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%
Max DC Maximum allowable DC value of camshaft control solenoid
Min DC Minimum allowable DC value of camshaft control solenoid
Higher DC
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
Min coolant temp
The minimum coolant temperature value that allows camshaft
position control
Min RPM The minimum RPM value that allows camshaft position control
kP Proportional gain of PID controller
kI Integral gain of PID controller
kD Derivative gain of PID controller
Integral limit Prevents the integral term from accumulating above this limit
Deadband The neutral zone where no DC change is performed
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.
Page 107
EMU
Sample connection of double solenoid VVT
+12V
+12V
+12V
G12
G4
G17
G24
B24
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