Configuration Of Idle Parameters; Idle Parameters - ECU Master EMU User Manual

CONFIGURATION OF IDLE PARAMETERS

Idle parameters

Idle parameters are used to configure engine idle control options. A valve that regulates engine air
flow during idle is the base device of idle control system. Base map for idle tuning is Idle Ref table
which defines base opening of idle control device with relation to engine coolant temperature
(CLT). With lower Coolant Temperature, higher air flow is needed to keep engine RPM at required
level. Ignition angle modification is an effective method of idle RPM stabilization. It can be
implemented with PID controller or with simple table defining angle modification as a function of
RPM Error (Idle ign. corr). RPM Error is a difference between current engine RPM and target RPM
defined in Idle Target RPM. Information about current idle control state (active or not) and
controller parameters can be found in Log group idle.
ON/OFF – such valve has only two conditions: on and off. It is always a by-pass. Valves of such
type occur in old cars and it is a rarely used solution.
EMU
G12
G17
G24
B24
Sample wiring diagram of On/Off solenoid
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