The newest product now available. All the years of Autronic experience has
now been incorporated into this product. This ECU has more features than
previous generations to allow for a greater range of engine configurations.
Modern engines have variable camshaft control and the SM4 can control most
systems. Full proportional control with full advance and retard is less than 1
second.
An optional internal Knock module is available to give secure detonation
avoidance on an individual cylinder by cylinder retard of fuel enrichment or
both.
What you get.......................
In-built dual reluctor interface / hall effect interface.
Camshaft & crankshaft sensor inputs individually software configurable for
hall effect & reluctor sensor types. Response speed is also software
configurable for improved noise immunity.
Three general purpose digital Inputs with logic level sensitivity & pullup
to +5volts. Useable for speed measurement. Switch I/Ps. Two are useable for
Camshaft position measurement.
Knock control with individual cylinder retard (requires installation or
additional internal module).
Variable Camshaft control for up to two camshafts. BMW, ALFA, SUBARU,
MITSHUBISHI, FIAT, HYUNDAI.and others supported.
Autronic or NTC air temp sensors, software selectable.
Internal or external map sensor, software selectable.
High and low injector driver software selectable.
Staged injection.
Stepper motor idle control.
Support for most idle valve type including 2 wire, 3 wire & stepper
possible. Stepper pins can be used for spare outputs if not used for idle
control.
Pins can be duplicated to increase current drive.
Support for air flow meters.
Internal Pressure sensor useable for MAP &/or barometric sensing.
Tacho & Diagnostic outputs.
2 x Spare Analog inputs (EGT, EBP, 02, feed back pots etc...) Spare analog
Inputs may be used as additional low speed digital inputs (eg:- switch inputs).
Analog inputs can be set for predefined calibrations or user defined
calibrations.
Main Connector 42 way sealed with
protective cover and mechanical connect/disconnect lever.
PC serial data link connector 3 way 3.5 dia.
Processor speed 20Mhz.
OK to 13,000 rpm on 16 cylinder engine. 1 to 12 cylinders to > 16000rpm.
ECU to PC data link operates at up to 115k baud for fast cal down load & Log
file upload (19sec typ for 112k bytes). 112k logging memory.
Internal Diagnostic light & optional remote light.
High efficiency power supply & output drivers for reduced power consumption
and reduced self-heating.
Four ignition outputs. (With ignition external expander up to eight) Rating
Push-Pull +/-1 amp max. Up to 3 useable for alternate functions.
Software selectable mappable dwell or O/P pulse duration modes possible.
Four coil dwell, software selectable.
Eight injector outputs. Rating selectable software 4/1 amp 2/0.5 amp peak/hold
type for high & low current injector types or parallel operation of injector
pairs. Rating may be specified independently for 2 groups of 4 O/Ps. Sequential,
single or double shot 1 or 2 group fire possible for up to 16 injectors. Up to 7
useable for alternate functions.
10 General purpose (GP) Outputs
5 Pull-down @ 3.5 amp max
1 Pull-down @ 1 amp max
4 Push-Pull @ +/- 1 amp max (also suitable for stepper motor control).
15 Pulse width modulators to GP, spare Injector or Ignition O/Ps. All have 1 OHM
min, 3 have upper limit of 50OHz, 2 have upper limit of 1.2KHz.
Specifications.
PROGRAMMABLE PARAMETERS
Launch Control (two step rev limiter based on vehicle speed).
Flatshift (change gears without clutch at WOT using standard gearbox).
Antilag (keep turbocharger on boost during gear changes) with turbo cool down
function.
Selectable ignition tables. Output tables can be based on any X and Y axis
parmentier.
Fuel and ignition tables have 32 rpm and 16 load site axis.
Many correction tables for precision fuel & ignition adaption.
Table axis values totally user selectable.
Multi tooth, missing tooth, Subaru, Mitsubishi, Ford TFI and Gen3 triggers.
Software selectable trigger angle.
Dedicated idle control with additional settings for better adaption to changing
operating condition and a more stable idle.
Dedicated Closed loop boost control, and other settings for stable boost
pressures. Dedicated A/C compressor control.
Autotune (self tuning software). Requires O2 sensor.
Dedicated twin cooling fan control.
Dedicated NOS injection control, coordinates fuel & ignition.
13 General purpose control modules for O/P control. (use for variable fuel pump,
power steering, inlet manifold air valves, extra temperature control devices
etc) 4 of these are capable of PID feedback control (typical application for
PIDs are variable camshaft positioning or inlet manifold length).
Mapping via manifold pressure, throttle position, manifold and throttle or
manifold, throttle and exhaust backpressure.
