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Fav 900
Engine / Injection Pump
Speed Control EDC
A
General
Fav 900 Chassis Number 23/3001 and up
25.11.2000
2710
000006
A
a
1/2
Capitel
Docu-No.
Index
Date
Version
Page
Speed Control EDC
Text-module
Speed Control EDC Injection System via:
Bullet-List
Possibilities of Speed Control
●
Pedal position Sensor EST (B029)
●
Hand Throttle Position Sensor (B035)
●
Memory Keys MIN. and MAX. on Joystick A003
●
Setting Speed MIN. and MAX. for Memory Keys using Terminal A008
Text-module
Speed Control procedure
Accelerator pedal Position Sensor B029 as Well as Terminal A008 are diectly connected to EST
Control Module A002 .
Hand Throttle position Sensor B035 as Well as Memory Keys on Joystick A003 are connected to EST
Control Module A002 and Comfort -BUS via Side Console A004 .
EST Control Module A002 processes Sensor Signals and leads signals according to priority via
Transmission Bus to the EDC Control Module A021
EDC Control Module controls the Injection Pump VP44 to rech the required Engine Speed.
Note:
It is possible to fool Speed settings (Priority - Processing within EST Control Module A002)
Note:
Engine without load: Actual Engine speed (indicated on dash Panel) runs approx. 30 Rpm below
the selected speed on the Terminal.
Text-module
Monitoring and securing Speed Control
Bullet-List
●
Accelerator Pedal position Sensor EDC (B038)
Note:
Pedal position Sensors B029 and B038 are actuated simultaneously by the accelerator Pedal.
Monitoring Speed Control
Accelerator Pedal position Sensor B038 is connected to EDC Control Module A021 .
EDC Control Module A021 emits "requested Speed " from B038 onto EST Control Module A002
EST Control Module A002 compares Signals from Pedal position Sensor B029 with Pedal position
Sensor B038
In case of Deviations (Plausibility Check) a Failure Code will be displayed on Dashpanel A007
Securing Speed Control
In Case of EST Control Module Failure A002 or Transmission Bus Failure Speed Control Will occur
throug Pedal position Sensor B038. (restricted operation, no Hand Throttle or Memory keys Operation )
In case of simultaneous Failure of both Pedal position Sensors, Pump Control Module A020 will
Automatically set 720 Rpm (Auxilliary Operation)
(Consult : Diagnostic EDC, Chapter 2000 Reg.B)