ECU 2 Engine control unit

The Liebherr engine control unit ECU 2 for diesel engines with up to 8 cylinders is also used for stationary gas engines. It impresses with extensive inputs and outputs, as well as a high level of self-diagnosis. In addition, the ECU 2 includes an interface for the direct control and monitoring of a SCR or SCRFilter system. This makes it possible to fulfil the various emissions standards such as EU Stage IV / V, EPA Tier 4f, as well as Euro V /VI. The control unit is certified according to the road approval ECE-R10. The engine control was also developed in line with international safety standards and enables functional safety requirements of function chains to be fulfilled.

Supported emission standards EU Stage IV / EU Stage V / EPA Tier 4f / Euro V / Euro VI
Supported engines Diesel engines / Stationary gas engines (CNG)
Number of supported cylinders 8
Supported injection systems Common-Rail-Systeme
Integrated SCR control interface yes

Technical data

Supported emission standards EU Stage IV / EU Stage V / EPA Tier 4f / Euro V / Euro VI
Supported engines Diesel engines / Stationary gas engines (CNG)
Number of supported cylinders 8
Supported injection systems Common-Rail-Systeme
Integrated SCR control interface yes
Processor Freescale SPC56xx Family
Flash memory 4 MB
RAM data memory 256 KB
EEPROM memory 128 KB
CAN-BUS (Highspeed) 3
RS232 interfaces 1
LIN Master interfaces 1
Digital inputs 10
Analog inputs 43
Knock sensor interfaces 4
Digital outputs 13
Analog outputs 1
PWM outputs 11
Power outputs for injector control 8
Rated voltage 24 VDC
Ambiant temperature range -40 - 125 °C
Protection class (connector matted) IP6K9K
Height 334.0 mm
Width 296.0 mm
Depth 76.5 mm
Housing Die-cast aluminum housing
Weight 4.7 kg
Connector type TYCO MCP
Number of pins 248
Cooling Air-cooled / Fuel-cooled