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Adaptronic e420c

Adaptronic e420c ECU

 

 

Features

Standard ECU features

  • "3D" Fuel and Ignition maps (as on any sophisticated aftermarket ECU)
  • Configurable ignition and injection outputs to suit different applications
  • Inputs for water temperature, air temperature, auxiliary temperature (eg turbo), manifold air pressure, throttle position, knock sensor, EGO (exhaust gas oxygen)
  • Outputs for four injector groups - allows full sequential injection up to 4-cylinders, or semi-sequential injection up to 8- cylinders.
  • Outputs for three igniter groups (four optional) - allows full sequential spark up to four cylinders and wasted spark systems up to 8-cylinders, or any conventional distributor systems.
  • Eight configurable auxiliary outputs - four of which are configurable as high current outputs, three of which are PWM capable.
  • PC interface
  • Field upgradeable firmware
  • Eight configurable auxiliary digital inputs
  • Datalogging via 'WARI' PC software

Special Features

  • Adaptive fuel control - with configurable tolerances and loop gains, and conditions under which adaptive behaviour takes place
  • Narrow-band (factory EGO sensor) closed loop fuel control
  • High current programmable outputs - allows direct drive of solenoid valves for boost control, air bypass etc
  • Special function programmable outputs - allows control of anti-pollution purge valves, air conditioners etc
  • Open-loop and closed-loop idle bypass control - allows configuration of increased idle bypass amount based on low battery, electrical load, air conditioner, as well as correction based on RPM
  • Programmable for different crank angle sensor waveforms
  • Open-loop and closed-loop boost control
  • Traction control and launch control
  • Many other features

Technical Specifications

Attribute

e420c

Physical
Connectors 1 16-way OEM style plug for triggering and low current outputs
1 20-way OEM style plug for analogue and digital inputs
1 8-pin SIP connector for power and injector drives
1 6-pin SIP connector for high current auxiliary outputs
2 DE9 connectors for serial communications (one to connect to a PC/laptop, the other to connector to slave devices eg wideband oxygen sensor controller)
Physical Dimensions (mm) 174 x 92 x 50
Mass 0.4 kg
Looms available 0.5m long (for connection to existing loom)
2.0m long (for wiring directly to engine)
Various plug-in looms

Sensor Interfaces
Crank angle sensor type 3 programmable inputs, configurable as triggering ignition timing, injector drive, ignition timing during cranking, or cylinder 1 marker.
Reluctor and optical/Hall effect inputs, with configurable edge selection, internal pull-ups on optical/Hall effect inputs
Crank angle trigger waveforms Sync / trigger / multitooth / missing tooth (versatile programmability)
Nissan optical
Mitsubishi style with 2 sync pulses
Virtually all factory triggering systems
Manifold absolute pressure input 0 - 5V, 2-point linear calibration, range 0 to 400 kPa (requires external sensor, 5V supplied by ECU)
Air, water and aux temp inputs 4k7 pull-up (requires separate thermistor connected to ground), 32-point linearly interpolated calibration, range -30 to 125°C
EGO input 0 - 1V factory narrowband, or Bosch "wideband" - input impedance 10 MOhm.
Can connect 0-5V linearised sensor (eg PLX, M&W UEGO) to aux input
Can connect 0-3V Zietronix sensor to analogue input
Can connect M&W UEGO, TechEdge, Innovative to second serial port
Knock input High impedance input, bandpass filtered
Throttle position input 0-5V (5V supplied by ECU), 2-point calibration
Auxiliary digital inputs 8 inputs, each configurable as active-high or active-low, 12V tolerant inputs

Actuator Interfaces
Number of injector drivers 4
Injector driver waveforms Full sequential
Batch
Semi-sequential every period or semi-sequential every second period
Half/third/quarter speed full sequential
Fire all at once every cylinder 1 (as on Swift GTi, Alpine Renault)
Optional batch fire during cranking
Injector driver current Optional constant current or peak-hold drive, selectable steady-state current of 0.5A, 0.9A, 1.5A or 1.9A
Number ignition outputs 3 (4 optional)
Ignition output waveforms Selectable as firing on rising edge or falling edge
Ignition output type Open-collector with 560Ohm pull-up (allows direct connection to OEM transistor or separate igniter box)
Number of auxiliary outputs 8: 4 high-current, 4 low-current
High current outputs Max current 7A (or 3A inductive), 3 of these PWM capable, PWM frequency selectable (23Hz - 2kHz)
Low current outputs Max current 200mA - suitable to drive relay coils

Control Characteristics
Map points 512 cells per fuel/ignition map, dual maps which can be toggled with digital input.
Load determination and Tuning Modes

Optional Volumetric Efficiency Tuning

TPS or MAP based
TPS using 2nd map as MAP backup
MAP using 2nd map as TPS backup
Both maps MAP or TPS, digital input to select
MAP and TPS map, digital input to select
MAP and TPS map, use MAP on closed throttle, otherwise TPS
Use max/min/average/sum (MAP, TPS)
Read TPS from map and multiply by value in MAP table
Injector pulse width resolution 0.7µs (0 - 44ms)
Ignition resolution 0.2° (0 - 51°)
Dwell time resolution 0.1ms (0.1ms - 5ms)
Dwell time reduction for high RPM with high dwell time
Accelerator pump TPS and/or MAP based (configurable proportionality) as well as asynchronous accelerator pump.
Works with TPS pot or switch - pot gives better performance
Fuel control strategies Open loop, closed loop, and two adaptive modes (requires EGO sensor) - can run open loop above a specific MAP if required, target AFR can be set across rev and load ranges.
Fuel correction Trim tables based on Coolant Temperature and Air Temperature, Dead-Time correction
Ignition control strategies Trim tables based on Coolant Temperature and Air Temperature
Idle control strategies Open loop values with a 32-entry temperature table
Target idle speeds with 32-entry temperature table
Idle effort correction for air temperature
Idle-up functionality based on A/C request, electrical loads, power steering
Main loop speed 200Hz approx

 


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