Hybrid Vehicles TRIZ Cases

A clutch and motor-driven reverse drive absorbs shaft inertia after impact, then briefly backs the vehicle to limit damage and recover energy.

A controller prioritizes a high-power battery before a high-capacity battery to handle high current demand while limiting battery deterioration.

Switching a hybrid vehicle to electric drive during rear ultrasonic sensing avoids exhaust gas clouds that can distort obstacle distance measurements.

A locking synchromesh clutch lets a hybrid dual-clutch drivetrain start the engine at low speed while maintaining output power and smooth synchronization.

Battery state-of-charge control limits refuse vehicle accessories to conserve energy and help complete collection routes without interruption.

Intake air restriction and fuel cut reduce exhaust oxygen during lean-to-stoichiometric switching, helping the catalyst suppress NOx blow-by.

Segment-based speed profiling raises speed only where fuel economy impact is lowest, helping autonomous vehicles meet arrival deadlines with less fuel use.

Temperature sensing at both ends of a shunt corrects Seebeck-induced current and SOC errors in energy storage management.

A four-shaft planetary layout with integrated spur gears cuts axial space while enabling flexible hybrid gear ratios and reverse electric operation.

A switchable coupling and locking module synchronizes a gearbox intermediate shaft while cutting drag torque, fuel use, and braking risk.

Differential slip detected by the tractor brake controller triggers trailer electric torque support, improving traction without extra hardware.

A compact retrofit kit couples a high-power electric motor to the transmission, enabling pure EV driving with minimal vehicle changes.

Precharged capacitors and early voltage-mode activation keep the vehicle electrical network stable after traction battery failure.

Delaying motor drive priority cancellation during drive mode changes reduces sudden engine starts and improves transition comfort.

Engine torque and transmission line pressure are adjusted from oil temperature and impeller speed to cool transmission oil during hybrid charging.

Movable magnetic material in stator orifices varies airgap flux to limit back-EMF at high speed while preserving torque.

By placing the PCU above the engine and shaping intake manifold overlap, this layout protects high-voltage cables and preserves rearward engine movement.

Real-time wheel power and brake force adjustment gives drivers finer control of understeer, oversteer, and traction than static drive modes.

Compression at the rolling contact drives a counter-rotating rotor shaft, enabling continuous wheel-integrated power generation with lower battery burden.

Weighted fuel-battery power control cuts fuel source transients in hybrid vehicles, improving real-world efficiency and emissions.

Specific inverter switching states let the ECU estimate battery current from one phase sensor, reducing multi-sensor error buildup.

An integrated electromagnetic actuator lets a filtering pulley decouple on demand while damping torsional vibrations and cutting passive energy loss.

Dual battery-converter channels and switchable DC links keep traction motors powered during electrical faults in wire-free rail vehicles.

Worst-case route cost functions let predictive vehicle control cut fuel use and emissions while maintaining compliance when the exact route is uncertain.

Direction-specific driving-force maps improve EV traction on snow or mud, using gentler reverse control for better rough-road handling.

Radially nested electric machines share axial space while one coolant supply cools both stators, cutting drive unit length without added cooling bulk.

Lean combustion at a low-output standby point keeps a hybrid engine stable, supports acceleration, and avoids battery overcharging.

An analytical voltage calculation replaces complex map-based control to cut electrical losses, fuel use, and computation time in hybrid powertrains.

A supervisory control module coordinates engine and generator speed and torque to smooth REEV power transients while accounting for emissions.

A controller switches among diesel, fuel cell, and battery power to meet zone-specific emissions limits without complex aftertreatment.

A nested inner and outer rotor variator expands transmission ratios while lowering electric machine ratings through selective power-split modes.

Remote operator intervention helps autonomous vehicles handle faults, weather, and detours by detecting issues and adjusting mode or trajectory.

Belt slip is judged from engine and motor speeds, then rechecked after a short wait to allow idling stop without risking restart failure.