Hybrid Vehicles TRIZ Cases

Charging-time prediction and SoC-based thermal adjustment bring vehicle batteries to efficient charging temperature while avoiding unnecessary power use.

A motor-generator nested inside the transmission pump support adds hybrid drive without increasing transmission size or vehicle packaging space.

A driver-selectable creep mode uses engine disconnect and torque coordination to support low-speed maneuvers in vehicles without torque converters.

Temperature-based pump and valve control adjusts oil flow separately for the HEV engine clutch and motor to prevent overheating.

Engine speed threshold control preserves brake vacuum generation while avoiding gear tooth striking noise during hybrid engine state changes.

By routing EV-to-hybrid-low shifts through hybrid-high mode, the controller starts the engine earlier and avoids clutch shock and drive force dips.

A hollow-shaft differential and actuator arrangement add hybrid drive and torque vectoring with less space and fewer driveline modifications.

A controllable DC link switch isolates the battery during high-speed operation, letting generator boosting raise motor power without ESS stress.

Road-preview control adjusts reductant injection and engine-out NOx to balance SCR ammonia storage, slip, and DPF soot before engine shut-off.

Shift control uses target speed, battery SOC, and regenerative braking limits to cut unnecessary shifts and improve hybrid deceleration.

A common control module detects engines, batteries, or fuel cells and normalizes output to cut emissions and machine complexity.

A selective coupling and multi-gearset layout lets electric and hybrid units run independently or together for better torque management and lower motor size.

Battery-aware engine-on holding in CS mode cuts restart frequency and improves fuel efficiency in hybrid EV running control.

Predicted and real-time internal resistance are combined to set battery charging power limits and prevent rapid voltage oscillations.

A solid-state HV switch preheats the after-treatment system before engine start, cutting cold-start emissions and warm-up delay.

Segmented spray pipes, an oil guide, and an oil dam improve stator oil distribution to prevent hot spots and reduce oil waste.

Power is split between body-side and in-wheel motors by demand, cutting motor and battery weight while preserving vehicle driving force.

A dry separating clutch uses a pressure channel through the torque converter to cut space, cost, and power losses in vehicle drivetrains.

A crankcase-integrated hybrid transmission layout cuts power unit width, simplifies lubrication, and reduces cover vibration noise.

Hydraulic rotor shifting and clutch decoupling isolate the electric motor from the shaft so engine propulsion can continue without back-driving.

Angle-based friction switching engages large hysteresis only when needed to suppress torsional shocks and protect damper components without hurting drivability.

A centrifugal clutch and roller freewheel simplify parallel hybrid shifting, enabling pure electric drive and lower conversion losses.

An electric actuator and cam sequence switch ratio stages and parking lock while preventing accidental engagement and lowering release force.

Overlapping rotor support and accommodation portions enables pre-compressed elastic members to be assembled more easily while maintaining noise control.

A friction-disc and cover-plate positioning structure restrains radial damper shift from uneven cone spring force, preserving flywheel alignment.

Electric machine speed control limits unnecessary circuit switching in transmission hydraulics, stabilizing pressure and reducing energy waste.

An overlapping input plate layout blocks rusty water from reaching friction material, keeping the damper torque limiter operating properly.

Switchable hysteresis torque in a hybrid powertrain damper preserves attenuation while avoiding torque instability during engine standby.

A rubber-metal gasket controls Kd/Kst and spring constant to cut vibration and noise transmission while maintaining sealing performance.

Oblique helical teeth on a ribbed transmission belt cut noise and wear while maintaining torque transfer at hybrid-engine belt speeds.

Matching shift drum rotation to gear rotational energy enables smoother ratio changes with lower wear, shock loads, and impulse loads.

Shared through holes let one inertia ring fasten both the plate and torque transmission member, cutting assembly cost while keeping secure attachment.

A hybrid gearbox adjusts star carrier speed to enable no-load start-up, output speed synchronization, and lower train system complexity.

A timing-cover-mounted accessory drive and crankshaft-end electric machine cut hybrid radial size, belt losses, and assembly complexity.

Matching plate diameters removes surplus parts in a torque-limiter damper, cutting material cost and enabling a more compact axial layout.

An external pump-fed cannula feeds oil into a hollow shaft to maintain targeted gearbox lubrication when low-speed oil spray is insufficient.

A ringless planetary reducer uses differing sun-gear tooth counts to deliver compact speed ratios and self-locking that prevents reversal.

Radial drainage grooves discharge water from the friction member interface, stabilizing torque limiter friction in hybrid vehicles.

By limiting rubber Kd/Kst to 2.5 or lower, this gasket improves sealing while damping vibration and reducing noise transmission.

An inner intermediate hub links the torsion damper and downstream torque limiter to save radial space while protecting driveline components from torque peaks.

A raceway-guided pressure piece lets the clutch hold open or closed states without continuous force, cutting energy use to switching only.

Hydraulic flow is scaled to battery current limits so an electric crane arm stays controllable at low charge and avoids overload.

By adding a nested fifth gear stage in the axial gap, this layout raises electric input ratio to about 2.7 while saving space.

Multiple torque sensors and a controller detect propulsion faults early, isolate failed components, and maintain aircraft torque output.

A split hysteresis damper keeps small torque active at idle and adds larger torque only when needed to cut torsional vibration and booming.

A series-parallel hybrid drivetrain uses two electric machines and a planetary gear to decouple PTO speed from the engine in compact tractors.

A restricted rotating member and engaging clutch simplify wheel-motor decoupling, preventing reverse Back-EMF and clutch shock.

A hybrid gearbox and motor-generator adjust speed ratio for no-load turbine start, load synchronization, and lower train-system losses.

Axial placement of the output plate between the flywheel and side plate avoids interference and removes outer-surface cutting to lower cost.