Download - 4X4
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SISTEMA 4X4
- EST (Transfer con cambio eléctrico)
- ATT (Transferrencia de par activa)
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SISTEMA 4X4¿Qué es EST y ATT?
- EST: En el cambio controlado eléctricamente para el sistema de 4X4, donde el clientepuede efectuar el cambio de 4X2 a 4X4 hasta una velocidad de 80 Km/h..
- ATT: Transferencia de par activo, es decir, el cliente no tiene que preocuparse de activar o desactivar el sistema de 4X4, sino que este cambio es realizadoelectrónicamente, transfiriendo el par precisado desde el eje trasero al delantero.
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SISTEMA 4X4
EST & ATT
Sensor del ejetrasero
Sensor del ejedelantero
Discos de embrague
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SISTEMA 4X4Drive type Drive item Drive mode Drive status Useful condition
2H2WD, Rearwheel drive Use on the roadway.
* Use on the off-road or snowy and rainy road having slippery roadsurface.* When turning on the roadway at low speed, vibration and noisehappens by tight corner braking.
4L 4WD LOWUse in the condition which driving force is required like escaping fromrough way and towing.
2H ↔ 4H 2WD ↔ 4WDPossible to transfer 2WD into 4WD and vice versa at 80kph or belowduring driving.
* Necessary to stop the vehicle for transfer
- M/T vehicle : Transfer after pressing the clutch pedal.
- A/T vehicle: Transfer after positioning the A/T lever to “N”.
* All vehicles with 4L mode should stop the vehicle for transfer.
* Use on the various road surfaces including roadway, off-road, orsnowy and rainy road surface.* Using multiple clutch, control the revolution difference between frontand rear wheels electronically.So this mode can correspond to the various road surfaces bycontrolling the ATT unit automatically.
LOW 4WD LOW Refer to 4L of part time.* Necessary to stop the vehicle for transfer
M/T vehicle: Transfer after pressing the clutch pedal.
A/T vehicle: Transfer after positioning the A/T lever to “N”.
* All vehicles with 4L mode should stop the vehicle for transfer.
Active TorqueTransfer
(ATT type)
Drive modeAUTO 2WD ↔ 4WD
TransferAUTO ↔
LOW4WD(H) ↔
4WD(L)
Electric ShiftTransfer
(EST type)
Drive mode 4H 4WD HIGH
Transfer4H ↔
4WD(L)4WD(H) ↔
4WD(L)
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EST
Orificio de vaciado
Orificio de llenado
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EST
FRRD (Free Running Differential)
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EST
FRRD (Free Running Differential)
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EST
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EST PALIERTORNILLO
PIÑON DE ATAQUE CORONA
ARBOL DE TRANSMISION DELANTERO
FRRD (Free Running Differential)
Bomba de aire
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EST
FRRD (Free Running Differential)
PLANETARIO
SATELITE
PORTASATELITES
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ESTFRRD funcionamiento (4WD)
ENGINE
Dog clutch Dog clutch engagedengaged
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ESTFRRD funcionamiento (2WD)
ENGINE
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ESTComponentes
Eje de entrada
Eje delantero
Eje trasero
Planetarios(4 LOW)
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ESTComponentes
Carcasa del embrague
Collar
Embrague magnético
Sensor de velocidad
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ESTComponentes
4LOW
Horquilla
Cadena
Eje selector
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EST
Componentes
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EST
Horquillareductora
Cadena
4H
Horquilla
4L
MPS
Motor
Eje selector
Distribución de fuerzas
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EST
2H Mode(Rear Wheel Drive)
Distribución de fuerzas 2H
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EST
Distribución de fuerzas 4H
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EST2WD
Desplazable4L EMC
RR P/S
FRT P/S
Horquilla
Motor
Eje selector
Input
MPS
Cadena
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EST4WD
Desplazable4L
EMC
RR P/S
FRT P/S
Horquilla
Motor
Eje selector
Input
MPS
Cadena
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EST
Distribución de fuerzas 4L
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EST(2H, 4H) conexión 1:1
2H, 4H conexión 1:1 4L conexión 2,48:1
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EST(2H, 4H) conexión 1:1
Reductor
Entrada
Horquilla
Eje selector
Planetarios
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EST4L conexión 2,48:1
Reductor
Entrada
Horquilla
Eje selector
Planetarios
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ESTComponentes – selector 2H/4H/4L
2H-4H-4L switch
1) 2H: Sólo ruedas traseras
2) 4H:Se puede conectar mientras no se sobrepase80 Km/h. Cuando se ha realizado el cambio, se ilumina la luz del cuadro.
3) 4L:El vehículo debe de estar parado o a menos de 3 Km/h. Se debe pisar el ambrague para el cambio manual o poner la palanca selectoraen Neutro para el cambio automático. Cuandose realiza el cambio se enciende la luz del cuadro.
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EST
MOTOR
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EST
MOTOR
4L
2H
4H
Posición
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EST
MPS
TCCM
5V
5V
5V
5V
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ESTMPS señales (2H 4H)
Position 1
Position 2
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ESTMPS señales (4H 4L)
Position 1
Position 2
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ESTMPS señales (2H 4H)
Position 4
Position 3
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ESTMPS señales (4H 4L)
Position 4
Position 3
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ESTEmbrague magnético (2H 4H)
11sec.
2H 4H
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ESTDiagrama de bloques
Entradas Salidas
TCCMSensor de posiciónPosición 1Posición 2Posición 3Posición 4
Interruptor EST
Señal A/T ‘N’
Sensor de velocidad
Motor
Mic
ro p
roce
ssor
Interruptor del embrague
Embrague magnético
Luz 4L
Luz 4X4
RO
MK-Line
FRRD válvula solenoide
RAM
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ESTTCCM
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ESTConector de diagnosis
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ESTCódigos de avería
Los códigos se leen por destellos de la luz del cuadro
Decimal Binary Fault
1 001 TCCM (Transfer case control module)
2 010 Shift motor
3 011 EMC (Electro magnetic clutch)
4 100 Speed sensor
5 101 FRRD air pump motor
6 110 2H-4H-4L switch
7 111 MPS (Motor position sensor)
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ESTLista de datos nominales
Signal
Type Level1 A1 MOTOR OUTPUT IDLE("N") DC Vbatt * Current :
(2H-4H-4L) ↑ 0V INRUSH(+) : 4.64A
2 A2 MOTOR OUTPUT IDLE("N") DC Vbatt INRUSH(-) : 4.4A
(2H-4H-4L) ↑ 0V Operation : 0.6A
3 A3 GND
4 A4 CLUTCH COIL IDLE DC Vbatt * Current :
(2H →4H →4L) ↑ 0V 4.28A
5 A5 POSITION 1 MTR IDLE 2H CODE : 1010 * MTR POS. CODE :
(P/R/N/D/2/L) 2H →4H CODE : 0011 1/2/3/4 = XXXX
4H →4L CODE : 1100 (1 = 5V dc)
LOGIC HI(1) : 5V (0 ≤ 0.5V dc)
LOGIC LO(0) : 0.5V or less
No RemarksItems Condition
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ESTLista de datos nominales
Signal
Type Level6 A6 SPEED SNSR IDLE PULSE * VSS of 60KPH :
HI : 16.4V
135Hz at 60KPH LO : -6.4V
7 A7 2H SW SW OFF DC 4.5 ∼5.5V
SW ON ↑ 0.5V or less
8 A8 4H DISPLAY SW OFF DC Vbatt
SW ON ↑ 0.5V or less
9 A9 BATT IGN OFF DC Vbatt
IGN ON ↑ Vbatt
10 A10 BATT IGN OFF DC Vbatt
IGN ON ↑ Vbatt
11 A11 GND
No RemarksItems Condition
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ESTLista de datos nominales
Signal
Type Level12 A12 POSITION 2 MTR IDLE 2H CODE : 1010 * MTR POS. CODE :
(P/R/N/D/2/L) 2H →4H CODE : 0011 1/2/3/4 = XXXX
4H →4L CODE : 1100 (1 = 5V dc)
LOGIC HI(1) : 5V (0 ≤ 0.5V dc)
LOGIC LO(0) : 0.5V or less
13 A13 4L SW SW OFF DC 4.5 ∼5.5V
SW ON ↑ 0.5V or less
14 A14 INHIBITOR SW(AT) N DC 0V
CLUTCH INTERLOC P/R/D/2/L ↑ Vbatt
SW(MT)
15 A15 4L DISPLAY IDLE("N") DC Vbatt
↑ 0V
16 A16 MOTOR OUTPUT IDLE("N") DC Vbatt
(4L-4H-2H) ↑ 0V
No RemarksItems Condition
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ESTLista de datos nominales
Signal
Type Level17 A17 MOTOR OUTPUT IDLE("N") DC Vbatt
(4L-4H-2H) ↑ 0V
18 A18 COMMON RETURN IGN OFF DC 0.9V or less
IGN ON ↑ 4.75 ∼5.25V
19 A19 IGN 1 IGN OFF DC 0V
IGN ON ↑ Vbatt
20 A20 POSITION 4 MTR IDLE 2H CODE : 1010 * MTR POS. CODE :
(P/R/N/D/2/L) 2H →4H CODE : 0011 1/2/3/4 = XXXX
4H →4L CODE : 1100 (1 = 5V dc)
LOGIC HI(1) : 5V (0 ≤ 0.5V dc)
LOGIC LO(0) : 0.5V or less
No RemarksItems Condition
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ESTLista de datos nominales
Signal
Type Level21 A21 POSITION 3 MTR IDLE 2H CODE : 1010 * MTR POS. CODE :
(P/R/N/D/2/L) 2H →4H CODE : 0011 1/2/3/4 = XXXX
4H →4L CODE : 1100 (1 = 5V dc)
LOGIC HI(1) : 5V (0 ≤ 0.5V dc)
LOGIC LO(0) : 0.5V or less
22 A22 DIA. DISPLAY In comm. PULSE 4V or more
0∼0.9V
23 A23 C.A.D.S IDLE OFF Vbatt
(2H →4H) ON 0.5V or less
No RemarksItems Condition
FRRD SOLENOID
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ESTDiagrama eléctrico
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ATT
TRANSFER ELECTRONICO
(ATT)TRANSMISION DELANTERA
TRANSMISION TRASERA
EJE TRASERO
EJE DELANTERO
CAMBIO MANUAL
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ATTIntroducción
Dependiendo de la diferencia de velocidad de las ruedas delanteras y de las traseras, se transmite el par de las ruedas traseras a lasdelanteras de forma automática.
Si no hay diferencia de velocidad, el par esllevado a las ruedas traseras en un 100%, a medida que las ruedas delanteras giren másdespacio que las ruedas traseras, se varepartiendo el par hasta un máximo de 50% a los dos ejes.
Entrada
Ejedelantero
Eje traseroPlanetarios
Embraguemultidisco
Bomba de aceite
ATT (Active torque transfer)
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ATT
Active Torque Transfer (ATT)
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Reparto del parReparto del par
TraseroDelantero
Embrague multidisco
Embraguemarnético
ATTSelección
TraseroDelantero
Embrague multidisco
Embraguemagnético
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ATTComponentes
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ATT
Vistas
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ATT
VistasEmbrague múltiple
Planetarios
Embrague magnético
Horquilla
Sensor de posición del
motor
Eje selectorMotor
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ATTSensores de velocidad
Sensor de velocidad del ejedelantero
Sensor de velocidad del ejetrasero
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ATTComponentes – Embrague multidisco
Lleva el sistema tres bolas de acero con tresrampas para que se comprima el embragursea cual sea el sentido de giro.
El sistema lleva 11 discos.
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ATTComponentes – Eje selector
Muelle de torsión
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ATTComponentes – Planetarios
A
B
En caso de conexión por el dentado A : La relación es de 1:1
En caso de conexión del dentado B : La relación es de 2,48:1 (4L)
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ATTComponentes – bomba de aceite
Filtro
La bomba está instalada para lubricar todaslas piezas del transfer.
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ATT
Transmisión de fuerzas
Embrague multidisco
EMC
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ATT
Transmisión de fuerzas
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ATT
Distribución de fuerzas
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ATTDiagrama de bloques
TCCMSensor de posición motorPosición 1Posición 2Posición 3Posición 4
Entradas
Selector Auto/Low
Señal relé A/T “N”
Sensor eje delantero
Sensor eje trasero
Señal acelerador
Inerruptor embrague
Motor
Embrague magnético
Luz del cuadro LOW
Luz del cuadro 4X4
K-Line
Salidas
Mic
ro p
roce
ssor
RO
MR
AM
Señal ABS
Interruptor de freno Señal 4L al TCM
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ATTEntradas y salidas
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ATTComponentes – Embrague magnético EMC
Embrague multidiscoEMC
Cuando se aplica corriente al EMC, se presiona el embraguemultidisco, de esta manera, se transmite par al eje delantero.
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ATTComponentes – Conector
4
TCCM
EMCPositivo al sensor del ejedelantero
Positivo al sensor del eje delantero
Señal del sensor del eje delantero
Bobina del embraguemagnético
Señal del sensor del eje trasero
Masa del sensor del ejedelantero Masa del sensor
del eje trasero
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ATTComponentes – Motor y sensor de posición MPS
MotorPosicionador
Posición 1 Posición 2
Posición 4
Ground Posición 3
Motor Lo-Hi
Motor Hi-Lo
Es un motor de corriente continua controlado por la TCCM. Su misión es pasar de H a L y viceversa.
Resistencia de la bobina : 0.78 ± 0.078Ω
* El motor del ATT y del EST no son intercambiables.
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ATTSeñales del MPS (AUTO LOW)
Position 1
Position 2
3.5 GSL with TOD
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ATTSeñales del MPS (AUTO LOW)
Position 3
Position 4
3.5 GSL with TOD
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ATTComponentes – Motor y sensor de posición
5V
TCCM
MPS
M
1
2
17
16
12V
Giro a derechas (Hi Lo) : Terminales 1,2 son B+ (12V), terminales 16,17 son masa.Giro a izquierdas (Lo Hi) : Terminales 1,2 son masa, terminales 16,17 son B+ (12V).
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ATTComponentes – Sensores de los ejes delantero y trasero
Sensor Hall
Rueda dentada del sensor delantero (30 dientes)
Rueda dentada del sensor trasero (30 dientes)
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TODComponents - Indicator
IGN ON ON (3sec) --> OFF at IG. ON
or 'AUTO mode' holding
IDLE
'AUTO mode' holding
ON (3sec) --> OFF at IG. ON
4LOW indicator :
4LOW indicator :
DescriptionTOD SWmode
INDICATOR
P/R/D/2/1
N
4LOW W/Lamp
Blinking OFF
OFF
ON (3sec) ON (3sec)
OFF
AUTO→ 4LOW
4LOW→ AUTO
ON (3sec) ON (3sec)
OFF
OFF
6 times blinking --> Shift motor ON --> 1 time blinking --> ON
6 times blinking --> Shift motor ON --> 1 time blinking --> OFF
Condition A/T LEVER
7 times blinking--> ON
7 times blinking--> OFF
AUTO
AUTO
AUTO→ 4LOW
4LOW→ AUTO
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ATTComponentes – Relé del A/T posición “N” (EST / ATT)
IG1
N
Inhibitor switch
Neutral relay TCM
TCCM
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ATTCódifos
de averíaDTC Content
P1725 TOD CONTROL MODULE(CHECKSUM) ERRORP1726 THROTTLE POSITION INPUT - LOSS OF SIGNALP1727 THROTTLE POSITION INPUT - OUT OF RANGEP1728 EMC - OPEN/SHORT TO BATTERYP1729 EMC - SHORT TO GROUNDP1730 FRONT SPEED SENSOR - LOW INPUTP1731 FRONT SPEED SENSOR - HIGH INPUTP1732 REAR SPEED SPEED SENSOR - LOW INPUTP1733 REAR SPEED SPEED SENSOR - HIGH INPUTP1734 SPEED SENSOR REFERENCE - LOW INPUTP1735 SPEED SENSOR REFERENCE - HIGH INPUTP1736 SHIFT MOTOR - OPENP1737 SHIFT MOTOR - OPEN/SHORT TO GROUNDP1738 SHIFT SYSTEM TIMEOUTP1739 GENERAL POSITION ENCODER FAULTP1740 POSITION 1 - SHORT TO GROUNDP1741 POSITION 2 - SHORT TO GROUNDP1742 POSITION 3 - SHORT TO GROUNDP1743 POSITION 4 - SHORT TO GROUND
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ATTValores nominales de entradas y salidas en el TCCM (2.5 TCI – ATT)
Signal
Type Level1 A1 MOTOR OUTPUT IDLE("N"단) DC Vbatt
(HI-LOW) ↑ 0V
2 A2 MOTOR OUTPUT IDLE("N"단) DC Vbatt
(LOW-HI) ↑ 0V
3 A3 EMC Vehicle PULSE Vbatt * 4LOW DUTY(-):
driving (PWM) 0V 88.72%
FREQ. : 50Hz
DUTY(-) : 0 ∼ 88%
4 A4 BATT IGN OFF DC Vbatt
IGN ON ↑ Vbatt
5 A5 IGN 1 IGN OFF DC 0V
IGN ON ↑ Vbatt
6 B1 ENCODER GND
7 B2 DIAGNOSTIC LAMP OFF DC Vbatt
DISPLAY LAMP ON ↑ 0.5V or less
No Items Condition Remarks
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ATTValores nominales de entradas y salidas en el TCCM (2.5 TCI – ATT)
Signal
Type Level8 B3 TPS(PWM) ACCEL C.T PWM HI : 4V MIN
& W.O.T LO : 0.9V MAX
FREQ. : 100Hz
DUTY(-) : C.T - 10%
W.O.T - 83%
9 B4 AUTO/LOW SW IDLE AUTO 4V or more
(A/T LEVER LOW 0.9V or less
"N") (AUTO mode : 4V or more)
10 B5 SHIFT MOTOR IDLE →AUTO CODE : 0010 →0000 * MTR POS. CODE:
POSITION 2 (A/T LEVER →LOW CODE : 0101 →0000 1/2/3/4 = XXXX
"N") LOGIC HI(1) : 4.5V or more
LOGIC LO(0) : 0.5V or less
11 B6 FRT SPEED SNSR Vehi cl e PULSE 4V or more * VSS 60KPH :
driving 0∼0.9V 985Hz
30PULSE/PROPSHAFT REV.
DUTY(-) : 50%
No Items Condition Remarks
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ATTValores nominales de entradas y salidas en el TCCM (2.5 TCI – ATT)
Signal
Type Level12 B7 N.A
13 B8 SPEED SNSR GND
14 A6 MOTOR OUTPUT IDLE("N") DC Vbatt
(HI-LOW) ↑ 0V
15 A7 MOTOR OUTPUT IDLE("N") DC Vbatt
(LOW-HI) ↑ 0V
16 A8 SPEED IGN OFF DC 0.9V or less
REFERENCE IGN ON ↑ 4.75 ∼5.25V
17 A9 GND FOR ECU
18 A10 GND FOR ECU
19 A11 BATT IGN OFF DC Vbatt
IGN ON ↑ Vbatt
20 A12 K-LINE I n comm. PULSE LOGIC "0" : Vbatt 20% or less
(10.4Kbps) LOGIC "1" : Vbatt 80% or more
No Items Condition Remarks
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ATTValores nominales de entradas y salidas en el TCCM (2.5 TCI – ATT)
Signal
Type Level21 B9 4LOW DISPLAY SW OFF DC Vbatt * IGN ON :
SW ON ↑ 0.5V or less Turned on for 3sec.
22 B10 N.A
23 B11 N.A
24 B12 TRANS. NEUTRAL N DC 0.9V or less
P/R/D/2/L ↑ 4.5 ∼5.5V
25 B13 ABS INPUT ABS OFF DC 4.5 ∼5.5V
ABS ON ↑ 0.9V or less
26 B14 BRAKE SW SW OFF DC 0.9V or less
SW ON ↑ Vbatt
27 B15 SHIFT MOTOR IDLE →AUTO CODE : 0010 →0000 * MTR POS. CODE:
POSITION 1 (A/T LEVER →LOW CODE : 0101 →0000 1/2/3/4 = XXXX
"N") LOGIC HI(1) : 4.5V or more
LOGIC LO(0) : 0.5V or less
No Items Condition Remarks
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ATTValores nominales de entradas y salidas en el TCCM (2.5 TCI – ATT)
Signal
Type Level28 B16 SHIFT MOTOR IDLE →AUTO CODE : 0010 →0000 * MTR POS. CODE:
POSITION 3 (A/T LEVER →LOW CODE : 0101 →0000 1/2/3/4 = XXXX
"N") LOGIC HI(1) : 4.5V or more
LOGIC LO(0) : 0.5V or less
29 B17 RR SPEED SNSR Vehi cl e PULSE 4V or more * VSS 60KPH :
driving 0∼0.9V 966Hz
30PULSE/PROPSHAFT REV.
DUTY(-) : 50%
30 B18 SHIFT MOTOR IDLE →AUTO CODE : 0010 →0000 * MTR POS. CODE:
POSITION 3 (A/T LEVER →LOW CODE : 0101 →0000 1/2/3/4 = XXXX
"N") LOGIC HI(1) : 4.5V or more
LOGIC LO(0) : 0.5V or less
No Items Condition Remarks
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ATTDiagrama eléctrico