Double Vanos - ECU Master EMU User Manual

Max DC
Min DC
Higher DC
Min coolant temp
Min RPM
kP
kI
kD
Integral limit
Deadband

Double Vanos

By default Double VVT solenoids (Vanos) are controlled by +12V (High side). The EMU controls
solenoids by switching them to the ground (Low side). In this case it is required to change direction
of diodes that are built in into solenoid connectors or solenoids module.
solenoid this value define the DC when the camshaft position is
stable. In practice this value defines when the camshaft changes
its movement direction.
In Double Vanos system this value should be 50%
Maximum allowable DC value of camshaft control solenoid
Minimum allowable DC value of camshaft control solenoid
Increase cam angle - increasing signal DC increases the value
of cam shaft position
Decrease cam angle - decreasing signal DC increases the
value of cam shaft position
The minimum coolant temperature value that allows camshaft
position control
The minimum RPM value that allows camshaft position control
Proportional gain of PID controller
Integral gain of PID controller
Derivative gain of PID controller
Prevents the integral term from accumulating above this limit
The neutral zone where no DC change is performed
G12
EMU
G4
G17
G24
B24
Sample connection of double solenoid VVT
Page 107
+12V
+12V
+12V