MTU 4R 1000 SERIES, Operating Instructions Manual

Page: 20 / 88

:
Mounting brackets
;
Exhaust gas inlet from engine
=
Exhaust gas aftertreatment control unit (ACM)
?
NOx sensor at exhaust gas aftertreatment unit outlet
A
Exhaust gas temperature sensor downstream of the SCR catalytic converter
Electronic engine management
The engine system is equipped with an elec-
tronic engine management system which
comprises the following control units:
R
Engine management control module
(MCM)
R
Drive control system unit (CPC)
R
Exhaust gas aftertreatment control unit
(ACM)
The control units are connected in an elec-
tronic network. Data is exchanged via CAN
(Controller Area Network).
In addition to the engine, the exhaust gas
aftertreatment and the connection on the
vehicle/device, the electronic engine man-
agement system also monitors itself.
Depending on the malfunctions/failures
which occur, warning and information dis-
plays are activated (
Y
page 20). The mal-
function is stored in the fault memory and if
necessary a safety and emergency mode is
automatically selected (
Y
page 36). If the
electronic engine management control
detects a fault, the fault code is stored in the
control units. It can then be read by a qualified
specialist workshop (
Y
page 9) using a diag-
nostic tester.
18
Electronic engine management
At a glance