ECU 2HD Engine control unit

The robust Liebherr engine control unit ECU 2HD is ideal for use in extreme conditions. The engine control is suitable for the operation of diesel engines and stationary gas engines with up to 12 cylinders. As a cascaded solution, up to 20 cylinders can be controlled. ECU 2HD also contains the necessary scope for the direct control 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 was developed in line with international safety standards and enables functional safety requirements of function chains to be fulfilled.

Supported emission standards Euro V / Euro VI / EPA Tier 4f / EU Stage IV / EU Stage V
Supported engines Diesel engines / Stationary gas engines (CNG)
Number of supported cylinders 12
Supported injection systems Common-Rail-Systeme
Integrated SCR control interface yes

Technical data

Supported emission standards Euro V / Euro VI / EPA Tier 4f / EU Stage IV / EU Stage V
Supported engines Diesel engines / Stationary gas engines (CNG)
Number of supported cylinders 12
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) 4
Digital inputs 20
Analog inputs 52
Knock sensor interfaces 6
Digital outputs 19
Analog outputs 1
PWM outputs 10
Power outputs for injector control 12
Rated voltage 24 VDC
Ambiant temperature range -40 - 125 °C
Protection class (connector matted) IP6K9K
Height 334.0 mm
Width 296.0 mm
Depth 85.9 mm
Housing Die-cast aluminum housing
Weight 5.4 kg
Connector type DEUTSCH DRC
Number of pins 280
Cooling Air-cooled / Fuel-cooled