Hybrid Vehicles TRIZ Cases

Torque coordination between the start motor, driving motor, and clutches releases dog clutch baulking without hurting hybrid vehicle drivability.

Actual slip feedback updates transmission pressure maps to correct aging and tolerance errors, keeping gear shifts smooth and precise.

An epicyclic gearset lets the engine and generator run at efficient different speeds without adding powertrain length or extra torsional couplers.

By delaying engine stop after a moving restart with cold oil, this case reduces fuel dilution and preserves engine oil quality in hybrid vehicles.

A demand-based controller shifts load between the engine and electric machine to cut fuel use, noise, and emissions while charging batteries.

Keeps the engine running through warm-up so abnormality diagnosis can occur on time without premature stop-start interruptions.

During refueling, the controller keeps the hybrid engine off by checking gear, fuel intake, and location while managing battery load.

When trailer rotation exceeds a threshold, cruise control adds temporary tractor wheel torque to suppress swing out during low-friction braking.

A controller shifts drive mode, torque thresholds, and clutch engagement to balance engine, motor, and clutch residual values.

Heated airflow prewarms the SCR aftertreatment and shifts engine power modes to improve NOx conversion while limiting ammonia slip.

Controller logic shifts drive mode, power split, and clutch engagement to balance engine, motor, and clutch residual value.

Two electric motors and selective gear locking keep wheel torque continuous during shifts while avoiding torque spikes and synchromesh limits.

By splitting a route section at a home-area motor-driving point, the control plan improves EV-mode use, energy management, and noise reduction.

A dual gear plane hybrid transmission cuts axial length and maintains traction during shifts by routing torque through the electric machine.

During long downhill driving, the battery is discharged via engine-speed control to preserve charge margin and maintain motor torque.

A clutch-controlled hybrid assist layout switches engine and electric power across start, charging, boost, and auxiliary modes without oversized drives.

A counter shaft and smaller counter drive gear shorten hybrid transaxle case length without enlarging the engine-side cover.

A two-axis motor and gear arrangement shrinks one unit dimension while adding torque and giving vehicle packaging more layout flexibility.

Excess idle torque is converted into electrical energy by the electric machine, keeping hybrid engine speed smooth without ignition-timing efficiency loss.

An integrated resistor, switch, and control circuit diagnoses battery degradation from voltage fluctuation without separate test equipment.

Seamless clutch-shifted planetary gearing gives a dual-motor truck powertrain multiple ratios without torque interrupt, improving efficiency and torque.

Dual clutch paths isolate engine-to-motor generation and motor-to-wheel drive, cutting drag losses in hybrid operating modes.

By checking catalyst oxygen storage before fuel-cut motoring, this case enables accurate A/F sensor learning without degrading exhaust performance.

A clutch-controlled motor-generator routes engine and battery power across start, charging, boost, and auxiliary modes in a compact hybrid drive.

Pressure-wave hydraulic conversion turns heat into shaft power with cylinders, springs, and a heat exchanger to cut propulsion noise and emissions.

When low battery charge coincides with unstable engine torque, this case stabilizes the engine operating point so motor charging can recover target charge.

Converts vehicle powertrain power into controlled charging current, enabling remote charging with thermal limits, priority control, and lower costs.

Predictive field maps and in-situ data let a hybrid harvester allocate engine and storage power to cut wear and avoid inefficient reserves.

Charging and refueling certificates add production-related emissions to onboard data, enabling more accurate vehicle emission accounting.

Three speed-based control states cut electric axle drag losses while keeping defined motor connection time in hybrid all-wheel drive.

Stored belt-loss data and speed-based estimation improve torque split between a BSG and second motor to reduce battery power in electrified powertrains.

An ECU locks fuel refilling or limits performance when plug-in charging is neglected, pushing more electric driving and lower emissions.

A shared coolant loop links the battery, powertrain, and cabin climate module to speed battery heating and cooling while cutting thermal system complexity.

Rotational speed sensing enables phase-inverted speaker output that suppresses range extender noise with low delay and higher precision.

Multi-domain route prediction plans section-by-section SOC to keep the engine in efficient ranges, cutting fuel use and frequent starts.

Dual drive pumps and a control valve group stabilize gearbox oil pressure and flow across speed ranges, improving cooling, lubrication, and drivability.

Coordinated ISG and traction motor torque control maintains continuity during hybrid EV gear shifts to prevent sudden acceleration in deceleration braking.

A clutchable second motor and downstream planetary gearing deliver commercial-vehicle torque with lower noise, vibration, and energy use.

During braking, coordinated bleed, throttle, and check-valve control holds fuel cell pressure while compressed air cools the energy resistor.

Directly coupling the reversible electric machine to the secondary shaft avoids intermediate-shaft losses and adds braking support.

A rigid crankshaft-motor coupling and single-plate clutch simplify hybrid torque transfer while smoothing cylinder deactivation jitter.

An ECU overrides gear signals and power-cycles the gear selection module to keep displayed and actual gears aligned during mode transitions.

Predictive cooling prepares the brake resistor before braking, limiting overheating while avoiding fuel cell degradation during power ramp-down.

Maintaining battery charge headroom lets an electric trailer sustain regenerative endurance braking on long downhill runs without losing energy absorption.

A freewheel clutch gear layout supports modular CVT sub-transmissions, helping one power pack fit different vehicle drive requirements.

Deceleration-level control coordinates P0, P1, and P2 motor charging to recover more braking energy and reduce hydraulic braking use.

Feedforward torque compensation in the PCM accounts for converter losses to curb hybrid transmission speed spikes during state transitions.

Predictive battery monitoring links vehicle location with road and facility charging to maintain EV operation when range and charger access are limited.

Predicting shaft torque changes during engine ignition lets the motor apply antiphase correction torque, cutting vibration and improving hybrid EV startability.

A battery-generator and hydraulic hybrid lets material processing equipment run electrically when possible, cutting emissions, oil spillage, and engine use.

A spring-sandwiched terminal structure maintains high contact pressure with fewer parts, reducing thickness, assembly complexity, and cost.

When battery charge is high, catalyst heating uses excess power to lower SOC and restore regenerative braking in hybrid vehicles.

When a stopped engine causes gear wheel phase blocking, clutch engagement and ISG-driven crankshaft rotation restore smooth shifting.

During regenerative braking, this control approach uses the other input shaft and clutch friction to offset deceleration loss during gear changes.

Excess regenerative energy is routed to an electrically heated catalyst to avoid battery overcharge while preserving hybrid deceleration and drivability.

Preceding-vehicle sensing and GPS/IMU position data adjust xEV regenerative braking to recover more energy without overcharging.

Initial friction braking suppresses vehicle pitch, then shifts braking force to regeneration to recover energy without losing deceleration control.

Periodic voltage sampling and comparator thresholds let telematics identify vehicle type and capture cranking events with lower battery drain.