Iveco Stralis AT/AD. Manual — part 347
The new generation of Automated EuroTronic transmissions is IVECO’s response to new Customer expectations and changed
needs. The design of gearshifts with a new inspected and test transmission technology concept combined with advanced elec-
tronics has generated a system that guarantees:
- Economic efficiency
- Reliability
- Environmental acceptability
VIEW OF THE AUTOMATED EUROTRONIC TRANSMISSION
These modern and completely automated transmission systems with highly integrated components have already been developed
for EDC M6.2 center ELECTRONIC CONTROL DIESEL ENGINES.
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The system automates gear selection and meshing by automatically controlling the clutch and engine during gear shifting.
The operator decides when to shift gears by actuating a selector lever with no need to release the accelerator pedal.
Unlike previous versions, the Automated EuroTronic enables the operator to use COMPLETELY AUTOMATIC gear shifting
management.
The system enables automatic vehicle star and completely eliminates the clutch pedal. On receipt of vehicle and operator signals,
the electronic center controls all components involved, optimizes maneuvers and manages safety.
PRODUCTIVITY
Comfort
Safety
Con-
sumption
Average com-
mercial speed
Maintenance
courses
Payload
Operating
comfort
and less
physical and mental stress
•
•
•
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Precise and fast gear shifting
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•
•
Optimized use
•
•
No use errors
•
•
•
•
•
Selection of maximum rpm for
engine brake use
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•
•
•
Reduced tare
•
Longer linkage line life (the clutch
especially)
•
Noise abatement (Db)
•
Automatic gear shifting
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•
•
Design features
The entire transmission shaft and universal joint assembly is relieved of considerable load as gear shifting operations and proce-
dures are automated. The main Automated EuroTronic countershaft gearbox consists of the following:
- A couple of low and high speed gears (SPLITTER)
- 4 forward speeds + 1 reverse
The auxiliary box consists of a G.R.E. epicyclical reduction gear mounted at the back to double the number of gear ratios of the
main gearbox and enable 16 forward and 2 reverse speeds.
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Automated EuroTronic is a completely automatic transmission featuring a regulated dry clutch that eliminates the clutch pedal.
It consists of a reduced noise emission main gearbox with a planetary and split group.
The main unit meshes with front teeth and only the planetary and split group are synchronized.
The 16-speed Automated EuroTronic features sixteen forward and two reverse speeds.
The Instrument cluster supplied the operator with all necessary system information, such as gear meshed, disturbances and the
like.
The insert module and the clutch regulator unit are the most important structural elements for complete transmission automation.
The former consists of the transmission electronic system, switching valves, cylinder and sensors.
The transmission electronic system processes all input signals and inserts the speed via the electromagnetic valve and the switching
cylinder.
The clutch regulator is set electro-pneumatically and performs all friction actuation operations. In the manual mode, the operator
can easily select speeds with the speed selector lever.
In the automatic mode, the operator only has to actuate the accelerator or brake pedal.
Speeds are selected automatically by the system.
To respect anti-pollution regulations, all gears are helical teeth, which enabled abating noise level about 79 db.
8,5
002000t
1. Pressure limiter valve - 2. Normal purge valve - 3. 10-l reservoir - 4. Air pressure switch - 5. Pressure control socket - 6.
5-l reservoir - 7. Distributor element - 8. Controlled pressure valve - 9. Reservoir - 10. Normal purge valve - 11. APU Air
Processing Unit - 12. Compressor.
F = Clutch
C = Transmission
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Transmission/clutch connection diagram with the compressed air system
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