Autronic SM4.Installation kit. — Toyota Mark II, 3.0 liter, 1990

Here is a kit for installing this computer in my car. The control unit itself, a braid, an intake air temperature sensor, a coolant temperature sensor (already installed), a fuel pump relay (it's lying around somewhere!), a boost valve, an innovate com to USB adapter and a laptop for tuning. While everyone is gathering dust waiting for their turn. First you need to make the machine work on a standard control unit, since there is control of the sequential operation of turbines, etc., and then, as on the 90th Mark, I will connect SM4 to the standard wiring and transfer the ignition and boost injector control functions to it.

Sm4 is the latest model developed by Autronic at the moment. The presented model has a lot of different settings for a large number of types and types of engines for various brands of cars, motorcycles, etc. A global change in functions is achieved by replacing the main chip ... 1.01---1.09 and so on, in a similar format. This block differs from the rest by the presence of a large number of user-configurable input and output channels, allowing you to design the control of various devices; more precise control of the control of injectors and ignition timing in all ranges and at different pressures in the receiver, as well as a high level of block protection and tolerance for signal errors from trigger mechanisms and similar devices,

Input devices

* Trigger

Any types of sensors are defined; inductive type, Hall sensors or optical, as well as any combination and in particular for working with camshaft and crankshaft position sensors with any signal configurations (Multi tooth, Missing tooth, Subaru, Mitsubishi, Ford TFI and Gen3 triggers, etc.). Dedicated software configured for improved noise immunity. Programmatically selectable crankshaft sensor position angle. Huge selection of ready-made trigger samples for various motors (trigger angle.)

* Sensors

= Specialized (excluding the influence of the temperature of the structure) intake air temperature sensor supplied as a kit or NTC (the ability to select the type and range of operation);
= NTC coolant temperature sensor (selectable type and range of operation);
= TPS (throttle position sensor), programmable for any type of existing sensors;
= Included in the unit pressure sensor in the receiver up to 4.4 bar absolute pressure (version 1.09 up to 7 bar absolute pressure, the range is selected by the user by software);
= Possibility to use an external pressure sensor;
= Mass sensor, - sensor for determining the amount of air;
= Barometric pressure sensor;
= AF selection of 2 channels for using different devices for determining the air-fuel mixture;

* Additional input channels

= Three additional channels for monitoring use: EGT, EBP, O2, spare O2, oil temperature and pressure, user selectable;
= Keys: devices for activating additional applications of physical functions, for example: boost control for manual transmission gears, etc.;
= Analog inputs, for user defined calibrations;
= Control of camshafts with variable phases of rotation (2 shafts): VANOS, VVT, mivec, etc.;
= Knock control with advance angle (retard) control of each cylinder (requires installation of an additional internal module)

Output devices

* Injection (injectors)

= 8 injector pins, software defined 4/1 amp 2/0.5 amp Peak/Hold type for High & Low Current Injector types. Possibility of installing a double row of nozzles and staging of their control;
= Choice of 2 groups of 4 channels for: sequential, single and double connection type 1 or 2 groups of injectors, 16 injectors can be used;
= Possibility to use unoccupied channels of injectors for other functions;
= 7 channels for additional functions

* Ignition

= 4 ignition control channels, expandable to 8 channels when using a multiplexer;
= Push-Pull +/-1 amp max;
= Software selectable control types Dwell (Inductive) or Pulse (CDI) Output;
= Defined in the dwell time table depending on the revolutions (RPM), load (LOAD) and voltage (Voltage);
= 3 channels for additional functions

* Features and functions

= Optional multi-level boost control;
= Using speed data from external triggers;
= Lunch control and anti-lag at the start from rpm and boost (additional features and anti-lag functions);
= Ability to control slip in 1st gear, depending on the speed and the range of specified revolutions;
= TPK, traction control from 4 wheels;
= NOS control with adjustment of fuel and ignition angles depending on user-defined parameters;
= A/C control;
= Control of 2 engine cooling fans depending on load, engine speed, speed, etc.;
= 10 GPO main channels to control:
5 Pull-down @ 3.5 amp max
1 Pull-down @ 1 amp max
4 Push-Pull @ +/- 1 amp max (also for stepper motor).
= 15 Pulse width modulators to GPO; Spare Injector or Ignition O/Ps; All channels have a minimum frequency of 10Hz, 3 have a frequency increased to 500Hz, 2 have a frequency increased to 1.2KHz;
= Support for various types of idle valves, 2-pin and 3-pin types of Bosch and the like, as well as a stepper with a different number of executive windings from 2 to 6 pieces;
= Unoccupied pins for the stepper mechanism can be used for other purposes;
= Control of 2 variable camshafts. The control of the camshaft position is very accurate and the response time to movement is less than 1 second;
= Control of 2 variable camshafts is possible for all known VVT systems: VANOS, VVT, VVTi. mivec, etc.;
= The optional internal knock control module is one of the most advanced aftermarket systems available. Knock control is user defined, using enrichment and ignition timing, or a combination of these methods, and is performed only on those cylinders in which knock occurs;
= Internal and external error indication, self-diagnosis mode;
= Highly efficient power supply of the unit and the output driver are not subject to heat during operation;
= Communication between the block and the PC is carried out at a speed of up to 115 baud, the calibration is loaded within no more than 19 seconds;
= 112k block logger internal memory

* Software (software)

The tuning process in this software determines the entry of data into the fuel and ignition tables, built depending on the engine configuration and tuning ideology, namely tables depending on Manifold Pressure, Throttle Position, Manifold and Throttle or Manifold, Throttle and Exhaust Backpressure on rpm. Fuel and ignition tables have user-defined dimensions, but up to a maximum of 32 axles in terms of revolutions and 16 in terms of load. The Air/Fuel Ratio table allows the user to enter an AF value based on load and RPM for further use in Autotune, Manual Tune, Mixture table and Closed Loop Control modes and also to quickly adjust the AF ratio on a continuous basis without using an O2 sensor after final tuning. engine. The auto-tuning mode feature allows the user to tune the fuel table with an accuracy of 1 to 5% in real time using the Autronic Air/Fuel Analyzer in automatic mode without operator input from the PC keyboard. During tuning in auto-tuning mode, the cells of the fuel table will be colored in the color corresponding to the tuning accuracy, and the statistical significance of the obtained value will also be recorded as a lock for changing in the next action and to prevent its accidental change. It is faster, easier, more accurate and safer to perform auto-tuning on a motor stand or on a dyno that simulates the movement of a car on the road, but tuning can also be successfully performed in real time on the road, in the field.
The manual setting mode is performed by individual comparison of the data in the cells received from the data logger with the target AF target table. The Mixture table mode allows you to register instantaneous AF data, as well as evaluate the statistical weight of these values, which greatly simplifies the manual fuel table setting mode and allows you to adjust the table before races in a matter of seconds. 13 GPC (General purpose control) settings for output channels control various control devices; they can be used to control the fuel pump(s), power steering control, air valves, additional temperature control devices; 4 of them are capable of feedback control, for example in cases of control of the position of the camshaft after its displacement.

* Data logger

Data logger allows you to scan up to 100 fragments (frames) per second, automatic activation of the logging mode. Fully user-configurable menu for viewing recorded parameters, their scaling, color of graph lines, etc., the ability to track parameter changes, all this and many other functions and capabilities make the data logger a convenient tool for tuning the engine.