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Citroen-Automatic gearboxes
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They are usually fitted to the top of the
range PEUGEOT models.
They are connected to the ES and DT
engine families and are manufactured
by the parts supplier AISIN AW.
Automatic gearboxes with 6 forward
gears with converter locking:
- Maximum torque: 450 Nm.
- Weight: about 94 kg.
It's a self-adjusting automatic gearbox.
AM6
REMINDERS THEORY REVIEW
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The AM6 automatic
gearboxconverter
THE TORQUE CONVERTER
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…;;
THE TORQUE CONVERTER
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Turbine
Locking
piston
Stator
Pump or
Impeller
THE TORQUE CONVERTER
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Locking
piston
Single-faced clutch discVibration
damper
THE TORQUE CONVERTER
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The torque
converter.
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Position
THE TORQUE CONVERTER
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Operating principle
THE TORQUE CONVERTER
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Composition
The pump or impeller is turned
by the engine
The turbine turns the automatic
gearbox mechanism.
oil
THE TORQUE CONVERTER
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Pump or impeller
Turbine Direction engine turns in
THE TORQUE CONVERTER
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Turbine Pump or impeller
Stator
THE TORQUE CONVERTER
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Pump or impeller
Turbine
THE TORQUE CONVERTER
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THE TORQUE CONVERTER
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Engine Automatic
gearbox
For engine speeds
less than about 2,000
rpm
(stator free)
Stator fixed
(rotation impossible)
Multiplication of
transmitted torque
THE TORQUE CONVERTER
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EngineAutomtic
gearbox
For engine speeds
greater than about
2,000 rpm
(stator fixed)
Transmission of engine
torque
THE TORQUE CONVERTER
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THE COMPOSITE EPICYCLICAL DRIVE
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S1
S2
S3
PC1
R1
OutputR3
SSR1
R2
R3
B2 B1RL
R1 R1 R1 R1 àààà
R3 R3 R3 R3 àààà
B1 B1 B1 B1 àààà
B2 B2 B2 B2 àààà
RL RL RL RL àààà
R2 R2 R2 R2 àààà
THE COMPOSITE EPICYCLICAL DRIVE
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S1
S2
S3
PC1
R1
OutputR3
PCR1
R2
R3
B2 B1RL
R1 R1 R1 R1 àààà
R3 R3 R3 R3 àààà
B1 B1 B1 B1 àààà
B2 B2 B2 B2 àààà
RL RL RL RL àààà
FixFixFixFix S2 to PC1S2 to PC1S2 to PC1S2 to PC1
TurnTurnTurnTurn PCPCPCPCR2 R2 R2 R2 àààà
FixFixFixFix S3 to PC1S3 to PC1S3 to PC1S3 to PC1
BrakeBrakeBrakeBrake S3S3S3S3
BrakeBrakeBrakeBrake PCPCPCPC
Brake PC in one Brake PC in one Brake PC in one Brake PC in one
directiondirectiondirectiondirection
THE COMPOSITE EPICYCLICAL DRIVE
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6
5
4
3
2
1
1a
N
R
R
RLB2B1R3R2R1
THE COMPOSITE EPICYCLICAL DRIVE
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The electrical
elements
AM6
THE ELECTRICAL ELEMENTS
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GEARBOX SPEED SENSORS
Gearbox entry speed (turbine)
Gearboxoutput speed
THE ELECTRICAL ELEMENTS
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THE MULTIFUNCTION CONTACTOR
THE ELECTRICAL ELEMENTS
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TEMPERATURE SENSOR
THE ELECTRICAL ELEMENTS
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ELECTRONIC VALVES
SLC1
SLC2SLC3
SLB1
SLT
SLU
THE ELECTRICAL ELEMENTS
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the transmission
control unit
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DRIVER
ENVIRONMENT
PROGRAMMES
LAA
Self adjusting gear
change programme
RULE 1
RULE 2
RULE 3
RULE 4
RULE 5
Eco
no
mic
Sp
ort
THE TRANSMISSION CONTROL UNIT
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The accelerator position
The speed the accelerator is moved
The frequency of kick down
The time spent in kick down
The use of the brakes
DRIVER INFORMATION
THE TRANSMISSION CONTROL UNIT
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For a 50 % loadTime
1 km50 Kph
60 Kph
70 Kph
1.12 minute
1 minute
0.51 minute
EXTERNAL INFORMATION
THE TRANSMISSION CONTROL UNIT
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"GREEN"
"ADAPTIVE"
"ADAPT TO THE DESCENT"
"TRAFFIC JAM"
"SPORT"
The programmes:
"SNOW"
THE TRANSMISSION CONTROL UNIT
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"ESP"
"MANUAL"
"CRUISE CONTROL / SPEED LIMITER"
"OVERHEATING PROTECTION"
The programmes:
THE TRANSMISSION CONTROL UNIT
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Engine loading (%)
Vehicle speed (kph)
EXAMPLES OF RULES
Foot raised
Foot to the
floor
Kick Down
THE TRANSMISSION CONTROL UNIT
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Foot raised
Foot to the floor
Kick Down
95
THE TRANSMISSION CONTROL UNIT
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Prevent a change to a higher gear
Anticipate down-shifting
Prevent a down-shift request
Prevent a gear change related to a mode change
Prevent a request for multiple gear changes
Prevent a request to change up in a corner
Comfort and adaptability strategies.
THE TRANSMISSION CONTROL UNIT
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'CHANGE OIL' FUNCTION
TORQUE REDUCTION
STOP AIR CONDITIONING COMPRESSOR
Special sets of rules:
THE TRANSMISSION CONTROL UNIT
