MPT Models
LOCKUP CONTROL VALVE CONTROL ITEMS
| Control items | Description of control | ||
|---|---|---|---|
| Transmission control | Shifting control | Base shift control
|
Upshifting and downshifting are set for each range, gear and pattern according to throttle position and vehicle speed. |
| ABS-in-operation control | Gear is shifted in accordance with the vehicle speed when ABS signal is entered. | ||
| ATF low temperature control | Shifting into 4th gear is prevented when ATF temperature is below the preset value. | ||
| Automatic pattern select control | POWER pattern control | POWER pattern is selected when throttle opening is changed at a speed exceeding the preset value. | |
| BASE pattern control | When throttle opening is changed at a speed less than the preset value, BASE pattern is resumed. | ||
| Lockup control | Base lockup control | Lockup ON is set for D-range 4th gear; ON/OFF is set for all gears (except D-range 4th) and patterns. Lockup control is performed according to throttle position and vehicle speed. (Basically lockup is OFF during gear shifting.) | |
| Smooth control | Smooth lockup is performed when lockup is switched on. | ||
| Line pressure control | Ordinary control | Line pressure is regulated according to throttle position, vehicle speed and range signals. | |
| Shifting control | Line pressure is regulated when shifting to lessen shifting shock. | ||
| Starting control | Line pressure is lowered to a minimum so as to reduce engine cranking load. | ||
| Shift timing control | Gear speed control | ON/OFF timing for shift solenoid is controlled. | |
| Lockup control | When shifting, the lockup clutch is temporarily released. | ||
| Line pressure control | When shifting, line pressure is controlled to the optimum level so as to reduce shifting shock. | ||
| AWD transfer clutch control | Ordinary transfer control | Transfer clutch pressure is regulated according to the throttle valve angle and vehicle speed. | |
| 1 range control | Transfer clutch pressure is increased. | ||
| Slip control | Immediately after detecting a slip, transfer clutch pressure is controlled to the same pressure as 1 range. (This control is canceled if V > 60 km/ h (37 MPH), or when throttle valve is closed fully.) | ||
| Turning control | Transfer clutch pressure is reduced after detecting a turn. | ||
| ABS-in-operation control | Transfer clutch pressure is adjusted to a set level immediately after reception of ABS signal. | ||