Tài liệu xe ô tô Lexus Hybrid - P1

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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
Contents
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2
Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission
LF1A Transfer
Active Stabilizer Suspension System
Steering
3
Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission
Overall
–
L110F hybrid transmission mainly consists of the
following components
-A -W
MG1
MG2
2-stage Motor Speed
Reduction Device
Mechanical
Oil Pump
(driven by the
engine)
Hydraulic
Control Unit
Power Split Device
Transfer
(LF1A)

Electric
Oil Pump
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission
Specification
-A -W
←1.90Hi
Lo
←
•
Generator (Regenerative Braking)
•
Drive motor
Function
←Water-cooledSLLC
Cooling System
N.A.Water-cooledATF
Reduction
Ratio
←3.90
←
•
Generator
•
Starter Motor
Function
←ATF-WSOil Type
5.4 (5.7, 4.7)5.7 (6.0, 5.0)
Oil Capacity

[Liters (US qts, Imp. qts)]
127 (280)133 (293)Service Weight*
2
[kg (lb)]
Max. System Voltage
Max. Torque
Max. Output [kW (HP]
Type
Max. System Voltage
Type
MG2
MG1
←AC 650 V
275 Nm (203 ftlbf)300 Nm (221 ftlbf)*
1
147 kW (197 HP)165 kW (221 HP)*
1
←Permanent Magnet Motor
←AC 650 V
←Permanent Magnet Motor
L110 (GS450h)L110F (LS600hL / LS600h)Transmission Type
*
1
: These are tentative values.
*
2
: Weight shows the figure with the engine oil and engine coolant fully filled.
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission

Gear Train
Engine
Damper
MG1
2-stage Motor Speed
Reduction Device
Power Split Device
Ring Gear
Pinion Gear
Ring Gear
Sun Gear
Front Sun
Gear
Long Pinion Gear
Rear Sun
Gear
Planetary Carrier
Planetary
Carrier
Short
Pinion Gear
Output
Shaft
MG2
B1 B2
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission
Gear Train
MG1

MG2
Engine
To Transfer
-A -W
Power Split Device
•
Sun Gear: MG1
•
Planetary Carrier: Engine
•
Ring Gear: Wheel
B1 B2
2-stage Motor Speed Reduction Device
•
Front Sun Gear: B1
•
Rear Sun Gear: MG2
•
Planetary Carrier:Wheel
•
Ring Gear: B2
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission
Gear Train
-A -W
Power Split Device
The power split device distributes the
engine power as appropriate to
directly drive the vehicle as well as

the generator.
2-stage Motor Speed Reduction Device
The 2-stage motor speed reduction device
controls the MG2 motor speed in two stages,
between the low-speed range and high-speed
range.
22Pinion Gear
34Sun Gear
78
Number of Teeth
Ring Gear
Gear
28Short Pinion Gear
20Long Pinion Gear
27Front Sun Gear
30Rear Sun Gear
78
Number of Teeth
Ring Gear
Gear
Sun Gear
(connected to the MG1)
Ring Gear
(connected to the
MG2 and output
shaft)
Planetary Carrier
(connected to the engine)
Pinion Gear
Planetary Carrier

(connected to the
propeller shaft)
Rear Sun Gear
(connected to
the MG2)
Ring Gear
(connected to the
No. 2 brake [B2])
Front Sun Gear
(connected to the No. 1
brake [B1])
Short Pinion
Gear
Long Pinion
Gear
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission
2-stage Motor Speed Reduction Device
–
Realize high speed and high torque by compact MG2
-A -W
Torque
Vehicle Speed
Range of Lo Gear
Drive
(for high torque)
Range of Hi Gear Drive
(for high speed)
For -A

73.0 (45.3)
42.3 (26.3)
85.2 (52.9)49.3 (30.6)
Vehicle Speed [km (mph)]
Lo
Hi
For -W
Gear Position
NOTE: These are fundamental charts.
[Normal Driving Example]
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission
2-stage Motor Speed Reduction Device
–
B1 and B2 Control
-A -W
Linear
Solenoid
Valve
Control
Valve
Line Pressure
Hi
Lo
READY
IG OFF

D, S
N

R


P
B2B1Shift Position
B1
SL1
B2
SL2
HV
ECU
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission
2-stage Motor Speed Reduction Device
–
Operation
-A -W
[Lo Gear]
[Hi Gear]
MG2
B1 B2
MG2
B1 B2
B1 B2
B1 B2
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
MG1
L110F Hybrid Transmission

Nomographic Chart
–
Power Split Device
-A -W
Carrier
(Engine)
Ring Gear
(Wheel)
+
-
rpm,
Torque
2.294
1
2294
1000
Sun Gear
(MG1)
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
-
+
rpm,
Torque
Rear
Sun Gear
(MG2)
Carrier
(Wheel)
1

3.90
3900
B2
1000
L110F Hybrid Transmission
Nomographic Chart
–
2-stage Motor Speed Reduction Device
•
Lo Gear
-A -W
Reduction Ratio: 3.900
B1
Ring
Gear
(Lo)
Front
Sun Gear
(Hi)
MG2
B1 B2
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
MG2
B1 B2
L110F Hybrid Transmission
Nomographic Chart
–
2-stage Motor Speed Reduction Device
•

Hi Gear
-A -W
Reduction Ratio: 1.900
-
+
rpm,
Torque
Rear
Sun Gear
(MG2)
Ring
Gear
(Lo)
Carrier
(Wheel)
1
1.9
1900
B2
1000
Front
Sun Gear
(Hi)
B1
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission
Nomographic Chart
–
Total nomographic chart

-A -W
-
+
rpm,
Torque
Rear
Sun Gear
(MG2)
Linked
Sun
Gear
(MG1)
Carrier
(Engine)
Ring
Gear
(Wheel)
B2 B1
Ring
Gear
(Lo)
Front
Sun Gear
(Hi)
+
-
rpm,
Torque
Carrier
(Wheel)

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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission
Lubrication System
–
L110F has two oil pumps
•
Mechanical oil pump: Driven by the engine
•
Electric oil pump: Supplies hydraulic pressure when
the engine is stopped
-A -W
Mechanical Oil Pump
Power Split
Device
Mechanical
Oil Pump
Oil Pump
Drive Gear
Engine
MG1
Electric Oil Pump
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
Electric Oil Pump
Oil Pump Controller
L110F Hybrid Transmission
Lubrication System
–
Electric oil pump is controlled by the oil pump

controller in accordance with the signal from HV ECU
-A -W
HV ECU
OPST
OPM1
TOPM
SIG
OPST
Motor Speed
(Duty Signal)
Motor
(3 Phase)
Oil Pump State
(Duty Signal)
Oil Pump
Controller
Coil Temp.
Sensor
Motor Position
Sensor
U V W
OHU
OHV
OHW
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission
Lubrication System
–
Electric oil pump

•
Oil pump state signal contains 2 information (motor
state information and motor speed information), and
these information are sent alternately to the HV ECU
-A -W
HV ECU
Oil Pump
Controller
1: Motor State Info.
2: Motor Speed Info.
Oil Pump State Signal
1 1 1
2 2 2
Duty Signal
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission
Lubrication System
–
Electric oil pump
•
Motor state information / motor speed information
-A -W
Motor State Signal to HV ECU (Duty: %)
Motor Speed
(rpm)
30 40 502010
2, Motor Speed Info.
1, Motor State Info.
63 71 79 87 95

1,000
0
0
2,000
3,000
4,000
5,000
System normal
System malfunction
Controller overheat 2
Controller overheat 1
Low power supply
Motor
Stop
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission
Lubrication System
–
Hydraulic circuit
•
Both pumps are placed parallel with a check valve to
avoid loss of pressure through the inoperative pump
-A -W
Mechanical
Oil Pump
Electric Oil
Pump
Check
Valve

S1
Line
Pressure
To SL1
and SL2
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission
Lubrication System
–
ATF cooler is used to increase cooling performance.
Therefore, the transmission enables high output.
-A -W
Oil Cooler
Inlet Hose
Oil Cooler
Outlet Hose
Electric Oil Pump
Radiator
ATF Cooler
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission
Solenoid Valve
–
3 solenoid valves are used
-A -W
Solenoid
Valve SL1
Lower Valve Body

Solenoid
Valve SL2
Solenoid
Valve S1
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission
ATF Pressure Switch
–
3 pressure switches are used to detect operation
condition of hydraulic unit
-A -W
ATF Pressure
Switch 1
ATF Pressure
Switch 2
ATF Pressure
Switch 3
Lower Valve Body
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
Reference
The driver selects the “S” range position by moving the shift lever. At this time, the
engine brake range position is selected from the S4 to S7 range depending on the
vehicle speed.
L110F Hybrid Transmission
Sequential Shiftmatic System
–
In the S range, 8 stages of engine braking force can
be selected by operating the shift lever.

-A -W
[Engine Braking Force ]
[Vehicle Speed]
0
S8 (D)
S7
S1
S2
S3
S4
S5
S6
High
Low
Strong
“S” Range
0
100 (62) 200 (124)
Shift
Range
Vehicle Speed [km/h (mph)]
S4 S5 S6 S7
50 (31)
S4 S5 S6 S7
-A
-W
150 (93)
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
Inverter

Inverter
L110F Hybrid Transmission
Sequential Shiftmatic System
–
The engine brake force control
-A -W
Confidential
Engine
MG1
Week Engine Brake Force
Fuel Cut
Strong Engine Brake Force
MG2
Inverter
Inverter
Engine
MG1
Fuel Cut
MG2
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Body ElectricalModel Outline Hybrid System Engine Chassisfor Technician
L110F Hybrid Transmission
Sequential Shiftmatic System
–
This system limits the switching of the engine brake
range if the vehicle is cruising at a speed that is higher
than the limit speed, and informs the driver by
sounding an alarm.
–
If the vehicle accelerates from engine brake range

position 1 through 5, the engine brake range goes up
automatically to position 6 in accordance with the
vehicle speed. At this time, the shift range indicator
light will also switch.
-A -W
104 (64.6)89 (55.3)S4 to S3
89 (55.3)76 (47.2)S3 to S2
66 (41.0)57 (35.4)S2 to S1
-W-A
142 (88.2)
180 (111.8)
225 (139.0)

154 (96.0)S6 to S5
193 (120.0)S7 toS6
122 (75.8)S5 to S4

Limit Speed [km/h (mph)]
S8 to 7S
Engine Brake Range
Position