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Message: <blockquote data-quote="normality78" data-source="post: 2704882" data-attributes="member: 17">[FONT=Arial, Helvetica, sans-serif]SM4 Model ECU.[/FONT]<a href="http://javascript:;" target="_blank">http://www.autronic.com/image_files/smc-kit-4-thumbnail.gif</a> Click Image For Larger View The SM4 is our latest model ECU. This ECU has many features which allow it to be setup to suit various types of engine configurations. It has very flexible options over how the inputs and outputs are controlled, and allows the user to design their own functions to control all sorts of devices. Precise control of injectors and ignition angle are guaranteed at very low or high RPM or manifold pressures. A very high level of protection from interference and tolerance of trigger input errors has been built into this ECU, ensuring a smooth running engine even under the most demanding conditions. Variable camshaft control for up to two camshaft. Control of camshaft position is very precise and time taken to advance from full retard to full advance is less the 1 second. Support for most VVT and VANOS systems. Closed loop control of idle speed and boost pressure makes for a "factory" idle speed stability, and precise control of boost pressure. Boost control can be setup to provide a different boost in each gear. The optional internal knock control module gives one of the most advanced aftermarket knock control available. Knock control is user definable to use either fuel enrichment or ignition retard or a combination of both the control only the cylinders that have knock. (GENIEUS)HARDWARE:Main Connector 42 way sealed with protective cover. PC serial data link connector 3 way 3.5 dia. Case, silver extruded aluminium, 130 x 124 x 48 MM (overall). Processor speed 25% faster & overall performance > 2.OX previous generation. 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 external multiplexer 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. (With external multiplexer up to eight)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 3 PWM (dedicated)5 Pull-down @ 3.5 amp max1 Pull-down @ 1 amp max4 Push-Pull @ +/- 1 amp max (also suitable for stepper motor control). 15 PWM using GP outputs, spare Injector or Ignition O/Ps. All have 1 OHz min, 3 have upper limit of 50OHz, 2 have upper limit of 1.2KHz. 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 of additional internal module). Variable Camshaft control for up to two camshafts. VANOS and other VVT and VVT-i supported. Autronic or NTC air temp sensors, software selectable. Internal or external map sensor, software selectable.High and low injector driver software selectable. 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. Support for air flow meters.Internal Pressure sensor useable for MAP &/or barometric sensing. Tacho & Diagnostic outputs. 3 x Spare Analog inputs (EGT, EBP, 02, etc...) Spare analog Inputs may be used as additional low speed digital inputs (eg:- switch inputs). Two have dual logic levels (two switch levels per input)Analog inputs can be set for predefined calibrations or user defined calibrations. SOFTWARE:Autotune (self tuning software). 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 cooldown 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. Support for two and three rotor engines with ignition split. 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. 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. Case Dimensions:L = 130mm (5-1/8") W = 124mm (4-7/8") H = 48mm (1-7/8") Weight = 0.5kg (1.1 lbs) For more information and wiring diagrams dlownload the SM4 software from this <a href="http://www.autronic.com/page_files/software.htm" target="_blank">page</a>. Press F1 in menus for help. Wiring diagrams are under the help menu.Specifications. Microcomputer.Intel 16 bit running @ 20MhzSupply VoltageNormal operation Safe limits6.2V to 23V DC continuous+/- 24V (5 min)+/- 80V alternator load dump (0.5 sec).+/- 1000V inductive spike (10 usec)Current Drain@ Engine idle @ Max Engine Load< 1 Amp.< 16 Amp (less depending on injector type and number.Operating Temperature RangeMin Max - 40 deg C.+ 85 deg C.Engine Cylinder Number SettingsNumber of cylinders1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14 and 16Engine RPM Range0 to 30,000 RPM 0 to 16,000 RPM 0 to 15,000 RPMEngines up to 4 cylindersEngines up to 5 to 8 cylinders.Engines 10 to 16 cylinders.Injection Duration TimingMin Max Accuracy Settingresolution0.65 msec.50 msec.+/- < (10 usec + 1%)0.1% approx.Injection TimingRange Accuracy Settingresolution0 to 720 deg (crank angle).+/- < (1.4 deg + 0.3 msec).2.8 deg.Ignition TimingAdvance range Accuracy Settingresolution0 to 45 deg (crank angle).+/- 0.2 deg (crank angle).0.5 deg (crank angle).Fuel Delivery and Ignition MappingNo. Load sites No. RPM sites16 (max). Both Load and RPM sites32 (max). are freely selectable. Data Logging MemorySize112kSizeL * W * H130 * 124 * 48mm Weight . 0.5 kgConnectors.42 way 'AMP' water and dust proof socket<a href="http://www.autronic.com/page_files/sm4_kit.htm#top" target="_blank">Back to top of page</a>http://www.autronic.com/page_files/sm4_kit.htm#top</blockquote>

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