Chrysler laser 1990 Technical Information Manual page 266

ELECTRONIC CONTROL DEVICE
DAMPER CLUTCH CONTROL
The damper clutch is engaged or disengaged
according to the "map" stored in the transaxle
control unit.
This map is composed as the parameters of the
vehicle speed and the degree of throttle opening,
and somewhat approximates, in the main, the
diagram below.
When the control unit detects, as a result of the
signals from the sensor, that both throttle opening
and vehicle speed have reached the damper clutch
activation area, duty control of the damper clutch
control solenoid valve is activated, thereby activat-
ing the damper clutch.
The damper clutch is regulated so that it slips
slightly, although it is possible to increase the
Damper clutch activation conditions
1. Shift range: 2nd to 4th gear
2. Oil temperature: 60°C (l4oOF) or higher
3. Not a sudden downshift
AUTOMATIC TRANSAXLE - Transaxle Control
Vehicle speed
amount of slippage by duty signals from the control
unit. The control unit functions to calculate the
amount of slippage, and performs duty control so
that the amount becomes close to the target
amount of slippage (as set beforehand).
The relationship between the hydraulic-pressure
circuit and the damper clutch control solenoid valve
is described in the later section concerning the
hydraulic control system; please refer to page
21-59.
For detailed information concerning duty ,control,
this is described in the later section concerning the
hydraulic pressure control during shifting; please
refer to page 21-45
Damper clutch activation area