Hydraulic Control System: TCM
The TCM which is adapted to the new small sized automatic transaxle (A4CF2) is integrated into the ECM and deliver information via CAN communication.
ITEMS AND SIEMENS TCM REFERENCE
| ITEM | SIEMENS TCM |
|---|---|
| Hardware | Integrated type |
| Duty driving | Chopping method |
| Main oil pressure control components | Turbin torque, Vehicle speed |
| ATF Temp, compensation control | Independently |
| Direct control range | Wide |
• TLE6288 current control chip
The TLE6288 current control chip is installed into the TCM to regulate the solenoid control current and control the oil pressure securely according to the change of the temperature and voltage. In this case, the control signal of solenoid valve is divided into the Peak signal and the Hold signal.
- Peak : The 12 voltage signal applied to move the solenoid plunger quickly.
- Hold : The signal applied to keep holding the pulled solenoid valve.