Clutches TRIZ Cases
- Torque Converter Clutch Control for CVT Downshift Response
A controller opens the torque converter clutch to accelerate engine speed and improve vehicle propulsion responsiveness.
- Semi-Automatic Powershift Transmission Shift Control
Simultaneous clutch actuator charging and engine speed alignment reduces manual shift delay below 200 ms while minimizing jerk.
- Electric Motor Clutch Control for High-Speed Regeneration
A clutch mechanism decouples an electric motor from drive wheels at high speeds to prevent over-speeding while enabling controlled power generation.
- Vehicle Lock-Up Clutch Control via Acceleration Slip Transition
Electronic control unit manages lock-up clutch engagement states to optimize power transmission efficiency.
- Dual Clutch Transmission Manual Driving Force Control
A dual clutch automated manual transmission uses a by-wire lever to adjust driving force.
- Variable Force Electronic Clutch Pedal Mechanism
Electronic clutch pedal uses a distal drum with varying slopes to generate variable resistive force, replicating mechanical engagement feel.
- Electric Booster Screw Rotation Limiting Mechanism
A piston protrusion part contacts the screw shaft to limit rotation range, preventing nut damage from excessive movement during brake release.
- Grease Composition for Constant Velocity Joint Low-Temperature Resistance
A diurea-based grease composition optimizes fluidity and viscosity to stabilize rotational resistance in constant velocity joints.
- Clutch Controller for Rapid Onset Overload Prediction
A clutch controller predicts engine overload using sensor signals and rate of change calculations to trigger protective disengagement.
- Hydraulic Control Device for Drive Power Distribution
A hydraulic control device manages drive power distribution by sealing fluid in an oil passage to maintain clutch fastening power without continuous pump operation.
- Clutch Control Overcurrent Protection via Level-Based Inverter Duty
Microcomputer segments detected current into multiple levels to control inverter pulse width modulation duty cycles for clutch systems.
- Hybrid Vehicle Clutch Torque Learning via HSG Power Redirection
A controller learns transferring torque by measuring free-load and load torques while redirecting charging power to a Hybrid Starter Generator.
- Compressor Pressure Sensor Merging for HVAC Control
Merging high-side and low-side sensing into one crankcase unit reduces system complexity and production costs.
- Automatic Transmission Control Device for Friction Element Heat Protection
A control device calculates frictional engagement element temperature and rotation difference to determine engageability.
- Rotary Electrical Machine Modulation Transition Control
A control method manages modulation transitions in rotary electrical machines by applying pre-defluxing current setpoints to stabilize inverter output.
- Clutch Control Device Dynamic Capacity Adjustment
A clutch control device calculates estimated engine torque to vary slip capacity via a dedicated actuator.
- Automated Drive Train Clutch Modulation for Slope Rolling Prevention
A clutch modulation method prevents unwanted vehicle rolling on slopes by comparing desired and actual drive directions during brake release.
- Saddled Vehicle Engine Braking Stabilization via Throttle Control
An engine braking controller offsets deceleration forces through an electronic throttle valve mechanism in a saddled vehicle.
- Vehicle AWD Clutch Control for Parasitic Loss Reduction
Alternating clutch sequences minimize parasitic losses and distribute torque evenly across multiple clutches.