Hybrid Vehicles TRIZ Cases

A clutch lets the motor carry the driven load so the engine can stay rich long enough for catalyst-based NOx reduction without load swings.

Starter-based engine startup is paired with motor-driven and electric oil pump pressure to keep hybrid clutch engagement controllable.

A transmission-case-mounted resolver detects motor generator speed without a special interlock, saving space, cost, and assembly effort.

Stable travelling zones with normalized input/output energy let machines detect powertrain component deterioration more reliably across varying loads.

A linked clutch switching device coordinates engine and electric motor drive modes in mobile crushers to prevent incorrect changeover and improve reliability.

Housing the coolant pump in the intermediate case keeps a hybrid work vehicle compact while improving motor cooling, assembly, and cost.

An integrated differential, gearset, clutch, and park lock layout cuts drive module size and weight while preserving torque vectoring capability.

Predicted road events drive critical vs non-critical load classification so limited vehicle power is reserved for essential consumers.

Elastic torque release and speed stabilization prevent meshing tooth clashes during 4WD-to-2WD switching, reducing impact and noise.

A changeover switch bypasses a failed DC-DC converter so the starter generator can keep charging the low- or high-voltage battery.

Real-time obstacle, traction, and curvature sensing sets safe torque limits to avoid false triggering while maintaining vehicle propulsion.

Relay switching isolates and parallels load and starter batteries to prevent voltage drops, controller resets, and lamp flicker in hybrid vehicles.

An electric motor and clutch-coupled reverse gear train let heavy motorcycles back up at low speed without engine interference.

A model-based hybrid propulsion controller balances fuel use and NOx by keeping the aftertreatment system hot and effective.

Temperature-based first-motor torque control limits battery input power during engine cranking while preserving usable vehicle speed range.

A radial stack of the damper, clutch, and actuator cuts axial size while preserving torsional filtration and clean clutch actuation.

Automatic rear drive gear switching uses road and driving mode inputs to balance 4WD torque, handling stability, and drag losses.

An ECU selects the most efficient hybrid powertrain operating point to cut fuel use and store excess power in work vehicles.

Accelerator opening and change rate predict driver intent, helping hybrid vehicles avoid delayed or unnecessary engine starts.

Separate clutch and gear paths let two engines share one output shaft, delivering high torque with lower transmission mass and size.

Magnetically actuated coupling lets a filtering pulley switch smoothly between decoupled and torque-transmitting states to cut noise and shocks.

A work machine battery is held at lower charge for longer life, then raised on request to keep enough power when disconnected.

When engine bearing damage is detected, SOC-based limp-home control limits motor and HSG rotation to prevent further degradation and keep the vehicle moving.

Battery recommendations are matched to vehicle load profiles, environment, and driver patterns to improve life prediction and battery fit.

Altitude and descent-speed prediction lets the battery management system derate regenerative charging to prevent overcharge and vehicle power loss.

A clutch disconnects the stalled engine so the hybrid vehicle keeps moving in electric mode while controlled restart logic avoids battery-draining retries.

Altitude and descent-speed prediction derates battery charge power to prevent regenerative overcharging without cutting vehicle power.

Motor-generator switching thresholds change with work lever input, matching engine assist and power generation to real load demand.

Adaptive logic and learning strategies coordinate hybrid propulsion modes and energy recovery to improve efficiency, emissions, and comfort.

By integrating the hydraulic actuator into the transmission support structure, axial space is reduced while preserving clutch actuation and secure mounting.

Catalyst and turbine temperature feedback limits hybrid engine torque and inhibits stops to reduce fuel dilution in engine oil.

Torque-zone control keeps a hybrid EV in parallel mode near motor torque limits, reducing frequent series-parallel switching and efficiency loss.

Adjustable mount stiffness rigidly links a switched-off engine to the sprung mass, cutting noise and vibration during electric driving.

Lowering the downshift point on slippery roads delays rear-wheel regeneration shifts to curb slip and oversteer while preserving energy recovery.

Separating understeer and oversteer torque maps helps recover longitudinal driving force while improving steering stability and response.

Coordinated motor synchronization, lean-burn restart, and cylinder control cut NOx, fuel use, and torque shock during hybrid engine transitions.

A nested electric machine and planetary gear layout adds up to eight hybrid gears while cutting installation space, weight, and power loss.

Capacitor voltage feedback helps distinguish communication instability from precharge failure, enabling accurate fault determination and repair.

Coordinated fuel injection and motor torque control limits catalyst temperature spikes, suppressing ammonia slip while maintaining battery SOC.

Heat from the charging unit warms the crankcase ventilation path before startup, preventing moisture freezing and blockage in cold regions.

During ABS braking on slippery roads, reverse gear engagement shortens stopping distance while preserving steering and stability control.

Directly mounting rotor shaft bearings in the gearbox and clutch housings cuts space and weight while reducing pinion tilting and NVH.

A compact hybrid drivetrain combines engine and electric motor inputs with a selectable differential to widen traction ratios and cut cost.

Regenerative HVDC bus energy is routed to storage, rectifier, or a reversible generator, removing bulky resistive dissipation hardware.

Combining breaker and relay functions in one PDU cuts weight and complexity while arc suppression protects contacts under variable mobile loads.

Driving-state transitions guide engine-motor power split control to cut battery and fuel use in rapidly changing hybrid driving conditions.

Corrected fuel and energy metrics remove load and elevation bias, enabling fair vehicle and driver efficiency comparison.

Selective valve control lets a hybrid engine keep rotating with lower pumping losses, easing motor, clutch, and gearbox integration.

When generator output control fails, raising engine speed enables HV-to-LV power transfer through a DC/DC converter to keep auxiliary devices running.

Pre-charging the battery during driving prepares electrified vehicles for long stay mode without idle charging, reducing noise, smoke, and engine wear.