GM > Transmission > General Pressure

General

• Mod Main Pressure Enable Low: If enabled, Trans Temp must fall below this to disable modulated main pressure.
• Mod Main Pressure Disable Low: Trans Temp must be above this to enable modulated main pressure
• Mod Main Pressure Enable High: Trans Temp must be below this to enable modulated main pressure
• Mod Main Pressure Disable High: Trans Temp must be above this to enable modulated main pressure
• Steady State Adapt: Master enable/disable for transmission steady state pressure adaptation calculations
• Steady State Adapt Disable Time: Adapt updates will be disabled for this amount of time after a previous update
• Steady State Adapt Range Change Time: Adapt updates will be disabled for this amount of time after a gear range change
• Steady State Adapt Min VSS: Vehicle speed must be above this to enable adapt updates
• Steady State Adapt Min Clutch Capacity: Clutch capacity must be below this to enable updates

Delta TPS Pressure

• Steady State Delta TPS Min: Minimum TPS to enable the delta TPS pressure modifier.
• Steady State Delta TPS Filter Coeff: Filter coefficient for change in TPS, higher numbers means less filtering.
• Steady State Delta TPS Gain: Gain in PSI per percent for the delta TPS pressure modifier.
• Steady State Delta TPS Pressure Limit: Maximum limit for the delta TPS pressure modifier.

Adapt Counters

• Steady State Adapt Up Count Thresh: Adapt pressure up when slip counter exceeds this value.
• Steady State Adapt Down Count Thresh: Adapt pressure down when slip counter exceeds this value.
• Mod Main Pressure Enable High: Counter will increment if slip RPM exceeds this value.
• Mod Main Pressure Disable High: Counter will decrement if slip RPM exceeds this value.
• Steady State Adapt Up TCC Slip RPM: Counter will increment if slip RPM exceeds this value.
• Steady State Adapt Down TCC Slip RPM: Counter will decrement if slip RPM exceeds this value.
• Steady State Clutch Adapt Up Counter: The slip counter will be incremented by this amount when adapt up clutch slip conditions are met.
• Steady State TCC Adapt Up Counter: The slip counter will be incremented by this amount when adapt up TCC slip conditions are met.
• Steady State Adapt Down Counter: The slip counter will be decremented by this amount when adapt down slip conditions are met.

Pressure Control

• Steady State Adapt Up: Subtracted from the adapt pressure when adapt down is required.
• Steady State Adapt Down: Added to the adapt pressure when adapt up is required.
• Steady State Line Clutch Gain: Multiplies steady state line pressure.
• Steady State Line Temperature Compensation: Multiplier in PSI per Ft.lb that compensates for trans temperature.
• Steady State Line Clutch Offset: Adds to line pressure.
• Steady State Pressure Offset: Adds to line pressure.
• Steady State Pressure Offset - TCC On: Adds to line pressure when the TCC is on.
• Steady State Pressure Gain: Multiplies steady state line pressure.

Closed Throttle Pressure

• Steady State Closed Throttle TPS: Use closed throttle pressure if TPS less than this and VSS less than thresh
• Steady State Closed Throttle VSS: Use closed throttle pressure if VSS less than this and TPS less than thresh
• Steady State Closed Throttle Pressure: Controls closed throttle line pressure