Download - Simtek Electronic Performance

WASTE GATE SECOND VALVE
There is provision for a second wastegate solenoid valve controlled by the WG#2 map.
The pin used to act on these settings is defined by WG#2 pin.
Wastegate duty can be modulated by Pedal position if WG feedback = Off, then the
Wastegate Pedal mod map is active.
If WG#1 mul =/= 0% Then:
WG duty = (WG MSR (C) - WG#2S level)x WG#1 mul and
WG#2S duty = WG#2S level which if non zero can control an output pin specified by
WG#2 Pin.
IDLE CONTROL
The idle control is a compensation for engine temperature as measured by the coolant
sensor, and Engine speed, and the four optional factors Idle Start, Power Steer Idle,
A/C Idle and Idle >12volt . These go to make Idle, which is then presented to the active
throttle controller as an offset Act T Idle, which is the fractional multiplication of Idle by
Act T Idle M.
The base target value specified in the Idle speed table. Idle FB is a slow proportional
control parameter that is activated when Pedal < Idle Pedal option, and constrained not to
exceed Idle FB+, Idle FB- options, when engine speed is not equal to Idle target speed.
Idle mod the user variable may be adjusted to optimise the table. Idle Set Deadband will
prevent Idle Set from changing if d idle speed is in it’s dead band.
Idle =
Idle Coolant +Idle mod +Idle speed +Idle FB + Idle Start + A/C Idle + Idle >12volt
+ Power Steer Idle + Idle Fan Fast + Idle Fan Slow.
OR
Act T Idle mod = from Idle Speed Duty table +idle FB
Idle >12volt is added to the current Idle value when the battery supply voltage is less than
12.5volts.
A/C Idle is added if the air conditioning request is active, likewise the fans can increase idle
when Fan Fast = On, with Idle Fan Fast, similarly for Fan Slow with Idle Fan Slow
option.
Power Steer idle is added if the power steering pressure switch is active.
SimTek FIRMWARE USER MANUAL
page 38