Haltech E6GMX - Manual (Page 78)

E6GMX Manual
78
11.1 Turbo Waste Gate Control (TWG)
The turbo waste-gate control function controls a solenoid that bleeds air from the waste-gate
diaphragm preventing the waste-gate from opening.
Period 1 – 50 ms
This sets the period of oscillation of the solenoid. Most
solenoids will operate at around 30Hz, which corresponds to a
period of about 30ms. Enter the desired oscillation period in
milliseconds here.
Use Map One or Two or Advanced
There are two maps associated with the TWG control function.
Both set the duty cycle driving the solenoid versus engine rpm.
This parameter selects which map the ECU will use to drive the
bleed solenoid.
“One” and “Two” refer to the waste-gate maps one and two
respectively. The “advanced” option refers to conditional use
of map one and map two. The conditions for waste-gate map
usage when “Advanced” is selected are:
If the ECU is using the primary fuel and ignition maps then the
ECU will use waste-gate map one to control boost. If the ECU
is using the secondary fuel and ignition maps then the ECU will
use waste-gate map two to control boost. Refer to 4.2.1, Main
Set-up Page p35.
Boost Limit 0 – 209kPa / 0 – 30 psi
If the manifold pressure exceeds this limit, the solenoid valve
will immediately be set with a duty cycle value of 5%. This will
expose the waste-gate diaphragm to the full manifold pressure
and force the waste-gate to open. This value should be set
slightly higher than the desired maximum boost pressure as a
fail-safe in the event of an over-boost condition.
Update Eng. Data ENABLED or DISABLED
This field defines whether the duty cycle being used to drive the
solenoid is displayed in the engine data page.
11.2 Bypass Air Control (BAC) Valve
The bypass air control function controls a solenoid that regulates air around the throttle to
control the idle speed of the engine. This option has only one parameter:
Period 1 – 50 ms
This sets the period of oscillation of the solenoid. BAC
solenoids will operate across a range of frequencies. Enter the
desired oscillation period in milliseconds here.
The remaining parameters for idle control can be found in the output options page and are
described in 10.1.1 Idle Control, p72.