Hybrid Vehicles TRIZ Cases

Low-speed stop-start inhibition uses speed thresholds and a restart timer to cut occupant disturbance and starter wear in hybrid vehicles.

A sleeve-based switching mechanism lets a hybrid PTO motor drive the vehicle or mounted equipment while preserving PTO function and fail-safe operation.

An integrated P2 module combines disconnect and electromagnetic clutch functions to cut package size while preserving engine decoupling.

A wet-running multi-disc brake in the drive torque path cuts service-brake noise and fine dust while preserving emergency braking safety.

By detecting passenger rest needs, the controller limits engine cycling and electronics load to cut noise, vibration, and battery SOC loss.

Adjusts cruise acceleration and deceleration using DTE and charging-station distance to conserve battery charge and boost regenerative braking.

A time-varying test torque updates the engine economic curve in a series hybrid to match real vehicle conditions and cut fuel use.

A shared rotation shaft drives the coolant pump, cutting hybrid powertrain parts, weight, and energy loss while cooling the electric machine.

A coaxial engine-motor layout removes intermediate gears, shrinking hybrid transmission height while preserving flexible clutch-based power paths.

Dynamic start-stop temperature thresholds keep a hybrid engine warm longer, cut frequent restarts, and extend practical EV mode operation.

Brake temperature feedback disables freewheeling when a full battery forces friction braking, helping preserve deceleration control and operability.

A dedicated auxiliary ECU requests DC-DC converter voltage independently, improving low-voltage component protection and control flexibility.

Predictive wheel slip limits and road friction data guide multitrailer motion control to improve handling and reduce energy waste.

Different torque maps let the engine provide cabin heat in cold, low-load driving while limiting battery drain at high SOC.

Opposing axial motion in coaxial helical gears shifts tooth contact under thrust, reducing localized wear, vibration, and rattling noise.

Residual-value comparison across the engine, motor, and clutch adjusts clutch engagement demands to limit clutch wear and preserve vehicle value.

By moving the main battery below the truck bed floor, this pickup truck layout creates large-capacity battery space without crowding underfloor components.

A radially outer engagement drive source and axial transmission member free layout constraints while enabling precise hybrid mode switching.

A controller monitors driving state and keeps the engine clutch open under fault conditions to prevent unintended engagement and preserve vehicle stability.

A mode control valve switches shared hydraulic flow between stator cooling and transmission lubrication to cut churning losses across speed modes.

A stacked motor and PTO shaft layout in the rear housing simplifies multi-output power delivery while improving compactness and vehicle stability.

Remote air conditioning preheats a parked vehicle battery to its charging temperature, cutting charging time and avoiding excess energy use.

A dual-mode driveline lets a military vehicle shut off the engine, drive traction and FEAD electrically, and cut sound output for stealth.

An electric machine adds a temporary impulsive torque profile during dual-clutch shifts to avoid acceleration holes and restore a sharper shift feel.

A 14-DOF vehicle model and 3D piecewise-affine tire control improve in-wheel EV stability and ride comfort under magnetic force disturbances.

A single planetary gear and stepped transmission cut tooth engagements in electric driving while keeping the hybrid powertrain compact.

Gradual engine torque shaping and motor compensation keep hybrid drive force responsive while limiting air-fuel ratio disturbance and emissions.

Offline runtime data splits allowed control functions across trigger instances to prevent controller overload and skipped execution in hybrid vehicles.

An electrified driveline with battery power, motor drive, and clutch switching enables silent military vehicle operation without losing mission-ready power.

Adaptive generator torque limits raise engine load points while motor slip control prevents vehicle destabilization on low-friction roads.

A five-mode engine-generator and battery powertrain extends electric loader runtime while avoiding deep battery discharge and large charging infrastructure.

Location- and time-based charging starts earlier during parking to keep the vehicle sub battery ready for unexpected returns.

Discrete road-segment matching combines terrain profiles with GNSS to improve vehicle localization while cutting bandwidth and compute load.

Gear mechanisms raise generator speed and reduce motor speed to boost hybrid tractor drive output without enlarging motor-generator cores.

Route-ahead weather, traffic, and subsystem data enable preemptive powertrain adjustments to keep vehicle components within target temperatures.

When battery charge nears its upper limit, this control balances regenerative power and engine fueling to prevent catalyst deterioration.

Fuel is injected when clutch clearance reaches zero, cutting hybrid mode-change delay and reducing shock during engine startup.

Signal injection and onboard learning recalibrate powertrain sensors and control tables in real time for changing vehicle conditions.

Predicted destination confidence guides battery use so a hybrid vehicle can reserve charge for electric-only travel on the most suitable route segment.

Slip-rate prediction compensates clutch and motor communication delays to time engine engagement accurately and protect disconnect clutch hardware.

Offset recesses and groove-formed passages keep transmission components closer together while preserving oil flow area and limiting axial growth.

An electric motor spins the crankshaft before fueling so airflow dries and heats the oxygen sensor, cutting hybrid cold-start emissions.

Predicted battery output limits set a speed threshold for motor travel, reducing hesitation while preserving fuel and emissions benefits.

Route control switches between electric drive and gasoline using energy prices and total CO2 emissions to balance travel cost and environmental load.

Uses torque converter speed-ratio mapping to set target engine start speed, improving motor-assisted starts and fuel efficiency.

Two independent engine-generator units are controlled synchronously or asynchronously to improve series hybrid response, acoustics, and efficiency.

Dynamic battery threshold windows adapt to driving schedules, SoC, temperature, and health to improve EV energy use and battery life.

A self-cooling axial-flux motor-alternator hybrid cuts battery mass and cooling drag while maintaining reliable electric aircraft power.

Two independent engine-generator assemblies let a series hybrid balance efficient cruising with stronger acceleration and more engaging sound.

Two independent engine-generator units let a series hybrid balance sporty road feel, torque delivery, and constant-speed efficiency.