i44

i44

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Vi-Pec i44

While the Vi-PEC i44 is the smaller model, it is still a very capable unit, with control of up to four variable cams and support for engines up to twelve cylinders. Software 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.

  • Motor Sport features include: Antilag, Flatshift, Launch control and traction control in first gear.
  • Individual Cylinder "Windowed" Knock control
  • Peak and hold injector drivers. Both the peak Amps and hold Amps can be set separately in the software for optimum injector control.
  • 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 set up to provide a different boost in each gear or switch between boost control tables.
Hardware
Hardware

Hardware info

The original product will have been shipped with the following hardware setup:

  • Main Connector 34 Pin waterproof.
  • USB data link connector plus CAN
  • Case, silver extruded aluminum, 142 x 172 x 42 mm (overall).
  • 40 MHz Specialized Automotive Microprocessor.
  • Ignition control to 0.1 degree, fuel to 0.01 ms -
  • 32 Bit Calculation
  • 10 Bit ADC Resolution
  • Max 20000 RPM
  • ECU to PC data link operates at up to 57600 baud for fast data update an logging using PC logger
  • High efficiency power supply & output drivers for reduced power consumption and reduced self-heating.
  • Four ignition outputs. Sequential to 4 cylinders and wasted spark up to 8 cylinders. Support for engines up to 12 cylinders with distributors.
  • Software selectable dwell or O/P pulse duration modes possible.
  • Four coil dwell, software selectable.
  • Four low current injector outputs. Optional Peak and Hold drivers available.
  • Spare injector and ignition outputs can be used for output control.
  • 8 Auxiliary Outputs
  • 4 Digital Inputs
  • 4 Analog Voltage Inputs
  • 2 Temperature Inputs
  • 3 Load Inputs (MAP, TPS, MAF)
  • 2 Trigger Inputs (Reluctor, Optical or Hall Sensors)
  • Camshaft & crankshaft sensor inputs individually software configurable for hall effect & reluctor sensor types. Response speed is also software configurable for improved noise immunity.
  • Four general purpose digital Inputs with logic level sensitivity & pullup to +5volts. Useable for speed, switch input and camshaft position measurement.
  • Variable Camshaft control for up to four camshafts. VANOS and other VVT and VVT-i supported.
  • NTC or PTC air temp sensors, software selectable.
  • Internal 4 bar map sensor. External map sensor support.
  • Internal baro sensor. Corrections for barometric changes in real time.
  • Stepper motor idle control, two and three wire idle control.
  • Support for air flow meters.
  • Tacho & Diagnostic outputs.
  • Communication with PC software via USB cable. (No need for Serial to USB adapters)
Software
Specifications
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