Hybrid Vehicles TRIZ Cases

A battery-aware delay before engine start helps hybrid vehicles meet power demand while reducing unnecessary mode switches, noise, vibration, and fuel loss.

Shared model parameters across vehicles improve ML control accuracy when individual controllers lack enough sensor data, memory, and processing power.

A controller switches engine clutch engagement to balance P1/P2 regenerative braking, battery charge power, and engine friction for better fuel efficiency.

Dual surge detection from engine and turbocharger states coordinates engine and motor assist to prevent surge while preserving drivability.

Pseudo engine stall control cuts motor torque and suppresses wheel rotation to mimic manual-transmission stall behavior in EV mode.

Stored rotational energy in the input shaft and torque converter enables hesitation-free hybrid engine starts down to -30 °C.

Driver-specific pedal change rates set an adaptive engine start threshold, improving hybrid power distribution and reducing unnecessary fuel use.

A widthwise motor, reduction drive, generator, and engine layout frees upper space for integrated inverters and engine-related components.

Real-time traffic and stop patterns guide hybrid delivery routes, switching between EV and engine drive to cut fuel use without slowing service.

Electric fan assist and cross-engine power balancing reduce mechanical lag and power fluctuations in geared aircraft propulsion.

By holding the clutch engaged through the shift period and shifting torque from engine to motor, the control reduces shock in HEV-to-EV transitions.

Rotor hub shaft extension and bearings align the input member to stabilize axial balance, simplify assembly, and prevent clutch abrasion.

Selective alternator coupling by battery charge and driving state cuts crankshaft load, fuel use, emissions, and coupling jolt.

A timed hold on remote AC prohibition lets the vehicle start climate control before shift recognition settles, improving user convenience.

Forecasted battery and fuel cell damage guides power split control in a hybrid drive to balance wear and extend component service life.

A radially nested dual-motor layout fits coaxially with the engine, saving vehicle installation space while preserving drive and starter functions.

Intelligent switching between swappable battery and range extender helps hybrid vehicles reach destinations and nearby refill points reliably.

An electric machine loads the engine during cold start to heat exhaust aftertreatment faster while charging the battery and reducing energy loss.

A clearance and dual radial bearings isolate input-shaft deflection, cutting fitting wear and enabling smaller outer bearings in hybrid drives.

A three-shaft clutch layout enables more EV transmission gears, flexible power flow, and shorter shifts without increasing package length.

A side-by-side engine and generator layout raises series hybrid motorcycle output while limiting frame growth and wheelbase increase.

Weld seams on rotor tooth faces restrain lamination movement during press-fitting, improving balance quality and rotor life.

Cold-start control uses catalyst temperature, engine load, and battery state to cut hybrid engine emissions without extra fuel burn.

When GNSS accuracy drops, visual detection of low emission zone boundary signs helps hybrid vehicles avoid wrong engine operation decisions.

On-vehicle wind turbines generate electricity during driving to recharge EV batteries and reduce charging stops without a larger battery.

A one-piece front-cover connector fits within the rotor carrier to stop piston contact and maintain torque converter sealing.

A projecting portion locks the battery pack insulation sheet in place, preventing drop-off under vibration while limiting heat from the underbody.

A two-stage MPC splits long-horizon route planning from short-horizon tracking to improve fuel use, comfort, and driving time.

An intermediate gear enables non-coaxial power transfer, cutting engine-generator spacing while avoiding generator-transmission interference.

A dual-motor clutch layout improves power retention by splitting drive and generation roles while enabling multiple hybrid running modes.

Pre-calculated speed rise and power limits curb wheel-slip torque spikes, protecting the traction battery from overload.

By nesting a hydrostatic actuator within the damper, this clutch cuts axial space while isolating torsional vibration and preserving torque capacity.

Distributed model updates across vehicles improve control accuracy for battery, engine, and diagnostic functions without overloading onboard controllers.

Shift-based power generation thresholds keep regenerative deceleration consistent in a series hybrid vehicle when the battery reaches full charge.

When battery output drops near engine-start demand, control inhibits engine stop to avoid restart shock while limiting extra engine run time.

Tracks how often poor energy-efficiency driving occurs after specific operations, helping drivers and managers improve vehicle energy use.

A driveshaft-coupled electric assist with regenerative braking boosts vehicle power and recovers braking energy without invasive drivetrain changes.

Torque control of the engine-side motor tracks transmission input acceleration during shifts to cut dual mass flywheel shock and clutch stress.

Real-time temperature, voltage, and current monitoring lets the PDU adjust loads and keep autonomous vehicle power use within safe limits.

Dual stator and rotor inverters adjust electrical slip through slip rings, improving power distribution in series hybrid drivetrains.

Manual EV and hybrid mode switching in a parallel powertrain helps cut fuel use, avoid frequent engine starts, and improve power response.

Pre-gear shifting to second gear avoids synchronizer speed-limit failures, enabling reliable high-speed hybrid mode transitions.

Electric machine torque and engine speed are synchronized in a planetary gearset to lock components without clutch friction, wear, or torque interruption.

Corrective torque is assigned to the engine or motor based on battery state and drivetrain conditions to suppress transmission jolts.

Pre-motoring the engine at lower battery SOC in B range avoids full charge, preserves stronger regenerative deceleration, and reduces driver discomfort.

Series-connected inverters and one step-up/step-down circuit per axial gap motor equalize regenerative current and improve battery charging efficiency.

A battery housing and upper connector support silent electric propulsion in military vehicles, cutting noise without losing reliable drive power.

Torque converter oil is diverted to cool the electric machine and separable clutch, improving cooling with less system complexity.

Two electric motors and a planetary gearset coordinate torque delivery across driving modes while reducing NVH in an electrified powertrain.

Targets the compression-stroke cylinder and schedules fuel injection from crank speed to restart an engine smoothly during deceleration.

A cylinder injection valve control device permits deposit removal when fuel pressure and engine load are high.

A control apparatus for automatic transmissions inhibits engagement start determination during mode switching to prevent erroneous load variation assessment.

A hybrid powertrain control system selects an autostart process to crank and fuel the internal combustion engine based on desired input torque.

Independent flow control valve supplies additional coolant to the engine clutch cooling channel during hybrid vehicle operation.

An engine controller manages catalyst warm-up by setting a predetermined output value until air intake integration reaches a target threshold.

Electronic control unit activates engine charging via motor generator before traffic slowdowns detected by GPS, reducing engine wear during stop-and-go driving.

Segmenting aggregated cloud data by speed ranges maintains reliability while enabling accurate catalyst heating control before high-load driving conditions.

Integrating an electric motor into the torque converter housing eliminates separate cooling systems and reduces vehicle complexity.

A motor coil of an electric oil pump heats transmission oil before vehicle startup to reduce viscosity.

A hybrid electric vehicle positions a steering gearbox between an internal combustion engine and a motor-generator to optimize component placement.

A vehicle power generation control system manages electrical output while preventing unauthorized driving.

A controller increases torque converter clutch engagement pressure before regenerative braking events to maximize mechanical energy transfer.

A hybrid machine battery controller calculates target rotational speed commands to manage electrical storage.

Controller selects virtual gears to coordinate engine and motor speeds, meeting driver expectations for torque changes without mechanical shift shock.

Interleaved busbar packages reduce parasitic inductance in high-frequency DC bulk capacitors.

A hybrid drive user interface adjusts the display area and scale divisions for the state of charge variable based on the operational mode.

A vehicle control device manages brake hydraulic pressure to prioritize stability control over regeneration enhancement.

A one-way turbine clutch decouples the torque converter turbine wheel from the transmission input shaft to prevent counter-rotation.

Alternating fixed and elastic narrow insertion parts suppress vibration damage while maintaining smooth path insertion workability.

Central underbody part uses interchangeable interface elements to support thermal and electric motorizations, eliminating separate base complexity.

A coaxial electric machine arrangement integrates with a transverse differential input shaft to optimize weight distribution and installation space.

A turbogenerator system manages electrical output by switching between direct generation and supplemental motor power.

Mechanical synchronizers replace hydraulic wet clutches in hybrid transmissions, simplifying manufacturing while maintaining torque delivery.

A control apparatus interrupts current flow to an inverter when power-supply voltage drops below a first threshold and releases the interruption after recovery.

A torque precision look-up table corrects output deviations in hybrid vehicle power sources.

A controller uses satellite positioning to dynamically adjust power output between multiple sources in a vehicle.

A hybrid braking system measures pedal parameters to limit electrical energy recovery during operation.

Master battery management system generates synchronization start signals to coordinate slave timer operations.

Dynamic state of charge management reduces degradation during inactive periods to extend operational lifetime.

A hybrid vehicle control apparatus synchronizes engine and transmission speeds to minimize mode transition time.

A control device estimates insulator temperature before vehicle power-on to determine electrical heated catalyst power feed allowance.

Ring gears drive output shafts to reduce sun gear size and bearing load in compact power plants.

Dual pressure regulating valves manage clutch engagement and motor cooling, resolving device complexity while maintaining precise control.

Multiple electric superchargers in a hybrid vehicle maintain battery state of charge during high-load driving by dynamically switching operation modes.

A hybrid drive control device uses predictive speed regulation to optimize kinetic energy utilization for improved fuel efficiency.

Dynamic voltage control prevents excessive charge cycles in energy storage devices, reducing volume requirements and minimizing energy loss.

Electric motor drags internal combustion engine to generate exhaust gas flow, heating catalyst and reducing nitrogen oxide load before activation.

Dynamic engine control logic adjusts start-stop sequences to balance battery charging needs against fuel consumption during acceleration and braking events.

A control device adjusts the theoretical charging state of a hybrid drive charge storage unit to maintain permissible energy levels across operating modes.

A controller classifies route segments using fuzzy rules to manage traction battery state of charge.

A motor speed control method adjusts transmission input and output speeds to synchronize vehicle motion during neutral gear testing.

A hybrid controller predicts torque reduction needs and redistributes power between the motor and engine before gear shifts occur.

A hybrid vehicle drive system predicts power demand and operating modes based on upcoming road topology to optimize energy storage levels.

Replacing diesel power take-off gear with an electric drive unit reduces travelling drive power loss.

An independent two-speed transmission isolates the electric machine from gearbox inertia, resolving efficiency trade-offs during vehicle acceleration.

Unified reduction factor coordinates engine and motor torque, resolving memory complexity and battery overcharge risks.

Coolant contacts dielectric cell coatings in pockets to reduce thermal resistance and improve heat transfer.