Circuit of electronic ignition UIS2

Electronic ignition of new generation for 4÷8 cylinder motors, intelligent control of pre – ignition and energy. Detailed description of ignition can be found here.

Basic features

  • Communication through RS-232 (diagnostics and adjustment by service program Manager), RS-485 (for cooperation for example with control system UniGEN) and further CAN
  • Development of custom algorithms by function
  • Configurable mapping of inputs and outputs
  • Supplying voltage 24V+/-20%,  supplying current 200mA/1,5A (quiescent / operative)
  • Number of coils 1-8
  • Output voltage 250-400V controllable
  • Detection of detonations
  • Detection of unburned ignition (measurement of quality of spark - over)
  • Adjustable output energy, possibility to correct energies only in some cylinders
  • Intelligent and very easy adjustment of output pre – ignition by stroboscope
  • Correction of pre – ignition from rotation, during detonation, customable (for example according to the type of fuel mixture) 
  • Number of teeth for reading rotations 2-255 (both simple - sensor and double – sensor reading)
  • 4x digital output
  • 4x digital input
  • 3x analog input - reset, crank (SW configurable, Hall sensor unit / Induction sensor / Kotlin), detonating sensor
  • Supplying voltage for Hall sensor unit 5V,100mA
  • Supplying voltage for sensor Kotlin 24V,100mA
  • Test-mode
  • Integrated tester (oscilloscope)


Process of signals

Ignition supports both double – sensor reading (gear ring turning on rotation of motor + "reset" thus reading of half - turn) and single – sensor reading (gear ring with "additional teeth", which is rotating on half - turn). From "reset" or additional teeth is winded the first cylinder burning, see picture: 

Number of teeth in both variants is defined by parameter and is independent on cylinders count.

Easy adjustment of pre - ignition

Adjustment of pre – ignition by service program Manager is very easy. After activating mode of adjustment of pre - ignition TMCI2 burns with pre  ignition 0° (in top dead centre).
After connection of stroboscope it is sufficient to measure angle on first cylinder in mode of adjustment of pre - ignition (without fuel mixture, only for starter) and this value enter in service program. 
Than pre – ignition is adjusted (stroboscope indicates angle 0°). After mode of adjustment of pre – ignition will be TMCI2 burning with parameter defined pre - ignition. 

Screenshots from service SW

Control systems, measurement, regulation
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