Line pressure is main pressure of the transmission. It is controlled by relief valve which results in LOWERING actual line pressure while powering the solenoid – it means that values are INVERTED. Low values mean higher pressures, while higher values mean lower pressures.
Line pressure is present in all transmissions including dual clutch and hydraulic ones thus it has slightly different functionality.
- AT – Hydraulic transmission during normal run scenario has full clutch pressure applied so it means that line pressure directly regulates clamping force (and is the only parameter to do so).
- Dual Clutch – transmissions require having sufficient line pressure for proper selector forks movement. In both kinds of transmissions line pressure has effect on shifting and take-up characteristics. In general it shall be treated as a global pressure multiplier.
- LP BASE [%]
Line pressure table defines level of main transmission pressure. Lower values result in higher pressure, higher values result in lower pressure. Effective range 0-100% (from update 1.0.14). - LP TRQ drive[%]
Line pressure multiplier in function of gear and torque in normal driving mode (outside shifting and limp modes). Lower values will result in higher final pressure value. ALL LP tables are multiplicators of others. - LP TEMP [%]
Line pressure multiplier in function of gear and torque. Lower values will result in higher final pressure value. As the temperature rises oil get lighter so pressure has to be higher. - LP TRQ US [%]
Line pressure multiplier in function of gear and torque in UPSHIFTING MODE. Lower values will result in higher final pressure value. ALL LP tables are multiplicators of others. - LP TRQ DS [%]
Line pressure multiplier in function of gear and torque in DOWNSHIFTING MODE. Lower values will result in higher final pressure value. ALL LP tables are multiplicators of others.
