Fig. 6.6: EECU
● Electrical Interfaces
o Outputs protected against
Short Circuit Ubatt
Short Circuit GND
o Diagnosis on Outputs and Sensor Inputs
Short Circuit Ubatt
Short Circuit GND
Open Load
o Sensor Inputs
Linearization of the input voltage
According to the sensor characteristics
● Monitoring of external interfaces
o External interfaces are monitored (sensors, actuators)
o A recognised failure (e.g. electrical) is internally reported
o Reported failures may inhibit other functions/monitoring
● SW Function Montoring
o Separately calculated Values are used for monitoring the main Engine Control Functions
(e.g. Engine Speed Calculation, Injection Quantity Calculation)
● EECU Hardware Monitoring provided
o Internal Supplies
o Internal Memories
o Internal communication
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