Gearing Control TRIZ Cases
- Open Hydraulic Assist Circuit for Low-Energy Disengagement
A three-position valve and flow variator cut pump displacement at rest while still allowing hydraulic motor piston retraction.
- Vehicle Transmission Gear Control Using Reinforcement Learning
Reinforcement learning replaces numerous shift patterns by selecting gear stages from driving, road, and driver data to reduce busy shifting and fuel use.
- Automatic Transmission Launch Ratio Selection Across Ambient Conditions
Ambient temperature, pressure, and gradient are used to choose launch ratio, cutting shift map variants across engines and vehicles.
- Vehicle Gearshift Control for Speed Bump Acceleration Timing
Pre-shifting based on vehicle deceleration and road gradient reduces post-bump acceleration delay and gearshift calculation load.
- Motorcycle Shift Sensor Layout for Short Shift Rod Packaging
An integrated shift sensor and link arm detects lever input even with a short shift rod, cutting package size and parts count.
- Motor Drive Torque Stepping for Driver Alertness During Acceleration
Simulated stepped torque and acoustic cues restore perceptible acceleration changes, reducing driver fatigue in smooth-drive vehicles.
- EV Gear Shifting Mechanism With Sliding Sleeve Power Continuity
A sliding sleeve keeps gear teeth meshed during EV shifting, preventing one-way clutch power interruption and stabilizing torque transfer.
- Vehicle Transmission Gear Control Using Speed-Profile Simulation
Multiple gear actions are simulated against a road speed profile to cut fuel use, limit transmission wear, and keep vehicle speed within bounds.
- HST Relief Pressure Control for Stable Work Vehicle Torque
Dynamic HST relief pressure setting keeps circuit pressure in range to stabilize torque and reduce jerking during load fluctuations.
- Vehicle Shift Mode Control for Speed Ratio-Based Auto Return
A speed ratio change threshold replaces fixed distance switching, letting manual mode return to automatic at the desired ratio with fewer driver inputs.
- Vehicle Transmission Control for Braking-Induced LFU Shift Hold
Brake and pedal-off signal logic holds LFU shifts during deceleration to prevent busy upshifts, cut energy loss, and improve drivability.
- Compounding Gearbox Shift Control for Hydraulic Drive Efficiency
Torque-based range switching in a two-motor hydraulic travel drive cuts transmission losses and improves fuel-efficient power delivery.
- Vehicle Speed Shift Optimization Using Energy-Based State Costs
Energy-based state transition costs replace nonlinear force models to compute optimal vehicle speed and gear profiles with lower embedded resource use.