Haltech E6X Manual DOS Version - Manual (Page 62)

E6X Manual
62
speed in the range 0rpm to 16000rpm and each bar represents a duty cycle fed to the bleed
valve in the range 5% to 95%.
5.3.10 Torque Converter Control Map
The torque converter control map is accessed through the menu structure under the maps
menu and is used in conjunction with the torque converter control. Refer to 13.4 Torque
Converter Clutch Lockup (TCC), p90.
When the torque converter clutch control is used, the ECU uses the torque converter control
map to determine whether the clutch lock-up should be engaged. The map has 24 bars
distributed across throttle position in the range 0% to 100% and each bar represents the road
speed at which the clutch lock-up should be engaged in the range 0k/h to 300k/h.
5.4 Dual Maps
A second set of Fuel and ignition maps is provided for use with dual fuel vehicles or for users
who wish to use pump fuel day to day and race fuels at the track. The same engine running
on different fuels will almost always require some modification to the fuel and ignition maps
to produce maximum power (or efficiency), and rather than loading and reloading different
maps, the user can simply switch between the two maps which best suit their driving
requirements.
Dual maps can be used in conjunction with the variable valve controlled engines. Variable
valve control changes the engines operation when engaged, consequently a second map can
be tuned to suit this change so that the engine will operate correctly at all points on the load
and speed ranges with the variable valve control engaged or disengaged. The Haltech
VTECH control feature can be programmed to have hysteresis on the output to prevent
oscillations at the switching point (load or speed), consequently there is a range of speed and
or load points at which the engine operates with both the variable valve control engaged and
disengaged, this means that the fuel and ignition can only be optimised for one state of the
variable valve control engagement if only one map is used, this may result in the other state
having poor fuel and ignition tuning. Switching between the primary and secondary fuel and
ignition maps allows both states of variable valve control to be mapped correctly. Refer to
4.2.5 Dual Map Set-Up, p51. The turbo waste-gate control solenoid maps can also be
configured such that waste-gate Map 1 is used with the primary fuel and ignition maps and
waste gate Map 2 is used with the secondary fuel and ignition maps. This allows different
boost levels for different fuels and environments. Refer to 13.1 Turbo Waste Gate Control
(TWG), p88.
5.4.1 Editing Dual Maps
When modifying the fuel and ignition maps the user can swap between editing the primary
and secondary map by pressing Alt-D, The current map is displayed on the screen and it is
identified by:
“Editing Primary Map” for the primary map or “Editing Secondary Map” for the
secondary map.