Electric Devices TRIZ Cases

A fuel cell system controller closes the main stop valve before opening the filling port to enable safe refueling.

Controller calculates insulation resistance and voltage deviation before main relay cutoff to monitor battery health.

A vehicle power distribution system uses a switching circuit to transfer energy between two buses operating within a common voltage range.

Elongated axle with internal threading secures the motor hub through the frame fork, preventing accidental detachment during maintenance.

Controller corrects calculated battery degradation levels to prevent unexpected decreases on vehicle displays.

A battery management system predicts permissible operating ranges using a mathematical model that adapts to state of charge and health.

Nested generators in wheel rims recover motion energy to reduce waste and improve vehicle autonomy without adding external complexity.

A battery management control unit ascertains dynamic charge and discharge voltage limits based on cell voltage characteristics to optimize energy extraction.

A method determines battery cell capacity by combining multiple open-circuit voltage and current integration pairs.

A vehicle high-voltage system equipment unit integrates a cooling fan and air flow regulating portion to manage internal airflow.

A transformer-coupled electrical braking system converts motor torque into regenerative power via electromagnetic induction.

Backup controller switches power sources to maintain essential vehicle functions, ensuring safe travel when the main power supply device is abnormal.

Staggered response windows distribute meter data transmissions across defined time slots, preventing network overload from simultaneous requests.

A trailer tracking device acquires truck identifiers upon coupling to transmit status messages via wireless networks.

A high side DC/DC converter controller adjusts switching frequency to maintain temperature balance between inductors and IGBT elements.

Segmented cell monitoring paths allow the battery management device to isolate faults and maintain vehicle operation instead of triggering a full shutdown.

Offset exhaust ports prevent refrigerant interference between opposing cell stacks, allowing narrower spacing and reduced battery pack volume.

Segmenting the power supply into a first battery for charging and a second battery for auxiliary machines ensures continuous operation during startup.

Plastic composite with long reinforcing fibers forms the battery pack case body and side brackets, reducing weight while maintaining structural stiffness.

A power monitor uses a current regulating element to adjust transformer output for accurate energy measurement.

Rearranging the electric oil pump and tank between the motor and tie-rod enables reliable cooling during reverse motion.

A ThMn12 magnetic material uses yttrium to stabilize the crystal phase and enhance coercive force.

A control module determines battery state of health by measuring minimum voltage output during motor actuation.

A battery cell short circuit detection device monitors terminal voltage, inflow current, and storage rate to identify internal faults.

Placing the converter in the motor case separates it from the battery, preventing user access during demounting and reducing high voltage line length.

A high-voltage interlock system generates alternating current signals to detect circuit faults through impedance changes.

A fuel cell system adjusts voltage conversion to recover poisoned electrode catalysts while maintaining stable output power.

Controller actively discharges electrical bus to reduce voltage magnitude difference before contactor closure.

A switchable bias voltage applied through high impedance resistors enables precise isolation resistance measurement.

A thermal compensation system manages electrical energy storage device temperatures to maintain optimal operating conditions.

Diagonal brace in hollow beam diffuses welding heat from collar joint, maintaining strength while reducing upper plate weight.

Anisotropic material channels heat away from vents to protect sensors, resolving the trade-off between detection reliability and device damage.

A vehicle battery temperature control device uses a heat exchanger to transfer thermal energy between separate airflow streams.

A segmented pantograph linkage uses a hydraulic cylinder and spring to erect the bottom frame, rotating the top frame upward to expand the collector shoe range.

Sputtering walls onto sacrificial rails defines high-resolution micro-channels, simplifying fabrication complexity.

A self-powered power sensor adjusts its duty cycle to manage heat dissipation during autonomous operation.

Front-rear overlapping connector arrangement absorbs external forces to protect high-voltage connections without adding protective members.

Calculates toggle counts from load and unload vectors to estimate power dissipation, preventing thermal hotspots caused by unbalanced scan chains.

A brake booster valve arrangement modulates fluid pressure between chambers to amplify rider input force.

Bus bar notches in a control module prevent airflow interference, maintaining lateral cooling efficiency while stacking components vertically.

A high-voltage battery quick release system mechanically and electrically disconnects the battery pack from the vehicle chassis.

A motor torque control device adjusts output torque based on driving wheel rotating speed to maintain vehicle stability.

Anomaly detection system processes vehicle sensor signals using dynamic correlation groups to identify faulty data sources in real time.

A composite wall with a cellular rubber mesh accommodates longitudinal separation during impact, preventing cable exposure and electrocution risks.

A work vehicle management system chronologically diagnoses battery deterioration trends using statistical processing of temperature and charge data.

Parallel resistors and a blocking diode enable out-of-charge defect detection on vehicle control signal lines, avoiding charging interference.

A flying capacitor with parallel cancellation switches adjusts capacitance to measure ground fault resistance in insulated DC power supplies.

Segmenting the hub motor into detachable rotor and stator units allows service without removing the wheel, resolving repair access constraints.

Tapered tires and a slip clutch dissipate torque loads to enhance ruggedness while maintaining compact size.