Hybrid Vehicles TRIZ Cases

Switching transmission speed modes and motor assist boosts hybrid acceleration without requiring a larger motor or battery.

A dual engine-start strategy shifts combustion timing by torque demand to limit hybrid vehicle vibration without delaying response.

Accelerator pedal change rates are used to learn driver habits and adapt engine-start thresholds for better hybrid power response and fuel economy.

By presetting rotor position and injecting d-axis current while parked, the drive motor heats a cold traction battery without a separate heater.

By raising line pressure before clutch engagement and switching to a flywheel starter when needed, this case stabilizes hybrid engine starts in creep mode.

A low-mounted water pump and shared motor radiator improve coolant circulation in hybrid ATVs, reducing motor heat buildup and service-life risk.

During bump climbing, coordinated motor torque and center LSD clutch control reduce yaw moments and preserve straight-line stability.

When battery charge limits or faults are detected, derated traction control cuts depletion rate and preserves enough EV range to get home.

A knock index guides lower engine speed and higher torque in hybrid charging, cutting noise while keeping knocking within limits.

Battery remaining detection is used to calculate and notify the maximum available hybrid generator output for external loads.

Generator torque is reduced as engine speed passes a threshold to limit gear lash crossing noise during hybrid engine starts.

A vehicle controller detects torque error and adds supplemental torque from efficient sources to balance performance, fuel use, and emissions.

A rotor hub with an integrated torsional damper cuts clutch shock and axial length while direct ATF passages improve cooling and lubrication.

Separate transmission paths let a vehicle power unit drive only needed pumps while maintaining lubrication when one drive source stops.

Maintaining battery charge headroom lets an electric trailer sustain regenerative downhill braking and avoid friction brake overheating.

A doubly fed machine paired with a permanent magnet motor decouples propeller speed from turbine rate while cutting mass and energy losses.

A model-based LQI speed profile synchronizes engine and shaft speeds faster, cutting NVH and enabling earlier disconnect clutch closure.

An energy storage system and electromagnetic drive let the fire vehicle power axles and pump for quicker airport emergency response.

Engine coolant heat exchange warms a low-temperature hybrid battery based on SOC and output thresholds to prevent output loss during EV travel.

Automatic battery and engine-generator switching removes dual transmissions, improving low-speed efficiency while cutting fuel use and emissions.

An engine-driven second motor generates electricity during hybrid driving, helping maintain battery charge and preserve pure electric mode.

A constant-speed engine generator and battery share motor supply to avoid dual transmissions, improving low-speed efficiency and cutting fuel use.

Offset magnetic air gaps in rotor salient poles cut powered torque ripple and cogging torque without reducing motor torque in EVs.

Active torque from the electric machine raises accessory belt tension during engine start-up to prevent slip, noise, and premature wear.

A hybrid vehicle uses the motor first for ESP interference torque, improving response speed and accuracy while keeping the engine near its optimal point.

A control pulse and induced voltage detect rotor direction without a resolver, while a torsional damper limits motion and helps prevent engine damage.

During vehicle charging, the engine drives a generator to power the air conditioner, preserving battery charging and cabin temperature control.

A coaxial motor, nested planetary gears, and dual synchronizer clutches cut transmission size and NVH while preserving EV launch performance.

Predictive standby control cuts inverter quiescent current in hybrid driving while pre-activating for fast torque response.

Remote smart parking blocks unnecessary hybrid engine starts until occupant entry, reducing noise, exhaust, and fuel use.

A four-node planetary gear set decouples motor speed from road speed, expanding HEV operating modes and improving efficiency and range.

Route sections with missing look-ahead data are handled by preplanning mode assignment and continuing EV distance calculation without mode switching.

A threshold-based engagement control limits differential action in a planetary AWD drive to prevent opposite output torques and improve transmission reliability.

Selective heater control uses aftertreatment temperature and exhaust data to cut NOx while avoiding wasted energy and overheating.

An axial liquid supply path through a facing member reduces coolant pipe protrusion and helps miniaturize rotary electric machine assemblies.

Real-time prediction of inertial and pressure torque lets a hybrid controller issue reverse torque commands without full engine control variables.

Electric power sharing and active clearance control keep turbine blade tip clearance stable during rapid acceleration and thermal growth.

Fuel cut during turbocharged excess torque keeps series hybrid power generation within receivable limits and prevents abrupt engine speed rise.

A BSG motor applies preset torque to drive the engine before combustion, cutting launch delay and improving vehicle start control.

A single dog-clutch links odd and even gear paths to smooth hybrid transmission shifts while cutting clutch count, size, and cost.

A coaxial engine-motor layout lets the motor both drive the shaft and recharge the battery, improving UAV energy use and backup power.

By holding the engine on after heating requests end, this case cuts frequent HEV mode switching, alarms, and driver distraction in cold weather.

Real-time driver recommendations use personal and vehicle operating data to cut emissions by shifting speed, cabin settings, and hybrid power flow.

By modulating clutch engaging force from transmission speed difference, this case recreates natural vehicle creep without torque-converter slip loss.

Filters motor torque using engine response and total torque gradient limits so a hybrid vehicle stays within DCT constraints and drives smoothly.

Mounting the shift operation unit outside the transmission case frees vehicle space, simplifies power transfer, and reduces vibration.

A nested coaxial clutch layout and connection plate shrink transmission packaging while preserving large-diameter starting clutch efficiency.

Engine operation for GPF heating is allowed only when soot buildup and driver intent conditions align, avoiding unexpected noise and vibration.

By placing the engine, drive motor, and generator on one gearbox side, this layout cuts axial length and fits tighter vehicle packaging.

Dynamic switching between electric and mechanical transmission boosts low-speed torque while preserving ski groomer efficiency at higher engine speeds.

A hybrid vehicle control system shifts operating modes using a power split mechanism and controller to manage torque delivery during propulsion.

A hybrid powertrain uses a fuel cut mode to provide propelling torque via an electric motor during acceleration.

Control system limits oxygen occlusion during motoring to prevent NOx discharge and ensure efficient emission removal after startup.

A charging system moves a motor rotor to a reference position before power delivery to balance phase inductances.

Concentric motor and engine input shafts with a center synchro enable direct coupling without an intermediate clutch mechanism.

A cruise control apparatus manages intermittent operation mode transitions through integrated accelerator opening degree analysis.

A scroll vacuum pump with a secondary backing enclosure reduces energy consumption by maintaining low pressure for efficient kinetic energy recovery.

Segmenting autonomous driving simulations into common and variant phases reduces computational redundancy while maintaining testing coverage.

A dual input shaft hybrid transmission system with planetary gear sets and motor/generator integration.

A hybrid drive assembly manages battery charge levels through a coaxial electric machine that operates as both motor and generator.

Auto-seek connector aligns vehicle to grid using sensors and electric motors, eliminating manual plug-in tasks.

Closed-loop control system manages multi-mode transmission clutch states.

A hybrid drive module integrates a torsional vibration damping arrangement with phase shifters to smooth torque transmission.

Navigation-based prediction anticipates driver actions, allowing the electronic control unit to pre-spool the turbocharger and reduce lag.

An electronic control unit switches off-road vehicles to electric mode using navigation and sensor data.

A vehicular charging system switches between constant power and constant voltage modes based on battery state of charge.

A controller adjusts spark timing based on residual gas amounts to manage peak cylinder pressure in reciprocating engines.

A unified cooling apparatus combines water and oil circuits through a heat exchanger to resolve complexity trade-offs while enhancing motor reliability.

A charging control apparatus executes intermittent open circuit voltage measurements to optimize secondary battery cycle characteristics.

Motor generator bridges torque gaps in dual clutch transmissions to eliminate clutch burning and energy loss during rapid gear shifts.

A hybrid control system manages engine autostart torque via electric traction motor over-modulation routines.

Rotating wet clutch plates with a motor generator warms cold oil, reducing viscosity and eliminating shift shock during gear engagement.

A hybrid vehicle controller adjusts clutch hydraulic pressure setpoints to manage torque transmission during stationary operation.

A parking lock actuator engages the drive train after an electric machine reduces vehicle speed using regenerative braking.

Segmented coolant cavities within stacked frames direct fluid flow through power stages to resolve overheating in electrified vehicle assemblies.

Asynchronous PWM control shifts pulse timing to balance output voltages near zero crossing.

Electric machine accelerates internal combustion engine to ignition speed using friction clutch engagement.

Hierarchical speed range management prevents component failure by dynamically adjusting powertrain operating limits based on real-time sensor feedback.

Planetary gear dog clutch assemblies select multiple drive ratios to reduce packaging volume and weight in electric powertrains.

A vehicle control system restricts electric power to an upper limit before clutch engagement.

A vehicle control device executes engine charging to extend the permissible unattended period for auxiliary battery supply.

A hybrid control unit calculates all electric range to trigger catalyst heating during charge depleting mode.

Calibrates hybrid vehicle traveling direction using torque-based distance differences to prevent abnormal acceleration from sensor failure.

A control circuit predicts battery voltage behavior using internal resistance and charging-discharging current to limit power delivery.

PID control synchronizes MHSG RPM with target gradients to stabilize engine speed and reduce noise during hybrid vehicle restarts.

A vehicle control system manages air intake during fuel cut to suppress catalyst odor while maintaining engine idling stability.

A hybrid multi-mode power take-off system integrates torque from an internal combustion engine and two reversible electric machines.

Hybrid powertrain system accumulates energy in the battery during trips using an opportunity charging mode to extend electric range.

Controller adapts power generation limits to coupling states, resolving energy loss during high-performance driving modes.

A hybrid vehicle control device selects a sound and vibration prioritizing startup mode to crank the engine using a motor.

Controller segments high power and high energy batteries to resolve the trade-off between discharge capability and operational range in hybrid vehicles.

A method determines internal combustion engine state by analyzing operational metrics like start counts and oil temperatures.

A hybrid power control system stabilizes engine rotation speed using a first motor as a generator before engaging the clutch.

Discontinuous pulse width modulation reduces switching losses by holding one inverter switch constant during each sector period.

Longitudinal core recesses channel cooling fluid through the stator assembly, reducing thermal resistance compared to indirect air or water cooling methods.

Dynamic hysteresis lines adjust mode change thresholds based on stable driver demand power, preventing frequent engine activations during fluctuating loads.

Controller compares component and fluid temperatures to detect low lubricant levels, preventing overheating without mechanical sensors.

A vehicle drive device fixes the planetary gear ring gear to the housing case to stabilize oil distribution within the power transmission mechanism.