Gearing Control TRIZ Cases

External electronic control device monitors power supply relay status to detect functional failures in automatic transmission controllers.

A hydraulic control apparatus limits command pressure rise rate during neutral to running shifts in continuously variable transmissions.

Cooperative control maintains lock-up clutch slip rotational state by suppressing engine accessory load fluctuations.

A hydraulic control device manages oil supply timing to a torque converter using pressure detection signals.

Diagnoses transmission gear synchromesh failures using only wheel speed and input shaft sensors, eliminating the need for an output shaft speed sensor.

A shift range switching apparatus adjusts motor driving current to specific set values for automatic transmission gear changes.

Segmented clutch pressure modulation reduces shift duration and prevents component wear by managing torque surges during work machine gear shifts.

Segmenting the pump into independent outlets eliminates hydraulic energy loss from over-pressurization in low-pressure cooling circuits.

A controller determines fuel cut shift conditions to adjust transmission timing based on accelerator pedal position and vehicle speed.

A transmission control member translates and rotates to engage gears from an axial position in front of parallel shafts.

Increasing operating pressure through dynamic swept volume adjustments reduces friction losses and leakage flows in hydrostatic propulsion drives.

A charge pump controls accumulator pressure via partial charging operations to prepare automatic transmissions for immediate operation.

A shifting range sensing apparatus uses a magnet and Hall sensor to detect shift lever position accurately.

A metallic tube guides a locking ball axially while a radial communication hole allows internal oil to escape freely.