Mitsubishi Eclipse II technical information manual page 199

text version of content this owner's manual page from owners manual to the vehicle Mitsubishi Eclipse, year of production 1995 - 1999:

POWER TRAIN- Automatic Transaxle Transaxle Temperature The transaxle temperature operating range is basedcalculated and then increased primarily based on ona predicted fluid temperature which is calculated transaxle run time in gear. Time calculation excludes from a combination of inputs. The predicted fluid operation in park and neutral. temperature is continually updated and retained in A detailed explanation of how transaxle temperature memory for 20 minutes after the ignition switch is range affects transaxle operating characteristics is turned off. When the vehicle is started after an ex-covered in the shift schedule and EMCC sections. tended off time, the predicted fluid temperature isThe primary temperature inputs to the TCM are reinitialized at a value equal to the battery tempera- battery temperature, engine coolant temperature ture signal received from the PCM over the CCD and in-gear run time since start-up. bus. The temperature input signal must then be Transaxle Temperature Output Modes Output modes used by the TCM are extreme cold,cold range allows for near normal transaxle opera- supercold, cold, warm or hot. The extreme coldtion under sub-zero conditions. The cold, warm, range is set when the initial predicted fluid tempera- and hot ranges provide different operating features ture is less than- 15 degrees F. It will clear twoas warm-up occurs. The transaxle temperature minutes after a cold start. The supercold range isrange is “cold” at less than 36 degrees F, “warm” set when the predicted fluid temperature is lessabove 40 degrees F and “hot” above 80 degrees F. than 0 degrees F. It will clear when the predicted fluid temperature exceeds 10 degrees F. The super- Shift Schedule Logic Shift schedule logic, programmed into the TCM, The primary inputs to the TCM are the transmission selects the appropriate shift schedules for the cur- range and park neutral position switches (shift lever rent operating conditions. This is to determine theposition), throttle position, and output speed. Some “desired” gear range the transaxle must be operatedother secondary inputs include, but are not limited in. The desired gear range is a primary input toto, calculated transaxle temperature and current the shift logic selection function. The TCM then acti-shift logic. vates the appropriate shift logic schedule to achieveShift schedule output codes simply provide the TCM with the desired operating gear range signal. Shift the desired gear. The actual shift points within each shift schedule have been pre-determined for bestschedule logic output is updated every 7 millisec- transaxle operation and are stored in the TCM’sonds and is a primary input to the Shift Logic Selec- ROM memory. tion function programmed into the TCM.

owners manual Mitsubishi Eclipse

owners manual Mitsubishi Eclipse - year of production: 1995, 1996, 1997, 1998, 1999 - Mitsubishi Eclipse II technical information manual EN