Table of Contents
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Status September 2003 (EvoBus-Service / AFT)
Page: 4 of 83
2.1
Introduction
11
2.2.1
Engine protection functions
14
2.2.2
Idling control
27
2.4.1
Throttle valve control
29
2.4.2
Throttle valve diagnosis
30
2.4.3
Turbocharger control
31
2.4.4
Turbocharger diagnosis
34
2.5.1
Gas mass calculation during starting
35
2.5.2
Gas mass calculation in normal case
35
2.5.3
Lambda control
37
2.5.4
Lambda control diagnosis
38
2.5.5
Overrun fuel cut-off (SAS)
38
2.5.6
Switch-on conditions for gas injection
38
2.6.1
Firing angle in starting mode
40
2.6.2
Firing angle determination in idling mode
40
2.6.3
Firing angle determination in partial-load and full-load mode
40
3.1.1
Block diagram
42
3.1.2
Connector assignment of EGM and ignition modules
43
3.1.3
Power supply of EGM
45
3.1.4
Power supply of ignition module
46
3.2.1
Active sensors
47
3.2.2
Special sensors
47
3.2.3
Passive sensors
48
3.3.1
Terminal 15
49
3.3.2
Terminal 50
49
3.3.3
Service switch Start/Stop
49
3.4.1
Gas injectors
50
3.4.2
Gas injector actuation
50
3.4.3
Proportional valve actuation
52
3.4.4
Lambda heating actuation
52
3.4.5
High-pressure cut-off valve actuation
52
3.4.6
Ignition module actuation
52
