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Performances > Functions

Functions Diesel Engine Management

Engine Governing, Engine Control

  • All speed PID-governor
  • Idle/maximum speed governor
  • Torque based control structure
  • Stability maps
  • Droop = f (engine speed)
  • Set speed ramps = f (engine speed)
  • Torque limitation = f (engine speed, boost pressure, ...)
  • Temporary excess power = f (time duration)
  • Power reduction = f (coolant-, oil- , boost air temperature, ...)
  • Start/Stop-procedure with coldstart control
  • Charge air pressure control with variable turbine geometry VTG
  • Control of exhaust gas recirculation, particle filter, catalyst
  • Control of swirl flaps, waste gate
  • More functions, especially application specific functions for marine, rail traction, heavy vehicle and aggregate on demand

Engine Monitoring, Engine Protection

  • Monitoring of:
    • Temperature, pressure, level of Intake air -, coolant -, lube oil - circuits
    • Cylinder exhaust gas temperature
    • Crancshaft bearing temperature
    • Turbocharger speed
    • Splash oil temperature
  • Pre-alarm and alarm in case of limit value exceed
  • Power reduction or engine stop in critical conditions


  • Common rail – injection system, maximal 20 cylinders
  • Configurable crank angle measurement
  • Injection duration = f (injection quantity, rail pressure)
  • Injection beginn = f (injection quantity, engine speed, ...)
  • Rail pressure = f (injection quantity, engine speed, ...)
  • Rail pressure PID-governor with suction throttle control and/or pressure relief valve
  • Pre-injection, post-injection, multiple injection
  • Cylinder specific injection begin and injection quantity calibration
  • Automatic cylinder balancing


  • Communication with Application Program on PC for commissioning, operation, adjustment and diagnosis, protocol: ASAM-CCP (CAN Calibration Protocol)
  • Communication with higher systems via customer specific or standard protocols: SAE J1939, CANopen, …
  • Redundant CAN-bus


  • On-line control unit self tests: monitoring of internal power supplies, sensor references, unit temperature and battery voltage; watchdog; memory tests for RAM, EEPROM, FEPROM
  • Sensor, actuator, injector monitoring
  • Error memory, error counter
  • On board diagnosis OBD