking for Energy Recovery
A transformer-coupled electrical braking system converts motor torque into regenerative power via electromagnetic induction.
- Vehicle Power Supply System Backup Switching
Backup controller switches power sources to maintain essential vehicle functions, ensuring safe travel when the main power supply device is abnormal.
- AMR Network Load Balancing via Staggered Response Windows
Staggered response windows distribute meter data transmissions across defined time slots, preventing network overload from simultaneous requests.
- Trailer Tracking Device Coupling Detection and Power Management
A trailer tracking device acquires truck identifiers upon coupling to transmit status messages via wireless networks.
- Hybrid Vehicle High Side DC/DC Converter Thermal Balance Control
A high side DC/DC converter controller adjusts switching frequency to maintain temperature balance between inductors and IGBT elements.
- Traction Battery Fault Mode Operation via Segmented Monitoring
Segmented cell monitoring paths allow the battery management device to isolate faults and maintain vehicle operation instead of triggering a full shutdown.
- Vehicle Battery Pack Offset Exhaust Ports
Offset exhaust ports prevent refrigerant interference between opposing cell stacks, allowing narrower spacing and reduced battery pack volume.
- Fuel Cell Auxiliary Power Supply via Dual Battery Segmentation
Segmenting the power supply into a first battery for charging and a second battery for auxiliary machines ensures continuous operation during startup.