Deutz EMS2, System Description

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EMS 2
System functions
4 System functions
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4.1 Introduction
The EMS 2 serves to electronically monitor the engine. Its functions include:
Engine protection functions
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Warning the operator if limit values are exceeded or not achieved.
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Reduction in engine power.
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Emergency engine shut-off if operating data exceed or do not achieve the shut-off limits.
Indication of maintenance requirements
in order to remind the operator and to reduce the consumption of operating media. The maintenance
intervals can be obtained from the DEUTZ engine operating instructions, Chapter 5.1.
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in the event of excessive air filter differential pressure.
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if the number of operating hours leads to the achievement of the next maintenance requirements.
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if the load population reaches a maintenance limit.
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if calculation of the engine operating statuses (temperatures, speed, etc.) results in the oil change limit's
being exceeded.
Data exchange
with other systems via the CAN interface, e.g. with the solenoid valve system (MVS):
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Transmission of the output reduction signal if limit values are exceeded.
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Engine shut-off via the CAN interface sets, e.g. the fuel injection quantity to zero.
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The integration of measurement data and fault messages via the CAN interface extends the input signals
of the EMS 2 for executing engine protection functions and system diagnosis (see above).
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Transfer of the EMS 2 measurement data to other systems.
Diagnosis of the entire system
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System self-diagnosis, i.e. of the control unit, the sensors and the actuators.
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Display of engine operating data and self-diagnosis data on a PC (ISO9141 / RS232).
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Forwarding of the engine operating data to the SAE-J1708/1587 interface for diagnostic and display
systems.
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Actuation of a telltale and output of a flashing code for fault identification.
Data recorder
Determination of the manner of operation, capacity utilisation and causes of engine failure.
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Recording the most important measurement variable signals.
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Determination of the load population.
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Storage of exceeded maintenance intervals.
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Documentation of hours of engine operation.
Engine operation display
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Output of a signal (telltale or relay) as soon as the speed exceeds 400 rpm.
1)
Not all functions are available in all applications.